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US20090123843 SUPERCAPACITOR AND BATTERY ELECTRODE CONTAINING THERMALLY EXFOLIATED GRAPHITE OXIDE  
A supercapacitor or battery electrode containing a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g.
US20150099150 ELECTROCHEMICAL SYSTEMS AND METHODS FOR HARVESTING HEAT ENERGY  
Electrochemical systems for harvesting heat energy, and associated electrochemical cells and methods, are generally described.
US20140093781 Modified Natural Graphite Particles  
A modified natural graphite material which provides a negative plate having improved adhesion between a negative electrode mixture and a current collector has a circularity of at least 0.92 and at...
US20070015053 Lithium battery with surfactant coated electrode  
Disclosed herein is a lithium battery wherein a surfactant is combined with one or more electrodes to produce a more efficient and safer battery. This combination appears to preclude the normal...
US20140087238 BATTERY PLATE WITH MULTIPLE TABS AND MIXED PORE DIAMETERS  
A battery electrode assembly comprises a porous electrode plate having a plurality of large and small pores, a pore insert within a plurality of pores, the pore insert maintaining an electrolyte...
US20100304218 STIMULATED EMISSION RELEASE OF CHEMICAL ENERGY STORED IN STONE-WALES DEFECT PAIRS IN CARBON NANOSTRUCTURES  
Stone Wales defect pairs in a carbon nanostructure are used to store energy. Energy is released by a chain reaction of phonons disrupting the defect pairs to generate more phonons until the...
US20120045693 NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME  
A negative active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the same. The negative active material includes...
US20130071750 NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME  
A negative active material for a rechargeable lithium battery includes a core including a SiO2 matrix and a Si grain, and a coating layer continuously or discontinuously coated on the core. The...
US20090023072 Carbon-Material for Lithium Battery and Lithium Battery  
To provide a carbon material from which lithium battery whose discharge capacity is large and which is good in terms of output characteristic is obtainable. A carbon material according to the...
US20140162130 COMPOSITIONS COMPRISING FREE-STANDING TWO-DIMENSIONAL NANOCRYSTALS  
The present invention is directed to compositions comprising free standing and stacked assemblies of two dimensional crystalline solids, and methods of making the same.
US20140065487 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...
US20150210044 COMPOSITIONS COMPRISING FREE-STANDING TWO-DIMENSIONAL NANOCRYSTALS  
The present invention is directed to compositions comprising free standing and stacked assemblies of two dimensional crystalline solids, useful for physical and electrochemical applications.
US20150171414 LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME  
A method is provided for manufacturing a lithium secondary battery, wherein a negative electrode composite material layer formed on a negative electrode in this battery has a maximum point, in...
US20060093915 Carbons useful in energy storage devices  
Carbons that are economically produced from carbon precursor selected from naturally occurring carbohydrate, pitch derived from coal tar, pitch derived from petroleum and combinations thereof, are...
US20120121973 NEGATIVE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY WITH THE SAME, AND METHOD FOR MANUFACTURING THE LITHIUM SECONDARY BATTERY  
Disclosed herein is a negative active material for a lithium secondary battery. The negative active material according to an exemplary embodiment of the present invention includes nanoparticles...
US20080038626 METHOD FOR PREPARING BLACK PHOSPHORUS OR BLACK PHOSPHORUS-CARBON COMPOSITE, LITHIUM RECHARGEABLE BATTERY COMPRISING THE PREPARED BLACK PHOSPHORUS OR BLACK PHOSPHORUS-CARBON COMPOSITE AND METHOD FOR USING THE RECHARGEABLE BATTERY  
Disclosed is black phosphorus or black phosphorus-carbon composite, which is very suitable for an anode material of lithium rechargeable battery. The black phosphorus or black phosphorus-carbon...
US20150263344 BATTERY, NEGATIVE ELECTRODE ACTIVE MATERIAL, AND ELECTRIC TOOL  
A battery is provided including a positive electrode; a negative electrode including a first negative electrode active material; and an electrolytic solution, wherein the first negative electrode...
