| CPC H01M 50/213 (2021.01) [H01M 10/48 (2013.01); H01M 10/6556 (2015.04); H01M 50/284 (2021.01); H01M 50/519 (2021.01); H01M 50/569 (2021.01)] | 25 Claims |
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1. A battery pack, comprising:
a plurality of battery cells, each battery cell including a first end portion and a second end portion in a length direction thereof;
a cell holder having a first surface through which portions of the first end portions of the plurality of battery cells are exposed in the length direction of the plurality of battery cells;
a circuit board having a first surface through which portions of the first end portions of the plurality of battery cells and a portion of the first surface of the cell holder are exposed;
measurement members connecting the plurality of battery cells to the circuit board; and
a photocurable adhesive surrounding the measurement members,
wherein the first end portions of the plurality of battery cells, the first surface of the cell holder, and the first surface of the circuit board are arranged in a stepped manner at least partially exposed to an outside of the circuit board in the length direction of the plurality of battery cells and are at least partially covered by the photocurable adhesive,
wherein the cell holder includes at least one hollow protrusion surrounding a cooling passage connected to a gap between outer peripheral surfaces of adjacent ones of the first end portions.
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