BTC-500
The BTC-500 (Battery Testing Calorimeter) is a floor-standing adiabatic calorimeter for the safe testing of thermal, electrical, and mechanical stress (abuse) tests on larger battery cells, and small modules.
BTC-500 | Large-scale, battery testing, adiabatic calorimete
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Types of Tests:
- Thermal stress: the BTC-500 enables a cell to be subjected to thermal stress under adiabatic conditions, allowing for assessment of its thermal stability and the characterization of thermal runaway events
- Electrical stress: Full integration with charge-discharge units supports testing of overcharging and discharging rates. External short circuits can also be applied. Resultant thermal runaway events can be characterized under “worst-case”, adiabatic conditions
- Mechanical stress: the BTC-500 can be equipped to perform nail penetration puncture tests, and allows for the characterization of the subsequent thermal runaway.
Evaluation of these tests facilitates the assessment of the safety performance of battery cells, enables the battery’s safe operating limits to be defined, and facilitates research and development into the mechanisms of thermal runaway and thermal propagation.
- Characterizing differences in cell performance
- Defining safe operating limits
- Exploring thermal runaways and thermal propagation
Additional capabilities to aid further mechanistic understanding of thermal propagation and thermal runaway include:
- Automated gas sampling for external analysis of vent gases
- Triggering of a cell at a specific position within a module to undergo thermal runaway
- Integrated camera to capture thermal events unfolding
- Thermal mapping (multipoint temperature measurement) of the battery
High data rate acquisition is also available for characterizing extremely fast reactions, for compliance with GB/T 36276-2018
Assessing the suitability of H.E.L's BTC-500 for small battery testing
As the market for increasingly powerful batteries such as lithium-ion batteries (LIBs) grows, safety testing remains paramount in the development phase to avoid unsafe situations such as fire-related incidents. Adiabatic calorimetry is an incredibly powerful tool for identifying the temperature value at which a battery can be operated. H.E.L. Group has tested this method with the BTC-500, a large-scale battery testing adiabatic calorimeter, using small pouch batteries (LP103035). Discover how the BTC-500 is adaptable for sensitively controlling and evaluating small battery cells despite its larger design.
Why is temperature so important to achieve optimum battery performance?
Battery-powered devices are everywhere within society, and this is only set to increase, especially as the electric vehicle market grows. This results in the demand for higher-powered, longer-lasting, better-performing batteries. With this comes the need for tightened safety regulations to ensure the safety of these ever-improving batteries is not compromised. This is where manufacturers have to take into account the importance of temperature when it comes to achieving the best possible performance and properties for their batteries. There are many factors to be considered regarding temperature and batteries, and here, H.E.L. Group discusses a few of these.
