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In operando X-ray absorption spectroscopy study of charge rate effects on the atomic environment in graphene-coated Li-rich mixed oxide cathode

Abstract:

Li2O extraction from the electrode material is known to be a dominant mechanism of irreversible battery capacity loss in the first cycle. The extraction mechanism of the Li+ ions shows dependence on the charge rate. Here for the first time we report the difference in the electrochemical behavior at two different charge rates (0.125 C vs 0.5 C) observed using novel design transmission coin cells in the graphene-coated Li(Li0.2Mn0.54Ni0.13Co0.13)O2 cathode by in operando X-ray absorption spectr...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1016/j.matdes.2016.03.028

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Diamond Light Source More from this funder
Publisher:
Elsevier Ltd. Publisher's website
Journal:
Materials & Design Journal website
Volume:
98
Pages:
231-242
Publication date:
2016-03-08
Acceptance date:
2016-03-07
DOI:
ISSN:
0264-1275 and 1873-4197
Pubs id:
pubs:618167
URN:
uri:ecb947f8-9a76-4bd3-b81d-b237c85bfda3
UUID:
uuid:ecb947f8-9a76-4bd3-b81d-b237c85bfda3
Local pid:
pubs:618167

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