| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery pack in which surface pressure applied on each secondary battery can be made uniform. <P>SOLUTION: The battery pack 100 comprises module laminates 40 in which sub modules 30a-30k arranging a plurality of secondary batteries 10 on the same plane are laminated a plurality of pieces interposing an intermediate plate 41, a pair of end plates 21a, 22a laminated respectively at the uppermost stage of the module laminates 40 and the lowermost stage of the module laminates 40, and a rod 51 and a nut 52 which pressurize a plurality of secondary batteries 10 through the end plates 21a, 22a. The end plates 21a, 22a are formed so that the rigidity at the center of the pressure established based on each pressurizing point of the end plate pressurized by the rod 51 and nut 52 may become highest. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
