Abstract:
A power storage device electrode is provided, which includes a layer made of a composite material containing an organic sulfide compound (A) as an electrode active material and a sulfide-containing organic polymer (B) as a binder, and a current collector stacked on the layer. The power storage device electrode is used as a positive electrode of a power storage device. Therefore, the power storage device is less liable to suffer from reduction in capacity during repeated charge/discharge, and has a higher capacity density and a higher energy density.
Abstract:
For achievement of a novel electricity storage device excellent in charge and discharge velocity and in capacity density, and an electrode and a porous sheet for use in the same, an electricity storage device including an electrolyte layer, a positive electrode, and a negative electrode is provided, wherein the electrolyte layer is interposed between the electrodes, and wherein at least one of the electrodes is a porous film made from a solution having an electrically conductive polymer in a reduced state.
Abstract:
Provided are a polymer electrolyte membrane exhibiting a relatively high ion conductivity, and a method for producing the polymer electrolyte membrane.The polymer electrolyte membrane of the present invention is an ion-conducting polymer electrolyte membrane including a polymer. The polymer includes a hydrophobic main chain and side chains bonded to the main chain. Each of the side chains includes a hydrophobic main chain portion and a plurality of side chain portions bonded to the main chain portion. Each of the side chain portions includes a hydrophobic first portion bonded to the main chain portion, and a second portion bonded to the first portion. The second portion includes an ion-conducting group.
Abstract:
The invention provides a cathode sheet for use in a nonaqueous electrolyte secondary battery, including a composite material comprising a collector and a layer of a cathode active material provided thereon. The layer of a cathode active material includes: (a) a conductive polymer and (b) at least one selected from a polycarboxylic acid and a metal salt of a polycarboxylic acid; and the conductive polymer is a polymer in a dedoped state or in a dedoped and reduced state. The polymer constituting the conductive polymer is at least one selected from polyaniline, a polyaniline derivative, polypyrrole, a polypyrrole derivative, and polythiophene; and the polycarboxylic acid is at least one selected from polyacrylic acid, polymethacrylic acid, polyvinylbenzoic acid, polyallylbenzoic acid, polymethallylbenzoic acid, polymaleic acid, polyfumaric acid, polyglutaminic acid, polyaspartic acid, alginic acid, carboxymethylcellulose, and a copolymer including repeating units of at least two of the polymers listed herein.
Abstract:
A power storage device including an electrolyte layer, and a positive electrode and a negative electrode provided, with the electrolyte layer interposed therebetween. At least one of the electrodes is a composite including at least a thiophene polymer (A) having electrical conductivity varied by ion insertion/desertion, and a polycarboxylic acid (B). The polycarboxylic acid (B) is fixed in the electrode. A high-performance power storage device having an excellent capacity density per active substance weight and excellent high-speed charge and discharge characteristics is provided.