公开(公告)号：US20240356043A1

公开(公告)日：2024-10-24

申请号：US18693359

申请日：2022-09-21

Applicant: GS Yuasa International Ltd.

Inventor： Yuya ITAMI ,  Hideto WATANABE ,  Hiromasa MURAMATSU ,  Heisuke NISHIKAWA

IPC: H01M4/62 ,  H01G11/26 ,  H01G11/30 ,  H01G11/52 ,  H01G11/74 ,  H01G11/86 ,  H01M4/02 ,  H01M4/134 ,  H01M10/0587

CPC classification number: H01M4/628 ,  H01G11/26 ,  H01G11/30 ,  H01G11/52 ,  H01G11/74 ,  H01G11/86 ,  H01M4/134 ,  H01M10/0587 ,  H01M2004/027

Abstract: An energy storage device according to one aspect of the present invention includes: an electrode assembly including a positive electrode, a negative electrode, and a separator; and a nonaqueous electrolyte, in which the negative electrode includes: a negative substrate; a first layer disposed directly or indirectly on the separator side of the negative substrate and containing a metal of gold, platinum, or a combination thereof; and a second layer disposed on the separator side of the first layer, containing a polymer having lithium ion conductivity and a lithium salt, and capable of regulating passage of the nonaqueous electrolyte, and the negative electrode further includes a lithium metal layer disposed between the negative substrate and the first layer.