Silver vanadium oxide provided with a metal oxide coating

Details Silver vanadium oxide provided with a metal oxide coating Silver vanadium oxide provided with a metal oxide coating

H - Electricity

01

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H01M 4/36 (2006.01) A61N 1/378 (2006.01) C25B 9/00 (2006.01) H01M 4/48 (2006.01) H01M 4/66 (2006.01) H01M 6/16 (2006.01)

Patent

CA 2436380

An improved cathode material for nonaqueous electrolyte lithium electrochemical cell is described. The preferred active material is .epsilon.-phase silver vanadium oxide (Ag2V4O11) coated with a protective layer of a metal oxide, preferably .gamma.- phase SVO (Ag1.2V3O1.8). The SVO core provides high capacity and rate capability while the protective coating reduces reactivity of the active particles with electrolyte to improve the long- term stability of the cathode.

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