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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


Silicon-based electrode for a lithium-ion cell

Alkali metal intercalation material as an electrode in an electrolytic cell

Date/App# patent app List of recent Lithium Ion-related patents
07/17/14
20140199588
 Electrolytic copper foil, method of producing electrolytic copper foil, lithium ion secondary cell using electrolytic copper foil as collector patent thumbnailnew patent 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 patent thumbnailnew patent 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 patent thumbnailnew patent 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 patent thumbnailSulfur-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 patent thumbnailElectrochemical 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 patent thumbnailLithium 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 patent thumbnailElectrolytic 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 patent thumbnailMethod 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 patent thumbnailLithium 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 patent thumbnailLithium 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..
06/26/14
20140177136
Activated carbon, method for preparing the same, and electrochemical capacitor including the same
Disclosed herein are an activated carbon in which pores with pore sizes of 0.3˜5 nm account for 80% or higher based on an overall pore volume, a method for preparing the activated carbon, and an electrochemical capacitor including the activated carbon, so that, since the activated carbon has uniform sized fine pores, high-rate discharge characteristics, high-rate charging and discharging characteristics, and low-temperature characteristics can be improved; since the content of functional groups on the surface of the activated carbon is low, there can be provided a supercapacitor and a lithium ion capacitor, having improved high voltage and lifespan characteristics; and the time for preparing an active material can be significantly shortened and thus the material cost and the process cost can be remarkably reduced.. .
06/19/14
20140170505
Method of manufacturing lithium ion conductive solid electrolyte and lithium-ion secondary battery
A method of manufacturing a lithium ion conductive solid electrolyte includes (a) a step of preparing an object to be processed including a crystalline material, that includes alkali metal other than lithium and whose ionic conductivity at room temperature is greater than or equal to 1×10−13 s/cm; and (b) a step of performing an ion-exchange process on the object to be processed in molten salt including lithium ions.. .
06/19/14
20140170497
Negative electrode material for lithium ion batteries containing surface-fluorinated b-type titanium oxide powder, method for producing same, and lithium ion battery using same
A problem to be solved is to enhance the charge and discharge characteristics and rate characteristics of a b-type titanium oxide (tio2(b)) powder by a simple treatment and to provide a b-type titanium oxide powder that can be suitably used as a negative electrode material for a lithium ion battery. A b-type titanium oxide powder is allowed to undergo a reaction under a fluorine-containing gas atmosphere at 0° c.
06/19/14
20140170491
Mesoporous starburst carbon incorporated with metal nanocrystals or metal oxide nanocrystals, and uses thereof
A composition is provided that includes mesoporous carbon domains. Each of the mesoporous carbon domains is incorporated with particles of metal or metal oxide in an amount of from 40 to 85 total weight percent of the composition.
06/19/14
20140170489
Method of manufacturing negative electrode material for lithium ion secondary battery, and negative electrode material for lithium ion secondary battery
In manufacturing of a negative electrode material of a lithium ion secondary battery provided with a negative electrode mixture layer including a negative electrode active substance on a surface of a negative electrode current collector, one or mixture selected from granular materials alloyable with lithium and carbon materials for storing and releasing lithium is used as the negative electrode active substance; manufacturing method of a negative electrode material for a lithium ion secondary battery employed is characterized in that an electro-deposited copper foil in which a surface roughness (ra) is 0.20 μm<ra<0.50 μm and the surface roughness (ra) satisfies [0.053×d50(c)] μm to [0.210×d50(c)] μm where (d50(c)) is an average particle size of the negative electrode active substance is selectively used as the negative electrode current collector; a silane coupling agent treatment layer is provided on a surface of the electro-deposited copper foil.. .
06/19/14
20140170488
Collector, electrode structure, non-aqueous electrolyte cell, and electricity storage component
An object of the present invention is to provide a current collector which can decrease the internal resistance of a non-aqueous electrolyte battery, be used suitably for a non-aqueous electrolyte battery such as a lithium ion secondary battery and the like or for an electrical storage device such as a lithium ion capacitor and the like, and improve high rate characteristics. According to the present invention, a current collector which is structured by forming a resin layer possessing conductivity on at least one side of a conductive substrate is provided.
