The electrochemical stability of lithium metal oxides against metalreduction

Date

1998-06-01

Author

Ceder, Gerbrand
Aydınol, Mehmet Kadri

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The possibility of metal reduction during the charging of secondary lithium batteries with LixMO2 cathodes is investigated. Loss of active material due to metal reduction can be one of the causes of capacity decay in these batteries after repeated charging. First principles methods are used to calculate the metal reduction potentials in layered LixMO2 compounds where M = Ti, V, Mn, Fe, Co or Ni. It is found that, for several of these compositions, the metal ions may preferably reduce before the lithium ion during charging. (C) 1998 Elsevier Science B.V. All rights reserved.

Subject Keywords

Lithium batteries, Intercalation, First-principles calculation

URI

https://hdl.handle.net/11511/44444

Journal

Solid State Ionics

DOI

https://doi.org/10.1016/s0167-2738(98)00090-3

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

G. Ceder and M. K. Aydınol, “The electrochemical stability of lithium metal oxides against metalreduction,” Solid State Ionics, pp. 151–157, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/44444.