| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery capable of ensuring settlement of a mixture to a collector and having excellent cycle characteristic. SOLUTION: A binder containing homopolymer having weight average molecular weight of 250,000 or more in homopolymer having weight average molecular weight of 150,000 to 220,000 is used as the binder for a positive electrode or a negative electrode. The mass of the homopolymer having the weight average molecular weight of 250,000 or more is 10 to 60 mass % for the mass of the homopolymer having the weight average molecular weight of 150,000 to 220,000. |
