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Date/App# patent app List of recent Lithium Ion-related patents
04/17/14
20140106236
 Novel polymer electrolyte and lithium secondary battery including the same patent thumbnailnew patent Novel polymer electrolyte and lithium secondary battery including the same
Disclosed is a polymer electrolyte having a multilayer structure including a first polymer layer providing mechanical strength against external force and a second polymer layer to secure a conduction path for lithium ions, wherein the first polymer layer includes an organic electrolyte containing an ionic salt in an amount of 0 wt % to 60 wt % based on a weight of a polymer matrix of the first polymer layer and the second polymer layer includes an organic electrolyte containing an ionic salt in an amount of 60 wt % to 400 wt % based on a weight of a polymer matrix of the second polymer layer, and a lithium secondary battery including the same.. .
04/17/14
20140106226
 Lithium ion secondary cell patent thumbnailnew patent Lithium ion secondary cell
The negative-electrode active material for a lithium ion secondary cell of the invention includes a mixed material of silicon oxide particles composed of silicon oxide and rod-shaped iron oxide particles composed of iron oxide. It is preferable to use iron oxide particles having a plurality of pores in a surface, and an electrode reaction is effectively carried out..
04/17/14
20140106215
 High energy density secondary lithium batteries patent thumbnailnew patent High energy density secondary lithium batteries
A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of li1+x(my mzii mwiii)o2 where x+y+z=1, and xli2mno3(1−x)limo2, where x=0.2-0.7, and where m, mii and miii are interchangeably manganese, nickel and cobalt, and lim2−xmxiio4 , where m and mii are manganese and nickel, respectively, with x=0.5.
04/17/14
20140106186
 Lipon coatings for high voltage and high temperature li-ion battery cathodes patent thumbnailnew patent Lipon coatings for high voltage and high temperature li-ion battery cathodes
A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound.
04/17/14
20140103263
 Cathode material patent thumbnailnew patent Cathode material
Provided is a cathode material capable of obtaining high energy density and superior instantaneous output characteristics in a lithium ion secondary battery. The cathode material is used in a lithium ion secondary battery (1), and includes fef3 and liv3o8 as a cathode active material.
04/17/14
20140102946
 Lithium extraction composition and method of preparation thereof patent thumbnailnew patent Lithium extraction composition and method of preparation thereof
This invention relates to a particulate extraction material for the extraction of lithium from a geothermal brine or lithium containing solution. The particulate material includes an inorganic or polymer based substrate that includes a lithium aluminum intercalate layer applied to the exterior of the substrate, wherein the lithium aluminum intercalate layer is operable to capture lithium ions from solution..
04/10/14
20140099558
 Power storage device patent thumbnailPower storage device
A power storage device with reduced initial irreversible capacity is provided. The power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte solution.
04/10/14
20140099553
 Mesoporous carbon structures, preparation method thereof and lithium secondary battery including the same patent thumbnailMesoporous carbon structures, preparation method thereof and lithium secondary battery including the same
Provided are mesoporous carbon structures and a method for preparing the same. The mesoporous carbon structures have a high surface area, a large pore volume and a large pore size in addition to a small mesopore length.
04/10/14
20140099546
 Electrode active material having core-shell structure patent thumbnailElectrode active material having core-shell structure
Disclosed is an electrode active material having a core-shell structure, which includes: (a) a core capable of intercalating and deintercalating lithium ions; and (b) a shell including a polymer or an oligomer having a glass transition temperature of 25° c. Or less when impregnated with an electrolyte, wherein a surface of the core is coated with the shell.
04/10/14
20140099542
 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 contains a silicone-acrylic graft copolymer cured substance including an acrylic type main chain having a functional group and a side chain having a silicone graft-polymerized to the acrylic type main chain, and the coated layer is chemically bonded with the binder.. .
