Please use this identifier to cite or link to this item: https://doi.org/10.1021/jp2026237
Title: Time-dependent in-situ neutron diffraction investigation of a Li(Co 0.16Mn1.84)O4 cathode
Authors: Sharma, N.
Reddy, M.V. 
Du, G.
Adams, S. 
Chowdari, B.V.R. 
Guo, Z.
Peterson, V.K.
Issue Date: 3-Nov-2011
Source: Sharma, N., Reddy, M.V., Du, G., Adams, S., Chowdari, B.V.R., Guo, Z., Peterson, V.K. (2011-11-03). Time-dependent in-situ neutron diffraction investigation of a Li(Co 0.16Mn1.84)O4 cathode. Journal of Physical Chemistry C 115 (43) : 21473-21480. ScholarBank@NUS Repository. https://doi.org/10.1021/jp2026237
Abstract: Real-time in-situ neutron diffraction data reveal for the first time that the Li(Co0.16Mn1.84)O4 cathode undergoes current-free discharge. We find that current-free discharge occurs in a partially charged Li(Co0.16Mn1.84)O4 cathode during its first charge cycle over a period of 11 h resulting in a 44(2)% expansion of the crystal lattice. The rate of change in the lattice parameter during the current-free discharge process is half the rate and more linear than for an applied-current discharge of -0.5 mA. The origins of current-free discharge are discussed along with the implications of nonequilibrium relaxation processes in in-situ neutron and X-ray diffraction studies. We show that the lattice does not return to the predischarge values after either current-applied or current-free discharge, indicating a limited ability for Li reinsertion (capacity loss) in partially charged Li(Co0.16Mn1.84) O4 batteries. © 2011 American Chemical Society.
Source Title: Journal of Physical Chemistry C
URI: http://scholarbank.nus.edu.sg/handle/10635/86814
ISSN: 19327447
DOI: 10.1021/jp2026237
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

32
checked on Feb 14, 2018

WEB OF SCIENCETM
Citations

33
checked on Feb 14, 2018

Page view(s)

18
checked on Feb 20, 2018

Google ScholarTM

Check

Altmetric


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