A free-standing LiFePO<inf>4</inf>-carbon paper hybrid cathode for flexible lithium-ion batteries

Kretschmer, K; Sun, B; Xie, X; Chen, S; Wang, G

A free-standing LiFePO<inf>4</inf>-carbon paper hybrid cathode for flexible lithium-ion batteries

Kretschmer, K

Sun, B

Xie, X

Chen, S Wang, G

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Publication Type:: Journal Article
Citation:: Green Chemistry, 2016, 18 (9), pp. 2691 - 2698
Issue Date:: 2016-01-01

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Field	Value	Language
dc.contributor.author	Kretschmer, K https://orcid.org/0000-0002-9089-6300	en_US
dc.contributor.author	Sun, B https://orcid.org/0000-0002-4365-486X	en_US
dc.contributor.author	Xie, X https://orcid.org/0000-0002-8670-8397	en_US
dc.contributor.author	Chen, S	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.issued	2016-01-01	en_US
dc.identifier.citation	Green Chemistry, 2016, 18 (9), pp. 2691 - 2698	en_US
dc.identifier.issn	1463-9262	en_US
dc.identifier.uri	http://hdl.handle.net/10453/46279
dc.description.abstract	© 2016 The Royal Society of Chemistry. Lithium-ion batteries (LIBs) are widely implemented to power portable electronic devices and are increasingly in demand for large-scale applications. One of the major obstacles for this technology is still the low cost-efficiency of its electrochemical active materials and production processes. In this work, we present a novel impregnation-carbothermal reduction method to generate a LiFePO4-carbon paper hybrid electrode, which doesn't require a metallic current collector, polymeric binder or conducting additives to function as a cathode material in a LIB system. A shell of LiFePO4 crystals was grown in situ on carbon fibres during the carbonization of microcrystalline cellulose. The LiFePO4-carbon paper electrode achieved an initial reversible areal capacity of 197 μA h cm-2 increasing to 222 μA h cm-2 after 500 cycles at a current density of 0.1 mA cm-2. The hybrid electrode also demonstrated a superior cycling performance for up to 1000 cycles. The free-standing electrode could be potentially applied for flexible lithium-ion batteries.	en_US
dc.relation.ispartof	Green Chemistry	en_US
dc.relation.isbasedon	10.1039/c5gc02602d	en_US
dc.subject.classification	Organic Chemistry	en_US
dc.title	A free-standing LiFePO<inf>4</inf>-carbon paper hybrid cathode for flexible lithium-ion batteries	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	18	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	03 Chemical Sciences	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	open_access
pubs.issue	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	18	en_US

Abstract:

© 2016 The Royal Society of Chemistry. Lithium-ion batteries (LIBs) are widely implemented to power portable electronic devices and are increasingly in demand for large-scale applications. One of the major obstacles for this technology is still the low cost-efficiency of its electrochemical active materials and production processes. In this work, we present a novel impregnation-carbothermal reduction method to generate a LiFePO4-carbon paper hybrid electrode, which doesn't require a metallic current collector, polymeric binder or conducting additives to function as a cathode material in a LIB system. A shell of LiFePO4 crystals was grown in situ on carbon fibres during the carbonization of microcrystalline cellulose. The LiFePO4-carbon paper electrode achieved an initial reversible areal capacity of 197 μA h cm-2 increasing to 222 μA h cm-2 after 500 cycles at a current density of 0.1 mA cm-2. The hybrid electrode also demonstrated a superior cycling performance for up to 1000 cycles. The free-standing electrode could be potentially applied for flexible lithium-ion batteries.

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http://hdl.handle.net/10453/46279