06/19/14
20140170483
Method for the preparation of graphene/silicon multilayer structured anodes for lithium ion batteries
Multilayer structures with alternating graphene and si thin films were constructed by a repeated process of filtering liquid-phase exfoliated grapheme film and subsequent coating of amorphous si film using plasma-enhanced chemical vapor deposition (pecvd) method. The multilayer-structure composite films, fabricated on copper current collectors, can be directly used as anodes for rechargeable lithium-ion batteries (libs) without the addition of polymer binders or conductive additives.
06/19/14
20140170481
Lithium ion battery
It is an object of this exemplary embodiment to provide a lithium ion battery using a lithium manganese complex oxide, in which the dissolution of manganese and resistance increase are inhibited, and which is excellent in life characteristics at high temperature. One aspect of this exemplary embodiment is a lithium ion battery comprising at least a positive electrode comprising a positive electrode active material, and an electrolytic solution, wherein the positive electrode active material is a lithium manganese complex oxide, the positive electrode comprises a bismuth oxide, and a metal compound attached to part of a surface of the lithium manganese complex oxide, and a dissolution rate of a metal of the metal compound in the electrolytic solution is lower than a dissolution rate of manganese of the lithium manganese complex oxide..
06/19/14
20140170480
Composite electrodes for lithium ion battery and method of making
A method for making a composite electrode for a lithium ion battery comprises the steps of: preparing a slurry containing particles of inorganic electrode material(s) suspended in a solvent; preheating a porous metallic substrate; loading the metallic substrate with the slurry; baking the loaded substrate at a first temperature; curing the baked substrate at a second temperature sufficient to form a desired nanocrystalline material within the pores of the substrate; calendaring the cured composite to reduce internal porosity; and, annealing the calendared composite at a third temperature to produce a self-supporting multiphase electrode. Because of the calendaring step, the resulting electrode is self-supporting, has improved current collecting properties, and improved cycling lifetime.
06/19/14
20140170455
Cable-type secondary battery
The present invention relates to 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 an 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; 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.. .
06/19/14
20140170450
Lithium ion secondary battery
A lithium ion secondary battery of an embodiment includes: a battery can; an electrode assembly in the battery can formed by rolling up a positive electrode, a separator and a negative electrode; an organic electrolyte solution in the battery can; a positive electrode lead in the battery can connected to the positive electrode; a negative electrode lead in the battery can connected to the negative electrode; and an overcharge preventer in the battery can; a cap body sealing the battery can; a positive electrode terminal fixed to the cap body and connected to the positive electrode lead; and a negative electrode terminal fixed to the cap body and connected to the negative electrode lead.. .
06/19/14
20140170449
Lithium ion secondary battery
A lithium ion secondary battery has a battery can, an electrode assembly in the battery can formed by rolling up a positive electrode, a separator, and a negative electrode, an organic electrolyte solution in the battery can, a positive electrode lead in the battery can connected to the positive electrode, a negative electrode lead in the battery can connected to the negative electrode, an overcharge preventer, a cap body sealing the battery can, a positive electrode terminal fixed to the cap body and connected to the positive electrode lead, and a negative electrode terminal fixed to the cap body and connected to the negative electrode lead.. .
06/19/14
20140170448
Lithium-ion secondary battery
A lithium-ion secondary battery having a positive electrode capable of occluding and releasing lithium ions, a negative electrode capable of occluding and releasing lithium ions, a separator interposed between the positive electrode and the negative electrode, an electrolytic solution, and a current breaking mechanism that works in response to the rise of the battery's internal pressure, wherein the electrolytic solution is incorporated with an aromatic compound and the positive electrode is incorporated with a carbon dioxide gas generating agent which is represented by the formula axco3 or ayhco3. It is highly responsive to overcharging owing to the current breaking mechanism attached thereto which activates in the early stage of overcharging.
06/19/14
20140166946
Method of manufacturing positive electrode active material for lithium ion battery
At least one of an aqueous solution a containing lithium, an aqueous solution b containing iron, manganese, cobalt, or nickel, and an aqueous solution c containing a phosphoric acid includes graphene oxide. The aqueous solution a is dripped into the aqueous solution c, so that a mixed solution e including a precipitate d is prepared.
06/19/14
20140166930
Lithium ion conductive substance, lithium ion conductive solid electrolyte using the lithium ion conductive substance, protective layer for an electrode of a lithium ion battery, and method for manufacturing the lithium ion conductive substance
Furthermore, a method for manufacturing the lithium ion conductive substance is provided that includes the following steps: (a) a step of forming an inorganic substance that contains predetermined quantities of a li component, an al component, a ti component, a si component, and a p component, into a sheet shape, and (b) a step of interposing between materials that contain at least one kind of element selected from zr, hf, y, and sm, and sintering, a sheet-shaped formed body obtained at step (a).. .
