| 摘要 |
The battery pack has a battery cell 11, a circuit board 22 disposed along one end-plane 11a of the battery cell 11,and a circuit board holder 23 that intervenes between the circuit board 22 and the battery cell 11 end-plane 11a. The circuit board holder 23 is provided with a main body that holds the circuit board 22 and four projections 23h-23k protruding towards the end-plane 11a of the battery cell 11 (in the negative direction along the X-axis). Further, the projections 23h-23k on the circuit board holder 23 have lower mechanical strength than the main body and function as buffers to absorb dimension variation in the battery cell 11. Specifically, the end regions of the projections 23h-23k that contact an insulating board 12 disposed on top of the battery cell 11 end-plane 11a are squashed down by just an amount to absorb the battery cell 11 dimension variation.
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