This page is updated frequently with new Graphite-related patent applications.
|Non-aqueous electrolyte secondary battery|
The nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution and is characterized in that the nonaqueous electrolytic solution contains propylene carbonate and fluoroethylene carbonate, the positive electrode contains an oxide that contains lithium and one or more metallic elements m as a positive electrode active material, the one or more metallic elements m include at least one selected from the group consisting of cobalt and nickel, the negative electrode contains graphite as an active material, the negative electrode active material includes lithium and a lithium carbonate layer with a thickness of 1 μm or less on the surface thereof, and the ratio of the total lithium content a of the positive and negative electrodes to the metallic element m content mm of the oxide, a/mm, is greater than 1.01.. .
Sanyo Electric Co., Ltd.
|Active material, nonaqueous electrolyte battery, battery pack and vehicle|
According to one embodiment, there is provided an active material. The active material includes secondary particles.
Kabushiki Kaisha Toshiba
|Applying compliant compliant interfacial layers in thermoelectric devices|
A thermoelectric power generation technique is disclosed using one or more mechanically compliant and thermally and electrically conductive layers at the thermoelectric material interfaces to accommodate high temperature differentials and stresses induced thereby. The compliant material may be metal foam or metal graphite composite (e.g.
California Institute Of Technology
|Process for unitary graphene layer or graphene single crystal|
A unitary graphene layer or graphene single crystal containing closely packed and chemically bonded parallel graphene planes having an inter-graphene plane spacing of 0.335 to 0.40 nm and an oxygen content of 0.01% to 10% by weight, which unitary graphene layer or graphene single crystal is obtained from heat-treating a graphene oxide gel at a temperature higher than 100° c., wherein the average mis-orientation angle between two graphene planes is less than 10 degrees, more typically less than 5 degrees. The molecules in the graphene oxide gel, upon drying and heat-treating, are chemically interconnected and integrated into a unitary graphene entity containing no discrete graphite flake or graphene platelet.
Nanotek Instruments, Inc.
|Heat resistant spheroidal graphite cast iron, manufacturing the same and engine exhaust system part including the same|
Heat resistant spheroidal graphite cast iron having an improved high temperature tensile strength includes carbon (c) in a range of 3.2-3.4 wt %, silicon (si) in a range of 4.3-4.8 wt %, manganese (mn) in a range of 0.2-0.3 wt %, molybdenum (mo) in a range of 0.8-1.0 wt %, vanadium (v) in a range of 0.4-0.6 wt %, chrome (cr) in a range of 0.2-0.4 wt %, niobium (nb) in a range of 0.2-0.4 wt %, inevitable impurities, and a remainder of iron (fe) based on a total weight of the heat resistant spheroidal graphite cast iron. The heat resistant spheroidal graphite cast iron further includes barium (ba) in a range of 0.0045-0.0075 wt %.
Doosan Infracore Co., Ltd.
|System and synthesis of poss-graphene oxide derivatives as effective fillers for developing high performance composites|
According to an embodiment, a method for grafting poss (polyhedral silsesquioxane) nanomaterial to graphene oxide is described for use in preparation of high performance composite materials. In another embodiment, amine functionalized graphene oxide may be particularly suitable.
The Board Of Regents For Oklahoma State University
|Graphite film and process for producing graphite film|
A graphite film which is low in graphite dust generation can be produced by properly selecting acid dianhydride and diamine which constitute a polyimide film, which polyimide film is a raw material of the graphite film. Specifically, the graphite film which is low in graphite dust generation can be obtained if (1) the acid dianhydride is pmda and the diamine has a molar ratio of oda/pda in a range of 100:0 to 80:20, or (2) the acid dianhydride has a molar ratio of pmda/bpda in a range of 80:20 to 50:50, and the diamine has a molar ratio of oda/pda in a range of 30:70 to 90:10..
|Thermal features of a mobile device|
This application relates to thermal management of a computing device using various features that can dissipate and direct thermal energy. In some embodiments, a thermal insert is set forth for separating a component from a cover glass of the computing device.
|Graphite thermal conductor, electronic device and manufacturing graphite thermal conductor|
A graphite thermal conductor includes graphite bands laminated in the thickness direction. The thermal conductivity coefficient of each graphite band in the extending path is greater than the thermal conductivity coefficient thereof in the thickness direction.
|Brake friction material for stainless steel disc|
Disclosed is a brake friction material for stainless steel brake discs, as a non-asbestos-based organic friction material not including asbestos. The brake friction material can enhance braking characteristics and wear resistance of a stainless steel brake disc.
