Abstract: A heat exchanger including a first tube including a first flat plate and a first shaped plate connected to each other to form a first tube channel extending along a first tube extension axis, a second tube including a second flat plate and a second shaped plate connected to each other to form a second tube channel extending along a second tube extension axis, the first tube and the second tube being fixed to each other by an interconnector. The first tube channel forms a first primary arm and a second primary arm extending parallel to each other along the first tube extension axis. The first primary arm includes a first primary inner fin and the second primary arm includes a second primary inner fin.

Abstract: A heat exchanger including a first tube including a first flat plate and a first shaped plate connected to each other to form a first tube channel extending along a first tube extension axis, a second tube including a second flat plate and a second shaped plate connected to each other to form a second tube channel extending along a second tube extension axis, the first tube and the second tube being fixed to each other by an interconnector. The first tube channel forms a first primary arm and a second primary arm extending parallel to each other along the first tube extension axis. The first primary arm includes a first primary inner fin and the second primary arm includes a second primary inner fin.

Abstract: A heat exchanger plate, for thermal management of one or more battery packs, includes a base plate including a first core material and a lower coating layer. A channel plate is disposed adjacent to the base plate, the channel plate including at least one channel formed therein and a second core material different from the first core material. The base plate and channel plate combine to define an inlet, an outlet, and a conduit for propagating heat transfer fluid. The first core material is stronger than the second core material and the lower coating layer enhances brazing of the base plate to the channel plate. A related battery unit includes a battery pack and the heat exchanger plate. A related method includes forming the base plate and channel plate, brazing the base plate to the channel plate, and propagating heat transfer fluid between the inlet and outlet via the conduit.