Effect of Cation Substitution on the Formation of Microcracks in Ni-Rich Layered Oxides

Transmission electron microscopy is used to study the formation of microcracks in agglomerated particles of positive electrode (cathode) materials based on Ni-rich layered oxide LiNi 0.6 Mn 0.2 Co 0.2 O 2 . The effect the magnesium cation additive has on the stability of the material against the acc...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2023-10, Vol.87 (10), p.1449-1454
Main Authors: Moiseev, I. A., Golubnichiy, A. A., Pavlova, A. P., Abakumov, A. M.
Format: Article
Language:English
Subjects:
Cations
Hadrons
Heavy Ions
Magnesium
Microcracks
Nuclear Physics
Physics
Physics and Astronomy
Stress relaxation
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Summary:Transmission electron microscopy is used to study the formation of microcracks in agglomerated particles of positive electrode (cathode) materials based on Ni-rich layered oxide LiNi 0.6 Mn 0.2 Co 0.2 O 2 . The effect the magnesium cation additive has on the stability of the material against the accumulation of structural defects and formation of cracks upon prolonged galvanostatic cycling is demonstrated and a mechanism of stress relaxation is proposed.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873823703471