| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid injection device and liquid injection method for a nonaqueous secondary battery, facilitating pressure control at the inside of a battery can.SOLUTION: When pressure is reduced, a pressure adjustment mechanism including a pressure adjustment container 64 is used, the pressure adjustment container suppressing pressure fluctuations at the inside of a battery can 102 and in a vacuum line 67 that is a path for reducing pressure. |
