公开(公告)号：US20240290985A1

公开(公告)日：2024-08-29

申请号：US18574594

申请日：2022-06-24

Applicant: GS Yuasa International Ltd.

Inventor： Miwa KOBAYASHI ,  Yasuyuki ABE

IPC: H01M4/62 ,  H01G11/06 ,  H01G11/32 ,  H01G11/62 ,  H01M4/02 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/42

CPC classification number: H01M4/625 ,  H01G11/06 ,  H01G11/32 ,  H01G11/62 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/4235 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0025

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 containing lithium iron phosphate; a negative electrode containing at least one of graphite and non-graphitic carbon and carbon black; and a nonaqueous electrolyte containing a lithium salt, in which a concentration of the lithium salt in the nonaqueous electrolyte is 0.7 mol/dm3 or less.