NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME

摘要

A non-aqueous electrolyte secondary battery includes a separator including a base material and a heat resistance layer formed on at least one main surface of the base material and containing inorganic particles and a resin binder. The non-aqueous electrolyte secondary battery further includes an electrode composite material layer stacked on the heat resistance layer and containing electrode active material particles and an interposed layer interposed between the heat resistance layer and the electrode composite material layer. In the interposed layer, the inorganic particles, the resin binder, and the electrode active material particles are present as being mixed. A ratio of a thickness of the interposed layer to a thickness of the base material is not lower than 1% and not higher than 5%.

主权项

1. A non-aqueous electrolyte secondary battery, comprising:
a separator including a base material and a heat resistance layer formed on at least one main surface of said base material and containing inorganic particles and a resin binder; an electrode composite material layer stacked on said heat resistance layer and containing electrode active material particles; and an interposed layer interposed between said heat resistance layer and said electrode composite material layer, in said interposed layer, said inorganic particles, said resin binder, and said electrode active material particles being present as being mixed, and a ratio of a thickness of said interposed layer to a thickness of said base material being not lower than 1% and not higher than 5%.