04/10/14
20140099251
Method for preparing of spinel lithium titanium oxide nanofiber for negative electrode of lithium secondary battery
Disclosed is a method of preparing spinel lithium titanium oxide nanofibers for a negative electrode of a lithium secondary battery, including (s1) mixing an organic material selected from the group consisting of polyvinylpyrrolidone, polymethylmethacrylate, polyethylene, polyethylene oxide and polyvinyl alcohol, a lithium precursor, and a titanium precursor with a solvent, thus preparing a mixture solution, (s2) electrospinning the mixture solution, thus preparing composite nanofibers, and (s3) heat-treating the composite nanofibers, thus removing the organic material. In the spinel lithium titanium oxide nanofibers for a negative electrode of a lithium secondary battery prepared using the method according to the present invention, the spinel lithium titanium oxide nanofibers can provide a large surface area per unit volume, thus increasing the contact area between the electrolyte and the conductor and decreasing the lithium ion diffusion distance, thereby greatly contributing to improving electronic conductivity and ionic conductivity..
04/03/14
20140093769
Carbon nanotube-based electrode and rechargeable battery
Carbon nanotube-based electrode materials for rechargeable batteries have a vastly increased power density and charging rate compared to conventional lithium ion batteries. The electrodes are based on a carbon nanotube scaffold that is coated with a thin layer of electrochemically active material in the form of nanoparticles.
04/03/14
20140093759
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 activates in response to the rise of the battery's internal pressure, wherein the electrolytic solution is incorporated with an aromatic compound and the separator 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.
03/27/14
20140088207
Polymerized ionic liquid block copolymers as battery membranes
The present invention is directed to compositions useful for use in separators for use in lithium ion batteries, and membranes, separators, and devices derived therefrom.. .
03/27/14
20140087267
Graphite negative material for lithium-ion battery, method for preparing the same and lithium-ion battery
A graphite negative material for a lithium-ion battery includes a number of graphite layers parallel to each other. A number of channels are through the graphite layers.
03/27/14
20140087266
Cathode composite material and lithium ion battery using the same
A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a lithium cobalt oxide.
03/27/14
20140087265
Cathode active material for a lithium ion secondary battery and a lithium ion secondary battery
A cathode active material for a lithium secondary battery, includes secondary particles, each being formed of a large number of primary particles whose mean particle size is equal to or larger than 0.01 μm and equal to or smaller than 5 μm, and includes the following features. An oriented ratio of a (003) plane is equal to or larger than 60%.
03/27/14
20140087264
Cathode composite material and lithium ion battery using the same
A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a spinel type lithium manganese oxide.
03/27/14
20140087261
Cathode composite material and lithium ion battery using the same
A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium nickel cobalt manganese oxide.
03/27/14
20140087260
Positive electrode for lithium ion secondary battery, lithium ion secondary battery, and battery system
Provided is a positive electrode for a lithium ion secondary battery including, as a positive active material, a positive active material (a) that is lifepo4 having an olivine structure and a positive active material (b) expressed by a general formula: yli2mno3.(1−y)limo2 (y satisfies 0.3≦y≦0.7, and m represents at least two kinds of elements selected from the group consisting of co, mn, ni, fe, and ti so that a total valence becomes three, the positive active material (a) having a mass ratio of 80 to 90% by mass with respect to the total mass of the positive active material (a) and the positive active material (b); a lithium ion secondary battery including the positive electrode; and a battery system including the lithium ion secondary battery and a charge and discharge control portion for controlling the charge and discharge of the lithium ion secondary battery with a voltage.. .
03/27/14
20140087259
Cathode composite material and lithium ion battery using the same
A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a spinel type lithium nickel manganese oxide.
03/27/14
20140087257
Cathode material and lithium ion battery therefrom
A new high performing lithium ion cell having new carbon based anode and new dual doped layered cathode materials. The anode is a self standing carbon fibrous material and the cathode is a dual doped lithium cobalt oxide of general formula limxnyco1-x-yo2 (0.01≦x, y≦0.2) wherein m is a divalent alkaline earth metal cation and n is a divalent transition metal cation.
