Electrochemical insertion of lithium and sodium into (MoO2)2P2O7
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 i...
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Published in | Journal of power sources Vol. 115; no. 1; pp. 119 - 124 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Lausanne
Elsevier Sequoia
27.03.2003
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Subjects | |
Online Access | Get full text |
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Summary: | 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 mA cm-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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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0378-7753 1873-2755 |
DOI: | 10.1016/S0378-7753(02)00648-1 |