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This page is updated frequently with new Lithium Ion-related patent applications. Subscribe to the Lithium Ion RSS feed to automatically get the update: related Lithium RSS feeds. RSS updates for this page: Lithium Ion RSS RSS


Method for producing slurry for heat-resistant layer for lithium ion secondary battery and method for producing…

Supplemental, backup or emergency lighting systems and methods

Date/App# patent app List of recent Lithium Ion-related patents
08/28/14
20140242464
 Secondary battery of improved lithium ion mobility and cell capacity patent thumbnailnew patent Secondary battery of improved lithium ion mobility and cell capacity
Provided is a lithium secondary battery having improved discharge characteristics in a range of high-rate discharge while minimizing a dead volume and at the same time, having increased cell capacity via increased electrode density and electrode loading amounts, by inclusion of two or more active materials having different redox levels so as to exert superior discharge characteristics in the range of high-rate discharge via sequential action of cathode active materials in a discharge process, and preferably having different particle diameters.. .
08/28/14
20140242452
 Lithium ion battery patent thumbnailnew patent Lithium ion battery
A lithium-ion cell has a positive electrode comprising at least one active material comprising a lithium transition metal compound in a binder comprising at least one binder material with functional groups selected from alkali and alkaline earth salts of acid groups and hydroxyl groups, amine groups, isocyanate groups, urethane groups, urea groups, amide groups, and combinations of these; a negative electrode comprising metallic lithium or a lithium host material with appropriately low operation voltage vs. Metallic lithium; a nonaqueous solution of a lithium salt; and an electrically nonconductive, ion-pervious separator positioned between the electrodes..
08/28/14
20140242434
 Negative electrode for lithium ion secondary batteries and lithium ion secondary battery patent thumbnailnew patent Negative electrode for lithium ion secondary batteries and lithium ion secondary battery
Provided are negative electrode for lithium ion secondary batteries, which is capable of realizing a lithium ion secondary battery having characteristics such as stable output and stable capacity, and a lithium ion secondary battery having characteristics such as stable output and stable capacity. The negative electrode for lithium ion secondary batteries includes a laminated body of a negative electrode material layer that is mainly constituted by a carbonaceous material, and a negative electrode current collector.
08/28/14
20140242296
 Method for producing slurry for heat-resistant layer for lithium ion secondary battery and method for producing electrode for lithium ion secondary battery patent thumbnailnew patent Method for producing slurry for heat-resistant layer for lithium ion secondary battery and method for producing electrode for lithium ion secondary battery
A method for producing a slurry for a heat-resistant layer for a lithium ion secondary battery, including: a step of producing a polymer aqueous dispersion by polymerizing a monomer in an aqueous medium to give a polymer aqueous dispersion containing a polymer with a polymerization conversion rate of 90 to 100%, a step of obtaining a mixed solution by mixing n-methylpyrrolidone and the polymer aqueous dispersion, a step of obtaining a binder composition by removing an unreacted monomer and the aqueous medium from the mixed solution, and a step of obtaining a slurry by dispersing non-conductive microparticles in the binder composition, wherein the step of obtaining the binder composition includes removing the aqueous medium and the unreacted monomer by using a distillation column under a reduced pressure so that the binder composition contains the unreacted monomer and a water content in predetermined amounts.. .
08/28/14
20140242295
 Method for producing slurry for heat-resistant layer for lithium ion secondary battery and method for producing electrode for lithium ion secondary battery patent thumbnailnew patent Method for producing slurry for heat-resistant layer for lithium ion secondary battery and method for producing electrode for lithium ion secondary battery
A method for producing a slurry for a heat-resistant layer for a lithium ion secondary battery, including: a step of producing a polymer aqueous dispersion by polymerizing a monomer in an aqueous medium to give a polymer aqueous dispersion containing a polymer with a polymerization conversion rate of 90 to 100%, a step of obtaining a mixed solution by mixing n-methylpyrrolidone and the polymer aqueous dispersion, a step of obtaining a binder composition by removing an unreacted monomer and the aqueous medium from the mixed solution in a substitution tank, and a step of obtaining a slurry by dispersing non-conductive microparticles in the binder composition, wherein the step of obtaining the binder composition includes removing the aqueous medium and the unreacted monomer, while feeding the mixed solution to an external heating device and feeding a heat quantity to: the mixed solution that has been fed to the external heating device.. .
