| 摘要 |
A fuse device for a lithium-ion battery and a lithium-ion battery using the fuse device. The fuse device includes a weak circuit portion within a conductive pattern located on a circuit board between an external input/output port and a bare cell. Instead of a conventional current fuse, a pattern of the circuit board is used as an overvoltage protection member. With a circuit board pattern instead of a conventional fuse, it is possible to utilize the maximum battery capacity. Further, a lead-free pattern can be used
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