| 摘要 |
PROBLEM TO BE SOLVED: To provide: a lithium ion secondary battery negative electrode agent, and a lithium ion secondary battery negative electrode which enable the achievement of a lithium ion secondary battery superior in cycle characteristics; and a lithium ion secondary battery superior in cycle characteristics.SOLUTION: A lithium ion secondary battery negative electrode agent of the present invention comprises: 0.5-30 mass% one or more kinds of carboxylic acid selected from a group consisting of citric acid, oxalic acid, succinic acid, racemic acid, malonic acid, methyl succinic acid, malic acid, diglycolic acid, phthalic acid and a derivative thereof, hemimellitic acid and a derivative thereof, trimellitic acid, naphthalene dicarboxylic acid, terephthalic acid and a derivative thereof, and trimesic acid; and a metal oxide. A lithium ion secondary battery negative electrode of the present invention comprises: a current collector; and an electrode active material layer provided on the current collector and including the lithium ion secondary battery negative electrode agent of the invention. A lithium ion secondary battery of the present invention comprises: a positive electrode; the lithium ion secondary battery negative electrode of the invention; and an electrolyte.SELECTED DRAWING: None |
