公开(公告)号：US20230275273A1

公开(公告)日：2023-08-31

申请号：US18300727

申请日：2023-04-14

Applicant: Ningde Amperex Technology Limited

Inventor： Kefei WANG ,  Dongdong HAN ,  Jun GUO ,  Shengqi LIU

IPC: H01M10/0567 ,  H01M4/04 ,  H01M4/62 ,  H01M10/0568

CPC classification number: H01M10/0567 ,  H01M4/0404 ,  H01M4/625 ,  H01M10/0568 ,  H01M2004/021

Abstract: An electrochemical apparatus includes an electrode and an electrolyte. The electrode includes a current collector, an intermediate layer disposed on the current collector, and an active material layer disposed on the intermediate layer. The intermediate layer has a specific area ratio to the active material layer. The electrolyte includes a sulfur-oxygen double bond-containing compound. The electrochemical apparatus has improved direct current internal resistance and safety performance.