Abstract
The compound Bi4V2O11 has been tested as a positive electrode in room temperature electrochemical lithium cells. When the cells are discharged down to 0.5 V the reaction of Bi4V2O11 with 28 lithium ions develops a theoretical specific capacity of 700 Ahkg−1. Hence, this compound could be used as cathode in primary lithium batteries. Besides, we consider the fact that in the low voltage region (1.3–0.5 V) Li28Bi4V2O11 develops about 360 Ahkg−1 at 0.7 V, and, therefore, this material is proposed as a negative electrode in lithium ion batteries. The mechanism of the reaction of Bi4V2O11 with 28 lithium ions is not yet fully understood, although some guidelines can be given.
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