|| List of recent Lithium Ion-related patents
| Electrolyte-negative electrode structure, and lithium ion secondary battery comprising the same|
There are provided a constitution which can suppress a decrease in the cycle performance in repetition of charging and discharging, and a lithium ion secondary battery comprising the constitution. An electrolyte-negative electrode structure (7) comprises: a negative electrode (4) in which a negative electrode active material layer (3) comprising a material capable of intercalating lithium ions is formed on a current collector (2); and a solid electrolyte (6) comprising an inorganic particle having lithium ion conductivity, a polymer gel to be impregnated with an electrolyte solution, and an organic polymer acting as a binder for the inorganic particle and being capable of being impregnated with the polymer gel, wherein the negative electrode active material layer (3) and the solid electrolyte (6) are unified through the organic polymer as a medium..
| Forming gas treatment of lithium ion battery anode graphite powders|
The invention provides a method of making a battery anode in which a quantity of graphite powder is provided. The temperature of the graphite powder is raised from a starting temperature to a first temperature between 1000 and 2000° c.
| Negative electrode material for lithium ion batteries|
A complex alloy of at least three phases comprising a composite alloy composed of an si single phase and an si—al-m alloy phase, and an l phase offers a negative electrode material. M is an element selected from transition metals and metals of groups 4 and 5, and l is in, sn, sb, pb or mg.
| Battery designs with high capacity anode materials and cathode materials|
Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities.
|Group iva functionalized particles and methods of use thereof|
Disclosed herein 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.
|Glass ceramic that conducts lithium ions, and use of said glass ceramic|
A glass ceramic is provided that has at least one crystal phase that conducts lithium ions and a total content of ta2o5 of at least 0.5 wt. %.
An alkali-chalcogen cell, in particular a lithium-sulfur cell. In order to increase the long-term stability and lifespan of the alkali-chalcogen cell, the separator of the alkali-chalcogen cell is provided with a polymer-ionophore component, in particular a polymer-ionophore diaphragm, including a polymeric matrix material and alkali-ionophores, in particular lithium ionophores..
|Method of producing cathode active material for lithium secondary battery|
The invention provides a method of producing a cathode active material for a lithium secondary battery, whereby it is possible to configure a lithium secondary battery in which the discharge capacity is improved and elution of lithium ions from the lithium metal phosphate is suppressed when washing the lithium metal phosphate after the same was synthesized. The method of producing a cathode active material for a lithium secondary battery includes synthesizing a lithium metal phosphate represented by a composition formula limpo4, wherein the element m represents one or two or more of transition metals selected from among fe, mn, co and ni, and after the synthesis, washing the lithium metal phosphate with a washing liquid containing lithium ion..
|Determination system and determination method for determining whether metal lithium is preciptated in a lithium ion secondary battery, and vehicle equipped with the determination system|
A determination system for determining whether metal lithium is precipitated in a lithium ion secondary battery includes: a discharging unit that causes the lithium ion secondary battery to perform constant current discharge until a voltage of the lithium ion secondary battery becomes a voltage corresponding to a predetermined low state of charge; a natural increase acquisition unit that acquires a natural increase in voltage of the lithium ion secondary battery after the constant current discharge is terminated; and a precipitation determining unit the compares the acquired natural increase with a predetermined threshold, that determines that the metal lithium is not precipitated when the natural increase is larger than or equal to the threshold, and that determines that the metal lithium is precipitated when the natural increase is smaller than the threshold.. .
|Slurry obtained using binder for battery electrodes, electrode obtained using the slurry, and lithium ion secondary battery obtained using the electrode|
Provided is a slurry for lithium ion secondary battery electrodes, which has proper binding properties between active materials and between an active material and a current collector, an electrode using the slurry, and a lithium ion secondary battery using the electrode and having both a high initial discharge capacity and an excellent charge-discharge high-temperature cycle characteristic. The present invention relates to a slurry for lithium ion secondary battery electrodes, which is obtained using a binder for battery electrodes and an active material and has a ph of 3.0 to 6.0.
|Battery pack assembly with integrated heater|
A battery pack assembly for providing electric power to a load includes a battery pack, preferably made up of a plurality of lithium ion cells. A heating device formed of a flexible material flexes and covers at least part of the battery pack.
