Fuji Jukogyo Kabushiki Kaisha

Subaru Corporation

Sawako Noda

Hideo Yanagita

Satoru Kudo

Kunio Nakazato

In an electric storage device, lithium electrodes are disposed on respective outermost portions of an electrode laminated unit in which a positive electrode and a negative electrode are laminated alternately via positive/negative electrode separators. The lithium electrode includes lithium metal serving as a lithium ion supply source, and a lithium electrode separator (a non-woven fabric separator) constituted by a non-woven fabric that satisfies the following conditions: (a) an average fiber diameter of 0.1 &#x3bc;m to 10 &#x3bc;m; and (b) a thickness of 5 &#x3bc;m to 500 &#x3bc;m is provided. By forming the lithium electrode separator that contacts the lithium electrode including the lithium ion supply source from a non-woven fabric in this manner, a dramatic improvement can be achieved in the cycle characteristic of the electric storage device.

Growing community of inventors

Tokyo, Japan

Sawako Noda