Electrical connection structure for battery unit

摘要

Respective terminals (5, 6) of a plurality of cells (1) are mutually connected by means of coupling plates (12), and covering members (21) made from an elastic material covering the periphery of the terminals and coupling plates in such a manner that they are sealed with respect to the exterior of the battery are provided. Each covering member comprises tubular sections (22) which are pressed against the battery case surfaces (4) about the periphery of the terminals by means of the coupling plates, when the coupling plates are affixed tightly to the terminals, and a ring-shaped clamping section (25) which is clamped between a coupling plate and a fixing washer (8) surrounding the base portion of each terminal being provided on the inner circumference of each tubular section (22).