|Lithium ion batteries with high energy density, excellent cycling capability and low internal impedance|
Batteries with particularly high energy capacity and low internal impedance have been described herein. The batteries can exhibit extraordinary long cycling with acceptable low amounts of fade.
|Raw coke materials of carbon material for negative electrode of lithium ion secondary battery, and production method therefor|
The raw coke materials of a carbon material for a negative electrode of a lithium ion secondary battery is a striped agglomerate obtained by a delayed coking method under a condition that the ratio of the generation rate (mass %) of a generated gas, which includes a hydrogen gas generated by subjecting a heavy oil to coking and c1-c4 gases and the formation rate (mass %) of the raw coke materials (generation rate/formation rate) is from 0.3 to 0.8, and wherein, when an average length of the base of the stripes is defined as w, an average height is defined as h, and an average length in the vertical direction is defined as l, h/w is from 0.15 to 0.40 and l/w is 5.0 or more.. .
|Lithium ion oxygen battery|
A lithium ion oxygen battery capable of achieving a high energy density without being decreased in performance due to moisture or carbon dioxide in the atmosphere is provided. A lithium ion oxygen battery 1 comprises a positive electrode 2 containing oxygen as an active material and a lithium source, a negative electrode 3 made of a material capable of occluding or releasing lithium ions, and an electrolyte layer 4 sandwiched between the positive electrode 2 and the negative electrode 3 and capable of conducting the lithium ions.
|Li-ion battery electrodes having nanoparticles in a conductive polymer matrix|
Aspects of the present disclosure are directed towards energy storage devices, and methods of manufacturing such devices. Energy storage devices, consistent with the present disclosure, include a source of lithium ions, a plurality of nanoparticles, and a conductive polymer network.
|Cathode electrode and lithium ion battery|
A cathode electrode of a lithium ion battery includes a cathode current collector and a cathode material layer. The cathode material layer is located on a surface of the cathode current collector.
|Battery electrode and lithium ion secondary battery provided with same|
There are provided a battery electrode wherein an active material layer is formed on a collector surface, and the layer contains an active material and a block copolymer having a vinyl alcohol polymer block; and a lithium ion secondary battery having a laminate structure in which a pair of electrodes having an active material layer are disposed in such a manner that the active material layers face each other via a separator, and an electrolyte composition containing a lithium-containing electrolyte salt fills the gaps between the pair of electrodes and the separator, wherein at least one of the pair of electrodes is the above battery electrode. Thus, there can be provided a lithium ion secondary battery which can be easily produced and be less polarized, exhibiting excellent charge/discharge properties and cycle characteristics..
|Dispersant, dispersion, method for adjusting viscosity of dispersant, mobile device, surface treatment agent, electrolytic solution, separator, and rechargeable lithium ion battery|
A dispersant of the present invention is used after being added to a dispersant obtained by dispersing fine particles of a crystalline polymer as a dispersed particle and is characterized by containing a copolymer of a first monomer and a second monomer, the first monomer being a monomer that can be crystallized as a polymer having the molecular structure identical to that of the dispersed particle.. .
|Separator membranes for lithium ion batteries and related methods|
A battery separator for a secondary lithium battery includes a microporous/porous membrane with a ceramic coating of one or more layers, a layer may include one or more particles and/or binders.. .
|Cylindrical lithium ion secondary battery|
The present disclosure relates to a cylindrical lithium ion secondary battery, which can prevent a cylindrical can from being cracked due to an external shock applied during an assembling process while controlling a rupture pressure of the cylindrical can. The cylindrical lithium ion secondary battery includes a cylindrical can, an electrode assembly accommodated in the cylindrical can with an electrolyte, and a cap assembly sealing the cylindrical can, wherein the cylindrical can has a cylindrical bottom portion and a side portion extending from the bottom portion to the cap assembly, and a safety vent having a thickness gradient is formed on the bottom portion..
|Polyimide capacitance battery and manufacturing method thereof|
The present invention specifically relates to a polyimide capacitance battery and a manufacturing method thereof. The polyimide capacitance battery of the present invention is obtained by manufacturing a positive electrode and a negative electrode, and then combining the positive and negative electrodes into the capacitance battery, which consists of the positive electrode, the negative electrode, a polymer membrane therebetween, and an electrolyte, wherein the positive electrode material is a mixture of a lithium-ion insertion compound and a porous carbon material, the negative electrode material is a mixture of modified graphite and a porous activated carbon material, the polymer membrane is a polyimide membrane, and the electrolyte is an electrolyte containing a lithium ion compound and an organic solvent.
