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

Yasushi Uebou, Shigeto Okada, Jun Ichi Yamaki

Research output: Contribution to journalArticle

32 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 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.

Original languageEnglish
Pages (from-to)119-124
Number of pages6
JournalJournal of Power Sources
Volume115
Issue number1
DOIs
Publication statusPublished - Mar 27 2003

Fingerprint

Lithium
insertion
lithium
Sodium
sodium
Intercalation
intercalation
storage batteries
organic liquids
Secondary batteries
Electrolytes
phosphates
Phosphates
Cathodes
Current density
cathodes
electrolytes
Ions
current density
X ray diffraction

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

Cite this

Electrochemical insertion of lithium and sodium into (MoO2)2P2O7. / Uebou, Yasushi; Okada, Shigeto; Yamaki, Jun Ichi.

In: Journal of Power Sources, Vol. 115, No. 1, 27.03.2003, p. 119-124.

Research output: Contribution to journalArticle

Uebou, Yasushi ; Okada, Shigeto ; Yamaki, Jun Ichi. / Electrochemical insertion of lithium and sodium into (MoO2)2P2O7. In: Journal of Power Sources. 2003 ; Vol. 115, No. 1. pp. 119-124.
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