| abstract |
The battery includes a positive electrode current collector, a positive electrode active material layer provided on the positive electrode current collector, and a positive electrode having a positive electrode current collector exposed portion where the positive electrode current collector is exposed, a negative electrode current collector, and a negative electrode current collector. A negative electrode having a negative electrode active material layer provided on the negative electrode current collector and having an exposed negative electrode current collector with the negative electrode current collector exposed, a separator provided between the positive electrode and the negative electrode, and a positive electrode and a separator. An intermediate layer provided between the space and at least one of the negative electrode and the separator and containing at least one of a fluororesin and particles is provided, and the positive electrode current collector exposed portion and the negative electrode current collector exposed portion provide the separator. A positive electrode, a negative electrode, and a separator are laminated so as to face each other, and the positive electrode active material layer contains a fluorine-based binder having a melting point of 166 ° C. or lower and a conductive agent, and is fluorine-based in the positive electrode active material layer. The content of the binder is 0.5% by mass or more and 2.8% by mass or less, and the content of the conductive agent in the positive electrode active material layer is 0.3% by mass or more and 2.8% by mass or less. [Selection diagram] Fig. 2 |