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Lithium (De)Intercalation Capacity of Li[sub 1.93]Mn[sub 0.97]Ni[sub 0.10]O[sub 3−δ]

Pasero, D., Gillie, Lisa .J. and West, Anthony R. (2005) Lithium (De)Intercalation Capacity of Li[sub 1.93]Mn[sub 0.97]Ni[sub 0.10]O[sub 3−δ]. Electrochemical and Solid-State Letters, 8 (8). A392-A395. ISSN 1099-0062

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Two compositional factors that control the lithium (de)intercalation capacity of nickel-doped Li2MnO3 have been identified. First is the Ni2+ content and (de)intercalation associated with the Ni2+/4+ redox-active couple. Second is the amount of oxygen deficiency achieved by preparing samples at different temperatures, together with creation of Mn3+ ions for charge balance and (de)intercalation associated with the Mn3+/4+ redox-active couple. Results demonstrating this effect are presented for composition Li1.93Mn0.97Ni0.10O3–. The creation of an oxygen deficiency provides a novel method for enhancing the electrochemical performance of layered, rock-salt structured oxides.

Item Type: Article
Subjects: Q Science > Q Science (General)
Schools: School of Applied Sciences
School of Applied Sciences > Materials and Catalysis Research Centre
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Depositing User: Cherry Edmunds
Date Deposited: 23 Jul 2008 15:56
Last Modified: 28 Aug 2021 10:39


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