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

Patent ·
OSTI ID:1326795

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN)
Patent Number(s):
9,455,439
Application Number:
13/683,520
OSTI ID:
1326795
Resource Relation:
Patent File Date: 2012 Nov 21
Country of Publication:
United States
Language:
English

References (17)

Organic electrolytic solution and lithium-sulfur battery comprising the same patent April 2009
Cyclic guanidine ionic liquid patent March 2012
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Powder Mixture for Manufacture of a Battery Electrode, A Respective Battery Electrode and a Method for Manufacturing Same patent-application December 2010
Sulfur Cathode Hosted in Porous Organic Polymeric Matrices patent-application September 2014
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Effects of Nanosized Adsorbing Material on Electrochemical Properties of Sulfur Cathodes for Li/S Secondary Batteries journal January 2004
Electrochemical characterization and performance improvement of lithium/sulfur polymer batteries journal January 2005
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Synthesis of Mesoporous Carbon Materials via Enhanced Hydrogen-Bonding Interaction journal April 2006
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Preparation and electrochemical characterization of the porous sulfur cathode using a gelatin binder journal June 2008