| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated electric double layer capacitor from which its shared voltage can be detected and, accordingly, the remaining serviced lives and exchanging timing of its electric double layers can be estimated. SOLUTION: Bipolar current collecting electrodes 11 having shared voltage detecting tabs 20 for detecting the shared voltage of this capacitor are laminated upon another through a rubber frame 30. At the same time, in order to release the stress concentration which occurs when bending stresses are generated in the tabs 20, the frame 30 is formed to have such a ridge-shaped or curved end face that becomes lower in height as going toward its edge section by using ethylene-propylene rubber. |
