Battery Cold Plate

BatteryCP

Aspen developed a direct expansion cold plate to cool batteries used in electric vehicles.

  • Two Aspen compressors used in parallel to cool over 500 W
  • Direct expansion cold plate ensures uniform surface temperature (10°C) across the battery cold plate in ambient temperatures up to 40°C.
  • Compact, lightweight, and rugged design

System Description

Aspen was approached by a customer to develop a cold plate which generated a high heat flux from the surface of batteries for electric vehicles. This system was built using two compressors to achieve the desired heat removal. The compressors run in parallel, but share the same condenser, evaporator, and expansion valve. On electric vehicle applications where the batteries represent a significant weight, the size and integration of a cooling system is critical to deployment of a practical solution.  Using 2 Aspen compressors as opposed to a single larger compressor offers a great advantage in terms of configuration, size, and weight.

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