Co<inf>3</inf>O<inf>4</inf>-Carbon Cloth free standing cathode for lithium sulfur battery

Xu, J; Su, D; Wang, G

Co<inf>3</inf>O<inf>4</inf>-Carbon Cloth free standing cathode for lithium sulfur battery

Xu, J Su, D

Wang, G

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Publication Type:: Conference Proceeding
Citation:: IOP Conference Series: Materials Science and Engineering, 2017, 222 (1)
Issue Date:: 2017-07-24

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Field	Value	Language
dc.contributor.author	Xu, J	en_US
dc.contributor.author	Su, D https://orcid.org/0000-0002-3972-8205	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.issued	2017-07-24	en_US
dc.identifier.citation	IOP Conference Series: Materials Science and Engineering, 2017, 222 (1)	en_US
dc.identifier.issn	1757-8981	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126795
dc.description.abstract	© Published under licence by IOP Publishing Ltd. Lithium-sulfur (Li-S) battery has been considered to be one of the most promising next-generation electrochemical energy-storage systems due to its high theoretical energy of 2600 Wh kg-1 with low cost. The insulating nature of both sulfur and the dissolution of polysulfides are the two primary challenges for the application of lithium sulfur batteries. Here, we developed a binder-free cathode by chemisorption of Co3O4 to carbon cloth (CC), which was used as a 3D current collector to accommodate a large amount of sulfur, multiwall carbon nanofiber (MWCNF) and carbon black (CB) hybrids within the conductive scaffold, enabling the fabrication of ultrahigh sulfur loaded electrodes. The interconnected carbon fibers established a long-range conductive matrix for an efficient electron transport, the multiple conductive pathways guarantee high sulfur utilization. More importantly, the high electrolyte absorbability of the Co3O4-CC-S current collector facilitates well-localized polysulfides within the Co3O4-CC-S, meanwhile, the polar Co3O4 could also effectively entrapped the intermediated polysulfides preventing their free diffusion to the lithium anode, guaranteeing good cycling stability. Consequently, the Co3O4-CC-S electrodes exhibit excellent electrochemical performance with sulfur loading of 4.3 mg cm-2.	en_US
dc.relation.ispartof	IOP Conference Series: Materials Science and Engineering	en_US
dc.relation.isbasedon	10.1088/1757-899X/222/1/012013	en_US
dc.title	Co<inf>3</inf>O<inf>4</inf>-Carbon Cloth free standing cathode for lithium sulfur battery	en_US
dc.type	Conference Proceeding
utslib.citation.volume	1	en_US
utslib.citation.volume	222	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	closed_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	222	en_US

Abstract:

© Published under licence by IOP Publishing Ltd. Lithium-sulfur (Li-S) battery has been considered to be one of the most promising next-generation electrochemical energy-storage systems due to its high theoretical energy of 2600 Wh kg-1 with low cost. The insulating nature of both sulfur and the dissolution of polysulfides are the two primary challenges for the application of lithium sulfur batteries. Here, we developed a binder-free cathode by chemisorption of Co3O4 to carbon cloth (CC), which was used as a 3D current collector to accommodate a large amount of sulfur, multiwall carbon nanofiber (MWCNF) and carbon black (CB) hybrids within the conductive scaffold, enabling the fabrication of ultrahigh sulfur loaded electrodes. The interconnected carbon fibers established a long-range conductive matrix for an efficient electron transport, the multiple conductive pathways guarantee high sulfur utilization. More importantly, the high electrolyte absorbability of the Co3O4-CC-S current collector facilitates well-localized polysulfides within the Co3O4-CC-S, meanwhile, the polar Co3O4 could also effectively entrapped the intermediated polysulfides preventing their free diffusion to the lithium anode, guaranteeing good cycling stability. Consequently, the Co3O4-CC-S electrodes exhibit excellent electrochemical performance with sulfur loading of 4.3 mg cm-2.

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http://hdl.handle.net/10453/126795