Saeron Automotive Co., Ltd.
Fire-resistant roof system and membrane composite
A roof assembly comprising: a roof deck; a thermoplastic membrane covering the deck; and a fabric having disposed thereon expandable graphite.. .
Firestone Building Products Co., Llc
Heating paste composition, and sheet heating element, heating roller, heating unit and heating module using same
A heating paste composition, and a sheet heating element, a heating roller, a heating unit and a heating module, which use the composition, are disclosed. In one aspect, the heating paste composition includes 0.2 parts to 6 parts by weight of carbon nanotube particles, 0.5 parts to 30 parts by weight of graphite particles, 5 parts to 30 parts by weight of a binder mixture, 29 parts to 80 parts by weight of an organic solvent and 0.5 parts to 5 parts by weight of a dispersant, wherein the weights are with respect to 100 parts by weight of the heating paste composition..
Korea Electronics Technology Institute
Nonaqueous electrolyte secondary battery and production of nonaqueous electrolyte secondary battery
Provided is a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolyte, wherein the positive electrode has a positive active material containing a lithium transition metal composite oxide having an α-nafeo2-type crystal structure and represented by the composition formula: li1+αme1−αo2 (wherein me is a transition metal element including co, ni and mn; and α>0), and the negative electrode has a negative active material which contains a carbon material that is a mixture of graphite and amorphous carbon and in which the ratio of the amorphous carbon contained in the carbon material is 5 to 60% by mass.. .
Gs Yuasa International Ltd.
Electrical power storage devices
An electrical storage device includes high surface area fibers (e.g., shaped fibers and/or microfibers) coated with carbon (graphite, expanded graphite, activated carbon, carbon black, carbon nanofibers, cnt, or graphite coated cnt), electrolyte, and/or electrode active material (e.g., lead oxide) in electrodes. The electrodes are used to form electrical storage devices such as electrochemical batteries, electrochemical double layer capacitors, and asymmetrical capacitors..
Johnson Controls Autobatterie Gmbh & Co. Kgaa
Negative electrode active material for rechargeable lithium battery, preparing the same, and negative electrode and rechargeable lithium battery including same
A negative active material for a rechargeable lithium battery includes a carbon-based active material including highly crystalline natural graphite and artificial graphite. The carbon-based active material has a peak intensity ratio (p2/p4) of about 0.3 to about 0.4, wherein p2 refers to the 101 peak of a rhombohedral crystal grain and p4 refers to the 101 peak of a hexagonal crystal grain, as measured by x-ray diffraction..
Samsung Sdi Co., Ltd.
Graphene sheet combining graphite flake structure and its manufacturing method, and slurry for manufacturing the same
A graphene sheet combining graphite flake structure includes a graphite nanoplatelet material and a graphene material. The graphene material is mixed in the graphite nanoplatelet material, and the content of the graphene material is between 1% and 80% of the graphite nanoplatelet material.
Nitronix Nanotechnology Corporation
Artificial graphite material for lithium ion secondary battery negative electrode, and producing same
The present invention relates to an artificial graphite material for a negative electrode of a lithium ion secondary battery which shows smaller deteriorations of the capacity of charging and discharging cycles and which has a reduced internal resistance and a high output characteristic. It is an artificial graphite material for a lithium ion secondary battery negative electrode, wherein the size l(112) of a crystallite in the c-axis direction is 5 to 25 nm; the ratio (id/ig) of the intensities of peaks is 0.05 to 0.2; and the relative absorption intensity ratio (i4.8 k/i280 k) is 5.0 to 12.0..
Jx Nippon Oil & Energy Corporation
Internal Combustion Engine
Fatty Acid Amide
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