BATTERY PACK

Organization Name

Inventor(s)

BATTERY PACK

This abstract first appeared for US patent application 20240429565 titled 'BATTERY PACK

Original Abstract Submitted

a battery pack is provided and includes a plurality of cylindrical cells arranged in a manner that a plurality of electrode terminals face a same direction, a cell holder made from resin that holds arrangement of a plurality of the cylindrical cells, a tab extending in a planar direction parallel to a direction orthogonal to a longitudinal direction of the cylindrical cell, and a case. the cell holder includes a holder main body in which a plurality of cell accommodation portions are provided in the planar direction and a bottom wall extending in the planar direction, and a through hole penetrating the bottom wall, the bottom wall includes a plurality of lid walls covering the cell accommodation portion, and a plurality of annular walls, the tab includes a plurality of welded portions which are welded to the electrode terminal through the through hole, a wiring portion that extends in the planar direction from the welded portion and connects the welded portions to each other, at least one of the lid wall and the wiring portion is provided with a thin portion having small thickness in the longitudinal direction, and the thin portion is arranged on an inner side of the annular wall as viewed from the longitudinal direction.