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

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:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1326795
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN) ORNL
Patent Number(s):
9,455,439
Application Number:
13/683,520
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2012 Nov 21
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; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 25 ENERGY STORAGE

Other works cited in this record:

Preparation and electrochemical properties of lithium–sulfur polymer batteries
journal, June 2002

All-solid-state Li/S batteries with highly conductive glass–ceramic electrolytes
journal, August 2003
  • Hayashi, Akitoshi; Ohtomo, Takamasa; Mizuno, Fuminori
  • Electrochemistry Communications, Vol. 5, Issue 8, p. 701-705
  • DOI: 10.1016/S1388-2481(03)00167-X

Electrochemical characterization and performance improvement of lithium/sulfur polymer batteries
journal, January 2005

Improved dischargeability and reversibility of sulfur cathode in a novel ionic liquid electrolyte
journal, April 2006

Synthesis of Mesoporous Carbon Materials via Enhanced Hydrogen-Bonding Interaction
journal, April 2006
  • Liang, Chengdu; Dai, Sheng
  • Journal of the American Chemical Society, Vol. 128, Issue 16, p. 5316-5317
  • DOI: 10.1021/ja060242k

Rechargeable lithium/sulfur battery with suitable mixed liquid electrolytes
journal, January 2007

Sulfur–mesoporous carbon composites in conjunction with a novel ionic liquid electrolyte for lithium rechargeable batteries
journal, February 2008

Preparation and electrochemical characterization of the porous sulfur cathode using a gelatin binder
journal, June 2008

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