Battery pack
AssigneeSK On Co., Ltd.
InventorsSeo Roh Rhee, Ji Eun Kang, Yang Kyu Choi
Life of this patent
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Abstract
A battery pack includes a pack housing, and at least one battery assembly accommodated in the pack housing. The battery assembly includes a first cell stack and a second cell stack in each of which a plurality of battery cells are stacked, and a busbar assembly electrically connecting the plurality of battery cells to each other. The busbar assembly includes a first coupling portion coupled to the first cell stack, a second coupling portion coupled to the second cell stack, and a connection portion connecting the first coupling portion and the second coupling portion to each other.
Claims17
A battery pack comprising:
- a pack housing including an inner space and a partition wall member partitioning the inner space into multiple accommodating spaces;
- and
- at least one battery assembly accommodated in the pack housing,
- wherein the partition wall member includes a venting portion,
- wherein the battery assembly includes:
- a first cell stack and a second cell stack in each of which a plurality of battery cells are stacked and are disposed in different accommodating spaces, respectively, and
- a busbar assembly electrically connecting the plurality of battery cells to each other,
- wherein the busbar assembly includes:
- a first coupling portion coupled to the first cell stack,
- a second coupling portion coupled to the second cell stack, and
- a connection portion connecting the first coupling portion and the second coupling portion to each other,
- wherein the connection portion includes a breakable portion formed of a material different from that of the first coupling portion and the second coupling portion, and
- wherein the breakable portion is disposed to oppose the venting portion, and is melted by high-temperature and high-pressure gas discharged from the venting portion or by an overcurrent, thereby cutting off an electrical connection between the first cell stack and the second cell stack.
A battery pack comprising:
- a pack housing including a partition wall member partitioning an inner space into multiple accommodating spaces;
- and
- at least one battery assembly accommodated in the accommodating spaces,
- wherein the battery assembly includes:
- a first cell stack and a second cell stack in which a plurality of battery cells are stacked and are disposed in different accommodating spaces, respectively, and
- a busbar assembly to which the first cell stack and the second cell stack are fixedly coupled,
- wherein the partition wall member includes a venting portion, and is disposed to cross between the first cell stack and the second cell stack, and
- wherein the busbar assembly includes a bridge busbar including a breakable portion and an insertion groove into which the partition wall member is inserted,
- wherein the breakable portion is disposed to oppose the venting portion, and is melted by high-temperature and high-pressure gas discharged from the venting portion, thereby cutting off electrical insulation between the first cell stack and the second cell stack.
Dependencies are inferred from the claim text.