| 摘要 |
<p>PROBLEM TO BE SOLVED: To determine abnormality in a conductor and a fastening part.SOLUTION: In a battery pack, an electrode plate of a single battery and a bus bar are brought into pressure contact with each other by a nat and a voltage value in each pressure contact part between the electrode plate and the bus bar is measured (S2). Then, the potential differenceΔV between a pair of pressure contact parts to each bus bar is calculated from the measured voltage value (S8), and it is determined whether or not the potential differenceΔV exceeds a reference value VK (S10). Then, when the potential differenceΔV exceeds the reference value VK (S10: YES), it is determined that abnormality occurs in at least one of the pressure contact part and the bus bar (S12).</p> |
