| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed battery in which poor welding at the time of butt-welding a liquid injection hole to a sealing member for sealing the liquid injection hole is prevented from occurring.SOLUTION: In a sealed battery 10 sealed by butt-welding a liquid injection hole 14 to a sealing lid 15 for sealing the liquid injection hole 14, a flow channel 11 penetrating from a welding point to a small-diameter part 14b, which is an opening of the liquid injection hole 14, is formed in at least part of a section where a rear surface 15a of the sealing lid 15 and a lid 2b provided with the liquid injection hole 14 face each other. The flow channel 11 is formed by a groove 15b arranged on the rear surface 15a of the sealing lid 15. |
