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Title: Method of preparing graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes

Abstract

A method of preparing a graphene-sulfur nanocomposite for a cathode in a rechargeable lithium-sulfur battery comprising thermally expanding graphite oxide to yield graphene layers, mixing the graphene layers with a first solution comprising sulfur and carbon disulfide, evaporating the carbon disulfide to yield a solid nanocomposite, and grinding the solid nanocomposite to yield the graphene-sulfur nanocomposite. Rechargeable-lithium-sulfur batteries having a cathode that includes a graphene-sulfur nanocomposite can exhibit improved characteristics. The graphene-sulfur nanocomposite can be characterized by graphene sheets with particles of sulfur adsorbed to the graphene sheets. The sulfur particles have an average diameter of less than 50 nm.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1177548
Patent Number(s):
8999574
Application Number:
14/225,561
Assignee:
Battelle Memorial Institute (Richland, WA)
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:  
AC05-76RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Mar 26
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Liu, Jun, Lemmon, John P, Yang, Zhenguo, Cao, Yuliang, and Li, Xiaolin. Method of preparing graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes. United States: N. p., 2015. Web.
Liu, Jun, Lemmon, John P, Yang, Zhenguo, Cao, Yuliang, & Li, Xiaolin. Method of preparing graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes. United States.
Liu, Jun, Lemmon, John P, Yang, Zhenguo, Cao, Yuliang, and Li, Xiaolin. Tue . "Method of preparing graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes". United States. https://www.osti.gov/servlets/purl/1177548.
@article{osti_1177548,
title = {Method of preparing graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes},
author = {Liu, Jun and Lemmon, John P and Yang, Zhenguo and Cao, Yuliang and Li, Xiaolin},
abstractNote = {A method of preparing a graphene-sulfur nanocomposite for a cathode in a rechargeable lithium-sulfur battery comprising thermally expanding graphite oxide to yield graphene layers, mixing the graphene layers with a first solution comprising sulfur and carbon disulfide, evaporating the carbon disulfide to yield a solid nanocomposite, and grinding the solid nanocomposite to yield the graphene-sulfur nanocomposite. Rechargeable-lithium-sulfur batteries having a cathode that includes a graphene-sulfur nanocomposite can exhibit improved characteristics. The graphene-sulfur nanocomposite can be characterized by graphene sheets with particles of sulfur adsorbed to the graphene sheets. The sulfur particles have an average diameter of less than 50 nm.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {4}
}

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Works referenced in this record:

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journal, November 2010


Preparation of nano-structured LiFePO4/graphene composites by co-precipitation method
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Improvement of cycle property of sulfur-coated multi-walled carbon nanotubes composite cathode for lithium/sulfur batteries
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