US20130323607 SECONDARY ELECTROCHEMICAL CELLS WITH SEPARATOR AND ELECTROLYTE COMBINATION  
A secondary electrochemical cell comprises an anode, a cathode including electrochemically active cathode material, a separator between the anode and the cathode, and an electrolyte. The...
US20150171423 COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY COMPRISING THE SAME, AND PREPARATION METHOD THEREOF  
A composite cathode active material including a core comprising a lithium compound, and a coating layer formed on at least one portion of the core and including at least two oxide phases having...
US20150180019 NEGATIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE SAME, NEGATIVE ELECTRODE COMPRISING THE SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME  
The present invention relates to a negative active material for a rechargeable lithium battery, a method of manufacturing the negative active material, and a rechargeable lithium battery including...
US20120009478 CRYSTALLINE CARBONACEOUS MATERIAL WITH CONTROLLED INTERLAYER SPACING AND METHOD OF PREPARING SAME  
A crystalline carbonaceous material with a controlled interlayer spacing and a method of manufacturing the same. In one embodiment, a crystalline carbonaceous material has a layered structure...
US20140178762 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...
US20120135305 Positive Active Material for Rechargeable Lithium Battery, Method of Preparing the Same, and Rechargeable Lithium Battery Including the Same  
A positive active material of a positive electrode of a rechargeable lithium battery, the positive active material includes a core and a composite surrounding a surface of the core and including a...
US20140315087 POSITIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME  
A method of preparing a positive active material for a rechargeable lithium battery includes dry-coating a surface of a material capable of doping and dedoping lithium with a carbon nanotube.
US20130130117 Modified Natural Graphite Particle and Method for Producing the Same  
Modified natural graphite particles intended for forming a negative electrode material for a nonaqueous electrolyte secondary battery are characterized by having a circularity of at least 0.93 and...
US20130052535 LITHIUM ION SECONDARY BATTERY ACTIVE MATERIAL, LITHIUM ION SECONDARY BATTERY ELECTRODE, LITHIUM ION SECONDARY BATTERY, ELECTRONIC DEVICE, ELECTRIC POWER TOOL, ELECTRIC VEHICLE, and POWER STORAGE SYSTEM  
A lithium ion secondary battery capable of improving the lithium ion input-output characteristics. An active material capable of storing and releasing lithium ions is a Li complex oxide or a Li...
US20130140488 ANODE ACTIVE MATERIAL FOR USE IN LITHIUM SECONDARY BATTERY  
An anode active material for use in a lithium secondary battery including a mixture of graphite I that has, according to X-ray powder diffraction, d002 of not smaller than 0.3354 nm and not...
US20130323600 Potato-Shaped Graphite Particles with Low impurity Rate at the Surface, Method for Preparing the Same  
Modified graphite particles are obtained from graphite or based on graphite. The particles have impurities in their internal structure and have on the surface a low, even nil, rate of an impurity...
US20130224599 NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME  
Disclosed are a method of preparing a negative active material for a rechargeable lithium battery that includes: preparing a powder including a material being capable of doping and dedoping...
US20090202917 COMPOSITE GRAPHITE PARTICLES AND LITHIUM RECHARGEABLE BATTERY USING THE SAME  
The invention provides composite graphite particles, comprising a core material consisting of graphite having a interlayer distance d(002) of 0.337 nm or less and a surface layer consisting of...
US20130330623 ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS  
(A) A cathode active material of a cathode includes a lithium phosphate compound represented by LiaM1bPO4 (M is Fe and the like, 0≦a≦2, b≦1). (B) Fine pore distribution of the cathode measured by...
US20130302682 METAL FLUORIDE AND PHOSPHATE NANOCOMPOSITES AS ELECTRODE MATERIALS  
The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery...
US20120009473 NEGATIVE ACTIVE MATERIAL FOR SECONDARY LITHIUM BATTERY AND SECONDARY LITHIUM BATTERY  
Disclosed are a negative active material for a secondary lithium battery and a secondary lithium battery including the same. The negative active material for a secondary lithium battery includes...
US20080280207 Material Based on Carbon and Silicon Nanotubes that Can be Used in Negative Electrodes for Lithium Batteries  
The invention relates to a material comprising carbon nanotubes, deposited at the surface of each of which is a substantially continuous film of nanoscale silicon particles, that can be used in...
