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

2007-05-01

2007-05-01

Weiner, Laura (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S220000, C429S221000, C429S224000, C429S231100, C429S231300, C429S231500, C429S231950, C429S332000, C429S128000

Reexamination Certificate

active

10631097

ABSTRACT:
An improved cathode material for nonaqueous electrolyte lithium electrochemical cell is described. The preferred active material is ε-phase silver vanadium oxide (Ag2V4O11) coated with a protective layer of a metal oxide, preferably γ-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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