| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive electrode mix paste capable of preventing lowering of capacity due to deterioration of a positive electrode active material and a collector from being dissolved when coating paste on it, even when the positive electrode active material mainly composed of nickel and including lithium-contained metallic composite oxide, a conductive material, a fluorine resin and a water-soluble high molecule, is included and water is used as a solvent, and to provide a lithium secondary battery of high energy density using the paste. SOLUTION: This positive electrode mix paste for lithium secondary battery is composed of a positive electrode mix including LixNiyM1-yO2 (0.9<x<1.2, 0.6<y<<=1, M in transition metallic element, and at least one kind of elements selected from 1B, 2A, 3A, 4B, 5B), a conductive material, a fluorine resin and a water-soluble high molecule, as well as a solvent, the solvent being a mixture including water and alcohol. The positive electrode is manufactured by coating a positive electrode collector with the paste and drying the solvent. |
