Abstract: A method for producing a vitreous carbon material which can serve as a carbon material for a power storage device. In the method, a polymer material, having six-membered ring structures in its basic carbon skeleton and having a nitrogen atom, is heated at a temperature of 1000° C. to 2100° C. under an inert gas environment, and then, the polymer material is pulverized, to thereby control graphitization and crystal growth of the carbon material, thus producing a vitreous carbon material which serves as a carbon material for a power storage device.
Abstract: Disclosed is a facile and cost effective method of producing nano silicon powder or graphene-doped silicon nano powder having a particle size smaller than 100 nm. The method comprises: (a) preparing a silicon precursor/graphene nano composite; (b) mixing the silicon precursor/graphene nano composite with a desired quantity of magnesium; (c) converting the silicon precursor to form a mixture of graphene-doped silicon and a reaction by-product through a thermal and/or chemical reduction reaction; and (d) removing the reaction by-product from the mixture to obtain graphene-doped silicon nano powder.
Abstract: Methods of forming transition metal dichalcogenide aerogels are provided. Some methods include adding at least one solvent to one or more two-dimensional transition metal dichalcogenide sheets to form a transition metal dichalcogenide solution and freeze drying the transition metal dichalcogenide solution to form frozen transition metal dichalcogenide. The methods also include heating the frozen transition metal dichalcogenide to form a transition metal dichalcogenide aerogel.
Abstract: A cathode unit for a battery, in which the cathode includes a viscoelastic, and a polymeric gel former selected from the group of natural polysaccharides having a proportion of carboxylate or carboxylic acid groups of greater than or equal to 0.5 and less than or equal to 2.0 in relation to the number of monomer units. Also described is a method for manufacturing the cathode units and the use of a battery including the cathode unit according to the invention for power supply.
Abstract: Provided are a mixed cathode active material having improved power characteristics and safety, and a lithium secondary battery including the same. More particularly, the present invention relates to a mixed cathode active material which may assist power in a low SOC range to widen an available state of charge (SOC) range and may simultaneously provide improved safety by blending substituted LFP, in which operating voltage is adjusted by substituting a portion of iron (Fe) with other elements such as titanium (Ti), in order to prevent a rapid increase in resistance of manganese (Mn)-rich having high capacity but low operating voltage in a low SOC range (e.g., a SOC range of 10% to 40%), and a lithium secondary battery including the mixed cathode active material.
Type:
Grant
Filed:
June 18, 2014
Date of Patent:
June 27, 2017
Assignee:
LG Chem, Ltd.
Inventors:
Song Taek Oh, Sang Uck Lee, Su Rim Lee, Geun Chang Chung, Jae Kook Kim, Jin Sub Lim
Abstract: Briefly described, embodiments of the present disclosure relate to structures including single-walled carbon nanotube/quantum dot networks, devices including the structures, and methods of making devices including the single-walled carbon nanotube/quantum dot networks.
Type:
Grant
Filed:
December 5, 2013
Date of Patent:
June 27, 2017
Assignee:
UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.
Inventors:
Marcus D. Lay, Pornnipa Vichchulada, Darya Asheghali
Abstract: The present invention relates to the field of organic electronics, such as OLEDs, OPVs and organic photo detectors. It particularly provides intermediates and materials suitable for manufacturing such organic electronics, to specific manufacturing methods and to specific uses.
Type:
Grant
Filed:
February 15, 2013
Date of Patent:
June 20, 2017
Assignee:
Avantama AG
Inventors:
Norman Albert Lüchinger, Samuel Claude Halim
Abstract: A conductive composition according to the present invention contains a conductive polymer (A) having a sulfonic acid group and/or a carboxyl group; and an alkali metal hydroxide and/or an alkaline earth metal hydroxide (B). In such a conductive composition, the amount of the hydroxide (B) is set at 0.2˜0.65 mol per 1 mol of a repeating unit that contains a sulfonic acid group and/or a carboxyl group in the conductive polymer (A).
Abstract: The present invention relates to a stabilized monomer dispersion containing inorganic oxide nanoparticles with high refractive index in which the refractive index of the inorganic oxide nanoparticles is greater than 1.65 and the average particle size of the high refractive inorganic oxide nanoparticles ranges from 1 to 100 nm and its content is in a range of from 1.0% by weight to 10.0% by weight based on the total weight of the monomer dispersion. The present invention also relates to a process for preparing the stabilized monomer dispersion containing high refractive inorganic oxide nanoparticles.
