GROUP CELL

摘要

PROBLEM TO BE SOLVED: To provide a group cell which has low resistance loss in connecting single cells each other and can connect the single cells at a low cost and moreover with high workability. SOLUTION: A group cell is formed, by connecting serially at least two single cells 3, an adjacent single cell 3 being connected serially by inserting a convex portion 42 of a convex-shaped terminal 4 made to penetrate a sidewall 311 of a battery jar 31 of one single cell 3 in a concave portion 53 of a concave- shaped terminal 5 made to penetrate a sidewall 312 of a battery jar 311 of the other single cell 3.