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Study of the effect of cation substitution on the formation of microcracks in Ni-rich layered oxides
- Authors: Moiseev I.A.1, Golubnichiy А.А.1, Pavlova А.P.1, Abakumov А.M.1
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Affiliations:
- Skolkovo Institute of Science and Technology
- Issue: Vol 87, No 10 (2023)
- Pages: 1416-1422
- Section: Articles
- URL: https://journals.rcsi.science/0367-6765/article/view/141836
- DOI: https://doi.org/10.31857/S0367676523702472
- EDN: https://elibrary.ru/PKJQCA
- ID: 141836
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Abstract
The formation of microcracks in agglomerated particles of positive electrode (cathode) material based on Ni-enriched layered oxide LiNi0.6Mn0.2Co0.2O2 has been studied using transmission electron microscopy. The influence of magnesium cations as a doping additive on the stability of the material to the accumulation of structural defects and the formation of cracks during long-term galvanostatic cycling is demonstrated, and a mechanism for stress relaxation is proposed.
About the authors
I. A. Moiseev
Skolkovo Institute of Science and Technology
Email: a.abakumov@skoltech.ru
Russia, 121205, Moscow
А. А. Golubnichiy
Skolkovo Institute of Science and Technology
Email: a.abakumov@skoltech.ru
Russia, 121205, Moscow
А. P. Pavlova
Skolkovo Institute of Science and Technology
Email: a.abakumov@skoltech.ru
Russia, 121205, Moscow
А. M. Abakumov
Skolkovo Institute of Science and Technology
Author for correspondence.
Email: a.abakumov@skoltech.ru
Russia, 121205, Moscow
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