The formation of yolk-shell structured NiO nanospheres with enhanced lithium storage capacity

Wang, J; Su, P; Zhang, J; Wang, F; Chen, Y; Liu, H; Liu, J

The formation of yolk-shell structured NiO nanospheres with enhanced lithium storage capacity

Wang, J Su, P Zhang, J Wang, F Chen, Y Liu, H

Liu, J

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Publication Type:: Journal Article
Citation:: Materials Chemistry Frontiers, 2019, 3 (8), pp. 1619 - 1625
Issue Date:: 2019-08-01

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Field	Value	Language
dc.contributor.author	Wang, J	en_US
dc.contributor.author	Su, P	en_US
dc.contributor.author	Zhang, J	en_US
dc.contributor.author	Wang, F	en_US
dc.contributor.author	Chen, Y	en_US
dc.contributor.author	Liu, H https://orcid.org/0000-0003-0266-9472	en_US
dc.contributor.author	Liu, J	en_US
dc.date.issued	2019-08-01	en_US
dc.identifier.citation	Materials Chemistry Frontiers, 2019, 3 (8), pp. 1619 - 1625	en_US
dc.identifier.uri	http://hdl.handle.net/10453/136562
dc.description.abstract	© 2019 the Partner Organisations. NiO has been widely applied as an anode material for lithium-ion batteries (LIBs), but the weak conductivity of NiO and serious volume expansion usually lead to poor cycling performance. Herein, we report the synthesis of well-crystallized yolk-shell structured NiO nanospheres (NiO-30) through the direct pyrolysis of Ni coordination polymers (Ni-CPs). Compared to commercial NiO used for LIB anode materials with a capacity of 369 mA h g-1, the resultant yolk-shell structured NiO nanospheres (NiO-30) demonstrate twice the capacity of 733 mA h g-1 at the current density of 100 mA g-1. Furthermore, the cycling stability and rate capability of the NiO-30 samples are much better than those of the commercial NiO. The yolk-shell structures can improve the electronic conductivity, benefit the Li+ ion transport path and buffer the volume changes during the lithium-insertion-extraction processes, which results in high discharge capacity, and good cycling performance and rate capability.	en_US
dc.relation.ispartof	Materials Chemistry Frontiers	en_US
dc.relation.isbasedon	10.1039/c9qm00328b	en_US
dc.title	The formation of yolk-shell structured NiO nanospheres with enhanced lithium storage capacity	en_US
dc.type	Journal Article
utslib.citation.volume	8	en_US
utslib.citation.volume	3	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
utslib.copyright.status	closed_access
pubs.issue	8	en_US
pubs.publication-status	Published	en_US
pubs.volume	3	en_US

Abstract:

© 2019 the Partner Organisations. NiO has been widely applied as an anode material for lithium-ion batteries (LIBs), but the weak conductivity of NiO and serious volume expansion usually lead to poor cycling performance. Herein, we report the synthesis of well-crystallized yolk-shell structured NiO nanospheres (NiO-30) through the direct pyrolysis of Ni coordination polymers (Ni-CPs). Compared to commercial NiO used for LIB anode materials with a capacity of 369 mA h g-1, the resultant yolk-shell structured NiO nanospheres (NiO-30) demonstrate twice the capacity of 733 mA h g-1 at the current density of 100 mA g-1. Furthermore, the cycling stability and rate capability of the NiO-30 samples are much better than those of the commercial NiO. The yolk-shell structures can improve the electronic conductivity, benefit the Li+ ion transport path and buffer the volume changes during the lithium-insertion-extraction processes, which results in high discharge capacity, and good cycling performance and rate capability.

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http://hdl.handle.net/10453/136562