Class / Patent application number | Description | Number of patent applications / Date published |
429231400 | Alkalated carbon, graphite, or carbonaceous component is active material | 52 |
20080274406 | Negative Electrode Material for Lithium Secondary Battery, Method for Producing Same, Negative Electrode for Lithium Secondary Battery Using Same and Lithium Secondary Battery - A negative-electrode material is provided that can be produced at a low cost and yields a lithium secondary battery with an excellent balance of various battery characteristics even when used in high electrode densities. | 11-06-2008 |
20080305396 | Lead-acid battery expanders with improved life at high temperatures - An expander formulation for use in a battery paste incorporates an organic component or lignosulfonate characterized by improved resistance to high temperature degradation. Battery plates made from battery pastes which incorporate this expander formulation exhibit considerable improvements in the life of the batteries, especially at high battery operating temperatures. The organic component preferably is a purified, partially desulfonated, high molecular weight sodium lignosulfonate made from softwood. | 12-11-2008 |
20090269667 | Porous Electrically Conductive Carbon Material And Uses Thereof - This disclosure relates to a porous electrically conductive carbon material having interconnected pores in first and second size ranges from 10 μm to 100 nm and from less than 100 nm to 3 nm and a graphene structure and to diverse uses of the material such as an electrode in a lithium-ion battery and a catalyst support, e.g. for the oxidation of methanol in a fuel cell. The carbon material has been heat treated to effect conversion to non-graphitic carbon with the required degree of order at a temperature in the range from 600° C. to 1000° C. A lithium-ion battery and an electrode for a lithium-ion battery are also claimed. | 10-29-2009 |
20100159329 | PLATE-LIKE PARTICLE FOR CATHODE ACTIVE MATERIAL OF A LITHIUM SECONDARY BATTERY, A CATHODE ACTIVE MATERIAL FILM OF A LITHIUM SECONDARY BATTERY, AND A LITHIUM SECONDARY BATTERY - An object of the present invention is to improve the characteristics such as cell capacity, by raising the exposure of a crystal plane (a plane other than the (003) plane: e.g., (101) plane and (104) plane), through which lithium ions are favorably intercalated and deintercalated, to an electrolyte. A plate-like particle or a film for a lithium secondary battery cathode active material has a layered rock salt structure. A plane other than the (003) plane is oriented in parallel with the plate surface (a surface orthogonal to a thickness direction) and step-like structures are two-dimensionally formed along the plate surface. | 06-24-2010 |
20100159330 | PLATE-LIKE PARTICLE FOR CATHODE ACTIVE MATERIAL OF A LITHIUM SECONDARY BATTERY, A CATHODE ACTIVE MATERIAL FILM OF A LITHIUM SECONDARY BATTERY, AND A LITHIUM SECONDARY BATTERY - An object of the present invention is to provide a lithium secondary battery which has improved capacity, durability, and the other characteristic as compared with conventional lithium secondary batteries. | 06-24-2010 |
20110200883 | DEVICES, SYSTEMS AND METHODS FOR ADVANCED RECHARGEABLE BATTERIES - Methods, systems and devices are implemented in connection with rechargeable batteries. One such device includes a cathode that has lithiated sulfur. The device also includes a porous structure having pores containing the lithium-sulfide particles introduced during a manufacturing stage thereof. | 08-18-2011 |
20120094181 | Cathode Active Material For A Lithium Rechargeable Battery And A Production Method Therefor - The present invention relates to negative-electrode active material for a lithium secondary battery exhibiting excellent capacity property and cycle life property, a method of preparing the same, and a lithium secondary battery using the negative-electrode active material, wherein the negative-electrode active material for a lithium secondary battery comprises a nanotube having a tube shape defined by an outer wall with a thickness of nanoscale, the outer wall of the nanotube comprises at least one non-carbonaceous material selected from the group consisting of silicon, germanium and antimony, and an amorphous carbon layer with a thickness of 5 nm or less is formed on the outer wall of the nanotube. | 04-19-2012 |
20140065486 | NEGATIVE-ELECTRODE MATERIAL, NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, AND ALKALI METAL ION BATTERY - A negative-electrode material is a carbonaceous negative-electrode material used in an alkali metal ion battery and an average layer spacing d | 03-06-2014 |
