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Title: Using in operando diffraction to relate lattice strain with degradation mechanism in a NMC battery

Journal Article · · Journal of Materials Science

Crystallographic structural changes in a commercial 5 Ah prismatic graphite–NMC battery were investigated during its operation using energy-dispersive X-ray diffraction. The characteristic diffraction peaks for the anode and cathode were identified, and their peak positions were linked to the charge–discharge cycle of the battery. Here, the edge of the negative terminal of battery was shown to undergo irregular cycling behavior. Stresses developed at the battery layer interfaces were proposed to be the source for this deterioration, which limits the lifetime of the battery. The effect of pulse discharge on strain in cathode has also been studied.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
Argonne National Laboratory, Advanced Photon Source; Office of Naval Research; USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1524587
Journal Information:
Journal of Materials Science, Journal Name: Journal of Materials Science Journal Issue: 3 Vol. 54; ISSN 0022-2461
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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