BATTERY UNIT AND POWER SUPPLY DEVICE

摘要

Disclosed is a battery unit which comprises: a plurality of laminate batteries (32) that are electrically connected with each other; and a tray (33), on which the plurality of laminate batteries (32) are disposed, and which is stackable on another tray (33), on which another plurality of laminate batteries (32) are disposed. Respective outer peripheral portions of the plurality of laminate batteries (32) are provided with gas discharge portions (35) that respectively release the pressures generated inside the laminate batteries (32) to the outside. Each of the plurality of laminate batteries (32) is arranged such that the gas discharge portion (35) is located adjacent to the outer peripheral portion of the tray (33).