Doped Vanadium Oxides as Host Materials for Lithium Intercalation
| Autor: | F. Coustier, Stefano Passerini, William H. Smyrl, Boone B. Owens, Jason Hill |
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| Rok vydání: | 1999 |
| Předmět: |
inorganic chemicals
Materials science Lithium vanadium phosphate battery Renewable Energy Sustainability and the Environment Doping Inorganic chemistry technology industry and agriculture Vanadium chemistry.chemical_element social sciences Condensed Matter Physics Mole fraction Electrochemistry Copper Vanadium oxide Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry Materials Chemistry lipids (amino acids peptides and proteins) Lithium human activities |
| Zdroj: | Journal of The Electrochemical Society. 146:1355-1360 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/1.1391770 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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