Lithium (De)Intercalation Capacity of Li1.93Mn 0.97Ni0.10O3-δ: Role of Oxygen Deficiency

D. Pasero; L. J. Gillie; Anthony R. West

doi:10.1149/1.1938827

Lithium (De)Intercalation Capacity of Li1.93Mn 0.97Ni0.10O3-δ: Role of Oxygen Deficiency

D. Pasero, L. J. Gillie, Anthony R. West

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6 Citations (Scopus)

Abstract

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 Ni^2+/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 Mn^3+/4+ redox-active couple. Results demonstrating this effect are presented for composition Li_1.93Mn _0.97Ni_0.10O_3-δ. The creation of an oxygen deficiency provides a novel method for enhancing the electrochemical performance of layered, rock-salt structured oxides.

Original language	English
Pages (from-to)	A392-A395
Number of pages	4
Journal	Electrochemical and Solid-State Letters
Volume	8
Issue number	8
DOIs	https://doi.org/10.1149/1.1938827
Publication status	Published - 2005
Externally published	Yes

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title = "Lithium (De)Intercalation Capacity of Li1.93Mn 0.97Ni0.10O3-δ: Role of Oxygen Deficiency",

abstract = "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 Li1.93Mn 0.97Ni0.10O3-δ. The creation of an oxygen deficiency provides a novel method for enhancing the electrochemical performance of layered, rock-salt structured oxides.",

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TY - JOUR

T1 - Lithium (De)Intercalation Capacity of Li1.93Mn 0.97Ni0.10O3-δ

T2 - Role of Oxygen Deficiency

AU - Pasero, D.

AU - Gillie, L. J.

AU - West, Anthony R.

PY - 2005

Y1 - 2005

N2 - 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 Li1.93Mn 0.97Ni0.10O3-δ. The creation of an oxygen deficiency provides a novel method for enhancing the electrochemical performance of layered, rock-salt structured oxides.

AB - 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 Li1.93Mn 0.97Ni0.10O3-δ. The creation of an oxygen deficiency provides a novel method for enhancing the electrochemical performance of layered, rock-salt structured oxides.

KW - Lithium compounds

KW - Manganese compounds

KW - Electrochemical electrodes

KW - Electrochemistry

KW - Reduction (chemical)

KW - Secondary cells

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Lithium (De)Intercalation Capacity of Li1.93Mn 0.97Ni0.10O3-δ: Role of Oxygen Deficiency

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