08/28/14
20140241131
 Electronic timepiece patent thumbnailnew patent Electronic timepiece
An electronic timepiece includes a light-transmitting dial; a solar panel which is arranged on a side opposite to a display surface of the dial; and a secondary battery to which power generated by the solar panel is charged. The solar panel is divided into seven or more solar cells and the respective solar cells are connected to one another in series.
08/28/14
20140240966
 Supplemental, backup or emergency lighting systems and methods patent thumbnailnew patent Supplemental, backup or emergency lighting systems and methods
A supplemental lighting system includes a charging circuit having a reference voltage for the charging circuit set through changes to reference resistances, and/or having an output voltage, current or power set through a connector configuration. In one example, a battery storage connector can be used to select a particular resistance for setting the reference voltage.
08/28/14
20140239918
 Combination and modified electrolyte to reduce risk of premature lithium ion battery failure, including in aircraft applications patent thumbnailnew patent Combination and modified electrolyte to reduce risk of premature lithium ion battery failure, including in aircraft applications
A combined system reinforces the safety of lithium ion batteries by redesign of electrolyte and the charging current a) modifying the electrolyte to inhibit or prevent dendrite growth preferably by the addition of lithiated polyphenoxy polyethylene glycol and/or a second surface active compound chosen from the family of fluorosurfactants, and/or a modest amount of lithium or sodium borate, b) modifying the charging cycle by a so-called ripple current in order to inhibit or prevent dendrite growth (ripple current meaning oscillation in the amount of amperage or voltage in the charging cycle), c) programmable battery management systems with temperature and electrical limits integrated in order to eliminate from the circuit and bypass malfunctioning cells based on past performance of the charging cycle and voltage endpoints achieved, d) minimizing any transient currents and voltages into or out of the battery system and e) maintaining a cool atmosphere in the battery space.. .
08/28/14
20140238480
 Nanostructured electrodes, methods of making electrodes, and methods of using electrodes patent thumbnailnew patent Nanostructured electrodes, methods of making electrodes, and methods of using electrodes
Embodiments of the present disclosure provide for electrodes, devices including electrodes, methods of making electrodes, and the like. In an embodiment, the electrode includes mos2, in particular, mos2 nanostructures (e.g., mos2 nano-petals).
08/21/14
20140234732
 Anode for lithium secondary battery, fabricating method thereof and lithium air battery having the same patent thumbnailAnode for lithium secondary battery, fabricating method thereof and lithium air battery having the same
Provided is an anode for a lithium secondary battery capable of improving the performance and the life of a lithium air battery by forming the anode so that lithium metal is sealed, but migration of lithium ions is possible, and thus, preventing corrosion of a lithium metal and the generation of hydrogen gas caused by permeation of moisture and oxygen gas into the anode, a manufacturing method thereof, and a lithium air battery containing the same.. .
08/21/14
20140234726
Lithium battery with composite solid electrolyte
An electrochemical cell in one embodiment includes a negative electrode including a form of lithium, a positive electrode spaced apart from the negative electrode, a separator positioned between the negative electrode and the positive electrode, and a first lithium ion conducting and ionically insulating composite solid electrolyte layer positioned between the negative electrode and the positive electrode.. .
08/21/14
20140234698
Packaging material for lithium ion battery
Provided is a packaging material for a lithium ion battery. The packaging material includes at least a first adhesive layer, a metal foil layer, a corrosion prevention-treated layer, a second adhesive layer, and a sealant layer which are sequentially laminated on one surface of a base material layer.
08/21/14
20140231721
Lithium silicate-based compound, positive electrode active material for lithium ion secondary battery, and lithium ion secondary battery using the same
The lithium silicate-based compound is represented by li1.5fesio4.25 the lithium silicate-based compound is a compound including: lithium (li); iron (fe); silicon (si); and oxygen (o), and expressed by a composition formula, li1+2δfesio4+δ−c(−0.25≦δ≦0.25, 0≦c≦0.5). The lithium silicate-based compound, of which iron (fe) is trivalent, exerts a remarkable chemical stability as compared to li2fesio4..
