公开(公告)号：US20200020971A1

公开(公告)日：2020-01-16

申请号：US16486986

申请日：2018-02-16

Applicant: GS Yuasa International Ltd.

Inventor： Hirotsugu IOKA

IPC: H01M10/052 ,  H01M4/36 ,  H01M4/134 ,  H01G11/24

Abstract: A nonaqueous electrolyte energy storage device according to one aspect of the present invention is a nonaqueous electrolyte energy storage device including a positive electrode which has a conductive substrate and a positive electrode composite layer layered on the substrate, wherein the substrate is made from an aluminum alloy containing an element other than aluminum at a content of 1% by mass or more, and the positive electrode composite layer contains particles A and particles B having different particle sizes from each other as positive active materials.