|Electrode materials for rechargeable battery|
A positive electrode is disclosed for a non-aqueous electrolyte lithium rechargeable cell or battery. The electrode comprises a lithium containing material of the formula naylixnizmn1-z-z′mz′od, wherein m is a metal cation, x+y>1, 0<z<0.5, 0≦z′<0.5, y+x+1 is less than d, and the value of d depends on the proportions and average oxidation states of the metallic elements, li, na, mn, ni, and m, if present, such that the combined positive charge of the metallic elements is balanced by the number of oxygen anions, d.
|Electrode having 3-dimensional pore network structure, lithium battery including electrode, and method of manufacturing electrode|
An electrode having a three-dimensional pore network structure including a fibrous pore channel is disclosed. A lithium battery including the electrode and a method of manufacturing the electrode are also disclosed.
|High capacity monolithic composite si/carbon fiber electrode architectures synthesized from low cost materials and process technologies|
A composite si-carbon fiber comprising a carbon matrix material with 1-90 wt % silicon embedded therein. The composite carbon fibers are incorporated into electrodes for batteries.
|Electrode active material and secondary battery|
In a secondary battery utilizing redox by a radical site, charge-discharge is carried out in such a manner that a lithium ion moves between a positive electrode and a negative electrode (rocking chair-type). An anion in an amount necessary for electrode doping during charge-discharge is made unnecessary, thereby reducing the amount of an electrolytic solution.
|Composite separator for use in a lithium ion battery electrochemical cell|
A composite separator and a method of making a composite separator are disclosed. The composite separator includes one or more electrospun polymer fibers and ceramic particles.
|Method for producing lithium sulfide for lithium ion cell solid electrolyte material|
Provided is a method for producing lithium sulfide based on a new dry method, by which lithium sulfide can be produced more easily at lower cost, and fine pulverization of lithium sulfide can be attempted. Suggested is a method for producing lithium sulfide (li2s) for a solid electrolyte material for lithium ion batteries that is used as a solid electrolyte material for lithium ion batteries, the method including bringing lithium carbonate powder into contact with a gas containing sulfur (s) in a dry state, simultaneously heating the lithium carbonate, and thereby obtaining lithium sulfide powder..
|Composition for extinguishing and/or retarding fires containing fluorine and/or phosphorus|
A fire-extinguishing and/or fire-retarding composition is based on swellable polymers. In the event of fires of lithium ion batteries, smoke gases containing fluorine and/or phosphorus are bound using alkaline earth metal ions, more particularly calcium ions..
|Organozinc complexes and processes for making and using the same|
Processes for making an organozinc reagents are disclosed comprising reacting (a) organomagnesium or organozinc complexes with (b) at least one coordination compound comprising one or more carboxylate groups and/or alcoholate groups and/or tertiary amine groups, optionally in combination with zinc ions and/or lithium ions and/or halide ions, wherein the halide ions are selected from chloride, bromide and iodide, the organozinc complex comprises an aryl group, a heteroaryl group or a benzyl group when the coordinating compound is a chelating polyamine, and the reaction is conducted in the presence of zinc complexed with at least one coordinating compound when reactant (a) comprises at least one organomagnesium complex. The resulting organozinc reagents may optionally be isolated from solvents to obtain a solid reagent.
|Carbon material for negative electrode of lithium ion secondary battery and production method therefor|
The carbon material for a negative electrode of a lithium ion secondary battery includes: particles having a structure including a plurality of stacked plates which are prepared from a raw coke materials obtained by a delayed coking method, where the ratio of the total of the generation rate of a hydrogen gas, a hydrocarbon gas having one carbon atom, and a hydrocarbon gas having two carbon atoms and the formation rate of a raw coke materials satisfies the condition: total of generation rate/formation rate=0.30 to 0.60, and where the structure is curved into a bow shape, and where, in each of the plates, an average plate thickness is defined as t, an average bow height including the plate thickness is defined as h, and an average length in the vertical direction is defined as l, l/t is 5.0 or more and h/t is from 1.10 to 1.25.. .
