| CPC H01M 50/211 (2021.01) [H01M 50/3425 (2021.01); H01M 50/507 (2021.01); H01M 10/0525 (2013.01); H01M 50/249 (2021.01)] | 19 Claims |
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1. An eco-friendly power source, comprising:
a plurality of battery cells each including an electrode assembly, a pouch accommodating the electrode assembly and an electrode tab protruding from the electrode assembly, the plurality of battery cells being stacked; and
a bus bar assembly coupled to the electrode tabs of the plurality of battery cells and configured to connect the plurality of battery cells,
wherein the bus bar assembly includes:
a main frame having a slit into which the electrode tab is inserted;
a bus bar positioned on an outer surface of the main frame and electrically connected to the electrode tab inserted into the slit;
a plurality of inner frames facing an inner surface of the main frame, the plurality of inner frames being spaced apart from each other in a direction in which the plurality of battery cells are stacked; and
a venting induction portion formed at an upper end portion of at least one of the plurality of inner frames,
wherein the electrode tab of each of the plurality of battery cells is located between two corresponding adjacent inner frames among the plurality of inner frames,
wherein the pouch includes a terrace portion coupled to the electrode tab, the terrace portion protruding towards the main frame from the electrode assembly,
wherein an upper portion of the terrace portion is positioned above the electrode tab and faces the venting induction portion, and
wherein the plurality of inner frames are located between the main frame and the electrode assemblies of the plurality of battery cells.
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