摘要 |
The positive electrode, electrolyte, and negative electrode of a cell are improved in order to obtain a high-performance cell with a long-term reliability and excellent charge and discharge cycle characteristics, particularly after a long-term storage. Electrolytic layers are formed directly on the surfaces of the positive and negative electrodes. At least one of the positive and negative electrodes contains a binding agent. The electrolytic layer is made of an ion conductive high molecular compound containing one or more kinds of ionic compounds as a solution. |