| 摘要 |
PROBLEM TO BE SOLVED: To suppress variation in temperature between respective batteries in a power supply device that includes first and second battery modules each configured by laminating a plurality of batteries.SOLUTION: A power supply device 100 comprises: a first battery module 1 and a second battery module 2 each configured by laminating a plurality of single batteries 10; a case 50 for housing the battery modules 1 and 2; and a cooling structure that includes a cooling medium supply passage S2 extending in a battery lamination direction X of each battery module 1, 2, and a cooling medium passage S3 formed between the laminated batteries 10. The first and second battery modules 1 and 2 are arranged so that parts of cooling medium exhausted from respective cooling medium passages S3 of the first and second battery modules 1 and 2 are opposed to and flow against each other. In addition, the cooling medium exhausted from the first and second battery modules 1 and 2 is diffused and stays in a space formed between the battery modules 1 and 2 and the case, and then, is exhausted from an exhaust port 59. |
