BATTCAVE - Virtual Vehicle

WHAT WE OFFER

Advanced Battery Safety Tests for Research & Industry

We test single cells and cell-stacks (modules). Our tests reveal electrical, gas, temperature and propagation characteristics of thermal runaway. We can trigger cells with over-temperature, over-charge and nail-penetration and custom setups.

We test according to standards and according to customer needs.

BOOK A TEST

Our Project Process

Initial testing request by customer by email

Sign NDA

Discuss testing-details in a web-meeting

Testing offer & Puchase order

Setup project-sharepoint

Customer sends cells for testing

Test configuration approval & Test execution

Share report, fotos, videos, raw data with customer

Customer signs acceptance confirmation

Invoice

Take a Tour

BATTCAVE

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360° Webtour

We Work

quantitative

comprehensive

industry relevant

Our Test – Procedure

We assemble the test-setups according to customer needs. In most cases one cell is sandwiched between pressure plates, heaters and temperature-sensing layers. Optionally, nail-penetration machine is attached.

Then we place the assembly into one of the two pressure-tight reactors, set the SOC, set required atmosphere (N2 or air) and execute the test: We initiate thermal-runaway (TR) with over-temperature, hot-spot, over-charge, nail-penetration or custom trigger.
During TR the cell releases heat and gas. The reaction is monitored with multiple sensors: temperatures, voltage, pressure, video/sound feed, comprehensive gas-composition analysis with GC and FTIR.

After the test we remove the cell and asses the cell-damage: we measure cell-mass loss, document cell-case damage evidence and take particle samples for analysis.

Finally, we analyze measured data and compile a report.

What you get

Foto-documentation

Cell(s) before and after test
Test assembly before test and after test

Video

Video of the main test execution from inside reactor

Sensor time-series data

Voltage/current, up to 60 temperatures, pressures
custom sensors

Gas composition

Composition of major components in vol%

Report

Semi-automatic analysis
Semi-automatic generation of the test-report
Measured raw-data

Battery-safety stats

test benches

+ 1000

tests since 2011

Significance

Testing for safer, compliant battery use

Our test results help to find the right cell for the application. The tests help to comply with regulations, to stop thermal runaway propagation and to mitigate explosion and intoxication risk.

We can assess implementation of early warning and test expanded operation envelope for critical situations where the battery can not be simply switched off.

Application

Automotive, electric vehicles
Offroad, electrify mining and agriculture
Aerospace, electric VTOLs and planes
Maritime, electric boats and ships
Energy Storage Systems ESS

Analysis and report

+ 50

Parameters

+ 17

Plots

+ 50

Pages

Gas Analysis

During TR the Li-ion cells release burnable and toxic gas. We quantify the gas-composition with calibrated Inficon microGC Fusion (GC) and Bruker MATRIX-MG01 (FTIR) spectrometer.