Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells
Abstract
The loss of sulfur cathode material as a result of polysulfide dissolution causes significant capacity fading in rechargeable lithium/sulfur cells. Embodiments of the invention use a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide. This approach obtains a uniform and thin (.about.tens of nanometers) sulfur coating on graphene oxide sheets by a chemical reaction-deposition strategy and a subsequent low temperature thermal treatment process. Strong interaction between graphene oxide and sulfur or polysulfides demonstrate lithium/sulfur cells with a high reversible capacity of 950-1400 mAh g.sup.-1, and stable cycling for more than 50 deep cycles at 0.1 C.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1414938
- Patent Number(s):
- 9853284
- Application Number:
- 15/498,113
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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:
- AC02-05CH11231
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2017 Apr 26
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Zhang, Yuegang, Cairns, Elton J., Ji, Liwen, and Rao, Mumin. Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells. United States: N. p., 2017.
Web.
Zhang, Yuegang, Cairns, Elton J., Ji, Liwen, & Rao, Mumin. Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells. United States.
Zhang, Yuegang, Cairns, Elton J., Ji, Liwen, and Rao, Mumin. Tue .
"Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells". United States. https://www.osti.gov/servlets/purl/1414938.
@article{osti_1414938,
title = {Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells},
author = {Zhang, Yuegang and Cairns, Elton J. and Ji, Liwen and Rao, Mumin},
abstractNote = {The loss of sulfur cathode material as a result of polysulfide dissolution causes significant capacity fading in rechargeable lithium/sulfur cells. Embodiments of the invention use a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide. This approach obtains a uniform and thin (.about.tens of nanometers) sulfur coating on graphene oxide sheets by a chemical reaction-deposition strategy and a subsequent low temperature thermal treatment process. Strong interaction between graphene oxide and sulfur or polysulfides demonstrate lithium/sulfur cells with a high reversible capacity of 950-1400 mAh g.sup.-1, and stable cycling for more than 50 deep cycles at 0.1 C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {12}
}
Works referenced in this record:
Graphene-Wrapped Sulfur Particles as a Rechargeable Lithium–Sulfur Battery Cathode Material with High Capacity and Cycling Stability
journal, July 2011
- Wang, Hailiang; Yang, Yuan; Liang, Yongye
- Nano Letters, Vol. 11, Issue 7, p. 2644-2647
Graphene Oxide as a Sulfur Immobilizer in High Performance Lithium/Sulfur Cells
journal, November 2011
- Ji, Liwen; Rao, Mumin; Zheng, Haimei
- Journal of the American Chemical Society, Vol. 133, Issue 46, p. 18522-18525
Sandwich-type functionalized graphene sheet-sulfur nanocomposite for rechargeable lithium batteries
journal, January 2011
- Cao, Yuliang; Li, Xiaolin; Aksay, Ilhan A.
- Physical Chemistry Chemical Physics, Vol. 13, Issue 17, p. 7660-7665