CPC H01M 10/6568 (2015.04) [H01M 50/171 (2021.01); H01M 50/209 (2021.01); H01M 50/507 (2021.01)] | 20 Claims |
1. A battery module for immersion cooling using a thermal liquid, the battery module comprising:
prismatic battery cells stacked along a primary axis of the battery module and comprising top surfaces, bottom surfaces opposite to top surfaces, side surfaces extending between the top surfaces and the bottom surfaces, and cell terminals positioned on the top surfaces;
bus bars forming a first bus-bar row and a second bus-bar row and interconnecting the cell terminals;
a top cover attached to the prismatic battery cells, facing the top surfaces, and forming a first top fluid channel and a second top fluid channel for flowing the thermal liquid, wherein:
the first top fluid channel is fluidically open to each of the prismatic battery cells thereby allowing the thermal liquid to directly contact each of the prismatic battery cells while flowing through the first top fluid channel, and
the second top fluid channel is fluidically open to each of the prismatic battery cells thereby allowing the thermal liquid to directly contact each of the prismatic battery cells while flowing through the second top fluid channel;
a bottom cover attached to the prismatic battery cells, facing the bottom surfaces, and forming a first bottom fluid channel and a second bottom fluid channel for flowing the thermal liquid, wherein:
the first bottom fluid channel is fluidically open to each of the prismatic battery cells thereby allowing the thermal liquid to directly contact each of the prismatic battery cells while flowing through the first bottom fluid channel, and
the second bottom fluid channel is fluidically open to each of the prismatic battery cells thereby allowing the thermal liquid to directly contact each of the prismatic battery cells while flowing through the second bottom fluid channel;
a first end plate attached to both the top cover and the bottom cover and comprising a first fluid port and a second fluid port, wherein:
the first fluid port is fluidically coupled to both the first top fluid channel and the first bottom fluid channel such that the thermal liquid is distributed to the first top fluid channel and the first bottom fluid channel upon entering the first fluid port, and
the second fluid port is fluidically coupled to both the second top fluid channel and the second bottom fluid channel such that the thermal liquid is collected from the second top fluid channel and the second bottom fluid channel prior to leaving the battery module through the second fluid port; and
a second end plate attached to both the top cover and the bottom cover, wherein:
the second end plate fluidically interconnects the first top fluid channel and the second top fluid channel, and, separately,
the second end plate fluidically interconnects the first bottom fluid channel and the second bottom fluid channel.
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