| 摘要 |
<p>A lithium ion secondary battery in which the electric connection between an active material layer and a separator can be maintained without using a solid casing, and the higher energy density and the optional forming such as thinning are possible, and which is excellent in charge and discharge property and is large in battery capacity. This plate-shaped lamination-structure battery is equipped with layers of electrodes laminates where projections and recesses are made at at least two faces, a face adjoining a separator of a positive electrode active material layer and a negative electrode active material layer and a face opposed to both active material layers of the separator, and the three members are joined and stuck fast to one another by adhesive resin layers, and also electrolytes including lithium ions are retained in the separator and the space made by the junction face of the projection and the recesses for electrical connection.</p> |
