CPC H01M 50/531 (2021.01) [H01M 50/183 (2021.01); H01M 50/543 (2021.01)] | 22 Claims |
1. A battery pack, comprising:
a base substrate including first and second surfaces opposite to each other, an output terminal being on the first surface; and
a battery cell on the second surface of the base substrate, the battery cell including:
an accommodation portion separate from the base substrate and in which an electrode assembly is accommodated, and
a terrace portion that seals the accommodation portion and which is bent toward the base substrate, an electrode tab connected to the electrode assembly being drawn out of the terrace portion and electrically connected to the output terminal,
wherein a first main outer surface of the accommodation portion and the second surface of the base substrate are arranged parallel to each other such that the first main outer surface of the accommodation portion faces away from the electrode assembly and faces toward the base substrate, and is between the electrode assembly and the second surface of the base substrate.
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