|Conductive polymer/porous carbon material composite and electrode material using same|
The purpose of the present invention is to provide: an electric double-layer capacitor, a lithium ion secondary battery, and a lithium ion capacitor, each of which has excellent cycle characteristics; an electrode material which is capable of providing the electric double-layer capacitor, the lithium ion secondary battery, and the lithium ion capacitor; and a composite which is used in the electrode material. The composite of the present invention is a composite produced by compositing from 0.5 to 5 parts by mass of nitrogen atom-containing conductive polymer per 100 parts by mass of porous carbon material.
|Lithium ion fluoride electrochemical cell|
Electrochemical cells of the present invention are versatile and include primary and secondary cells useful for a range of important applications including use in portable electronic devices. Electrochemical cells of the present invention also exhibit enhanced safety and stability relative to conventional state of the art primary lithium batteries and lithium ion secondary batteries.
|Method for recovering capacity of lithium ion battery|
A method for recovering the capacity of a lithium ion battery determines whether or not the cause of degradation is a decrease in lithium ions; calculates the amount of the decrease in lithium ions; and connects a lithium ion replenishing electrode to a positive electrode or a negative electrode to release lithium ions corresponding to the amount of the decrease from the lithium ion replenishing electrode, thereby replenishing the lithium ion battery with lithium ions for recovery of the battery capacity.. .
|Electrolytes including an organosilicon solvent and propylene carbonate for lithium ion batteries|
An electrolyte includes an organosilicon solvent, propylene carbonate, and a salt.. .
|Non-aqueous electrolyte secondary battery, and process for producing same|
Provided are a non-aqueous electrolyte secondary battery having excellent high-temperature durability and capable of reducing the initial percent defective and a process for producing the same. The non-aqueous electrolyte secondary battery includes: a positive electrode containing a positive-electrode active material; negative electrode containing a negative-electrode active material; a non-aqueous electrolyte; and a porous layer provided on a surface of the positive electrode, wherein the porous layer contains inorganic solid electrolyte particles having a crystalline structure of rhombohedral crystal (r3c) with lithium ion conductivity represented by li1+x+yalxti2-xsiyp3-yo12 (where 0≦x≦1 and 0≦y≦1) and an aqueous binder..
|Physically cross-linked gel electrolyte|
An electrochemical battery cell of a lithium ion battery has a physically cross-linked gel electrolyte situated between a negative electrode and a positive electrode. The gel electrolyte includes a block co-polymer host and a liquid electrolyte, which can transport lithium ions, absorbed into the block co-polymer host.
|Battery cell module, method for producing a battery cell module, battery and motor vehicle|
The disclosure relates to a battery cell module including a plurality of lithium ion battery cells, each having a degassing opening, and a cover substantially sealingly connected to a corresponding surface of each of the battery cells. The cover defines a gas receiving space configured to at least temporarily receive gas escaping from the battery cells.
|Lithium rechargable cell with reference electrode for state of health monitoring|
A battery management system includes one or more lithium ion cells in electrical connection, each said cell comprising: first and second working electrodes and one or more reference electrodes, each reference electrode electronically isolated from the working electrodes and having a separate tab or current collector exiting the cell and providing an additional terminal for electrical measurement; and a battery management system comprising a battery state-of-charge monitor, said monitor being operable for receiving information relating to the potential difference of the working electrodes and the potential of one or more of the working electrodes versus the reference electrode.. .
|Silicon-carbon composite for negative electrode of lithium secondary battery|
Disclosed is a silicon-carbon composite for a negative active material of a lithium secondary battery, including carbon nanofibers and silicon particles, wherein the silicon particles are coated with amorphous silica. In the silicon-carbon composite of the invention, silicon is provided in the form of a composite with carbon fibers and the surface of silicon particles is coated with amorphous silica, thereby reducing volume expansion upon lithium ion insertion and exhibiting superior ionic conductivity and electrical conductivity to thus maintain high capacity, and also, amorphous silica-coated silicon is positioned inside the carbon fibers having a one-dimensional structure, thus ensuring a large specific surface area and a stable composite structure..
|Lithium ion conductor, and solid electrolyte, active material, and lithium battery each including the lithium ion conductor|
Wherein, in formula 1, m includes at least one of titanium (ti), germanium (ge), zirconium (zr), hafnium (hf), and tin (sn), 0<x<0.6, and 0<y<0.2.. .
