Patent · US Active

Negative electrode material for lithium-based batteries

US9859554B2 · kind B2 · utility

5Cited by

0References

20Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Qiangfeng Xiao · New Orleans, US
Mei Cai · Bloomfield Hills, US
Li Yang · Troy, US
Fang Dai · Berga, ES
Meng Jiang · Rochester Hills, US

Key dates

Filing date	Jul 3, 2014
Grant date	Jan 2, 2018
Priority date	—
Expiry date	Jul 10, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A negative electrode material includes an active material. The active material includes a silicon core selected from the group consisting of Si, SiO2, SiOx (0<x<2), a silicon alloy, and a combination thereof. The active material also includes a hard carbon coating formed on the silicon core. The negative electrode material further includes a non-fluorinated binder. The negative electrode material also includes a conductive filler. The loading of the active material in the negative electrode material is greater than 2 mg/cm2.

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