Battery Test Benches

  Large climate chamber Copyright: © RWTH Aachen | TME

The CMP battery test bench allows investigating cells and entire vehicle high-voltage batteries under variable thermal conditions in a secure environment with the use of the latest pyro bubbles extinguishing devices.

In this test environment, it is possible to test the batteries in different electrical stress situations which can be implemented as a differentiated load cycles under defined boundary conditions.



Technical data of the battery laboratory

High voltage area Low voltage range


150 kW
0 – 800 V
+/- 500 A
DC Source/Sink
Activation time
Control time: < 250 µs
2 channels 0 – 60 V per +/- 60 A, 3.6 kW
4 channels 0 – 8 V per +/- 240 A, 1.92 kW

Extendable according to requirements

Extendable according to requirements

Climate chamber Temperature cabinets
Test chamber volume
Temperature range
Heat compensation
Humidity range
Dew point area
2500 Litre
to -40 °C
10 K/min
10 kW at -20 °C
10 % r.F. to 98 % r.F.
from +5 °C

2x test chamber volume
Temperature range

228 Litre
to -40 °C
2x test chamber volume
Temperature range
247 Litre
to -5 °C

  Simulation and Validation Process Copyright: © RWTH Aachen | TME

Simulation and Validation Process

For a continuous simulation and validation process while researching new battery technologies, different detail levels of the underlying models are needed. This directly influences the boundary conditions for test bench measurements. There are both investigations at the cellular level - Electrochemical / material, lumped parameter models - as well as module-level possible.

  Combined Power and Energy Battery Copyright: © RWTH Aachen | TME

Combined Power and Energy Battery

By connecting the power and energy cells by a current regulator, it is possible to achieve a weight and volume reduction. In addition, a high charge and discharge capacity is realized. The chosen combination reduces demands on the cooling system and a scalable electric range will be reached.