20140178762 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed are a negative active material for a rechargeable lithium battery including a spherically-shaped natural graphite-modified composite particle including: a spherically-shaped natural graphite particle where flake-shaped natural graphite fragments build up and assemble into a cabbage or random shape; and amorphous or semi-crystalline carbon, wherein an open gap between the flake-shaped natural graphite fragments is positioned on a surface part or inside the spherically-shaped natural graphite particle, the amorphous or semi-crystalline carbon is coated on the surface of the spherically-shaped natural graphite particle, and the amorphous or semi-crystalline carbon is present in the open gap, and thereby the open gap positioned on the surface part and inside the spherically-shaped natural graphite particle is maintained, a method of preparing the same, and a rechargeable lithium battery including the same. | 06-26-2014 |
20140342232 | STRUCTURALLY STABLE ACTIVE MATERIAL FOR BATTERY ELECTRODES - A process of producing active material for an electrode of an electrochemical cell includes providing lithium-intercalating carbon particles having an average particle size of 1 μm to 100 μm as component 1, providing silicon particles having an average particle size of 5 nm to 500 nm as component 2, providing a polymer or polymer precursor which can be pyrolyzed to form amorphous carbon and is selected from the group consisting of epoxy resin, polyurethane resin and polyester resin, as component 3, mixing components 1 to 3 in to a mixture and heat treating the mixture substatually in the absence of atmospheric oxygen at a temperature at which the pyrolyzable polymer or the pyrolyzable polymer precursor decomposes to form amorphous carbon. | 11-20-2014 |
20140342233 | SULFUR-CARBON COMPOSITE FOR LITHIUM-SULFUR BATTERY, THE METHOD FOR PREPARING SAID COMPOSITE, AND THE ELECTRODE MATERIAL AND LITHIUM-SULFUR BATTERY COMPRISING SAID COMPOSITE - The present invention relates to a sulfur-carbon composite, comprising a pyrolysis microporous carbon sphere (PMCS) substrate and sulfur loaded into said pyrolysis microporous carbon sphere (PMCS) substrate; as well as a method for preparing said sulfur-carbon composite, an electrode material and a lithium-sulfur battery comprising said sulfur-carbon composite. | 11-20-2014 |
20140342234 | SULFUR-CARBON COMPOSITE FOR LITHIUM-SULFUR BATTERY, THE METHOD FOR PREPARING SAID COMPOSITE, AND THE ELECTRODE MATERIAL AND LITHIUM-SULFUR BATTERY COMPRISING SAID COMPOSITE - The present invention relates to a sulfur-carbon composite made from microporous-carbon-coated carbon nanotube (CNT@MPC) composites, in particular a sulfur-carbon composite, which comprises a carbon-carbon composite substrate (CNT@MPC) and sulfur loaded into said carbon-carbon composite substrate (CNT@MPC); as well as a method for preparing said sulfur-carbon composite, an electrode material and a lithium-sulfur battery comprising said sulfur-carbon composite. | 11-20-2014 |
20140349189 | LITHIUM SECONDARY BATTERY - A lithium secondary battery | 11-27-2014 |
20140349190 | Silicon Oxide for Anode of Secondary Battery, Method for Preparing the Same and Anode of Secondary Battery Using the Same - Provided is a silicon oxide for an anode of a secondary battery, having a good mechanical lifespan and electrical properties, and a method for preparing the same and an anode of a secondary battery using the silicon oxide. According to the method, a mixture is prepared by mixing SiCl | 11-27-2014 |
20140356721 | Coating Particles - A method includes combining a coating material and an uncoated particulate core material in a solution having a selected ionic strength. The selected ionic strength promotes coating of the uncoated particulate core material with the coating material to form coated particles; and the coated particles can be collected after formation. The coating material has a higher electrical conductivity than the core material. | 12-04-2014 |
20140356722 | CONDUCTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE SAME - The present invention relates to a conductive material for a secondary battery, including a pitch coated graphene sheet, an anode for a secondary battery including the same, and a lithium secondary battery including the electrode. | 12-04-2014 |
20140356723 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - Provided is a negative electrode for a non-aqueous electrolyte secondary battery, capable of improving the energy density and the cycle characteristics of the battery without lowering the initial charge/discharge efficiency of the battery. This negative electrode includes a negative electrode active material including a silicon oxide represented by SiO | 12-04-2014 |
