Connection structure between unit cells

摘要

The connection structure between unit cells connects a plurality of batteries B1 and B2 in series with bottomed cylindrical battery cases 2 and 5 which function as electrode terminals on one side, sealing plates 3 which close the opening portions of the battery cases 2 and 5 which function as electrode terminals on another side, and the first ring 1a with a flange is conductively connected at a bottom portion of a battery case 2 of one battery B1, the second ring 1 b with a flange is conductively connected at an upper portion of the sealing plate 3 of another battery B2, and the first ring 1 a and the second ring 1 b are fitted.