Patent application number | Description | Published |
20090094822 | METHOD FOR MANUFACTURING SECONDARY BATTERY AND METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY - A method for producing a secondary cell according to the present invention includes step (A) of putting a solution having an electrochemically reversibly oxidizable/reducible organic compound and a supporting electrolyte dissolved therein into contact with a positive electrode active material, thereby oxidizing or reducing the positive electrode active material; and step (B) of accommodating the oxidized positive electrode active material and a negative electrode active material in a case in the state of facing each other with a separator being placed therebetween, and filling the case with an electrolyte solution. By oxidizing or reducing the positive electrode active material, lithium ions or anions as the support electrode are incorporated into the positive electrode active material. | 04-16-2009 |
20090111030 | POWER STORAGE DEVICE - A power storage device of the present invention includes a positive electrode, a negative electrode, and an electrolyte. At least one of the positive electrode and the negative electrode includes an organic compound as an active material having a portion contributing to an oxidation-reduction reaction. The organic compound is crystalline in both a charged state and a discharged state. | 04-30-2009 |
20090246631 | ELECTRICITY STORAGE DEVICE - Disclosed is an electricity storage device which can be charged/discharged at high rate and have high output, high capacity and excellent repeating charge/discharge characteristics, although it uses a non-carbon material as a negative electrode active material. Specifically disclosed is an electricity storage device comprising: a positive electrode collector; a positive electrode disposed on the positive electrode collector and including a positive electrode active material which can reversibly absorb/desorb at least anions; a negative electrode collector; and a negative electrode disposed on the negative electrode collector and including a negative electrode active material which can substantially absorb/desorb lithium ions reversibly. The negative electrode active material is composed of at least one substance selected from the group consisting of silicon, a silicon-containing alloy, a silicon compound, tin, a tin-containing alloy, and a tin compound; and the negative electrode is formed as a thin film having a thickness of 10 μm or less. | 10-01-2009 |
20100047688 | PHENANTHRENEQUINONE COMPOUND, ELECTRODE ACTIVE MATERIAL, AND POWER STORAGE DEVICE - Disclosed is a novel organic compound synthesized by oligomerizing or polymerizing a specific quinone compound having two quinone groups at the ortho position and having a property such that the electron transfer occurs associated with a reversible redox reaction, the organic compound being insoluble in an organic solvent and having a high energy density, and thus being useful as an electrode active material for a power storage device. Using this organic compound as an electrode active material can improve the energy density, reduce the weight and size, and improve the functionality of the power storage device. | 02-25-2010 |
20100196758 | ELECTRODE ACTIVE MATERIAL FOR POWER STORAGE DEVICE, POWER STORAGE DEVICE, AND ELCTRONIC AND TRANSPORT DEVICES - An electrode active material for a power storage device of the invention includes a ketone compound that includes a ring structure in a molecule, the ring structure being a five-membered or seven-membered ring composed of atoms at least three adjacent ones of which are each bonded to a ketone group. The electrode active material for a power storage device of the invention has a high weight-energy density and good reversibility of oxidation-reduction reaction. The use of the electrode active material for a power storage device of the invention can provide a power storage device having a high capacity, a high voltage, and good charge/discharge cycle characteristics. | 08-05-2010 |
20110003201 | ELECTRICITY STORAGE MATERIAL AND ELECTRICITY STORAGE DEVICE - An electricity storage material according to the present invention contains a copolymer compound of first units and second units, each first unit having a side chain which is an oxidation-reduction site having a it conjugate electron cloud and being of a structure represented by general formula (1) below, and each second unit having no oxidation-reduction reaction site as a side chain. In general formula (1), X | 01-06-2011 |
20110086267 | POLYMER, SEMICONDUCTOR FILM, ELECTRODE, ELECTRODE ACTIVE MATERIAL, ELECTROCHEMICAL ELEMENT AND ELECTRICITY STORAGE DEVICE - A polymer having a structure represented by the following general formula (1), wherein in general formula (1), Ph is a phenyl group; X is an oxygen atom, a sulfur atom, a selenium atom or a tellurium atom; and R1 and R1 each independently contains at least one selected from the group consisting of a chained saturated hydrocarbon group, a chained unsaturated hydrocarbon group, a cyclic saturated hydrocarbon group, a cyclic unsaturated hydrocarbon group, a phenyl group, a hydrogen atom, a hydroxyl group, a cyano group, an amino group, a nitro group and a nitroso group. The chained saturated hydrocarbon group, the chained unsaturated hydrocarbon group, the cyclic saturated hydrocarbon group and the cyclic unsaturated hydrocarbon group each contain at least one selected from the group consisting of a carbon atom, an oxygen atom, a nitrogen atom, a sulfur atom and a silicon atom. | 04-14-2011 |
20110091767 | ACCUMULATOR MATERIAL AND ACCUMULATOR DEVICE - An electricity storage device including a positive electrode | 04-21-2011 |
20110143197 | ELECTRODE ACTIVE MATERIAL FOR POWER STORAGE DEVICE AND POWER STORAGE DEVICE, AND ELECTRONIC EQUIPMENT AND TRANSPORTATION EQUIPMENT - An electrode active material for a power storage device of the invention includes an organic compound having, in the molecule, a plurality of electrode reaction sites and a linker site. The electrode reaction sites are residues of a 9,10-phenanthrenequinone compound that contributes to an electrochemical redox reaction. The linker site is disposed between the plurality of electrode reaction sites, does not contain any ketone group, and does not contribute to the electrochemical redox reaction. The electrode active material for a power storage device of the present invention is inhibited from being dissolved in an electrolyte and has a high energy density. By using the electrode active material, it is possible to obtain a power storage device having a high energy density and excellent charge/discharge cycle characteristics. | 06-16-2011 |
20120156572 | ELECTRODE ACTIVE MATERIAL FOR POWER STORAGE DEVICE, POWER STORAGE DEVICE, AND ELECTRONIC AND TRANSPORTATION DEVICE - Disclosed are an electrode active material for a power storage device and a power storage device including the same. The electrode active material includes a polymer that includes: a tetravalent group derived from a compound selected from the group consisting of EBDT and derivatives thereof, TTF and derivatives thereof, a condensation product of EBDT and TTF and derivatives thereof, and a TTF dimer and derivatives thereof; and a divalent group —S-A-S— where A is a divalent aliphatic group or a divalent group represented by the formula -E-D-E- where D represents a divalent alicyclic group, a divalent aromatic group, or a carbonyl group, and two Es each independently represent a divalent aliphatic group. Adjacent two tetravalent groups mentioned above are linked by one or two divalent groups mentioned above. | 06-21-2012 |
20120328944 | ELECTRODE AND ELECTRICITY STORAGE DEVICE - An electrode of the present invention includes: an electrically conductive support ( | 12-27-2012 |