20140356724 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery comprising a positive electrode plate, a negative electrode being provided with a negative electrode plate mixture layer containing a negative electrode active material, a separator; and a non-aqueous electrolyte. The negative electrode active material is a mixture of at least one of metal silicon and silicon oxide expressed by SiOx (0.5≦x<1.6) , and graphite material. And the graphite material includes coated graphite material coated with amorphous carbon in the ratio of equal to or more than 20% by mass, and equal to or less than 90% by mass to all the graphite material, and the ratio of the metal silicon and the silicon oxide to all the negative electrode active material is equal to or more than 1% by mass and equal to or more than 20% by mass. | 12-04-2014 |
20150017539 | CARBON MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - A carbon material for lithium ion secondary batteries of the invention contains amorphous carbon and graphite. | 01-15-2015 |
20150024274 | ELECTRIC STORAGE DEVICE - An electric storage device includes a negative electrode, a positive electrode, and a separator interposed between the negative electrode and the positive electrode, the negative electrode including a negative electrode layer including an active material including an amorphous carbon particle capable of occluding and releasing at least one of an alkali metal and an alkaline earth metal, and a binder. The negative electrode layer includes a plurality of pores, and a ratio S1/S2 of a specific surface area (S1) of micropores having a pore diameter of 1 nm or more and 3 nm or less in the pores to a specific surface area (S2) of mesopores having a pore diameter of 20 nm or more and 100 nm or less therein is 0.3 or more and 0.9 or less. | 01-22-2015 |
20150030930 | Carbon Coated Anode Materials - Nano-colloids of near monodisperse, carbon-coated SnO2 nano-colloids. There are also carbon-coated SnO2 nanoparticles. There are also SnO2/carbon composite hollow spheres as well as an anode of a Li-ion battery having the nano-colloids. There is also a method for synthesizing SnO2 nano-colloids. There are also coaxial SnO2@carbon hollow nanospheres, a method for making coaxial SnO2@carbon hollow nanospheres and an anode of a Li-ion battery formed from the coaxial SnO2@carbon hollow nanospheres. | 01-29-2015 |
20150056513 | POWDER COMPRISING CARBON NANOSTRUCTURES AND ITS METHOD OF PRODUCTION - A powder comprises a plurality of carbon nanostructures, with at least a portion of the carbon nanostructures defining an internal cavity that contains metallic lithium, a lithium compound, or a lithium alloy comprising lithium. A method of forming the powder involves the electrolytic disintegration of a graphite electrode in a lithium-bearing molten salt to form the carbon nanostructures, and a step of removing salt from the nanoparticles without removing lithium. A lithium battery anode comprising an anode comprising the powder as a layer on an electrically conductive substrate. | 02-26-2015 |
20150118566 | NEGATIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY, AND SECONDARY BATTERY - The present invention relates to a negative electrode material for secondary batteries, comprising graphite; wherein
| 04-30-2015 |
20150125752 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY - Conventionally, there is a problem that a volume of a negative electrode active material changes during a charge-discharge cycle, a conductive network in a negative electrode gradually degrades, and thus a capacity of the negative electrode decreases. To solve the problem, the present invention has an object to prevent a reduction in capacity of the negative electrode, and increase life of a lithium ion secondary battery. A negative electrode active material for lithium ion secondary battery includes: a graphite core material; and a covering layer that covers a surface of the core material, wherein the covering layer has a thickness of 1 nm to 200 nm, and has a bulk modulus lower than a bulk modulus of the core material. | 05-07-2015 |
20150140434 | NEGATIVE ELECTRODE ACTIVE MATERIAL LAYER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY AND METHOD OF PREPARING AND USING THE SAME - A negative electrode active material layer composition for a rechargeable lithium battery is disclosed. The negative electrode active material layer composition includes a negative active material including Li-doped SiO | 05-21-2015 |
20150140435 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery including a negative electrode, the negative electrode including a silicon-based material and graphite; a positive electrode; and an electrolyte, wherein the negative electrode includes silicon in an amount of greater than 0 wt % and less than or equal to about 2 wt %, based on a total weight of the silicon-based material and the graphite, and the rechargeable lithium battery has a discharge cut-off voltage of greater than or equal to about 3.1 V. | 05-21-2015 |
20150147656 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING THE NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES - A negative electrode | 05-28-2015 |
