| 摘要 |
PROBLEM TO BE SOLVED: To detect an anomaly in a battery pack, as to a battery pack equipped with a plurality of battery cells. SOLUTION: This method for detecting an anomaly in a battery pack 2 equipped with a plurality of battery cells 41a, 41b, 42a, 42b, 43a, and 43b, connected in series or in parallel, includes a process for detecting whether or not impedance of at least one battery cell of the battery cells deviates from a predetermined range. Further, this method includes a process for detecting whether or not a change in impedance of at least one battery cell of the battery cells exceeds a predetermined range. COPYRIGHT: (C)2007,JPO&INPIT
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