| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery pack which enables more effective cooling in which a cooling passage for a cooling medium is formed between battery cells. <P>SOLUTION: In a battery pack, multiple first ribs 123A and multiple second ribs 123B are respectively formed on a surface 121A on one side of battery cases 120, which face each other in the lamination direction, and on a surface 121B on the other side. The multiple first ribs 123A and the multiple second ribs 123B respectively protrude toward the surfaces 121B and 121A of the facing counter battery cases 120 and extend along its surfaces 121A and 121B so as to be arranged parallel to each other. In a cooling passage 140, the first ribs 123A intersect with the second ribs 123B, and a protruding distal end part 123a of each first rib 123A is in contact with a protruding distal end part 123b of each second rib 123B. <P>COPYRIGHT: (C)2012,JPO&INPIT |
