Isothermal Battery Calorimeter

Isothermal Battery Calorimeter
Cell format: Cylindrical

Measure heat release under isothermal conditions during charge/discharge protocols. Designed for cylindrical cells.

Isothermal Battery Calorimeter

The IBC provides accurate and easy testing of heat output from charging and discharging a single battery.

Heat occurring during the charging and discharging of batteries is largely due to their internal impedance. Characterisation of this heat at different operating temperatures is vital for efficient thermal management of cells in packs or modules.

Isothermal calorimeters have higher sensitivity that adiabatic calorimeters. Their temperature range is limited and they are not appropriate for safety abuse testing when battery disintegration or high temperatures may result.

Cell format: Cylindrical

Study battery

  • Stability
  • Performance
  • Efficiency
  • Life cycle

Quantify heat release...
under applied load conditions with connection to external cycler.

Measure change of heat release with...

• Chemistry modification           • Applied load
• Size and shape                     • State of charge
• Environmental temperature     • Age


  • Accurate heat measurement down to 10µW over temperature range
  • Wide dynamic range up to 9W
  • Small footprint, no ancillary cooling equipment required
  • Windows based control software, USB connection


Isothermal Battery Calorimeter Data

1.5 AH Lithium Battery Charge and Discharge Cycle 1A


Max Temperature (°C) 80
Min Temperature (°C) -5
Temperature Stability (°C) 0.002
Refrigerated recirculator required No
Calorimeter chamber diameter (mm) 35 (customisable)
Calorimeter chamber depth (mm) 70 (customisable)
Number of sample chambers 1
Number of reference chambers 0
RMS Noise
under controlled ambient conditions
Max heat detection 9W
Inegrated Cycler No
Min Current Defined by cycler
Max Current 20A
Current resolution Defined by cycler
Internal wiring (force) 8 ga (3.3mm)
Internal wiring (sense) 20 ga (0.8mm)
Heat capacity measurement capability Yes
Heat cut out Yes
N2 Purge Yes
External cycler terminals Yes
Footprint (Width x Height x Depth) 10 x 12 x 16 inch
25 x 30 x 41 cm
Weight 22 lbs
10 kg

*Specification above subject to change

A full range of spares and consumables are available. Any user requiring more information please complete the request form.

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I'm interested in the following services

ES-Accelerating Rate Calorimeter (ES-ARC)
EV-Accelerating Rate Calorimeter (EV-ARC)
EV+Accelerating Rate Calorimeter (EV+ARC)
Battery Performance Calorimeter (BPC)
Rapid Screening Device (RSD)
Isothermal Battery Calorimeter (IBC)
Micro Reaction Calorimeter (µRC)
Ultra Stable Isothermal Calorimeter (UIC)
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