| 摘要 |
PURPOSE:To prevent deterioration in the performance and the life of a cell caused by the leakage of different gas from the end of electrode by covering a gas passage in the vicinity of the end of electrode with a gas impermeable film. CONSTITUTION:An end seal 5 which prevents gas leakage through the end 2b is formed at the end 2b of an electrode 2. A gas passage 2a in the vicinity of the end 2b of at least one electrode 2 of electrodes 2, 3 is covered with a gas impermeable film 6. Even if different gas is leaked into the gas passage 2a in the vicinity of the electrode end 2b from the interface between a separator 4 and the electrode end 2b, since its adverse effect is prevented by the gas impermeable film 6, the deterioration in the performance and the life of the cell caused by the leakage of the different gas can be prevented. |
