Abstract:
PROBLEM TO BE SOLVED: To provide a lithium-ion capacitor that is industrially advantageously produced and achieves high-energy density, high power, low resistance, and high reliability. SOLUTION: The lithium-ion capacitor is configured as follows. A positive electrode and a negative electrode include a current-collecting material having through-holes, respectively. The positive electrode includes a material capable of reversibly carrying lithium-ions and/or anions as a positive-electrode active material with the material bound by a binder. The negative electrode includes a material capable of reversibly carrying lithium-ions as a negative-electrode active material. Lithium-ions are electrochemically carried by the positive electrode and/or the negative electrode. The binder is a particulate binder having a particle size of 0.1-0.4 μm and includes a composition comprising 5-20 mass% of a fluorine-containing polymer and a polymer that has a structural unit derived from CH 2 =CR 1 COOR 2 (R 1 represents a hydrogen atom or a methyl group and R 2 represents a 1-18C alkyl group or a 1-18C cycloalkyl group). COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a binder for an energy device electrode, which can provide satisfactory press workability without causing peeling or breakage in press working, and can form an electrode layer having high adhesion to a current collector, and to provide a method for producing the same. SOLUTION: The binder for energy device electrode includes a latex obtained by multiple-stage emulsion polymerization. The polymer component by emulsion polymerization in the first stage is obtained from a monomer mixture containing an aromatic vinyl compound, a conjugated diene compound, a (meth)acrylate, and a vinyl cyanide compound, and the polymer component by emulsion polymerization in the other stage is obtained from a monomer mixture containing an aromatic vinyl compound, a conjugated diene compound and a (meth)acrylate. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
A polymer composition comprising (a) a fluorine-containing polymer and (b) a functional group-containing polymer which contains a structural unit originating from an alkyl (meth)acrylate and a structural unit originating from at least one monomer selected from the group consisting of a sulfonic acid group-containing unsaturated monomer, an amide group-containing unsaturated monomer, and a sulfonic acid group and amide group-containing unsaturated monomer is provided.