Patent · US Active

Lithium-ion rechargeable battery negative electrode active material and preparation method thereof, lithium-ion rechargeable battery negative electrode plate, and lithium-ion rechargeable battery

US11569496B2 · kind B2 · utility

0Cited by

1References

7Claims

0Family size

Assignee

Huawei Technologies Co., Ltd. · CN

Inventors

Jiahua Liang · Lo Wu, CN
Shengan Xia · Lo Wu, CN
Fengchao Xie · Dongguan, CN

Key dates

Filing date	Jun 18, 2018
Grant date	Jan 31, 2023
Priority date	—
Expiry date	Oct 28, 2038

Classification

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

Abstract

A lithium-ion rechargeable battery negative electrode active material and a preparation method thereof, a lithium-ion rechargeable battery negative electrode plate, and a lithium-ion rechargeable battery are provided. The negative electrode active material includes a carbon core and a coating layer formed on a surface of the carbon core, a material of the coating layer includes amorphous carbon and a doping element, and the doping element includes element nitrogen. The lithium-ion rechargeable battery negative electrode active material has the carbon core, and the coating layer that includes the doping element and the amorphous carbon is provided on the surface of the carbon core.

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