08/21/14
20140230240
Method of producing lithium ion secondary battery
A method of producing a lithium ion secondary battery includes: a first winding process of winding a positive electrode plate (2) in a roll shape to form a first roll (11) and to provide a curling tendency to the positive electrode plate (2), and of winding a negative electrode plate (3) in a roll shape to form a second roll (12) and to provide a curling tendency to the negative electrode plate (3); and a second winding process of unrolling the positive electrode plate (2) from the first roll (11), unrolling the negative electrode plate (3) from the second roll (12), and winding the unrolled positive electrode plate (2) and negative electrode plate (3) in a roll shape to form a third roll (13) while allowing the positive electrode plate (2) and the negative electrode plate (3) to overlap with each other and maintaining the curling tendency.. .
08/21/14
20140230208
Electric double layer capacitor, lithium ion capacitor and manufacturing method thereof
A thin energy storage device having high capacity is obtained. An energy storage device having high output is obtained.
08/14/14
20140227606
All solid state battery and method for producing same
An all solid state battery can inhibit interface resistance between a cathode active material and a solid electrolyte material from increasing with time. The battery includes a cathode active material layer, an anode active material layer, and a solid electrolyte layer formed therebetween.
08/14/14
20140227601
Negative electrode for lithium ion battery, and lithium ion battery
The purpose of the present invention is to provide a lithium-ion battery that exhibits excellent long-term life properties, does not suffer from rapid capacity degradation, and exhibits excellent charging/discharging characteristics in low-temperature environments. The present invention is directed to a negative electrode for a lithium ion battery, which comprises a negative electrode active material containing a graphite or an amorphous carbon, conductive additives containing a graphite, and a binder; and a lithium ion battery comprising this negative electrode.
08/14/14
20140227600
Composite active material for lithium secondary batteries and method for producing same
The purpose of the present invention is to provide: a composite active material for lithium secondary batteries, which is capable of providing a lithium secondary battery that has large charge and discharge capacity, high-rate charge and discharge characteristics and good cycle characteristics at the same time; and a method for producing the composite active material for lithium secondary batteries. A method of producing a composite active material for lithium secondary batteries of the present invention comprises: a mixing step wherein graphite having a specific surface area of 30 m2/g or more and a battery active material that is capable of combining with lithium ions are mixed with each other, thereby obtaining a mixture; and a spheroidizing step wherein the mixture is subjected to a spheroidization treatment, thereby producing a generally spherical composite active material for lithium secondary batteries, said composite active material containing graphite and the battery active material that is capable of combining with lithium ions..
08/14/14
20140227597
Cathode material for lithium ion secondary batteries, cathode member for lithium ion secondary batteries, and lithium ion secondary battery
A cathode material for a lithium ion secondary battery includes an oxide represented by a composition formula li2+x(m,ma)(si,mb)o4, wherein m represents at least one element selected from the group consisting of fe, mn, co and ni; ma and mb represent elements substituted for parts of m and si, respectively, to compensate for an electric charge equivalent to x of li+; and at least one of ma and mb is included. In the composition formula representing the oxide, 0<x≦0.25..
08/14/14
20140227596
Lithium ion secondary battery positive electrode material, lithium ion secondary battery positive electrode member, and lithium ion secondary battery
A cathode material for a lithium ion secondary battery includes an oxide represented by a composition formula li2-xmiiym(si,mb)o4, wherein mii represents a divalent element; m represents at least one element selected from the group consisting of fe, mn, co and ni; and mb represents, as an optional component, an element substituted for si to compensate for a difference between an electric charge of [li2]2+ and an electric change of [li2-xmiiy]n+ as needed. In the composition formula representing the oxide, x and y are −0.25<x≦0.25 and 0<y≦0.25..
08/14/14
20140227584
Fluorinated electrolyte compositions
Electrolyte compositions containing a solvent mixture comprising 2,2,-difluoroethyl acetate and ethylene carbonate are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries..
08/14/14
20140227572
Cable-type secondary battery
Provided is a cable-type secondary battery extending longitudinally including a lithium ion supplying core comprising an electrolyte, an inner electrode support of a hollow structure formed to surround an outer surface of the lithium ion supplying core, an inner electrode formed on a surface of the inner electrode support and including an inner current collector and an inner electrode active material, a separation layer formed to surround an outer surface of the inner electrode to prevent a short circuit between electrodes, and an outer electrode formed to surround an outer surface of the separation layer and including an outer electrode active material layer and an outer current collector.. .
08/14/14
20140227522
Carbon material for lithium ion secondary battery, negative electrode material for lithium ion secondary battery and lithium ion secondary battery
A carbon material for a lithium ion secondary battery according to the present invention is a carbon material for a lithium ion secondary battery. The carbon material for the lithium ion secondary battery contains a graphite as a major component of the carbon material and a hard carbon.
