Silver-doped vanadium oxides as host materials for lithium intercalation
Conference
·
OSTI ID:20019164
An improved cathodic material has been obtained by doping vanadium oxide hydrogel with silver. Silver-doped vanadium pentoxides with a silver molar fraction ranging from 0.01 to 1 were synthesized. With the successful doping, the electronic conductivity of V{sub 2}O{sub 5} was increased by 2 to 3 orders of magnitude. The electrochemical performance of the silver doped materials is very high, up to 4 moles of lithium per mole of silver-doped V{sub 2}O{sub 5} were found to be reversibly intercalated. In addition, the lithium diffusion coefficient is found to be high in the silver-doped material and with a smaller dependence on the lithium intercalation level. These enhancements resulted in high rates of insertion and delivered capacities.
- Research Organization:
- Univ. of Minnesota, Minneapolis, MN (US)
- Sponsoring Organization:
- US Department of the Army
- OSTI ID:
- 20019164
- Country of Publication:
- United States
- Language:
- English
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