20150147657 | GRAPHITE MATERIAL FOR NEGATIVE ELECTRODE OF LITHIUM-ION SECONDARY BATTERY, LITHIUM-ION SECONDARY BATTERY INCLUDING THE GRAPHITE MATERIAL, AND METHOD OF MANUFACTURING GRAPHITE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY - A graphite material for a negative electrode of a lithium-ion secondary battery is provided. A ratio Lc(112)/Lc(006) defined as a ratio of expansion of graphene sheets to sheet displacement ranges from 0.08 to 0.11, both inclusive. A crystallite size Lc(006) calculated from a wide-angle X-ray diffraction line ranges from 30 nm to 40 nm, both inclusive. An average particle size ranges from 3 μm to 20 μm, both inclusive. | 05-28-2015 |
20150295233 | METHOD FOR PRODUCING NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERIES - A negative electrode material for lithium ion batteries is obtained by a method which includes: mixing carbon particles (B) such as graphite particles, particles (A), such as Si particles, containing an element capable of occluding and releasing lithium ions, a carbon precursor such as sucrose, a carboxylic acid compound such as acetic acid, and a liquid medium such as water or isopropyl alcohol to prepare a slurry; drying and solidifying the slurry; and heat-treating the resulting solidified material to carbonize the carbon precursor. A lithium ion battery is obtained using this negative electrode material. | 10-15-2015 |
20150325839 | Negative Electrode Material for a Rechargeable Battery and Method for Producing the Same - The invention relates to An active material for a rechargeable lithium ion battery, comprising metal (M) based particles and a silicon oxide SiO | 11-12-2015 |
20150325847 | Anode Material for Secondary Battery and Method of Preparing the Same - Provided is an anode material for a secondary battery, and more particularly, to an anode material for a secondary battery using a silicon oxide (SiOx), and a method of preparing the same. There is provided an anode material for a secondary battery, formed by preparing an SiOx and a carbon material, mixing the SiOx and the carbon material, forming a SiOx-carbon (SiOx-C) composite, and performing a heat treatment. | 11-12-2015 |
20150325848 | NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, COMPOSITE NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, RESIN COMPOSITION FOR LITHIUM ION SECONDARY BATTERY NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - The present invention provides a negative electrode material for a lithium ion secondary battery, a composite negative electrode material for a lithium ion secondary battery, a resin composition for a lithium ion secondary battery negative electrode, and a negative electrode for a lithium ion secondary electrode, which may provide high charge/discharge capacity, and excellent initial charge-discharge characteristics and capacity retention. The surfaces of core particles of silicon of 5 nm or more and 100 nm or less in average particle size are coated with a coating layer to use a negative electrode material containing substantially no silicon oxide in the coating layer, or a composite negative electrode material for a lithium ion secondary battery, which includes the negative electrode material and a matrix material, further with the use of a polyimide resin or a precursor thereof as a bonding resin, thereby making it possible to achieve high charge/discharge capacity and excellent capacity retention, as well as high initial efficiency. | 11-12-2015 |
20150333320 | POSITIVE ELECTRODE ACTIVE MATERIAL/GRAPHENE COMPOSITE PARTICLES, POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION CELL, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL/GRAPHENE COMPOSITE PARTICLES - A conventional positive electrode material for lithium ion batteries that is made of positive electrode active material/graphene composite particles has low graphene material ion conductivity and is incapable of providing favorable battery performance. In the present invention, positive electrode active material/graphene composite particles are conferred with high electron conductivity and ion conductivity by formation of an appropriately functionalized graphene/positive electrode active material composite, and are capable of yielding a high-capacity/high-output lithium ion secondary battery when used as a positive electrode active material for a lithium ion battery. | 11-19-2015 |
20150340688 | METHOD FOR PREPARING SULFUR-CARBON COMPOSITE BY DUAL DRY COMPLEXATION - Disclosed are a sulfur-carbon composite and a method of preparing the sulfur-carbon composite by dual dry complexation. The sulfur-carbon composite has a structure that fibrous carbon is introduced to an interior of sulfur and carbon is coated to an exterior of the sulfur. | 11-26-2015 |
