CONFORMAL FLUID-COOLED HEAT EXCHANGER FOR BATTERY

According to an example embodiment is a heat exchanger for a battery unit having a first battery module and a second battery module, the first battery module comprising a plurality of battery cell containers each housing at least one battery cell, the second battery module comprising a plurality of battery cells containers each housing at least one battery cell, the first battery module and second battery module being spaced apart with a plurality of battery cell containers of the first battery module being located in spaced apart opposition to a respective battery cell containers of the second battery module. The heat exchanger definines a plurality of fluid flow chambers each located within a respective fluid flow region for transmitting a heat exchanger fluid, each of the fluid flow regions being configured to be positioned between and engage a respective battery cell container of the first battery module and a respective battery cell container of the second battery module, each of the fluid flow regions being dimensionally compliant independently of the other fluid flow regions to conform to a spacing of the battery cell containers between which the fluid flow region is positioned