iso-BTC: A Bench-Top, Battery Performance Testing, Isothermal Calorimeter


The iso-BTC (Battery Testing Calorimeter) is an isothermal calorimeter designed for the characterization of thermal behavior and electrical performance of battery cells under normal and extended use conditions. It supports a range of adaptors which allows a wide range of cell formats to be analyzed.

The iso-BTC supports the full integration of a charge-discharge unit, allowing for the repeated, automated cycling of battery cells under a range of operating conditions, while concurrently recording both the battery’s electrical performance and the heat evolved.  It can also conduct accelerated aging tests, allowing the effect of battery aging on cell performance to be investigated. Battery chemistry, electrode composition, and battery cell type can also be investigated within cell development using the iso-BTC.

Thermal mapping (multipoint temperature measurement) allows the user to identify regions of a battery that generate greater thermal energy to be highlighted.  Along with the thermal behavior characterization of the battery cell over a range of temperatures and (dis)charge rates, this information can be used to inform effective and targeted thermal management strategies within the battery module and pack.

Features and Options

Type of Test 

  • Performance testing
    • Characterizing performance under normal and abnormal use.
    • Aging and lifetime performance testing.
  • Battery behavior as a function of charge/discharging rate and temperature
    • Heat release profiles.
    • Battery efficiency profiles.
    • Battery charging/discharging capacity profiles.

Battery/Sample Size 

  • Coin cells, small pouch cells, and cylindrical cells. Battery adaptor selection for testing on cylindrical cells available.
  • Maximum chamber volume 250 mm wide, 250 mm deep, 80 mm high
    • Test sample volume will include any necessary adaptor volume.

Temperature Control 

  • -20 °C to 90 °C as standard
  • Optional: Temperatures starting from -40 °C

Intelligent Software Control and Analysis 

  • labCONSOL software control enables regular data logging, multi-step recipes, parameter control, and feedback loops. The software adds a responsive intelligence to the iso-BTC system and still delivers an intuitive interface that needs only minimal training to run quickly.

Safety Features 

  • Automated shutdown procedures if a safety condition is exceeded to ensure user safety
  • N2 purge for when operating under sub-ambient conditions
  • Multipoint sample temperature measurement
  • Automatic hardware and software fail-safes are installed on every system

Other Equipment by this Supplier

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.