Patent · US Active

Metal halide cathode with enriched conductive additive

US11824199B2 · kind B2 · utility

1Cited by

4References

30Claims

0Family size

Assignees

International Business Machines Corporation · US
Daimler AG · DE

Inventors

Jangwoo Kim · Kyle, US
Anthony Fong · San Jose, US
Tobias Glossmann · Troy, US
Young-Hye Na · San Jose, US
Maxwell Giammona · Pleasanton, US
Eunseok Lee · Seojong-myeon, KR

Key dates

Filing date	Jul 17, 2020
Grant date	Nov 21, 2023
Priority date	—
Expiry date	Apr 14, 2041

Classification

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

Abstract

A rechargeable metal halide battery shows increased metal halide utilization with the introduction of electronegative heteroatom-enriched conductive additives into a metal halide cathode incorporated into an electrically conductive material. The electronegative heteroatom-enriched conductive additives include nitrogen-doped carbon, such as nitrogen-doped single layer graphene, and oxygen-enriched carbon, such as acid-treated carbon black. The modified batteries utilize 20-30% more metal halide than unmodified batteries resulting in enhanced specific capacity and energy density.

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