AQUEOUS LATEX, SEPARATOR/INTERMEDIATE LAYER LAMINATE, AND STRUCTURE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES

摘要

Provided are: a structure for nonaqueous electrolyte secondary batteries, wherein a positive electrode and a separator are firmly adhered to each other and/or a negative electrode and the separator are firmly adhered to each other; an aqueous latex which is used in order to obtain the structure for nonaqueous electrolyte secondary batteries; and a separator/intermediate layer laminate. An aqueous latex according to the present invention contains polymer particles that are dispersed in water. The polymer particles contain a copolymer that contains a structural unit derived from an unsaturated dibasic acid and/or a structural unit derived from an unsaturated dibasic acid monoester, and a structural unit derived from a vinylidene fluoride monomer. The aqueous latex is used for the production of an intermediate layer which is arranged between a positive electrode and a separator and/or between a negative electrode and the separator in a structure for nonaqueous electrolyte secondary batteries, said structure comprising the positive electrode, the negative electrode and the separator that is arranged between the positive electrode and the negative electrode.