Lithium vanadium composite oxide for negative electrode active material of water based lithium secondary battery, method for producing the same, and lithium secondary battery using the same

摘要

PROBLEM TO BE SOLVED: To provide negative electrode active material for structuring a lithium secondary battery having a large capacity and excellent cycle characteristics, and to provide a simple manufacturing method thereof, and to provide a low- priced lithium secondary battery having high safety, a large capacity and excellent cycle characteristics by using this negative electrode active material to form an aqueous lithium secondary battery. SOLUTION: As the negative electrode active material, a lithium-vanadium compound oxide having LiV2 O4 as the basic composition and having the spinel structure is used. A manufacturing method thereof includes a raw material mixing process for obtaining the raw material mixture by mixing the lithium compound as a lithium source, a vanadium compound as a vanadium source and a carbon material, and a baking process for obtaining the lithium-vanadium compound oxide by baking the raw material mixture.