|Secondary battery and electrolyte liquid|
The object is to provide a lithium ion secondary battery which has an excellent cycle property even in high-temperature environment and which has small volume increase. An exemplary embodiment of the invention is a lithium ion secondary battery, comprising: a positive electrode, a negative electrode comprising a negative electrode active material, and an electrolyte liquid; wherein the electrolyte liquid comprises a chain-type fluorinated ester compound represented by a predetermined formula and a chain-type fluorinated ether compound represented by a predetermined formula; wherein the negative electrode active material comprises metal (a) that can be alloyed with lithium, metal oxide (b) that can absorb and desorb lithium ion, and carbon material (c) that can absorb and desorb lithium ion; and wherein metal (a) is silicon, and metal oxide (b) is silicon oxide..
|Negative electrode active material, method for producing the negative electrode active material, and lithium ion secondary battery using the negative electrode active material|
Disclosed is a negative electrode active material which is capable of occluding and releasing lithium, and has high reversible capacity and reduced initial irreversible capacity. This negative electrode active material includes a granulated substance, in which a composite containing nanosize conductive carbon powder and tin oxide powder contacting the surface of the conductive carbon powder in a highly dispersed state and an aggregate selected from the group consisting of graphite and nongraphitizable carbon are aggregated.
|Lithium ion secondary battery active material, lithium ion secondary battery electrode, lithium ion secondary battery, electronic device, electronic power tool, electric vehicle, and power storage system|
A lithium ion secondary battery includes: a positive electrode; a negative electrode; and an electrolytic solution, at least one of the positive electrode and the negative electrode being capable of storing and releasing lithium ions, and containing an active material that satisfies predetermined conditions.. .
|Lithium ion battery electrode|
A current collector includes a support and at least one graphene layer located on the support. The support includes two surfaces.
|Lithium ion battery|
A lithium ion battery includes at least one battery cell. The battery cell includes a cathode electrode, an anode electrode, and a separator.
|Lithium ion secondary battery and nonaqueous electrolyte for lithium ion secondary battery|
Wherein rf1 is the same as above, and the nonaqueous solvents comprising the compounds (i) and (ii) in a total amount of 5000 ppm or less for the fluorine-containing ether.. .
|Thin film lithium ion battery|
A thin film lithium ion battery includes a cathode electrode, an anode electrode, and a solid electrolyte layer. The solid electrolyte layer is sandwiched between the cathode electrode and the anode electrode.
|Lithium ion battery|
A lithium ion battery includes at least one battery cell. The battery cell includes a cathode electrode, an anode electrode, and a separator.
|Additive for electrolytes in rechargeable lithium ion batteries|
The invention relates to a method for reducing the loss of electrical capacitance of a rechargeable lithium ion battery when charging and discharging, comprising: (i) introducing an esterified aliphatic dicarboxylic acid into the electrolyte contained in the battery, said electrolyte comprising an organic solvent and a conducting salt.. .
|Container for heat treatment of lithium-containing compound|
A container for heat treatment of a positive-electrode active material of a lithium ion battery to hold raw material powder of the positive-electrode active material of the lithium ion battery when the raw material powder is subjected to heat treatment is provided. The heat treatment container contains 60 to 95 mass % of alumina and 10 to 20 mass % of silica, is free from mgo, zro2 and li compounds, and has a porosity of 10 to 20%.
|Battery management system for a distributed energy storage system, and applications thereof|
The present invention provides a distributed energy storage system, and applications thereof. In an embodiment, the distributed energy storage system includes power units, wherein each power unit has a multi-cell battery; a battery manager that monitors battery cell voltages and temperatures; and a controller.
|Lithium ion rechargeable battery and process for producing the lithium ion rechargeable battery|
Conventional ion rechargeable batteries having an electrode layer on an electrolyte layer suffer from an impurity layer formed at the interface, degrading performance. Conventional batteries with no such impurity layer have a problem of weak interface bonding.
|Pole sheet laser cutting machine|
Disclosed is a pole sheet laser cutting machine. It comprises a base frame component, a laser cutting device, a cutting manipulator component for driving the laser cutting device, a control system, and at least one sheet feeding assembly; the sheet feeding assembly comprises a material grabbing manipulator component, a fixed length feeding component and a material releasing component, with both the cutting manipulator component and the material grabbing manipulator component being mounted on the base frame component, the fixed length feeding component being arranged between the material grabbing manipulator component and the material releasing component, and the control system being connected to the cutting manipulator component, the material grabbing manipulator component and the fixed length feeding component.
