Patent · US Active

Nitrogen—sulfur—carbon nanocomposites and their application as cathode materials in lithium—sulfur batteries

US9455439B2 · kind B2 · utility

3Cited by

4References

8Claims

0Family size

Assignee

UT-BATTELLE, LLC · US

Inventors

Sheng Dai · Knoxville, US
Xiao-Guang Sun · Knoxville, US
Bingkun Guo · Knoxville, US
Xiqing Wang · Mason, US
Richard T. Mayes · Knoxville, US
Teng Ben · Changchun, CN
Shilun Qiu · Changchun, CN

Key dates

Filing date	Nov 21, 2012
Grant date	Sep 27, 2016
Priority date	—
Expiry date	Oct 26, 2034

Classification

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

Abstract

The invention is directed in a first aspect to electron-conducting porous compositions comprising an organic polymer matrix doped with nitrogen atoms and having elemental sulfur dispersed therein, particularly such compositions having an ordered framework structure. The invention is also directed to composites of such S/N-doped electron-conducting porous aromatic framework (PAF) compositions, or composites of an S/N-doped mesoporous carbon composition, which includes the S/N-doped composition in admixture with a binder, and optionally, conductive carbon. The invention is further directed to cathodes for a lithium-sulfur battery in which such composites are incorporated.

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