| 摘要 |
Provided is a lithium-ion secondary battery which can exhibit a stable cell performance, which has a high degree of freedom of choice of its shape, an improved output density, an improved flexural strength and a reduced size, which can be produced by an apparatus simplified as far as possible, with a reduced cycle time and at a reduced cost. The lithium-ion secondary battery has a laminar body wherein a positive electrode layer and a negative electrode layer are laminated on respective opposite surfaces of a solid electrolyte layer. The positive electrode layer is constituted by a first vapor-deposited polymer film containing a positive electrode active substance, and the negative electrode layer is constituted by a second vapor-deposited polymer film containing a negative electrode active substance, while the solid electrolyte layer is constituted by a third vapor-deposited polymer film having lithium-ion conductivity. |
