公开(公告)号：US20230096730A1

公开(公告)日：2023-03-30

申请号：US18074801

申请日：2022-12-05

Applicant: Ningde Amperex Technology Limited

Inventor： Kefei WANG ,  Liang SHI

IPC: H01M10/0568 ,  H01M4/04 ,  H01M10/0569 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525

Abstract: An electrochemical apparatus, including a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode mixture layer formed on the positive electrode current collector, where the electrolyte contains a specific proportion of lithium difluorophosphate, and the positive electrode mixture layer has a relatively small thickness change rate.