| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a structure in which, when a battery cell is temperature adjusted by a medium flowing along the periphery thereof, the medium can also securely adjusts the temperature of the weld part of an electrode tab projecting from the periphery of the battery cell.SOLUTION: A battery cell unit 2 is configured in such a manner that a pair of battery cells 14 are fitted to a frame 11 from both sides thereof and the space 14a between electrode tabs 14a projecting around these battery cells 14 is electrically connected by a bus bar 12 welded thereto. In such a battery cell unit 2, a coolant flows into an inlet 11a and flows out from an outlet 11b, as shown by arrowsγ,δ. A temperature adjustment medium deflection part 15 is provided on a frame 11 for orienting the coolant shown by the arrowδand also the coolant shown by the arrowγinto the box 13 of a frame 11 with the bus bar 12 fitted thereto and directing toward the bus bar 12. The coolant indicated by the arrowεmakes it possible to securely cool the weld part between the electrode tab 14a and the bus bar 12.</p> |
