Case for assembled battery, lead storage battery, assembled battery, storage battery system, method for improving heat dissipation of case for assembled battery, and method for improving deformation resistance of case for assembled battery

摘要

The assembled battery casing is used as at least one casing of each lead storage battery constituting the assembled battery when forming an assembled battery including a plurality of lead storage batteries, and a plurality of electrode plates are laminated. The opposed outer wall facing in the stacking direction of the electrode plates is provided with a non-contact recessed portion that forms a cavity with the outer wall of the housing of another adjacent storage battery. It has a concave shape that is recessed inward from the outer peripheral end.