| 摘要 |
Safety is ensured even when installed in mobile objects such as electric vehicles, deep-sea explorers, and so on. A battery module (10) provided with a plurality of battery packs (13) and a unit battery container (14) that houses these battery packs (13), wherein the unit battery container (14) includes a top-half housing (18), which is a lid, and a bottom-half housing (19) where the battery packs (13) are mounted, and wherein through-holes are formed in the bottom-half housing (19) so as to penetrate in the plate-thickness direction thereof at positions that face center portions of lower surfaces of the individual battery packs (13); branch pipes (23) are individually connected to the individual through-holes; these branch pipes (23) are connected to a single main pipe (25) that is provided with a liquid-leakage detecting sensor (24) at one end thereof; and the liquid-leakage detecting sensor (24) is connected to a liquid-leakage detecting device (27) via a signal cable (26). |
