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

Title: Nitrogen-sulfur-carbon nanocomposites and their application as cathode materials in lithium-sulfur batteries

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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.

Inventors:: Dai, Sheng; Sun, Xiao-Guang; Guo, Bingkun; Wang, Xiqing; Mayes, Richard T.; Ben, Teng; Qiu, Shilun

Issue Date:: 2018-08-07

OSTI Identifier:: 1469117

Assignee:: UT-Batelle, LLC (Oak Ridge, TN) ORNL

Patent Number(s):: 10,044,039

Application Number:: 15/248,349

Contract Number:: AC05-00OR22725

Resource Relation:: Patent File Date: 2016 Aug 26

Research Org:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 25 ENERGY STORAGE

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