Abstract: A compound useful for the manufacture of a Group 5 metal oxide film is provided. The compound is a Group 5 metal oxo-alkoxo complex represented by the following formula (A), and after preparing a film-forming material solution containing the compound and an organic solvent, a Group 5 metal oxide film can be manufactured using the film-forming material solution: M?(?4-O)?(?3-O)?(?-O)?(?-ORA)?(ORA)?(RAOH)?X?Y???(A) (wherein M represents a niobium atom, etc.; RA represents an alkyl group; X represents an alkylenedioxy group; Y represents a carboxy group, etc.; ? represents an integer of 3 to 10; ? represents 0 or 1; ? represents an integer of 0 to 8; ? represents an integer of 2 to 9; ? represents an integer of 0 to 6; ? represents an integer of 6 to 16; ? represents an integer of 0 to 4; ? represents an integer of 0 to 2; and ? represents an integer of 0 to 6).
Type:
Grant
Filed:
December 27, 2013
Date of Patent:
May 30, 2017
Assignees:
TOSOH CORPORATION, Sagami Chemical Research Institute
Abstract: This present invention relates to a method of synthesizing copper selenide powder by using a hot-injection method wherein a proper amount of a reducing agent is added to a mixed solution made of copper cationic solution and selenium anionic solution, and the mixed solution is maintained at a temperature of 230° C. for 40 minutes to obtain Copper Selenide powder. The Copper selenide powder, which is in the form of CuSe or Cu2-xSe, can be synthesized by adjusting the amount of the reducing agent being added to the mixed solution.
Abstract: The present invention provides a resin composition for an electrically conductive resin film which is excellent in electric conductivity, tensile elongation, durability to bending and flexibility and is suitable as electrodes or protective coatings on the electrodes in redox flow batteries. A resin composition includes (A) 100 parts by mass of a thermoplastic resin, (B) 1 to 60 parts by mass of carbon nanotubes and (C) 1 to 100 parts by mass of at least one selected from the group consisting of acetylene black and graphite.
Abstract: There is provided a liquid composition that can form a resistor exhibiting a stable resistance value. One mode of the liquid composition of the invention is a liquid composition comprising (a) an epoxy resin, (b) carbon black particles, (c) carbon nanotubes and (d) a solvent with a vapor pressure of less than 1.34×103 Pa at 25° C.
Abstract: A resin composition which has high electrical conductivity and high stiffness, is suppressed in outgassing caused by a temperature rise and is excellent in heat stability during melt molding in the production process and a molded article thereof. The resin composition comprises (A) 65 to 85 parts by weight of an aromatic polycarbonate resin (component A), (B) 15 to 35 parts by weight of graphite having an average particle diameter of 5 to 60 ?m (component B), and (C) 0.1 to 5 parts by weight of at least one compound (component C) selected from the group consisting of a polyester having a sulfonate group (component C-1) and a polyether ester having a sulfonate group (component C-2) based on 100 parts by weight of the total of the components A and B.
Abstract: The present invention relates to a method for recycling LiFePO4, which is an olivine-based cathode material for a lithium secondary battery. The present invention is characterized in that a cathode material including LiFePO4 is synthesized using, as precursors, amorphous FePO4.XH2O and crystalline FePO4.2H2O (metastrengite) obtained by chemically treating LiFePO4 as an olivine-based cathode material for a lithium secondary battery, which is produced from a waste battery. Since a cathode fabricated from the LiFePO4 cathode material synthesized according to the present invention does not deteriorate the capacity, output characteristics, cycle efficiency and performance of the secondary battery and the cathode material of the lithium secondary battery may be recycled, the secondary battery is economically efficient.
Type:
Grant
Filed:
July 17, 2013
Date of Patent:
May 9, 2017
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Hyung Sun Kim, Byung Won Cho, Hwa Young Lee, Eun Jung Shin, Soo Kim, Kyung Yoon Chung
Abstract: A process for the production of a composition comprising one or more conductive nano-filler(s), one or more polyarylethersulphone thermoplastic polymer(s) (A), one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor, wherein said process comprises mixing or dispersing a first composition comprising one or more conductive nano-filler(s) and one or more polyarylethersulphone thermoplastic polymer(s) (A) with or into one or more uncured thermoset resin precursor(s) (P), and optionally one or more curing agent(s) therefor.
Type:
Grant
Filed:
December 19, 2012
Date of Patent:
May 2, 2017
Assignee:
CYTEC TECHNOLOGY CORP.
Inventors:
Carmelo Luca Restuccia, Fiorenzo Lenzi, Emiliano Frulloni, Natalie Denise Jordan, Mark Edward Harriman
Abstract: A conductive circuit containing a polymer composite, which contains at least one polymer and a modified graphite oxide material, containing thermally exfoliated graphite oxide having a surface area of from about 300 m2/g to 2600 m2/g, and a method of making the same.
Abstract: Ink is manufactured by mixing unoxidized metallic particles to a binder. The ink is printed on an object and hardened for forming a conductor. The process is performed in an inert atmosphere or in vacuum for maintaining the electrical conductivity of the conductor.
Type:
Grant
Filed:
May 2, 2014
Date of Patent:
April 25, 2017
Assignee:
TEKNOLOGIAN TUTKIMUSKESKUS VTT
Inventors:
Tiina Maaninen, Arto Maaninen, Markus Tuomikoski