| 摘要 |
A battery device housing a large number of secondary batteries, in which the batteries can be cooled efficiently as the effect of excessive vibrations or shock or changes in environmental conditions on the housed secondary batteries is suppressed and as sufficient air-tightness is maintained. The battery device includes a modular casing 13 having a battery housing section 45 in its inside and a large number of terminal openings 46, 47, an outer casing member 11 for housing the modular casing 13 in an accommodating space section 11a, and a large number of secondary batteries 12 housed in the battery housing section 45 so that terminal sections 12a, 12b are exposed to outside through terminal openings 46, 47. The secondary batteries 12 are connected in series with one another. The modular casing 13 is housed in the outer casing member 11 with a gap p between facing outer and inner peripheries with the interposition of mounting portions 54, 65. The modular casing 13 is provided with a suction unit 15 and an exhaust section 16 for supplying and exhausting cooling air to or from the battery housing section 45. The secondary batteries 12 are accommodated in the battery device so that both ends of the batteries are cemented with an adhesive 42 to the terminal openings 46, 47 and so that the outer peripheries of the batteries face the inner surface of the battery housing section 45 with a gap in-between.
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