| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To accurately grasp abnormality of a single battery pack such as an internal short circuit and wire disconnection when a plurality of single battery packs are used as a battery pack. <P>SOLUTION: When a single battery pack 3 is constituted by connecting a plurality of single cells 2 in series, and the plurality of the single battery packs 3 are connected in parallel to each other to be used as a battery pack 3A, charge current values I<SB POS="POST">c</SB>of the respective single battery packs 3 are measured, and the abnormality of the specific single battery pack 3 is determined based on the relative comparison of the charge current values I<SB POS="POST">c</SB>of the respective measured single battery packs 3 or the difference between the charge current value I<SB POS="POST">c</SB>at the initial stage of use and the charge current value I<SB POS="POST">c</SB>after use passage. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
