公开(公告)号：US20250070245A1

公开(公告)日：2025-02-27

申请号：US18622931

申请日：2024-03-30

Applicant: Ningde Amperex Technology Limited

Inventor： Xin CAI ,  Hui CUI ,  Chao TANG

IPC: H01M10/0567 ,  H01M4/02 ,  H01M4/587 ,  H01M10/0525

Abstract: An electrolyte of the electrochemical apparatus includes a linear carboxylate compound and a dinitrile compound. Based on total mass of the electrolyte, a mass percentage a of the linear carboxylate compound is 20% to 70% and a mass percentage b of the dinitrile compound is 0.01% to 7%; a bonding force between a negative electrode active material layer and a negative electrode current collector of a negative electrode plate is peeling strength, where the peeling strength F measured in N/m is 5 N/m to 20 N/m; and the mass percentage a of the linear carboxylate compound, the mass percentage b of the dinitrile compound, and the peeling strength F satisfy a relation 0.14≤(100b+F)/100a≤1.35.