A power tool includes a small-size lithium ion secondary battery used as its driving source, and at least one lithium ion secondary battery having a diameter of 14 mm is disposed inside a grip portion of a main body of the power tool. The lithium ion secondary battery has a sufficient output characteristic required for driving the power tool.
|Method for making lithium ion battery electrode|
A method for making a lithium ion battery electrode is provided. A support having a support surface is provided.
|Method for making thin film lithium ion battery|
A method for making a thin film lithium ion battery is provided. A cathode material layer and an anode material layer are provided.
|Method for making lithium ion battery|
A method for making lithium ion battery is provided. A cathode material layer and an anode material layer are provided.
|Method for making lithium ion battery|
A method for making lithium ion battery is provided. A cathode material layer and an anode material layer are provided.
|Metal bis(malonato) borate monomers, polymers and copolymers derived therefrom, methods of making the monomers and polymers, and articles derived therefrom|
Disclosed herein are novel metal bis(malonato)borate monomers and polymers formed by polymerizing the monomers. The monomers and the polymers have conductive properties, making them particularly useful in applications requiring materials with conductive properties.
|Electrolyte solvent for cathode active material composed of lithium oxo acid salt, electrolyte solution for cathode active material composed of lithium oxo acid salt, and lithium ion secondary battery|
An electrolyte solvent for a cathode active material composed of lithium oxo acid salt. The solvent is used for a lithium ion secondary battery using the lithium oxo acid salt as a cathode material.
|Molecular precursors for lithium-iron-containing cathode materials|
Lithium-iron molecular precursor compounds, compositions and processes for making a cathode for lithium ion batteries. The molecular precursor compounds are soluble and provide processes to make stoichiometric cathode materials with solution-based processes.
|Manganese and lithium-containing molecular precursors for battery cathode materials|
Lithium-manganese-containing molecular precursor compounds, compositions and processes for making cathodes for lithium ion batteries. The molecular precursor compounds are soluble and provide processes to make cathode materials with controlled stoichiometry in a solution-based processes.
|Cobalt and lithium-containing molecular precursors for battery cathode materials|
Lithium-cobalt-containing molecular precursor compounds, compositions and processes for making cathodes for lithium ion batteries. The molecular precursor compounds are soluble and provide processes to make stoichiometric cathode materials with solution-based processes.
|Lithium battery binder composition, method for preparing the same and lithium battery including the same|
A lithium battery binder composition in accordance with some example embodiments of the inventive concept may include a lithium ion polymer, an inorganic particle and an organic solution in which a lithium salt is dissolved. The lithium ion polymer may be a cellulosic polymer having sulfonic acid lithium salt or carboxylic acid lithium salt functional group.
|Cap assembly for lithium ion secondary battery|
A cap assembly (100, 200) for a lithium ion secondary battery (1000, 2000). The cap assembly includes a cap plate (30, 97), a leakproof film (20, 98), and a cap cover (10, 99).
|Nickel and lithium-containing molecular precursors for battery cathode materials|
Lithium-nickel-containing molecular precursor compounds, compositions and processes for making cathodes for lithium ion batteries. The molecular precursor compounds are soluble and provide processes to make cathode materials with controlled stoichiometry in solution-based processes.
|Negative electrode terminal and cover member for lithium ion battery, and lithium ion battery|
The present invention relates to a lithium ion battery employed by connecting the positive electrode side to a negative electrode portion made of cu or a cu alloy by a bus bar made of al or an al alloy and provides a negative electrode terminal for a lithium ion battery capable of providing sufficient bonding strength between the negative electrode portion and the bus bar when the negative electrode portion and the bus bar are metallurgically bonded to each other by resistance welding or the like, for example. This negative electrode terminal for a lithium ion battery is made of a clad material having a first metal layer made of al or an al alloy and a second metal layer made of cu or a cu alloy bonded to each other through a reaction-suppressing layer suppressing a reaction therebetween..
|Processes and compositions for multi-transition metal-containing cathode materials using molecular precursors|
Processes and compositions for multi-transition metal-containing cathode materials for lithium ion batteries. Processes encompass providing a composition which can be a mixture of molecular precursor compounds having the formulas [lim(x+)(or)1+x] and [li2m(x+)(or)2+x].
