| 摘要 |
PROBLEM TO BE SOLVED: To surely weld a group of electrodes and a collecting boards together in a battery having a non-sintered type electrode. SOLUTION: A battery is provided with a group of electrodes 4 comprising a first electrode 1 and a second electrode 2 constructed of a positive electrode and a negative electrode layered via a separator 3; an armor can 5 for housing the group of electrodes 4; and a collecting board 6 electrically connected to the first electrode and electrically connected to one side of a terminal. The first electrode 1 is a non-sintered type electrode of a metallic three-dimensional porous base board 9 filled with an active material, and provided with a band type connection part 7 the base board 9 exposed. The band type connection part 7 is welded a metallic thin plate 10 and is welded to a plurality of parts in the collecting board 6 so as to be electrically connected. The metallic thin plate 10 is 0.07 mm or more thick and thinner than 80% of that of the first electrode 1, with Vickers hardness ranging from 50 to 250. Alternatively, the collecting board 6 has Vickers hardness ranging from 50 to 250 and thickness of 0.1-1.5 mm. |
