V{sub 2}O{sub 5} xerogel films as intercalation hosts for lithium. 1: Insertion stoichiometry, site concentration, and specific energy
- Univ. of Minnesota, Minneapolis, MN (United States)
It is the difference in chemical potential between pure and intercalated states that is the basis for development of rechargeable Li cells and batteries. Li is intercalated into V{sub 2}O{sub 5} (XRG) films up to a stoichiometry of 3.3 moles Li/mole V{sub 2}O{sub 5} (XRG) (3.8 V vs. Li {approx_lt} 1.9). The spin-coated films are highly reversible hosts for Li and do not support cointercalation of solvent molecules. The specific energy (1,137 Wh/kg), and specific capacity (1,682 C/g) are higher than any reported previously for V{sub 2}O{sub 5} xerogel materials or for other vanadium oxides. It is noted that V{sub 2}O{sub 5} (XRG) resembles amorphous modified to some extent by the ordered arrangement of ribbons and fibrils in the dried films.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 64787
- Journal Information:
- Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 4 Vol. 142; ISSN 0013-4651; ISSN JESOAN
- Country of Publication:
- United States
- Language:
- English
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