Applied Thermoelectric Solutions LLC

ParaThermic® Battery Thermal Management

ParaThermic® High-Heat Transfer (HHT) Batteries:
A Paradigm Shift for Battery Thermal Management

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A prismatic battery cell showing thermal temperature gradients from lack of thermal management or poor battery thermal management system (BTMS). The heat generation at the center of the battery makes the cell hotter toward the center of the cell and cooler toward the edges. But the temperature gradient pattern depends on the cooling boundary conditions. It depends on not only the location of the cooling or heating applied but also the cooling method such as air cooling, liquid cooling, refrigerant cooling or phase change.
Disassembled view of a ParaThermic® battery showing the battery cell, lid and ThermalConnect® partially outside the battery case. The ThermalConnect® bar thermally but not electrically interfaces with the battery cases to provide a cooling path between the battery case and in-plane heat transfer path of the battery cell. The battery thermal management system (BTMS) can then effectively interface with the battery case and remove heat with exceptional results.

What is ParaThermic® Battery Technology?

  • The patented technology found in ParaThermic® batteries facilitates the free movement of heat out of the battery cell.
  • ParaThermic® technology addresses the heat transfer limitation within the battery cell and enhances the efficiency of the thermal management system.
  • When compared to traditional batteries, this breakthrough technology is expected to exhibit a heat transfer improvement exceeding an order of magnitude (>10X).

Download the Peer Reviewed Journal Paper

Published in Applied Thermal Engineering

Download the Paper
A ThermalConnect® thermal bridge for ParaThermic® battery thermal management. The ThermalConnect® thermal bridge bar shows and electrically insulative and thermally conductive coating on the extended heat transfer surface that looks like an extruded finned heat sink.

Expected ParaThermic® Battery Benefits

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  • Enable Extreme Fast Charging (XFC) - Unlike conventional batteries, ParaThermic® batteries are expected to enable a heat removal rate that exceeds that required by XFC
  • Increased Energy Density - With enhanced thermal characteristics, ParaThermic® technology makes it possible to design a thicker battery cell. This results in a reduction in the number of required cells, battery cases, and increases energy density.
  • ParaThermic® batteries are expected to allow a considerable increase in battery life and reliability
  • Increased Safety - ParaThermic® batteries have the potential to mitigate or prevent battery thermal runaway
  • Reduced Cost - Improved battery thermal management has been shown to more than pay for itself.
  • Improved Cold Weather Performance - ParaThermic® batteries have the ability to allow for rapid battery warm-up
  • Increased Range - Lower ParaThermic® battery thermal resistance leads to lower thermal management system power consumption.

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