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Title: Doped carbon-sulfur species nanocomposite cathode for Li--S batteries

We report a heteroatom-doped carbon framework that acts both as conductive network and polysulfide immobilizer for lithium-sulfur cathodes. The doped carbon forms chemical bonding with elemental sulfur and/or sulfur compound. This can significantly inhibit the diffusion of lithium polysulfides in the electrolyte, leading to high capacity retention and high coulombic efficiency.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1234204
Assignee:
THE PENN STATE RESEARCH FOUNDATION DOEEE
Patent Number(s):
9,225,011
Application Number:
13/938,527
Contract Number:
EE0005475
Resource Relation:
Patent File Date: 2013 Jul 10
Research Org:
THE PENN STATE RESEARCH FOUNDATION, University Park, PA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Other works cited in this record:

A highly ordered nanostructured carbon–sulphur cathode for lithium–sulphur batteries
journal, May 2009
  • Ji, Xiulei; Lee, Kyu Tae; Nazar, Linda F.
  • Nature Materials, Vol. 8, Issue 6, p. 500-506
  • DOI: 10.1038/nmat2460

Electrochemical capacitor performance of N-doped mesoporous carbons prepared by ammoxidation
journal, May 2008

Nitrogen-Doped Ordered Mesoporous Graphitic Arrays with High Electrocatalytic Activity for Oxygen Reduction
journal, March 2010
  • Liu, Ruili; Wu, Dongqing; Feng, Xinliang
  • Angewandte Chemie International Edition, Vol. 49, Issue 14, p. 2565-2569
  • DOI: 10.1002/anie.200907289

Sulfur-Doped Graphene as an Efficient Metal-free Cathode Catalyst for Oxygen Reduction
journal, December 2011
  • Yang, Zhi; Yao, Zhen; Li, Guifa
  • ACS Nano, Vol. 6, Issue 1, p. 205-211
  • DOI: 10.1021/nn203393d

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