03/27/14
20140087256
Cathode composite material, method for making the same, and lithium ion battery using the same
A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. A material of the coating layer is a lithium metal oxide having a crystal structure belonging to c2/c space group of the monoclinic crystal system.
03/27/14
20140087254
Cathode composite material and lithium ion battery using the same
A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium transition metal oxide.
03/27/14
20140087252
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 coat containing modified polydimethylsiloxane formed on a surface of at least a part of the active material layer, wherein the coat is chemically bonded with the binder.. .
03/27/14
20140087249
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 lithium ion battery comprising: a negative electrode which comprises a negative electrode active material containing at least one of a graphite and an amorphous carbon, conductive additives containing a graphite, and a binder; a nonaqueous electrolyte solution; and a positive electrode containing a positive electrode active material capable of occluding and releasing lithium.
03/27/14
20140087225
High-capacity cylindrical lithium ion battery and production method thereof
The invention discloses a high-capacity cylindrical lithium ion battery. Tab-position end face is shaped; a high frequency oscillation and pressure are applied on to make the foil bodies softened in the scope of 0.1-6.5 mm.
03/27/14
20140087218
Valve regulated lead-acid battery
A valve regulated lead-acid battery includes a positive electrode plate, a retainer mat and a negative electrode plate housed in a container and holding an electrolyte solution respectively. The electrolyte solution contains colloidal silica and lithium ions..
03/27/14
20140087071
Ion-exchange manganese oxide lithium adsorbent using porous structure and method for preparing the same
The present invention relates to an ion-exchange manganese oxide lithium adsorbent using a porous structure and a method for preparing the same. The lithium adsorbent according to the present invention is highly dispersed on the surface of the porous structure, and thus it has excellent adsorption performance and physical stability and is easy to handle.
03/27/14
20140087065
Cathode composite material, method for making the same, and lithium ion battery using the same
A method for making a cathode composite material of a lithium ion battery is disclosed. In the method, a composite precursor is formed.
03/27/14
20140086814
Production of li2msio4 electrode materials in amine solvent
A process for the production of li2msio4, wherein m is mn, fe, or co, is disclosed. The process uses an atmospheric-pressure solvo-thermal synthesis in a high boiling-point amine solvent selected to be stable with respect to decomposition over the solvothermal process conditions.
03/27/14
20140084692
Power supply method, power supply device, and base station
A method includes receiving currents supplied by a power generation apparatus, distributing the currents supplied by the power generation apparatus to a load and a lithium ion battery to ensure normal running of the load and enable the lithium ion battery to be charged. After the lithium ion battery is fully charge, the currents supplied by the power generation apparatus are distributed to the lead acid battery so that the lead acid battery is charged..
03/27/14
20140084503
Flame spray pyrolysis method for forming nanoscale lithium metal phosphate powders
A flame spray pyrolysis method for making nanoscale, lithium ion-conductive ceramic powders comprises providing a precursor solution comprising chemical precursors dissolved in an organic solvent, and spraying the precursor solution into an oxidizing flame to form a nanoscale, lithium ion-conductive ceramic powder, wherein a concentration of the chemical precursors in the solvent ranges from 1 to 20 m. The precursor solution can comprise 1-20% excess lithium with respect to a stoichiometric composition of the ceramic powder.
03/20/14
20140080008
Electrolyte for a battery
Use of an electrolyte for an electrochemical cell and a method for manufacturing an electrochemical cell comprising such an electrolyte. The electrolyte comprises at least one conductive salt comprising lithium ions, at least one solvent and at least one wetting agent.
03/20/14
20140080006
All-solid lithium ion secondary battery
To provide an all-solid lithium ion secondary battery having a high voltage, a small internal resistance, and a discharge capacity close to a theoretical capacity and being able to be produced at low cost, and therefore, even in the case of collective sintering, generation of an inactive material due to interface reaction at the interface between an electrode active material and a solid electrolyte is reduced. An all-solid lithium ion secondary battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, wherein an electrode active material included in the positive electrode layer is a phosphate having an olivine structure; and a solid electrolyte crystal included in the solid electrolyte layer includes polyphosphoric acid and the content of li2o is 16 mol % to 25 mol % in terms of mol % on an oxide basis..
