| 摘要 |
<p>A spacer (4) disposed between first and second battery cells (3) is provided with alternating first and second corrugated parts (25a, 25b). Said corrugated parts (25a, 25b) are provided with alternating first protruding parts (41) and second protruding parts (42) that repeat continuously in the vertical direction. Each first protruding part (41) protrudes towards the first battery cell (3) from the thicknesswise center (C) such that a gap that that serves as a cooling channel (32) is formed between said first protruding part and the second battery cell (3). Each second protruding part (42) protrudes towards the second battery cell (3) from the thicknesswise center (C) such that a gap that serves as a cooling channel (31) is formed between said second protruding part and the first battery cell (3). The first corrugated parts (25a) and the second corrugated parts (25b) differ in phase in terms of the arrangement of the first and second protruding parts (41, 42). A cooling medium flowing through the cooling channels (31, 32) contacts the first and second battery cells (3) in alternation, thereby equalizing cooling efficiency between the battery cells.</p> |