08/14/14
20140227432
Lithium metal doped electrodes for lithium-ion rechargeable chemistry
An embodiment of the invention combines the superior performance of a polyvinylidene difluoride (pvdf) or polyethyleneoxide (poe) binder, the strong binding force of a styrene-butadiene (sbr) binder, and a source of lithium ions in the form of solid lithium metal powder (slmp) to form an electrode system that has improved performance as compared to pvdf/sbr binder based electrodes. This invention will provide a new way to achieve improved results at a much reduced cost..
08/14/14
20140225566
Scalable intelligent power supply system and method
A scalable intelligent power-supply system and method capable of powering a defined load for a specified period of time is disclosed and claimed. Multiple external ac and dc inputs supply power to the system if available and required.
08/07/14
20140220448
Production of nanostructured li4ti5o12 with superior high rate performance
A process of preparing nanostructured lithium titanate particles. The process contains the steps of providing a solvent containing a soft-template compound, a lithium ion-containing compound, and a titanium ion-containing compound; removing the solvent to obtain a lithium titanate precursor; and calcining the precursor followed by milling and annealing.
08/07/14
20140220446
Positive electrode material for lithium ion secondary batteries, positive electrode member for lithium ion secondary batteries, lithium ion secondary battery, and method for producing positive electrode material for lithium ion secondary batteries
A cathode material for a lithium ion secondary battery is a composite grain including an oxide and a carbon material. The oxide includes, as constituent elements, li, si and at least one of fe and mn.
08/07/14
20140220442
Lithium secondary battery and method of manufacturing same
A lithium secondary battery provided by this invention has electrodes and configured in a structure in which active material layers, including active materials and binders, are held by collectors. The active material of at least one of the positive electrode and the negative electrode of the electrodes is formed from a metal compound which stores and releases lithium ions through conversion reactions.
08/07/14
20140220393
Lithium ion secondary battery
A battery using an active material that can function as a secondary battery has been developed by using the same material as active material of the positive electrode and the negative electrode, and a nonpolar secondary battery has been constructed. Because the terminal electrodes are not distinguished, there is no need to be aware of the mounting direction, so that the mounting process can be simplified.
08/07/14
20140217992
Separators for lithium-sulfur batteries
This invention, in some variations, provides a separator for a lithium-sulfur battery, comprising a porous substrate that is permeable to lithium ions; and a lithium-ion-conducting metal oxide layer on the substrate, wherein the metal oxide layer includes deposits of sulfur that are intentionally introduced prior to battery operation. The deposits of sulfur may be derived from treatment of the metal oxide layer with one or more sulfur-containing precursors (e.g., lithium polysulfides) prior to operation of the lithium-sulfur battery.
08/07/14
20140217820
Power supply device
Embodiments of the present invention include a power supply device having one or more converters (dc/dc and/or ac/dc) that convert input power supplied from one or more power sources, and a secondary battery which is charged by receiving power supplied from power sources. In addition, however, the power supply device has the unique feature of increasing power output by serially connecting the secondary battery to the dc/dc converter and/or ac/dc converter.
08/07/14
20140217322
Lithium ion capacitor
Wherein x is at least one element selected from boron, aluminum, silicon, phosphorus, and arsenic, y is a halogen, z is lithium or magnesium, m is an integer from 3 to 6, and n is an integer from 0 to 5, provided that m+n≧3.. .
07/31/14
20140214346
Adaptive available power estimation for high voltage lithium ion battery
The present invention provides for a method and computer program product for estimating battery available power from a battery system in relation to a cell voltage, comprising: determining the cell voltage, a power command of the battery system; and a cell voltage threshold. The processes used by the present invention, include a static and a dynamic portion in which cell voltages, cell voltage thresholds and power command are associated and processed using a feed forward estimator and a proportional-integral-derivation (pid) controller to determine the final power command estimation for the requisite battery system..
07/31/14
20140212763
Diamond film coated electrode for battery
A composite electrode and a lithium-based battery are disclosed, wherein the composite electrode comprises: a substrate and a conductive layer formed on the substrate, wherein the conductive layer comprises graphite powders, si-based powders, ti-based powders, or a combination thereof embedded in a conductive matrix and coated with diamond films, and the diamond films are formed of diamond grains. The novel electrodes of the present invention when used in the li-based battery can provide superior performance including excellent chemical inertness, physical integrity, and charge-discharge cycling life-time, and exhibit high electric conductivity and excellent lithium ion permeability..