03/20/14
20140079999
Cathode material
The present invention provides a cathode material that can achieve a high energy density and excellent instantaneous output characteristics in lithium ion secondary batteries. The cathode material is used in a lithium ion secondary battery 1, and contains fef3 and carbon-coated lifepo4 as cathode active materials..
03/20/14
20140079987
Nonaqueous electrolyte solution and lithium ion battery
A nonaqueous electrolyte and a lithium ion battery with reduced temporal variations in battery characteristics from initial values are provided. A mixed solution is prepared by dissolving a lithium salt such as lipf6 in a nonaqueous solvent such as ethylene carbonate.
03/20/14
20140079964
Pressure equalization element, housing comprising a pressure equalization element, lithium ion accumulator and motor vehicle
A pressure equalization element for a housing includes a water-impermeable membrane. The membrane is combined with either a pressure relief valve acting in two directions or with a corresponding combination of two pressure relief valves such that a volume of air exchange is reduced.
03/20/14
20140079872
Method for manufacturing lithium ion secondary battery
A method for manufacturing a lithium ion secondary battery having electrodes in which a mix layer including a first binder and one of a positive electrode active material and a negative electrode active material is formed via a second binder on a collector. The method includes: performing pattern coating of the second binder on the surface of the collector and regularly forming binder-coated sections and uncoated sections; and feeding a powder of mix particles on the binder-coated sections and the uncoated sections so as to form the mix layer on the collector..
03/20/14
20140077818
Methods for testing lithium ion battery and evaluating safety of lithium ion battery
A method for testing a lithium ion battery is disclosed. An under-test lithium ion battery including a cathode active material is provided.
03/20/14
20140077754
System and method for scheduling lithium ion battery charging
A battery charging system and method for schedule based charging to pre-charge a battery to an interim voltage level for a first duration of time and applies a finishing to a maximum voltage level at a second time shortly preceding use of the battery. The finishing charge may be initiated based on a schedule or may by a manual actuator..
03/20/14
20140077127
Lithium manganese compounds and methods of making the same
Electrode materials such as lixmno2 where 0.2<x≦2 compounds for use with rechargeable lithium ion batteries can be formed by mixing limn2o4 compounds or manganese dioxide compounds with lithium metal or stabilized and non-stabilized lithium metal powders.. .
03/20/14
20140076734
Method and electrochemical device for low environmental impact lithium recovery from aqueous solutions
An efficient and low environmental impact method is disclosed for the recovery of lithium from aqueous solution, for example, brines from high altitude salt lakes. The method comprises the use of an electrochemical reactor with electrodes which are highly selective for lithium, where lithium ions are inserted in the crystal structure of manganese oxide in the cathode, and extracted from the crystal structure of manganese oxide in the anode.
03/20/14
20140075745
High capacity alkali/oxidant battery
An alkali/oxidant battery is provided with an associated method of creating battery capacity. The battery is made from an anode including a reduced first alkali metal such as lithium (li), sodium (na), and potassium (k), when the battery is charged.
03/13/14
20140072881
Lithium battery
A lithium battery including a negative electrode including a lithium metal or a lithium alloy; a positive electrode; and a polymer gel electrolyte contacting the negative electrode, wherein the polymer gel electrolyte has an ionic conductivity of about 10−3 s/cm or greater, a lithium ion transference number of about 0.15 or greater, and a lithium ion mobility of about 10−6 cm2/v×sec or greater, wherein the polymer gel electrolyte includes a lithium salt, a polymer capable of forming a complex with the lithium salt, an insulating inorganic filler, and an organic solvent, wherein the organic solvent is inert with respect to the lithium metal, wherein an anionic radius of the lithium salt is about 2.5 angstroms or greater, and wherein a molecular weight of the lithium salt is about 145 or greater.. .
