| 摘要 |
PROBLEM TO BE SOLVED: To provide a closed type battery and its manufacturing method, in which electrolyte can be injected easily into the battery, the gas in the package can be evacuated effectively, sealed surely, stable quality can be maintained without degradation, and is excellent in electric characteristics. SOLUTION: This is a sealed battery manufactured by injecting an electrolyte into a package 7 enclosing wound electrode groups 1. On the inside surface of the package facing an edge 4 of the wound electrode group 1, there is provided an inlet and exhaust port 9 through which the electrolyte can be injected and the gas in the package can be evacuated as well. |
