| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a battery pack having a structure which restrains temperature difference between a plurality of batteries stored in an envelope and prevents being affected by environmental effects, and has stable performance and quality. SOLUTION: This battery pack is provided with an envelope for 12 storing a battery module 11 in it, and a heat conductive sheet 17 having a flexible insulating property, which is placed between the inner surface of the envelop and the peripheral surface of the battery module. A lid body 14 constituting the envelop especially, is in a corrugated plate shape, where a recessed part along the peripheral surface configuration of the battery module is formed to include no corner whose curvature changes rapidly. The envelope has an airtight sealing structure, and its inside is filled with inert gas and insulating liquid.</p> |