|Methode for making electrode active material of lithium ion battery|
A method for making an electrode active material of a lithium ion battery is disclosed. In the method, elemental sulfur is mixed with a polyacrylonitrile to form a mixture.
|Aqueous metal surface treatment agent for lithium ion secondary battery|
Having a degree of saponification of 90 to 99.9 mol % and an average degree of polymerization of 250 to 3000; and a metallic crosslinking agent.. .
|Positive electrode active material for lithium ion battery, method of producing the same, electrode for lithium ion battery, and lithium ion battery|
Provided is a positive electrode active material for lithium ion batteries, which may be in the form of fine particles with good crystallinity and high purity by suppressing grain growth, and which is capable of improving the charge and discharge capacity and high-rate characteristics, a production method thereof, an electrode for lithium ion batteries, and a lithium ion battery. The positive electrode active material for lithium ion batteries of the invention is a positive electrode active material for lithium ion batteries which are formed from limpo4 (provided that, m represents one or more kinds selected from a group consisting of mn, co, and ni).
|Slurry composition for negative electrode of lithium ion secondary cell, negative electrode of lithium ion secondary cell, and lithium ion secondary cell|
To provide a slurry composition for a negative electrode of a lithium ion secondary cell, whereby a secondary cell having excellent cycle characteristics and output characteristics can be obtained, and whereby an electrode having excellent adhesion can be obtained. [solution] this slurry composition for a negative electrode of a lithium ion secondary cell comprises a negative electrode active material, an aqueous dispersion binder, and water, and is characterized in that the specific surface area of the negative electrode active material is 3.0-20.0 m2/g, the aqueous dispersion binder is a polymer that contains dicarboxylic acid-containing monomer units and sulfonic acid-containing monomer units, the content ratio of dicarboxylic acid-containing monomer units in the polymer is 2-10% by mass, the content ratio of sulfonic acid-containing monomer units is 0.1-1.5% by mass, and the potassium ion content in the slurry composition is no more than 1000 ppm with respect to 100% by mass of the slurry composition..
|Active material, method for manufacturing active material, electrode, and lithium ion secondary battery|
An active material capable of improving the discharge capacity of a lithium ion secondary battery is provided. The active material of the present invention includes livopo4 and one or more metal elements selected from the group consisting of al, nb, ag, mg, mn, fe, zr, na, k, b, cr, co, ni, cu, zn, si, be, ti, and mo..
|Active material, method for manufacturing active material, electrode, lithium ion secondary battery, and method for manufacturing lithium ion secondary battery|
A method for manufacturing an active material, capable of improving the discharge capacity of a lithium ion secondary battery is provided. The method for manufacturing an active material according to the present invention includes a first step of heating a mixture solution including a lithium source, a phosphate source, a vanadium source, and water under pressure to generate a precursor in the mixture solution, and adjusting the ph of the mixture solution including the precursor to be 6 to 8; and a second step of heating the precursor at 425 to 650° c.
|Method of synthesis of high dispersed spherical y or nb doped lithium titanate oxide using titanium tetrachloride and lithium hydroxide|
The present disclosure relates to a method of synthesis of lithium titanate oxide used for a cathode of lithium ion battery, the method comprising: (a) diluting ticl4 with tiocl2; (b) adding ycl3 or nbcl5 at the rate of 0.1˜2 mol % to ti(mol); (c) forming a complex salt by dissolving to put at least one selected from a group consisting of hydroxy propyl cellulose or polyethylene glycol in a solvent, the hydroxy propyl cellulose being a complexing agent and being a dispersing agent as well, whereas the polyethylene glycol being a dispersing agent; (d) synthesizing a titanium precursor by adding an aqueous ammonia solution; (e) preparing y or nb doped titanium dioxide(tio2) powder by heat-treating the synthetic product in a temperature of 500˜700° c.; and (f) mixing the y or nb doped tio2 powder with lioh.h2o and heat-treating the mixture in a temperature of 800˜900° c.. .
|Treatment of anodized aluminum components|
The present disclosure relates to a method of incorporating lithium into a coating. One may supply a substrate having a coating containing aluminum ions and immersing the substrate including the coating containing aluminum ions in a water-soluble diketone including lithium for exchange where the ketone carbonyls are separated by at least one carbon atom.