07/31/14
20140212762
Composite electrode material
Particles (a) including an element capable of intercalating and deintercalating lithium ions, carbon particles (b) capable of intercalating and deintercalating lithium ions, multi-walled carbon nanotubes (c), carbon nanofibers (d) and optionally electrically conductive carbon particles (e) are mixed in the presence of shear force to obtain a composite electrode material. A lithium ion secondary battery is obtained using the above composite electrode material..
07/31/14
20140212761
Electrode material, electrode and lithium ion battery
An electrode material of the invention includes an agglomerate formed by agglomerating carbonaceous coated electrode active material particles obtained by forming a carbonaceous coat on surfaces of electrode active material particles at a coating rate of 80% or more, and the carbonaceous coated electrode active material particles include first carbonaceous coated electrode active material particles on which a carbonaceous coat having a film thickness in a range of 0.1 nm to 3.0 nm and an average film thickness in a range of 1.0 nm to 2.0 nm is formed and second carbonaceous coated electrode active material particles on which a carbonaceous coat having a film thickness in a range of 1.0 nm to 10.0 nm and an average film thickness in a range of more than 2.0 nm to 7.0 nm is formed.. .
07/31/14
20140212758
Cathode active material for lithium ion secondary battery, and process for its production
To provide a cathode active material for a lithium ion secondary battery excellent in the cycle characteristics and rate characteristics even when charging is conducted at a high voltage. A cathode active material for a lithium ion secondary battery, which comprises particles (iii) having a covering layer comprising a metal oxide (i) containing at least one metal element selected from the group consisting of elements in groups 3 and 13 of the periodic table and lanthanoid elements, and a compound (ii) containing li and p, on the surface of a lithium-containing composite oxide comprising lithium and a transition metal element, wherein the atomic ratio of said p to said metal element (p/metal element) contained within 5 nm of the surface layer of the particles (iii) is from 0.03 to 0.45..
07/31/14
20140212756
Lithium iron phosphate cathode material and method for producing same
A lithium iron phosphate cathode material has high electron conductivity and high lithium ion conductivity, in other words, has excellent performance as an electrode material, which is provided by a carbon coating formed using a small amount of a carbon material. A method for producing the lithium iron phosphate cathode material is also provided.
07/31/14
20140212748
Advanced separators based on aromatic polymer for high energy density lithium batteries
A process includes casting a solution including poly(phenylene oxide), inorganic nanoparticles, a solvent, and a non-solvent on a substrate; and removing the solvent to form a porous film; wherein: the porous film is configured for use as a porous separator for a lithium ion battery.. .
07/31/14
20140212735
System, method and apparatus for forming a thin film lithium ion battery
A system and method of forming a thin film battery includes a substrate, a first current collector formed on the substrate, a cathode layer formed on a portion of the first current collector, a solid layer of electrolyte material formed on the cathode layer, a silicon-metal thin film anode layer formed on the solid layer of electrolyte material and a second current collector electrically coupled to the silicon-metal thin film anode layer. A method and a system for forming the thin film battery are also disclosed..
07/31/14
20140212720
Cable-type secondary battery
Disclosed herein is a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode, comprising an open-structured inner current collector surrounding the outer surface of the core for supplying lithium ions, an inner electrode active material layer formed on the surface of the inner current collector, and a first electrolyte-absorbing layer formed on the outer surface of the inner electrode active material layer; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; a second electrolyte-absorbing layer formed on the surface of the separator; and an outer electrode surrounding the outer surface of the second electrolyte-absorbing layer and comprising an outer electrode active material layer and an outer current collector.. .
07/31/14
20140212719
Cable-type secondary battery
Described herein is a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode surrounding the outer surface of the core for supplying lithium ions, and comprising an inner current collector in the form of a pipe having a three-dimensional network structure, the inner current collector being coated with an inner electrode active material on the outer surface thereof; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector.. .
07/31/14
20140210399
Portable electric power source for aircraft
A method and apparatus for providing portable ground power for aircraft. A ground power unit includes a lithium ion cell battery assembly and a standard three-pin aircraft ground power connector integrated into a single unit and packaged inside a ruggedized plastic housing with a carry handle, thereby eliminating the heavy and bulky power cables between the battery and connector.
