| 摘要 |
<p>[Problem] To prevent temperature variation in multiple secondary battery cells (1) and to regulate the temperature uniformly. [Solution] A power supply device characterized by being equipped with: a battery stack (9) formed by stacking multiple secondary battery cells (1); metal end plates (3) arranged at both end faces of the battery stack (9) to fasten the battery stack (9) in the stacking direction; separators (2) having insulating properties and arranged between adjacent secondary battery cells (1); end separators (4) arranged between the end plates (3) and the secondary battery cells (1) located at either end of the battery stack (9); and a cooling plate (31), which is arranged so as to face one surface of the battery stack (9) and is connected in a heat-transferring state to the secondary battery cells (1) forming the battery stack (9), thereby cooling the secondary battery cells (1). In addition, air gaps (6) are provided in the joint surfaces between the end plates (3) and the end separators (4).</p> |
