| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium secondary battery using a gelled electrolyte to restrain a trouble such as liquid leakage, having high potential and high energy density, and excellent in capacity and a cycle characteristic. SOLUTION: A positive electrode and/or a negative electrode contain a skeletal polymer, additionally to a gelled electrolyte polymer formed by thermal polymarization, having a solubility parameter different by 0.2 (cal/cc)<0.5> or more from a solubility parameter of a solvent in an electrolyte, in a lithium secondary battery in which the positive electrode and the negative electrode are layered via the electrolyte layer to be stored in a case, in which the positive electrode and/or the negative electrode are constituted of an active material containing layer capable of storing and releasing lithium ion provided on a collector and an ion-migrating layer formed inside the layer, and in which the ion-migrating layer and the electrolyte layer are composed of the gelled electrolyte. |