06/19/14
20140166929
Method for manufacturing carbon material for lithium ion secondary batteries, carbon material for lithium ion secondary batteries, negative electrode active material for lithium ion secondary batteries, composition, carbon composite for negative electrode materials of lithium ion secondary batteries, negative electrode compound for lithium ion secondary batteries, negative electrode for lithium ion secondary batteries, and lithium ion secondary battery
There is provided a method for manufacturing the lithium ion secondary batteries includes a mixing step of mixing a phenol resin and a resin composition containing silica particles so as to obtain a mixture, a spraying step of spraying the mixture obtained in the mixing step so as to form liquid droplets, a first thermal treatment step of carrying out a first thermal treatment on the liquid droplets obtained in the spraying step so as to generate a carbon precursor, and a second thermal treatment step of carrying out a second thermal treatment, which is carried out at a higher temperature than the first thermal treatment, on the carbon precursor obtained in the first thermal treatment step so as to generate a carbon material containing carbon and silicon oxide represented by siox (0<x<2).. .
06/12/14
20140162147
Electrochemical device
An electrochemical device including: a positive electrode including oxygen as a positive active material; a negative electrode including a lithium ion-intercalatable/deintercalatable material as a negative active material; and an electrolytic solution in fluid communication with the positive electrode and the negative electrode and including a solvent and an oxygen absorbing/desorbing material with an oxygen binding rate of about 60 to about 95% in a pure oxygen atmosphere.. .
06/12/14
20140162123
Silicon oxide material, making method, negative electrode, lithium ion secondary battery, and electrochemical capacitor
A silicon oxide material having a cobalt content of 2-200 ppm is provided. A negative electrode is formed using the silicon oxide material as active material.
06/12/14
20140162122
Collector and electrode structure, non-aqueous electrolyte cell, electrical double layer capacitor, lithium ion capacitor, or electricity storage component using same
An object of the present invention is to improve an adhesion between the surface of a conductive resin layer and an active material, which are provided to a current collector. Another object of the present invention is to improve a high rate characteristics or electrode lifetime of a non-aqueous electrolyte battery, an electrical double layer capacitor, a lithium ion capacitor and the like which uses the current collector.
06/12/14
20140162118
Electrode structure of lithium ion battery
An electrode structure of a lithium ion battery includes a current collector, at least one energy type active layer, and at least one power type active layer. The energy type active layer and the power type active layer are formed on the current collector.
06/12/14
20140162113
All-solid-state lithium secondary battery and method for producing the same
An all-solid-state lithium secondary battery includes a positive electrode; a negative electrode; and a solid electrolyte arranged between the positive and negative electrodes, to conduct lithium ions. In the all-solid-state lithium secondary battery, a mixed layer is in close contact with a surface of the solid electrolyte adjacent to the positive electrode, the mixed layer containing the positive-electrode active material and (lix(1−α), mxα/β)γ+(b1−y, ay)z+o2−δ (wherein in the formula, m and a each represent at least one or more elements selected from c, al, si, ga, ge, in, and sn, α satisfies 0≦α<1, β represents the valence of m, γ represents the average valence of (li+x(1−α), mα), y satisfies 0≦y<1, z represents the average valence of (b1−y, ay) and x, α, β, γ, z, and γ satisfy the relational expression (x(1−α)+xα/β)γ+z=2δ) serving as a matrix..
06/05/14
20140154581
Cathode active material for lithium ion secondary battery
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 al, y, ga, in, la, pr, nd, gd, dy, er and yb, and a compound (ii) containing li and at least one non-metal element selected from the group consisting of s and b, on the surface of a lithium-containing composite oxide, wherein the atomic ratio (the non-metal element/the metal element) contained within 5 nm of the surface layer of the particles (iii) is within a specific range..
06/05/14
20140154580
Positive electrode for lithium secondary battery and lithium secondary battery having the same
A positive electrode for a lithium secondary battery includes a positive activation material mixture that intercalates and de-intercalates lithium ions, wherein a first positive activation material having an average particle diameter d50 of from 12.5 μm to 22 μm and a second positive activation material having an average particle diameter d50 of from 1 μm to 5 μm are mixed with a weight ratio of from 95:5 to 60:40.. .