20150357632 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY - An object of the present invention is to provide a lithium secondary battery having a negative electrode having a novel structure in which the metal content is increased as compared to the past and the capacity density of the negative electrode is increased, and the lithium occlusion capacity of the metal is not decreased by repeated charge and discharge. In order to achieve this object, the negative electrode active material for a lithium secondary battery is characterized by being composed of a mixture of graphite particles capable of occluding and emitting lithium ions and particles containing metal, wherein the average particle diameter of the particles containing metal during discharge is 1/2000 to 1/10 of that of the graphite particles, the graphite particles have an average particle diameter during discharge of 2 μm to 20 μm, and addition ratio by weight of the particles containing metal is 10% to 50%. | 12-10-2015 |
20150357634 | LITHIUM-SULFUR BATTERY CATHODE MATERIAL AND METHOD FOR MAKING THE SAME - A method for making a lithium-sulfur battery cathode material includes steps of providing a carbon nanotube source; providing sulfur and a first solvent; adding the carbon nanotube source and the sulfur into the first solvent, and ultrasonically agitating the first solvent to form a first suspension. A second solvent is added during an agitation process to form a second suspension and the first solvent and the second solvent are removed from the second suspension. The present disclosure also relates to a lithium-sulfur battery cathode material obtained by the method. | 12-10-2015 |
20150364751 | GRAPHITE POWER FOR NEGATIVE ELECTRODE ACTIVE MATERIAL OF LITHIUM-ION SECONDARY BATTERY - A graphite powder, preferably including scale-like particles, which satisfies the following formulae (1) and (2), wherein e(0.5) represents the initial charge-discharge efficiency of a coin cell fabricated from an electrode (work electrode) produced by compressing an electrode material employing graphite powder as an active material under a pressure of 0.5 t/cm | 12-17-2015 |
20150364754 | Silicene nanocomposite anode for lithium ion battery - A higher capacity silicene thin film structure with alternating layers of silicon nanoparticles which will result in an anode for lithium ion batteries. This nanocomposite structure will increase the specific capacity to 3500 mAh/g-1 versus 350 mAh/g-1 for state of the art lithium batteries. Charge/discharge cycles of 5000 with a maximum of 15% loss are also achievable. This is due to the silicene nanocomposites' capability to accommodate the mechanical expansion of the lithiated silicon species. Reliability defects such as copper cracking and delamination will be minimized using a barrier/adhesion metal layer. This will also reduce copper dendrite formation. Particle cracking and lithium plating will also be reduced by using the silicon based nanocomposite. The silicene nanocomposite can be fabricated using UHV-CVD methods minimizing transition to high rate production and recurring manufacturing product costs. | 12-17-2015 |
20150372291 | CATHODE FOR LITHIUM-SULFUR BATTERY - Disclosed is a cathode for lithium-sulfur battery. The cathode for lithium-sulfur battery has a structure for improved in charge/discharge efficiency, charge capacity, and life span. In particular, in the cathode structure, an active material is inserted into a porous carbon structure and a surface of the porous carbon structure is densely coated with the conducting material thereby maximizing the contents of an active material and a conducting material in the cathode without a current collector. | 12-24-2015 |
20150380734 | ELECTRODE MATERIAL, PASTE FOR ELECTRODES, AND LITHIUM ION BATTERY - An electrode material for which an electrode active material having a carbonaceous film formed on a surface is used and which is capable of suppressing voltage drop when high-speed charge and discharge is carried out in a low-temperature environment is provided. | 12-31-2015 |
20160006020 | COMPOSITE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES AND METHOD FOR PRODUCING SAME - The purpose of the present invention is to provide: a composite active material for lithium secondary batteries, which is capable of providing a lithium secondary battery that has large charge and discharge capacity, high-speed charge and discharge characteristics and good cycle characteristics at the same time; and a method for producing the composite active material for lithium secondary batteries. The present invention is characterized in that the composite active material for lithium secondary batteries is constituted by flat particles having generally any of a rounded disk shape, a flattened ellipsoidal body shape, or a broad bean-type shape; the flat particles include at least one structure in which particles of a battery active material capable of combining with lithium ions are sandwiched between folds consisting of graphite; the battery active material capable of combining with lithium ions has an average particle diameter of 1 μm or less; some of the folds consisting of graphite are inclined from a vertical axis direction to a flat surface in a cross section vertical to the flat surface of the flat particles, the some of the folds being positioned other than at a vicinity of both ends in the longitudinal direction in the cross section; and the structure in which the particles of the battery active material capable of combining with lithium ions are sandwiched between the folds consisting of graphite has an orientation that is generally parallel with the flat surface. | 01-07-2016 |
