A stacked plate heat exchanger for a thermal management system, comprising a stack of a plurality of heat exchanger plates, the plurality of heat exchanger plates are brazed or glued together along a direction of the stack, the plurality of heat exchanger plates delimit a first fluid path and a second fluid path, which are separated from one another in the stack, and adjacent to one another, such that the plurality of heat exchanger plates are configured to transfer thermal energy from a fluid in the first path to a fluid in the second path, or vice versa, further comprising a first reinforcing plate disposed on a first end of the stack, the first reinforcing plate is made from plastic.