Cell with terminals and circuit substrate

摘要

In a cell assembly, a cell has terminal elements for attachment to mating terminal elements. Each of the terminal elements has an engaging portion with peripheral ends bent to form an interior region and an first surface with an opening and a projection projecting partially into the interior region from a second surface. The material used has a wall thickness in the range of 0.15-10 mm, a Vickers hardness of 250-450 HV and a spring limit value of 30-60 kgf/mm2. Alternatively, a circuit substrate is provided with such engaging portions.