METHOD OF PREPARING epsi-PHASE SILVER VANADIUM OXIDE USING gamma-PHASE SILVER VANADIUM OXIDE AS STARTING MATERIAL

摘要

PROBLEM TO BE SOLVED: To manufacture an improved cathode active material for a nonaqueous lithium electrochemical battery. SOLUTION: The cathode active material is manufactured to contain an ε-phase silver vanadium oxide manufactured using γ-phase silver vanadium oxide as a starting material. Reaction between the γ-phase silver vanadium oxide and a silver salt generates the novel ε-phase silver vanadium oxide having a low surface area compared with that of an ε-phase silver vanadium oxide using vanadium oxide (V2 O5 ) and a similar silver salt as the starting material. The ε-phase silver vanadium oxide having the low surface area exhibits a long period stability in the pulse-dischargeable battery.