CPC H01M 50/284 (2021.01) [H01M 50/507 (2021.01); H01M 50/519 (2021.01)] | 18 Claims |
1. A flexible printed circuit board comprising:
a base film including a first surface and a second surface opposite to the first surface; and
multiple wires formed on the base film, the multiple wires including a first set of wires formed on the first surface and a second set of wires formed on the second surface;
wherein, among the first set of wires and the second set of wires, only the first set of wires is provided in each portion of the flexible printed circuit board configured to be attached to a battery including multiple arrayed cells,
at at least part of a first region apart from a second region, the second region including each portion of the flexible printed circuit board configured to be attached to the battery, both the first set of wires and the second set of wires are provided, and
the flexible printed circuit board further includes at least one conductive via, each one of the at least one conductive via being configured to electrically connect one of the first set of wires to one of the second set of wires.
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