Restraining bands for battery pack

摘要

A battery pack (1) is constituted by arranging a plurality of prismatic battery modules (2) adjacently in a condition with coolant passages formed between battery modules and with their side faces of large area being arranged in superimposed manner, and are integrated by tying end plates (3, 4) arranged at both ends in the direction of arrangement of battery modules tightly together by restraining straps (5). A plurality of restraining straps (5) are arranged at suitable intervals on the long side face of battery pack and the restraining straps are constituted of strip of rectangular cross-sectional shape or by round rods or pipe members of circular cross-sectional shape whose dimension in the direction perpendicular to the long side face of battery pack is larger than the dimension in the parallel direction.