METHOD OF PRODUCING ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY

摘要

An active material layer 2 is applied on a current collector 1 so as to expose respective end parts of the current collector 1. A first active material layer non-formation part 1a at one of the end parts of the current collector 1 is formed narrower than a second active material layer non-formation part 1b at the other end part thereof. Next, a porous film 3 is formed on the current collector 1 to cover the active material layer 2. In this formation, the porous film 3 covers the edge surface of the active material layer 2 at the first non-formation part 1a while exposing a part of the second non-formation part 1b of the current collector 1.