| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery which is arranged so that even in the case of using a polymer electrolyte for an adhesion layer, a positive electrode-side current collector is not corroded, and the contact resistance of a protection layer serving to prevent the corrosion of the positive electrode-side current collector, and a positive electrode layer is reduced; and a method for manufacturing such a secondary battery.SOLUTION: Provided is a secondary battery comprising a current collector, a first protection layer, a second protection layer, a positive electrode layer, an electrolyte layer and a negative electrode layer which are stacked on a substrate in turn. The electrolyte layer includes a polymer electrolyte which can corrode the current collector as the secondary battery is charged and discharged. In the secondary battery, the first protection layer interferes with impregnation of the polymer electrolyte into the current collector; and the second protection layer has a hardness lower than that of the first protection layer.SELECTED DRAWING: Figure 1 |