03/13/14
20140072870
All-solid-state cell
An all-solid-state cell has a positive electrode layer containing a positive electrode active material, a solid electrolyte layer containing a lithium ion conducting material, and a negative electrode layer containing a negative electrode active material. The negative electrode active material in the negative electrode layer contains a plurality of cylindrical carbon nanotube molecules, and the axes of the carbon nanotube molecules are oriented in a predetermined direction..
03/13/14
20140072864
Packaging material for lithium ion battery, lithium ion battery, and method for manufacturing lithium ion battery
A packaging material for a lithium ion battery includes: a base material layer that is formed from a film obtained by biaxially stretching a multi-layered coextruded film including a first thermoplastic resin layer having rigidity and chemical resistance and being disposed at an outer side thereof, a second thermoplastic resin layer having a capability of propagating stress and adhesiveness, and a third thermoplastic resin layer having toughness; a metal foil layer that is laminated on one surface of the base material layer; an anti-corrosion-treated layer that is laminated on the metal foil layer; an inner adhesive layer that is laminated on the anti-corrosion-treated layer; and a sealant layer that is laminated on the inner adhesive layer.. .
03/13/14
20140072862
Method of producing lithium ion secondary battery, and lithium ion secondary battery
A method of producing a lithium ion secondary battery includes: selecting a positive electrode active material that has a prescribed specific surface area, and preparing a nonaqueous electrolyte solution that contains a compound with a following formula (1) at a prescribed concentration. In an xy-coordinate plane that gives a relationship between a specific surface area x [m2/g] of the positive electrode active material and a concentration y [mol/kg] of the compound in the nonaqueous electrolyte solution, a combination of the prescribed specific surface area and the prescribed concentration corresponds to a combination of values that lies within a hexagonal inner region formed by connecting 6 points (x, y)=(0.80, 0.035), (2.20, 0.05), (2.60, 0.10), (2.60, 0.16), (0.80, 0.16), and (0.50, 0.10) in this sequence with straight lines..
03/13/14
20140070136
Heat transfer fluids and corrosion inhibitor formulations for use thereof
Disclosed herein is a heat transfer fluid concentrate comprising: greater than or equal to 85 weight percent of a freezing point depressant, based on the total weight of the heat transfer fluid concentrate; 50 to 2000 ppm of lithium ions; an azole compound; an inorganic phosphate; a carboxylic acid; and an acrylate based polymer, wherein the heat transfer fluid has a ph of 7.0-9.5. The heat transfer fluid concentrate can be used to make a heat transfer fluid..
03/13/14
20140069234
Valuable metal recovery method
Provided is a method for improving the recovery rate of valuable metals such as cobalt when drying the battery waste of lithium ion batteries and the like. A second alloy excellent in terms of iron-cobalt separation performance and containing a small amount of iron is obtained by performing: a pre-oxidation step (st20) for roasting and pre-oxidizing battery waste containing aluminium and iron; a melting step (st21) for obtaining a molten product by melting the battery waste after the pre-oxidation step; a first slag separation step (st22) for separating and recovering first slag containing aluminium oxide from the molten product; a second oxidation step (st23) for oxidizing a molten first alloy after the first slag separation step; and a second slag separation step (st24) for separating and recovering a second slag containing iron from a second alloy after the second oxidation step (st23)..
03/06/14
20140065489
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..
03/06/14
20140065487
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.
03/06/14
20140065485
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.
03/06/14
20140065464
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.
02/27/14
20140057168
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.
02/27/14
20140057162
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. %.
02/27/14
20140057156
Polymer-ionophore separator
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..
02/27/14
20140056797
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..
02/27/14
20140055144
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.. .
02/27/14
20140054496
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.
02/27/14
20140054278
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.
02/20/14
20140050972
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.
02/20/14
20140050891
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.. .
02/13/14
20140045082
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.
02/13/14
20140045065
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.
02/13/14
20140045059
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.
02/13/14
20140045054
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..
02/13/14
20140045053
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.. .
02/13/14
20140045033
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.. .
02/13/14
20140045000
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..
02/13/14
20140043727
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.


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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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