ANSTO Publications Online >
Journal Publications >
Journal Articles >

Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/2804

Title: Structural changes in a commercial lithium-ion battery during electrochemical cycling: an in situ neutron diffraction study.
Authors: Sharma, N
Peterson, VK
Elcombe, MM
Avdeev, M
Studer, AJ
Blagojevic, N
Yusoff, R
Kamarulzaman, N
Keywords: Lithium
Neutron Diffraction
Electric Batteries
Graphite
Electrochemistry
Cathodes
Issue Date: 15-Dec-2010
Publisher: Elsevier
Citation: Sharma, N., Peterson, V. K., Elcombe, M. M., Avdeev, M., Studer, A. J., Blagojevic, N., et al. (2010). Structural changes in a commercial lithium-ion battery during electrochemical cycling: an in situ neutron diffraction study. Journal of Power Sources, 195(24), 8258-8266.
Abstract: The structural response to electrochemical cycling of the components within a commercial Li-ion battery (LiCoO2 cathode, graphite anode) is shown through in situ neutron diffraction. Lithuim insertion and extraction is observed in both the cathode and anode. In particular, reversible Li incorporation into both layered and spinel-type LiCoO2 phases that comprise the cathode is shown and each of these components features several phase transitions attributed to Li content and correlated with the state-of-charge of the battery. At the anode, a constant cell voltage correlates with a stable lithiated graphite phase. Transformation to de-lithiated graphite at the discharged state is characterised by a sharp decrease in both structural cell parameters and cell voltage. In the charged state, a two-phase region exists and is composed of the lithiated graphite phase and about 64% LiC6. It is postulated that trapping Li in the solid|electrolyte interface layer results in minimal structural changes to the lithiated graphite anode across the constant cell voltage regions of the electrochemical cycle. © 2010, Elsevier Ltd.
URI: http://dx.doi.org/10.1016/j.jpowsour.2010.06.114
http://apo.ansto.gov.au/dspace/handle/10238/2804
ISSN: 0378-7753
Appears in Collections:Journal Articles

Files in This Item:

There are no files associated with this item.

Items in APO are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback