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Entropy profiling for the diagnosis of NCA/Gr-SiOx Li-ion battery health

Abstract:

Graphite-silicon (Gr-Si) blends have become common in commercial Li-ion battery negative electrodes, offering increased capacity over pure graphite. Lithiation/delithiation of the silicon particles results in volume changes, which may be associated with increased hysteresis of the open circuit potential (OCP). The OCP is a function of both concentration and temperature. Entropy change measurement, which probes the response of the OCP to temperature, offers a unique battery diagnostics tool. W...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1149/1945-7111/ac87d1

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Role:
Author
ORCID:
0000-0003-2274-0002
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Role:
Author
ORCID:
0000-0001-9004-3466
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Role:
Author
ORCID:
0000-0001-8125-6793
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Name:
Faraday Institution
Grant:
P88843
Publisher:
The Electrochemical Society
Journal:
Journal of The Electrochemical Society More from this journal
Volume:
169
Issue:
10
Article number:
100527
Publication date:
2022-08-08
Acceptance date:
2022-08-01
DOI:
EISSN:
1945-7111
ISSN:
0013-4651
Language:
English
Keywords:
Pubs id:
1275094
Local pid:
pubs:1275094
Deposit date:
2022-08-22

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