Synthesis and properties of vanadium oxide aerogel films. Technical report, 1 June 1995-31 May 1996
The fine colloid size, high surface area and controllable density of vanadium oxide aerogels make these materials interesting candidates for lithium insertion electrodes. Thin films of vanadium oxide aerogels were prepared using an alkoxide precursor sol and supercritical drying with CO2. Film preparation methods included spin coating of fine aerogel particles suspended in a solvent and dip coating of the precursor sol onto carbon paper substrates. The room temperature electrical conductivity of partially dehydrated materials (V2O5 0.5 H2O) varies from 10(exp {minus}5) S/cm to 10(exp {minus}4) S/cm depending upon the density of the final aerogel. Potential sweep measurements indicate that the films possess good insertion capacity (approx. 2 Li a per V2O5) and can be cycled reversibly.
- Research Organization:
- California Univ., Los Angeles, CA (United States). Dept. of Materials Science and Engineering
- OSTI ID:
- 381609
- Report Number(s):
- AD-A-310637/4/XAB; CNN: Contract N00014-93-1-0245; TRN: 62750378
- Resource Relation:
- Other Information: PBD: 18 Jun 1996
- Country of Publication:
- United States
- Language:
- English
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