Battery Performance Calorimeter

Battery Performance Calorimeter

A large volume calorimeter developed for research studies of larger (EV) cells and modules.

Product Description

The BPC is designed to quantify heat changes during charge and discharge – at conditions that simulate use of the battery. The BPC is not appropriate for stability, safety and abuse studies where battery disintegration is possible. The BPC has an upper temperature limit of 200°C but operates down to -30°C. Cryogenic operation is possible by linking to a refrigerated circulating bath. BPC has built in thermally guarded cycler connectors to minimise heat loss during cycling. The calorimeter has a depth of 50cm but its cross section is oval (50-65cm) maximising useful volume for large batteries. With heat detection sensitivity at 0.005°C/min the BPC has stable specific detection for heat release. In conjunction with the THT surface area (multipoint) heat measurement option, the BPC at well below 1 w/g detection, is ideally suited for gaining information appropriate for Thermal Management.

The BPC used with THT ARC software and electronics can be used within the adiabatic isothermal or isoperibolic modes. The choice of mode relates to the studies undertaken. Key options used with the BPC are the surface area (multipoint) option and the heat capacity option. The BPC complements the other calorimeters available from THT.


  • Two stage insulated calorimeter construction
  • Internal cooling coil (connection to chiller)
  • Internal dry gas purge (preventing ice formation)
  • External and internal current & voltage cable connection to 2-stage calorimeter (thermal diode design) – Allows connection to THT or user supplied Battery cycler or test system
  • Ancillary Ports Unit – Offers ability to implement options & functionality such as pressure measuring, inertion, video, heat capacity or surface temperature distribution measurement.
  • Electronic Cut Out – Software & Hardware cut out features will automate cooling.

Temperature Range

  • -30°C* to +120°C

Temperature Measurement

  • Type N thermocouple

Temperature Sensitivity

  • 0.01°C

Temperature Accuracy

  • 0.1-°C

Detection Sensitivity

  • From 0.01°C/min

Pressure Measurement

  • 0-10 bar

Pressure Accuracy

  • 0.5%


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