Patent · US Active

Negative electrode plate and secondary battery

US11721811B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED · CN

Inventors

Yaping HUANG · Jiaocheng District, CN
Mingkui Guo · Jiaocheng District, CN
Yaohui Wang · Beijing, CN
Yongshou Lin · Jiaocheng District, CN
Fenggang ZHAO · Jiaocheng District, CN

Key dates

Filing date	Dec 23, 2020
Grant date	Aug 8, 2023
Priority date	—
Expiry date	Feb 15, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present application relates to the electrochemical field, and in particular, to a negative electrode plate and a secondary battery including the electrode plate. The present application provides a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a first negative electrode active substance layer disposed on at least one surface of the negative electrode current collector, and a second negative electrode active substance layer disposed on the first negative electrode active substance layer. The first negative electrode active substance layer includes a first negative electrode active substance, and the second negative electrode active substance layer includes a second negative electrode active substance. The first negative electrode active substance satisfies 1 GPa≤Young's modulus≤10 GPa, and the second negative electrode active substance satisfies 11 GPa≤Young's modulus≤30 GPa.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.