17 - THERMAL RUNAWAY EMISSION ANALYSIS OF BATTERIES

We analyse up to 20 types of gases

Battery Thermal Event Characterization

Our thermal runaway emission analysis facility tests prismatic and pouch cells (up to 310x270 mm and 400x700 mm) and small battery stacks in a pressure-tight 485l container rated to 40 bar with 55 bar safety limit. Testing triggers thermal events through overheating, overcharging, or nail penetration while monitoring comprehensive gas emissions including hydrogen, carbon oxides, hydrocarbons, and aldehydes. Temperature measurements track conditions directly on cells, inside gases, and reactor surfaces using up to 60 thermocouples.

Advanced Monitoring & Safety Systems

Our facility employs sophisticated data acquisition systems from Dewesoft and National Instruments with CAN/LIN BMS communication capabilities. Comprehensive measurements include voltage, temperature, pressure, and residual oxygen monitoring throughout thermal events. All testing complies with PV8450 standards and incorporates robust safety protection systems. Samples are stored in climate-controlled secure containers, and we support special customer requirements including custom LabView control systems.

SCOPE

Test samples: prismatic or pouch battery cells, small battery stacks
Testing of the behavior during thermal runaway, triggered by overheating, overcharging or nail penetration
Gas analyses: Hydrogen, Oxygen, Nitrogen, Carbon monoxide, Carbon dioxide, Methane, Ethane, Ethene,
Ethine, Propane, Propene, Propine, Butane, Carbonyl fluoride, Formaldehyde, Acetaldehyde, Propionaldehyde, Butyraldehyde, Valeraldehyde
Temperature measurements: directly on the battery cell; released gases, inside the reactor; external surface of the reactor
Pressure development inside reactor
Voltage measurement on the tested battery

EQUIPMENT

Pressure-tight container: volume 485 l; max. pressure measurement range 40 bar, 10 bar; pressure safety limit 55 bar
Max sample dimensions (adaptive): prismatic cell up to 310 × 270 mm; pouch cell up to 400 × 700 mm, cylindrical cells
Thermal measurement up to 60 pcs thermocouples
Voltage measurement
Measurement of residual oxygen insidethe container during the inertization

BENEFITS

DAQ systems Dewesoft, National Instruments, Lab View
CAN/LIN communication with BMS, CMS
Safety protection system
Support of special customer requirements (e.g. LabView controlling or different setup), additonal measuring channels
Battery test samples storage clima-controlled and secures container
Ecological scrapping of batteries after test

STANDARDS