Electrochemical insertion of lithium and sodium into (MoO2)2P2O7

Yasushi Uebou; Shigeto Okada; Jun Ichi Yamaki

doi:10.1016/S0378-7753(02)00648-1

Electrochemical insertion of lithium and sodium into (MoO₂)₂P₂O₇

Yasushi Uebou, Shigeto Okada, Jun Ichi Yamaki

Department of Advanced Device Materials

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

45 Citations (Scopus)

Abstract

Insertion of lithium and sodium into phosphate (MoO₂)₂P₂O₇ was investigated electrochemically to determine the usefulness as a possible cathode for ion-transfer secondary batteries. Specific charges of up to 250 mAhg^-1 were obtained for A/(MoO₂)₂P₂O₇ (A: Li, Na) cells with liquid organic electrolytes in the first reduction half-cycle at room temperature. Intercalation processes under constant current densities of 0.2 mAcm^-2 were reversible within the range of composition 0.85 < x < 4.0 for lithium and 0.5 < x < 3.1 for sodium in A_x(MoO₂)₂P₂O₇ (A: Li, Na), respectively. Structural changes induced by lithium or sodium intercalation were followed by ex situ X-ray diffraction measurements, and the phase change from the crystal to the amorphous was observed in both cases.

Original language	English
Pages (from-to)	119-124
Number of pages	6
Journal	Journal of Power Sources
Volume	115
Issue number	1
DOIs	https://doi.org/10.1016/S0378-7753(02)00648-1
Publication status	Published - Mar 27 2003

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/S0378-7753(02)00648-1

Cite this

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abstract = "Insertion of lithium and sodium into phosphate (MoO2)2P2O7 was investigated electrochemically to determine the usefulness as a possible cathode for ion-transfer secondary batteries. Specific charges of up to 250 mAhg-1 were obtained for A/(MoO2)2P2O7 (A: Li, Na) cells with liquid organic electrolytes in the first reduction half-cycle at room temperature. Intercalation processes under constant current densities of 0.2 mAcm-2 were reversible within the range of composition 0.85 < x < 4.0 for lithium and 0.5 < x < 3.1 for sodium in Ax(MoO2)2P2O7 (A: Li, Na), respectively. Structural changes induced by lithium or sodium intercalation were followed by ex situ X-ray diffraction measurements, and the phase change from the crystal to the amorphous was observed in both cases.",

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N2 - Insertion of lithium and sodium into phosphate (MoO2)2P2O7 was investigated electrochemically to determine the usefulness as a possible cathode for ion-transfer secondary batteries. Specific charges of up to 250 mAhg-1 were obtained for A/(MoO2)2P2O7 (A: Li, Na) cells with liquid organic electrolytes in the first reduction half-cycle at room temperature. Intercalation processes under constant current densities of 0.2 mAcm-2 were reversible within the range of composition 0.85 < x < 4.0 for lithium and 0.5 < x < 3.1 for sodium in Ax(MoO2)2P2O7 (A: Li, Na), respectively. Structural changes induced by lithium or sodium intercalation were followed by ex situ X-ray diffraction measurements, and the phase change from the crystal to the amorphous was observed in both cases.

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