07/31/14
20140210122
Porous manganese oxide absorbent for lithium having spinel type structure and a method of manufacturing the same
The present invention relates to a porous manganese oxide-based lithium absorbent and a method for preparing the same. The method includes the steps of preparing a mixture by mixing a reactant for the synthesis of a lithium-manganese oxide precursor powder with an inorganic binder, molding the mixture, preparing a porous lithium-manganese oxide precursor molded body by heat-treating the molded mixture, and acid-treating the porous lithium-manganese oxide precursor molded body such that lithium ions of the porous lithium-manganese oxide precursor are exchanged with hydrogen ions, wherein pores are formed in the lithium-manganese oxide precursor molded body by gas generated in the heat treatment.
07/24/14
20140205908
Enhanced-safety galvanic element
A separator for a galvanic element, more particularly a lithium ion cell, includes at least one positive electrode and at least one negative electrode that are configured to be separated by a separator. The separator includes a substrate composed of at least one high-temperature-resistant, fiber-forming polymer that has a melting point above 200° c.
07/24/14
20140205532
Method for producing electrode material for lithium ion batteries
A method for producing a graphie material for an electrode material for lithium ion batteries, including a step for exothermically graphitizing a carbon material by directly passing an electric current therethrough. The carbon material has an compact powder resistivity of 0.4 Ω·cm or less when compressed to a density of 1.4 g/cm3, has an angle of repose in the range of 20° to 50° inclusive, and has a particle size (d90) in the volume-based particle size distribution measured using laser diffraction of 120 μm or less.
07/24/14
20140205479
Portable fan
A battery-powered portable personal fan is described with reference to two embodiments, both of which comprise a two-part base, of which the upper part is provided with an elongate neck to which a ball-shaped motor housing is pivotally attached. The motor housing contains a motor having a drive shaft which drives a two-blade at least 5000 rpm on a high-speed setting.
07/24/14
20140203765
Storage battery device and storage battery system
According to one embodiment, a storage battery device includes a battery unit, a charging unit, a terminal, and a first circuit breaking unit. The battery unit includes a lithium ion battery and is connectable in parallel to other storage battery device that charges an external lithium ion battery.
07/17/14
20140199588
Electrolytic copper foil, method of producing electrolytic copper foil, lithium ion secondary cell using electrolytic copper foil as collector
The present invention provides an electrodeposited copper foil having a tensile strength of at least 300 mpa and elongation rate of at least 3.0% after heat treatment at 350° c. For 1 hour and provides a copper foil which prevents the breakage of a current collector (copper foil) while maintaining adhesiveness between the current collector (copper foil) and the active material in response to substantial expansion and contraction of a si or sn alloy-based active material.
07/17/14
20140199577
Alkali metal intercalation material as an electrode in an electrolytic cell
The present invention provides an electrochemical cell that includes an anolyte compartment housing an anode electrode; a catholyte compartment housing a cathode electrode; and a solid alkali ion conductive electrolyte membrane separating the anolyte compartment from the cathode compartment. In some cases, the electrolyte membrane is selected from a sodium ion conductive electrolyte membrane and a lithium ion conductive membrane.
07/17/14
20140197801
Silicon-based electrode for a lithium-ion cell
A silicon-based electrode includes a silicon layer on a substrate, an electrically conductive layer overlying a top surface of the silicon layer, an optional polymer layer overlying the top surface of the electrically conducting layer, and a plurality of channels extending through the electrically conductive layer and the silicon layer to the substrate. The channels define sidewalls in the silicon layer.
07/10/14
20140193707
Sulfur-containing additives for electrochemical or optoelectronic devices
The invention relates to sulfur-containing compounds of the formula i, to their preparation, and to their use as additives in electrochemical or electrooptical devices, more particularly in electrolytes for lithium batteries, lithium ion batteries, double layer capacitors, lithium ion capacitors, solar cells, electrochromic displays, sensors and/or biosensors.. .
07/10/14
20140193689
Electrochemical cell, method of producing electrochemical cell, battery pack, and car
According to one embodiment, an electrochemical cell includes a positive electrode, a negative electrode, a sulfide-based solid electrolyte layer and an oxide-based solid electrolyte layer. The positive electrode includes positive electrode active material particles which absorb and release lithium ions at a potential of 3 v (vs.
