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

Abstract

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:
Research Org.:
THE PENN STATE RESEARCH FOUNDATION, University Park, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1234204
Patent Number(s):
9225011
Application Number:
13/938,527
Assignee:
THE PENN STATE RESEARCH FOUNDATION
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
EE0005475
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jul 10
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; 77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Wang, Donghai, Xu, Tianren, and Song, Jiangxuan. Doped carbon-sulfur species nanocomposite cathode for Li--S batteries. United States: N. p., 2015. Web.
Wang, Donghai, Xu, Tianren, & Song, Jiangxuan. Doped carbon-sulfur species nanocomposite cathode for Li--S batteries. United States.
Wang, Donghai, Xu, Tianren, and Song, Jiangxuan. Tue . "Doped carbon-sulfur species nanocomposite cathode for Li--S batteries". United States. https://www.osti.gov/servlets/purl/1234204.
@article{osti_1234204,
title = {Doped carbon-sulfur species nanocomposite cathode for Li--S batteries},
author = {Wang, Donghai and Xu, Tianren and Song, Jiangxuan},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {12}
}

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Works referenced in this record:

A highly ordered nanostructured carbon–sulphur cathode for lithium–sulphur batteries
journal, May 2009


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


Control of Electronic Structure of Graphene by Various Dopants and Their Effects on a Nanogenerator
journal, November 2010


Sulfur-Doped Graphene as an Efficient Metal-free Cathode Catalyst for Oxygen Reduction
journal, December 2011