20160006034 | ELECTRODE ACTIVE MATERIAL, ELECTRODE AND ELECTRICAL STORAGE DEVICE - The present invention relates to an electrode active material, an electrode and an electrical storage device. The electrode active material includes a carbon material and has not less than 0.020 mmol/g of basic functional groups. | 01-07-2016 |
20160013473 | METHOD OF MANUFACTURING PASTE FOR MANUFACTURING OF NEGATIVE ELECTRODE, METHOD OF MANUFACTURING NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY | 01-14-2016 |
20160043384 | Graphene foam-protected anode active materials for lithium batteries - A lithium-ion battery anode layer, comprising an anode active material embedded in pores of a solid graphene foam composed of multiple pores and pore walls, wherein (a) the pore walls contain a pristine graphene material having essentially no (less than 0.01%) non-carbon elements or a non-pristine graphene material having 0.01% to 5% by weight of non-carbon elements; (b) the anode active material is in an amount from 0.5% to 95% by weight based on the total weight of the graphene foam and the anode active material combined, and (c) some of the multiple pores are lodged with particles of the anode active material and other pores are particle-free, and the graphene foam is sufficiently elastic to accommodate volume expansion and shrinkage of the particles of the anode active material during a battery charge-discharge cycle to avoid expansion of the anode layer. Preferably, the solid graphene foam has a density from 0.01 to 1.7 g/cm | 02-11-2016 |
20160043390 | NEGATIVE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE NEGATIVE ACTIVE MATERIAL, AND METHOD OF PREPARING THE NEGATIVE ACTIVE MATERIAL - A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes: a core particle including a silicon based alloy; carbon nanoparticles disposed on a surface of the core particle; and an amorphous carbonaceous coating layer disposed on at least a portion of a surface of the core particle. The negative active material may improve the lifetime characteristics of the lithium batteries. | 02-11-2016 |
20160049643 | CATHODE MATERIAL, CATHODE INCLUDING THE SAME, AND LITHIUM BATTERY INCLUDING THE CATHODE - A cathode material includes a cathode active material; and a carbon material of secondary particles including a plurality of primary particles, where the carbon material of the secondary particles has an average chain length that is equal to or less than 50 primary particles coupled to each other. A cathode includes the cathode material and a current collector. A lithium battery includes the cathode. | 02-18-2016 |
20160126540 | LITHIUM IONIC ENERGY STORAGE ELEMENT AND METHOD FOR MAKING THE SAME - A lithium ionic energy storage element comprises a positive electrode having a first current collector and a positive electrode active substance provided on the first current collector; a negative electrode having a second current collector and a negative electrode active substance provided on the second current collector, wherein the negative electrode active substance is a material selected from the group consisting of carbon-containing materials, Si alloy and Sn alloy; and an electrolyte, wherein the positive electrode active substance comprises a lithium ion donor including lithium peroxide, lithium oxide or the mixture thereof and a positive electrode frame active substance. The invention also relates to a method for making a lithium ionic energy storage element. | 05-05-2016 |
20160172120 | ENERGY STORAGE DEVICE BASED ON NANOCRYSTALS INCLUDING METAL OXIDERESCALED BY LITHIATION AND SUPERCAPACITOR USING THE SAME | 06-16-2016 |
20160181596 | ROBUST MoS2/GRAPHENE COMPOSITE ELECTRODES FOR NA+ BATTERY APPLICATIONS | 06-23-2016 |
20170237070 | PRODUCTION METHOD FOR CARBONACEOUS MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY ANODE, AND CARBONACEOUS MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY ANODE | 08-17-2017 |
20170237071 | CARBONACEOUS MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY ANODE | 08-17-2017 |
20190148728 | NEGATIVE ELECTRODE ACTIVE MATERIAL, MIXED NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL | 05-16-2019 |