06/05/14
20140154579
Lithium ion secondary battery
A lithium ion secondary battery 100a has negative electrode active material particles 710a which include graphite particles that are at least partially covered by an amorphous carbon film 750. The negative electrode, active material particles 710a have a tg weight-loss-on-heating onset temperature t1 which satisfies the condition 500° c.≦t1≦615° c.
06/05/14
20140154577
Lithium ion batteries using discrete carbon nanotubes, methods for production thereof and products obtained therefrom
Compositions, and methods of obtaining them, useful for lithium ion batteries comprising discrete oxidized carbon nanotubes having attached to their surface lithium ion active materials in the form of nanometer sized crystals or layers. The composition can further comprise graphene or oxygenated graphene..
06/05/14
20140154570
Positive electrode material for lithium ion secondary cell and lithium ion secondary cell
A positive electrode material for a lithium ion secondary cell, includes: a binding agent in which an active material formed from a lithium metal oxide are dispersed together with barium titanate and conductive carbon.. .
06/05/14
20140151598
Production of battery grade materials via an oxalate method
An active electrode material for electrochemical devices such as lithium ion batteries includes a lithium transition metal oxide which is free of sodium and sulfur contaminants. The lithium transition metal oxide is prepared by calcining a mixture of a lithium precursor and a transition metal oxalate.
05/29/14
20140147753
Lithium ionic conductor and fabrication method therefor, and all-solid lithium secondary battery
A lithium ionic conductor (solid electrolyte) contains lithium (li), phosphorus (p), boron (b) and sulfur (s) as constituent elements and has a crystal structure that boron (b) is substituted for part of phosphorus (p) in the β structure of li3ps4.. .
05/29/14
20140147751
Silicon-carbon composite anode material for lithium ion batteries and a preparation method thereof
Disclosed in the invention are a silicon-carbon composite anode material for lithium ion batteries and a preparation method thereof the material consists of a porous silicon substrate and a carbon coating layer. The preparation method of the material comprises preparing a porous silicon substrate and a carbon coating layer.
05/29/14
20140147749
Electrode powder and electrode plate for lithium ion battery
Provided is an electrode powder and an electrode plate for a lithium ion battery. The electrode powder includes a core and a nano-coating layer.
05/29/14
20140147746
Collector for bipolar lithium ion secondary batteries
A collector for bipolar lithium ion secondary batteries comprises a first conductive layer that is obtained by adding a conductive filler to a base that contains an imide group-containing resin, and a second conductive layer that has a function of blocking lithium ions. The second conductive layer comprises a blocking resin layer that is obtained by adding a conductive filler to a base that contains a resin which contains no imide group, and a metal layer.
05/29/14
20140147744
Postive electrode material for lithium ion secondary battery, positive electrode for lithium ion secondary battery, and lithium ion secondary battery
Provided is a cathode material for lithium ion secondary battery containing a composite material of a lithium silicate crystal and a carbon material. The composite material shows a peak in a wave number range from 1400 cm−1 to 1550 cm−1 in infrared absorption spectrum and shows no peak in a wave number range from 1000 cm−1 to 1150 cm−1 in raman spectrum..
05/29/14
20140147715
Lithium ion secondary battery
A lithium ion secondary battery includes an electrode group formed by winding a positive electrode having a positive electrode current collector and a positive electrode active material layer, and a negative electrode having a negative electrode current collector and a negative electrode active material layer, with a separator interposed between the electrodes. A wound positive electrode current collector exposing section faces a wound negative electrode current collector exposing section with the separator interposed therebetween, thereby forming a heteropolar electrode current collector facing zone corresponding to at least one turn in the electrode group.
05/29/14
20140147710
Separator for a lithium ion battery as well as a lithium ion battery containing the separator
Subject-matter of the invention is a separator for a lithium ion battery which separates the positive and the negative electrode of the lithium ion battery from one another and which is permeable to lithium ions, characterized in that the separator comprises at least one silica, preferably in the form of a xerogel, and at least one carbon component, as well as a lithium ion battery containing said separator.. .
05/29/14
20140146440
Lithium ion capacitors and methods of production
A lithium-ion capacitor may include a cathode, an anode, a separator disposed between the cathode and the anode, a lithium composite material, and an electrolyte solution. The cathode and anode may be non-porous.