US20130177813 NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME  
A negative active material for a rechargeable lithium battery includes a SiOx (0.5≦x≦1.5) compound including crystalline Si, and a SiCy, (0.5≦y≦1.5) compound including crystalline carbon. The...
US20130189585 NEGATIVE ACTIVE MATERIAL FOR A RECHARGEABLE LITHIUM BATTERY, A METHOD OF PREPARING THE SAME, AND A RECHARGEABLE LITHIUM BATTERY COMPRISING THE SAME  
Negative active materials for rechargeable lithium batteries, methods of manufacturing the negative active materials, and rechargeable lithium batteries including the negative active materials are...
US20110274979 NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY  
A negative active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the negative active material. The negative active...
US20150155562 NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME  
A method of preparing a negative active material for a rechargeable lithium battery including preparing a powder including a silicon-carbon composite or a Si-based material represented by SiOx...
US20140065488 METHOD OF PREPARING NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, AND NEGATIVE ACTIVE MATERIAL AND RECHARGEABLE LITHIUM BATTERY PREPARED FROM THE SAME  
Disclosed are a method of preparing a negative active material for a rechargeable lithium battery that includes preparing a solution including spherically shaped natural graphite particles and a...
US20140308544 COSOLVENT ELECTROLYTES FOR ELECTROCHEMICAL DEVICES  
A system and method for stabilizing electrodes against dissolution and/or hydrolysis including use of cosolvents in liquid electrolyte batteries for three purposes: the extension of the calendar...
US20110135990 SODIUM SECONDARY BATTERY  
Disclosed is a sodium secondary battery. The sodium secondary battery comprises a first electrode and a second electrode comprising a carbonaceous material. The carbonaceous material satisfies one...
US20110045354 ARTIFICIAL GRAPHITE PARTICLES AND METHOD FOR MANUFACTURING SAME, NONAQUEOUS ELECTROLYTE SECONDARY CELL NEGATIVE ELECTRODE AND METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY CELL  
Artificial graphite particles, having a secondary particle structure in which a plurality of primary particles composed of graphite are clustered or bonded together, and having a layer structure...
US20100330423 INTERCONNECTED HOLLOW NANOSTRUCTURES CONTAINING HIGH CAPACITY ACTIVE MATERIALS FOR USE IN RECHARGEABLE BATTERIES  
Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures...
US20130202956 Methods and Energy Storage Devices utilizing electrolytes having surface-smoothing additives  
Electrodeposition and energy storage devices utilizing an electrolyte having a surface-smoothing additive can result in self-healing, instead of self-amplification, of initial protuberant tips...
US20050203240 Carbon-carbon composition, their preparation and use therefore as negative electrode for li-ion batteries  
A composite of particles of Carbon#I-Cmlrbon#2, wherein Carbon#1 means a low cristallinity cmbon and Cro#means a high ctistallinity carbon and the use of these particles in electrochernca systems,...
US20150155550 ELECTROCHEMICAL CELLS COMPRISING POROUS STRUCTURES COMPRISING SULFUR  
The present invention relates to the use of porous structures comprising sulfur in electrochemical cells. Such materials may be useful, for example, in forming one or more electrodes in an...
US20090197182 SOLID STATE BATTERY  
A solid state battery comprising: a solid electrolyte; a positive electrode containing an active material; and a negative electrode containing an active material is provided. The solid electrolyte...
US20110318641 PLATE-LIKE PARTICLE OF CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, CATHODE OF THE LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY  
To provide a lithium secondary battery which has high capacity while maintaining excellent charge-discharge characteristic, and to provide a cathode of the lithium secondary battery and a...
US20090311604 Sulfur-Carbon Material  
An electrode material having carbon and sulfur is provided. The carbon is in the form of a porous matrix having nanoporosity and the sulfur is sorbed into the nanoporosity of the carbon matrix....
US20110097629 Negative Active Material for Rechargeable Lithium Battery and Rechargeable Lithium Battery Including Same  
A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative active material includes Si-based material core, a carbon coating...