| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery capable of improving performance thereof.SOLUTION: A secondary battery includes a positive electrode and a negative electrode, and an electrolyte disposed between the positive and negative electrodes. The electrolyte includes a positive electrode side electrolyte disposed on a positive electrode side, and a negative electrode side electrolyte disposed between the positive electrode side electrolyte and the negative electrode. The positive electrode side electrolyte contains an electrolyte and a binder having a fluorine-based copolymer containing tetrafluoroethylene, and the negative electrode side electrolyte contains an electrolyte and a butadiene rubber-based binder. |
