公开(公告)号：US10170767B2

公开(公告)日：2019-01-01

申请号：US15078961

申请日：2016-03-23

Applicant: GS Yuasa International Ltd.

Inventor： Takeshi Sasaki ,  Hirokazu Kambayashi ,  Kazuto Maeda

IPC: H01M10/0587 ,  H01M4/66 ,  H01M10/0567 ,  H01M2/26 ,  H01M10/04 ,  H01M4/70

Abstract: Provided is an energy storage device which includes: an electrode assembly including a positive electrode and a negative electrode respectively including a non-coated region having a metal foil; current collectors each having a support portion which is made to overlap with the non-coated region; and opposedly facing supports each configured to clamp the non-coated region cooperatively with the support portion, wherein at least one of the non-coated region, the support portion and the opposedly facing support includes a conductive layer having non-oxidizing property or hardly-oxidizable property, the conductive layer covering at least one surface out of a surface of the non-coated region facing the support portion, a surface of the non-coated region facing the opposedly facing support, a surface of the support portion facing the non-coated region, and a surface of the opposedly facing support facing the non-coated region.