Patent · US Active

Lithium-sulfur accumulator

US10658668B2 · kind B2 · utility

0Cited by

0References

19Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Simon LUX · Oakland, US
Philipp OBERHUMER · Munich, DE
Barbara STIASZNY · Obergriesbach, DE
Ann-Christin Gentschev · Belmont, US
Jakub Reiter · Munich, DE

Key dates

Filing date	Apr 14, 2017
Grant date	May 19, 2020
Priority date	—
Expiry date	Sep 30, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lithium-sulfur battery which includes an electrolyte containing lithium-ions, an anode and a cathode containing sulfur. The lithium-sulfur battery also contains a surface layer which is arranged between the anode and the cathode. The lithium-sulfur battery further includes areas on the cathode side which contain polysulfides. The surface layer of the lithium-sulfur battery contains at least one graphene layer which is permeable to lithium ions and impermeable to polysulfides.

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