07/10/14
20140193682
Lithium ion secondary battery and method for manufacturing lithium ion secondary battery
A ratio la/lb between lengths la and lb is defined as a first ratio, and a ratio sa/sb between areas sa and sb is defined as a second ratio. The first and second ratios are positioned within a region surrounded by lines connecting five points p1 to p5 in a coordinate system in which the first and second ratios are taken as the respective coordinate axes thereof.
07/10/14
20140193660
Electrolytic copper foil and method for producing the same
An electrolytic copper foil is provided. The electrolytic copper foil has a shiny side and a matte side opposing to the shiny side, wherein the difference in roughness between the shiny side and the matte side is 0.5 μm or less.
07/10/14
20140191731
Method for charging lithium ion secondary battery
Cccv charging is applied to a lithium ion secondary battery. During cc charging, a transition point ta appears in temperature rise gradient when battery temperature rises along with the charging, and with the transition point ta being a border, a temperature rise gradient in an initial t1 period is steeper than a temperature rise gradient in a t2 period following the t1 period.
07/03/14
20140186717
Lithium ion battery
A lithium ion battery includes a cathode, an anode, and an electrolyte sandwiched between the cathode and the anode. The cathode includes a cathode active material.
07/03/14
20140186704
Lithium ion secondary battery electrode, manufacturing process for the same, and lithium ion secondary battery using the electrode
A lithium ion secondary battery electrode includes a current collector, an active material layer containing a binder formed on a surface of the current collector, and a coated layer formed on the surface of at least a part of the active material layer, wherein the coated layer consists of an acrylic type copolymer cured substance comprising an acrylic type main chain and a side chain having polyester or polyether graft-polymerized to said acrylic type main chain and the coated layer is chemically bonded with the binder.. .
07/03/14
20140186696
Nonaqueous electrolyte secondary battery
To provide a nonaqueous electrolyte secondary battery, containing: a positive electrode, which contains a positive electrode active material capable of inserting and detaching anions; a negative electrode, which contains a negative electrode active material capable of accumulating and releasing metal lithium, or lithium ions, or both thereof; and a nonaqueous electrolyte formed by dissolving a lithium salt in a nonaqueous solvent, wherein the nonaqueous electrolyte secondary battery contains a solid lithium salt at 25° c., and discharge voltage of 4.0 v.. .
07/03/14
20140186693
Polymerized lithium ion battery cells and modules with permeability management features
A lithium ion (li-ion) battery module includes a container with one or more partitions that define compartments within the container. Each of the compartments is configured to receive and hold a prismatic li-ion electrochemical cell element and electrolyte.
07/03/14
20140186687
Polymerized lithium ion battery cells and modules with thermal management features
A lithium ion (li-ion) battery module includes a container with one or more partitions that define compartments within the container. Each of the compartments is configured to receive and hold a prismatic li-ion electrochemical cell element, and a cover is configured to be disposed over the container to close the compartments.
07/03/14
20140186683
Welding techniques for polymerized lithium ion battery cells and modules
A lithium ion (li-ion) battery cell includes a housing. The housing includes side walls coupled to and extending from a first portion of the housing to form an opening in the housing opposite the first portion of the housing.
07/03/14
20140186672
Cable-type secondary battery
The core disposed in the inner electrode having an open structure, from which the electrolyte of the core for supplying lithium ions can be easily penetrated into an electrode active material, thereby facilitating the supply and exchange of lithium ions.. .
07/03/14
20140186669
Polymerized lithium ion battery cells and modules with overmolded heat sinks
A lithium ion (li-ion) battery cell includes a prismatic housing that includes four sides formed by side walls coupled to and extending from a bottom portion of the housing. The housing is configured to receive and hold a prismatic li-ion electrochemical cell element.
07/03/14
20140186666
Modular cid assembly for a lithium ion battery
A modular current interrupt device includes an electrically-conductive rupture disc, an electrically-conductive pressure disc attached to the rupture disc to form an electrical pathway. An electrically-insulating ring partitions a perimeter of the rupture disc from a perimeter of the pressure disc, and a seating element secures the electrically-insulated ring to the pressure disc.
07/03/14
20140184159
Hybrid storage cell, vehicle and power storage unit employing same, smart grid vehicle system employing vehicle, and power supply network system employing power storage unit
Provided is a hybrid storage cell that can prevent overcharge, despite lacking an expensive protection switch or other device adapted to deal with high current or high voltage, in order to proactively prevent rupture or ignition of lithium ion storage cells or other organic solution storage cells in the event of unforeseen overcharging. The cell comprises a plurality of series-connected virtual cells (32) of parallel-connected organic solution storage cells (24a) and aqueous solution storage cells (26a), the organic solution storage cells and the aqueous solution storage cells having closely approximating average discharge voltages.
