Abstract: A secondary battery and an electrochemical device are provided. The secondary battery includes a positive electrode plate, a separator, an electrolyte solution, and a negative electrode plate. The negative electrode plate includes a negative electrode current collector, and a negative electrode active material layer disposed on the negative electrode current collector. Non-faradaic electric quantity Q C of the negative electrode plate satisfies: 0.05?Q?2.5, wherein Q=CdlĂ—?U, Cdl nF is non-faradaic capacitance of the negative electrode plate, and ?U V is potential interval of the negative electrode active material layer.
Type:
Application
Filed:
November 29, 2023
Publication date:
March 28, 2024
Applicant:
Sunwoda Mobility Energy Technology Co., Ltd.