05/22/14
20140141337
Versatile single-layer lithium ion battery separators having nanofiber and microfiber components
An insulating (nonconductive) microporous polymeric battery separator comprised of a single layer of enmeshed microfibers and nanofibers is provided. Such a separator accords the ability to attune the porosity and pore size to any desired level through a single nonwoven fabric.
05/22/14
20140141336
Methods of making single-layer lithium ion battery separators having nanofiber and microfiber components
An insulating (nonconductive) microporous polymeric battery separator comprised of a single layer of enmeshed microfibers and nanofibers is provided. Such a separator accords the ability to attune the porosity and pore size to any desired level through a single nonwoven fabric.
05/22/14
20140141333
Process for preparing electroactive insertion compounds and electrode materials obtained therefrom
A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process..
05/22/14
20140141332
Positive electrode material for lithium ion secondary battery, positive electrode member, lithium ion secondary battery, and production method for said positive electrode material
Provided is a cathode material for a lithium ion secondary battery that includes a composite grain formed of lithium iron silicate crystals or lithium manganese silicate crystals and a carbon material. The composite grain has a sea-islands structure in which the lithium iron silicate crystals or lithium manganese silicate crystals are scattered like islands in the carbon material, and the islands have an average value of circle-equivalent diameter of smaller than 15 nm..
05/22/14
20140141329
Molybdenum oxides and uses thereof
The present disclosure describes, among other things, new layered molybdenum oxides for lithium ion battery cathodes from solid solutions of li2moo3 and licro2. These materials display high energy density, good rate capability, great safety against oxygen release at charged state due mostly to their low voltage.
05/22/14
20140141304
Lithium ion secondary battery and method of manufacturing lithium ion secondary battery
In a lithium ion secondary battery, a negative electrode sheet is made of a metal foil and an active material layer containing active material particles. The negative active material layer includes a facing portion that faces a positive active material layer and a non-facing portion that does not face the same.
05/15/14
20140134500
Anode and battery using same
An anode and a battery, which have a high capacity and can improve battery characteristics such as large current discharge characteristics and low temperature discharge characteristics are provided. An anode has an anode current collector and an anode active material layer provided on the anode current collector.
05/15/14
20140134499
Group iva functionalized particles and methods of use thereof
Disclosed are functionalized group iva particles, methods of preparing the group iva particles, and methods of using the group iva particles. The group iva particles may be passivated with at least one layer of material covering at least a portion of the particle.
05/15/14
20140134496
Single-layer lithium ion battery separators exhibiting high low shrinkage rates at high temperatures
An insulating (nonconductive) microporous polymeric battery separator comprised of a single layer of enmeshed microfibers and nanofibers is provided. Such a separator accords the ability to attune the porosity and pore size to any desired level through a single nonwoven fabric.
05/15/14
20140134491
Lithium containing composite oxide powder and manufacturing process for the same
Provided is a lithium containing composite oxide powder suitable for the positive electrode active material of the non-aqueous electrolysis solution secondary battery such as the lithium ion secondary battery, and a manufacturing process for the same. A lithium containing composite oxide powder includes a single crystal particle containing a lithium containing composite oxide that is manufactured by a molten salt method and that includes at least lithium and another one or more metal elements and in which a crystal structure belongs to a lamellar rock salt structure, wherein an average primary particle diameter is greater than or equal to 200 nm and smaller than or equal to 30 μm.
05/15/14
20140134490
Approach for manufacturing efficient mesoporous nano-composite positive electrode limn1-xfexpo4 materials
A process of preparing mesoporous nano-composite limn1-xfexpo4 (0≦x≦1, e.g., x=0, 0.2, 0.5 and 0.8) particles. The process contains the steps of providing a mixture of a soft-template compound, a lithium ion-containing compound, an iron ion-containing compound, a manganese ion-containing compound, and a phosphate ion-containing compound in a solvent, removing the solvent to obtain a limn1-xfexpo4 precursor, and calcining the precursor followed by milling and annealing.
05/15/14
20140134486
Method for manufacturing lithium ion secondary battery
The method for manufacturing a lithium ion secondary battery includes a binder coating step (18), a mixture supplying step (20), a magnetic field applying step (22), and a convection generating step (24). The binder coating step (18) is a step of coating a slurry-form binder (18a) on a metal foil (12a) (collector).


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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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