NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

A nonaqueous electrolyte secondary battery has an electrode composed of a positive and negative electrodes containing an active material, and a separator between the positive electrode and the negative electrode; wherein one of the positive electrode and the negative electrode contains a binder and is formed on a current collector; the current collector has a structure composed of a resin layer so as to melt upon an abnormal heat generation and a metal layer as an electric conductor formed on both sides of the resin layer; the resin layer has a melting point of 120 to 250° C.; and the binder has a melting point between 70° C. and a lower temperature than above mentioned melting point of the resin layer by 40° C.