THERMOSETING POLYVINYL ALCOHOLIC BINDER RESIN COMPOSITION, SLURRY OF ELECTRODE MIX, ELECTRODE, NON-AQUEOUS ELECTROLYSIS SOLITION-CONTAINING SECONDARY BATTERY AND THERMOSETTING POLYVINYL ALCOHOLIC BINDER RESIN AS ELECTRODE MATERIAL

摘要

The invention provides a thermosetting binder resin composition comprising: (A) a thermosetting polyvinyl alcoholic binder resin, (B) an acrylic resin plasticizer and (C) a solvent; a thermosetting binder resin composition comprising a thermosetting polyvinyl alcoholic binder resin having thermosetting units represented by general formula (III) and a solvent; a slurry of an electrode mix containing the binder resin composition; and an electrode and non-aqueous electrolysis solution-containing secondary battery using the same: wherein one of R3 and R4 represents a hydrogen atom and the other represents an alkenyl group. The polyvinyl alcoholic thermosetting binder resin composition is excellent in the electrolysis solution resistance at a high temperature (50 DEG C) in the proximity to the upper limit of the working temperature of the lithium secondary battery, never causes any cracking, peeling off and dropping out of the electrode mix layer during the process for producing such a cell and has excellent softness and flexibility. A non-aqueous electrolysis solution-containing secondary battery assembled using electrodes each prepared by applying a slurry of an electrode mix, which comprises the thermosetting binder resin composition and a positive or negative electrode-active material, onto a current collector and then drying the coated current collector has an energy capacity whose reduction in charge-discharge cycles at 50 DEG C is considerably retarded and thus has an improved high temperature service life.