06/26/14
20140178776
Lithium-air battery and lithium anode composite thereof
A lithium-air battery having a lithium anode composite and an air electrode. The lithium anode composite includes a plate-shaped or strip-shaped anode current collector; two plate-shaped anode layers made from metallic lithium, an alloy primarily composed of lithium, or a compound primarily composed of lithium and arranged to sandwich a part of the anode current collector; two plate-shaped isolating layers made from glass ceramics having lithium ion conductivity and arranged to sandwich another part of the anode current collector and the whole of the two anode layers; and a junction provided to join and close outer peripheral portions of the two isolating layers with rest of the anode current collector being exposed outward between the two isolating layers.
06/26/14
20140178767
Secondary battery, battery pack and car
A secondary battery includes a positive electrode, a negative electrode containing a metal compound having a lithium ion absorption potential of 0.2v (vs. Li/li+) or more, a separator and a nonaqueous electrolyte.
06/26/14
20140178766
Collector and electrode structure, non-aqueous electrolyte cell, electrical double layer capacitor, lithium ion capacitor, or electrical storage device using same
Provided is a technique to confirm the performance of the conductive resin layer of a current collector without actually preparing an electrode structure, a non-aqueous electrolyte battery, an electrical double layer capacitor, a lithium ion capacitor, or an electrical storage device, and to confirm the performance of the conductive resin layer easily with high accuracy by a non-destructive test. A current collector includes a conductive substrate and a resin layer possessing conductivity, the resin layer being formed on at least one side of the conductive substrate.
06/26/14
20140178753
Lithium ion battery and electrode structure thereof
A lithium ion battery and an electrode structure thereof are provided. The electrode structure at least includes a current collecting substrate, an electrode active material layer on the current collecting substrate, and a complex thermo-sensitive coating layer sandwiched in between the current collecting substrate and the electrode active material layer.
06/26/14
20140178751
Lithium ion secondary battery and electrolyte additive for the same
Provided is an electrolyte additive for a lithium ion secondary battery including an organic lithium compound and a hyper-branched structure material. The electrolyte additive enhances the decomposition voltage of the electrolyte up to 5.5 v, and increases the heat endurable temperature by 10° c.
06/26/14
20140178726
Cable-type secondary battery
The core for supplying lithium ions is disposed in the inner electrode, from which the electrolyte of the core for supplying lithium ions can be easily penetrated into an electrode active material, thereby facilitating the supply and exchange of lithium ions.. .
06/26/14
20140178718
Electrochemical device
An electrochemical device includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode is formed of an electrode material including an anion doped conductive polymer.
06/26/14
20140178602
Pulse thermal processing of solid state lithium ion battery cathodes
A method of making a cathode for a battery includes the steps of depositing a precursor cathode film having a first crystallinity profile. The precursor cathode film is annealed by irradiating the precursor cathode film with from 1 to 100 photonic pulses having a wavelength of from 200 nm to 1600 nm, a pulse duration of from 0.01 μs and 5000 μs and a pulse frequency of from 1 nhz to 100 hz.
06/26/14
20140178594
Electrode manufacturing apparatus for lithium ion capacitor and electrode manufacturing method therefor
A time for doping an electrode material on an electrode sheet with a lithium ion can be reduced. The electrode manufacturing apparatus includes a processing chamber 200 to and from which the electrode sheet is loaded and unloaded; a rare gas supply unit 230 configured to introduce a rare gas into the processing chamber; an exhaust device 220 configured to exhaust an inside of the processing chamber to a certain vacuum level; and a lithium thermal spraying unit 210 configured to dope a carbon material c with the lithium ion by forming a lithium thin film on the carbon material of the electrode sheet w loaded into the processing chamber while melting and spraying lithium-containing powder..


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Lithium Ion topics: Lithium Ion, Electrolyte, Phosphoric Acid, Lithium Carbonate, Storage Device, Graphene Oxide, Aqueous Solution, Sodium Carbonate, Acidic Solution, Polymer Binder, Carboxylic Acid, Conductive Polymer, Contraction, High Energy, Surface Treatment

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