NON-AQUEOUS LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a non-aqueous lithium secondary battery in which a voltage drop due to impurities is prevented.

SOLUTION: A thermosetting plasticized polyvinylalcohol-based resin composition is used as a resin composition which suppresses dissolution and precipitation of metal particles and metal compound particles that are mixed as impurities in lithium manganate or amorphous carbon. The positive electrode and negative electrode with the resin composition added thereto are heat treated at a temperature of 150°C and the resin composition is heat-cured, and the cured resin composition exists in layered form on the surface of the metal particles and the metal compound particle. Thereby, dendrite precipitation is suppressed.

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