NEGATIVE ELECTRODE ACTIVE MATERIAL AND AQUEOUS LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode active material for an aqueous lithium secondary battery capable of exhibiting a high discharge capacity and capable of maintaining a high discharge capacity even if charge and discharge are repeated, and to provide the aqueous lithium secondary battery.

SOLUTION: This is a negative electrode active material used in the aqueous lithium secondary battery which contains an aqueous electrolyte solution in which lithium salt is dissolved in water as an electrolyte. This negative electrode active material has as a main component a lithium compound oxide expressed by a basic composition formula Li3Fe2(PO4)3. Furthermore, this is the aqueous lithium secondary battery using this negative electrode active material.

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