Electrochemical and structural study of Li2CuO2, LiCuO2 and NaCuO2

Hajime Arai; Shigeto Okada; Yoji Sakurai; Jun Ichi Yamaki

doi:10.1016/s0167-2738(97)00485-2

Electrochemical and structural study of Li₂CuO₂, LiCuO₂ and NaCuO₂

Hajime Arai, Shigeto Okada, Yoji Sakurai, Jun Ichi Yamaki

Research output: Contribution to journal › Article › peer-review

62 Citations (Scopus)

Abstract

Electrochemical behavior and accompanying structural changes of Li₂CuO₂ and LiCuO₂ were examined. Lithium cupric oxide Li₂CuO₂ was oxidized to LiCuO₂ via two two-phase reactions. One-dimensional [CuO₄] chains in Li₂CuO₂ were maintained during the lithium extraction and insertion processes. When the Li_2-xCuO₂ electrode was cycled at 0.5 mA cm^-2, a rechargeable capacity of 130 mA h g^-1 was obtained with an average voltage of 2.5 V. Lithium extraction from LiCuO₂ lead to a production of CuO and oxygen. Lithium insertion into NaCuO₂ resulted in a new phase formation of LiNaCuO₂.

Original language	English
Pages (from-to)	45-53
Number of pages	9
Journal	Solid State Ionics
Volume	106
Issue number	1-2
DOIs	https://doi.org/10.1016/s0167-2738(97)00485-2
Publication status	Published - Feb 1 1998
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1016/s0167-2738(97)00485-2

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title = "Electrochemical and structural study of Li2CuO2, LiCuO2 and NaCuO2",

abstract = "Electrochemical behavior and accompanying structural changes of Li2CuO2 and LiCuO2 were examined. Lithium cupric oxide Li2CuO2 was oxidized to LiCuO2 via two two-phase reactions. One-dimensional [CuO4] chains in Li2CuO2 were maintained during the lithium extraction and insertion processes. When the Li2-xCuO2 electrode was cycled at 0.5 mA cm-2, a rechargeable capacity of 130 mA h g-1 was obtained with an average voltage of 2.5 V. Lithium extraction from LiCuO2 lead to a production of CuO and oxygen. Lithium insertion into NaCuO2 resulted in a new phase formation of LiNaCuO2.",

author = "Hajime Arai and Shigeto Okada and Yoji Sakurai and Yamaki, {Jun Ichi}",

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T1 - Electrochemical and structural study of Li2CuO2, LiCuO2 and NaCuO2

AU - Arai, Hajime

AU - Okada, Shigeto

AU - Sakurai, Yoji

AU - Yamaki, Jun Ichi

PY - 1998/2/1

Y1 - 1998/2/1

N2 - Electrochemical behavior and accompanying structural changes of Li2CuO2 and LiCuO2 were examined. Lithium cupric oxide Li2CuO2 was oxidized to LiCuO2 via two two-phase reactions. One-dimensional [CuO4] chains in Li2CuO2 were maintained during the lithium extraction and insertion processes. When the Li2-xCuO2 electrode was cycled at 0.5 mA cm-2, a rechargeable capacity of 130 mA h g-1 was obtained with an average voltage of 2.5 V. Lithium extraction from LiCuO2 lead to a production of CuO and oxygen. Lithium insertion into NaCuO2 resulted in a new phase formation of LiNaCuO2.

AB - Electrochemical behavior and accompanying structural changes of Li2CuO2 and LiCuO2 were examined. Lithium cupric oxide Li2CuO2 was oxidized to LiCuO2 via two two-phase reactions. One-dimensional [CuO4] chains in Li2CuO2 were maintained during the lithium extraction and insertion processes. When the Li2-xCuO2 electrode was cycled at 0.5 mA cm-2, a rechargeable capacity of 130 mA h g-1 was obtained with an average voltage of 2.5 V. Lithium extraction from LiCuO2 lead to a production of CuO and oxygen. Lithium insertion into NaCuO2 resulted in a new phase formation of LiNaCuO2.

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U2 - 10.1016/s0167-2738(97)00485-2

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ER -

Electrochemical and structural study of Li₂CuO₂, LiCuO₂ and NaCuO₂

Abstract

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