SECONDARY BATTERY AND ELECTRICAL DEVICE

Organization Name

CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor(s)

Yonghong Chen of Ningde CN

Rui Shen of Ningde CN

Libing He of Ningde CN

SECONDARY BATTERY AND ELECTRICAL DEVICE

This abstract first appeared for US patent application 19011634 titled 'SECONDARY BATTERY AND ELECTRICAL DEVICE

Original Abstract Submitted

A secondary battery including a negative electrode plate including a negative electrode current collector and a negative electrode film formed on at least one surface of the negative electrode current collector is provided, wherein the negative electrode film has a first surface away from the negative electrode current collector and a second surface disposed opposite to the first surface, thickness of the negative electrode film being denoted as H, a region within a thickness ranging from the second surface of the negative electrode film to 0.3 H being denoted as first region of the negative electrode film, a region within a thickness ranging from the first surface of the negative electrode film to 0.3 H being denoted as second region of the negative electrode film.