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

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:: Wang, Donghai; Xu, Tianren; Song, Jiangxuan

Issue Date:: 2015-12-29

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

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Works referenced in this record:

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Ji, Xiulei; Lee, Kyu Tae; Nazar, Linda F.
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