Acquisition of an automated battery cell test station (Battery Test Bench)

Scope of investment project

Li-ion batteries are rechargeable energy storage systems, which can be found nowadays in different applications, from portable electronics to automotive. Due to their high energy density, Li-ion systems are gaining ground in applications such as electro-mobility or as buffers for power system networks.

Li-ion batteries have attractive characteristics with respect to other secondary batteries as the lack of memory effect, a high open-circuit voltage and a low self-discharge. However, they also present some disadvantages such as a high price, loss of capacity, increase of internal resistance and safety issues (overheating, explosion, ignition). These limitations are the current challenges for the scientific and industrial communities.

Degradation, reliability and lifetime (power, capacity and durability) are of high relevance, and different for each battery technology and application. The Empa Laboratory for Electronics/Metrology/Reliability is well established to perform battery degradation and lifetime modelling and therefore is planning to buy an automated battery cell test station. The planned equipment has a capacity up to 500V or 1000A including safety boxes of hazard level-3. The acquisition of this new equipment will allow performing work of specific CCEM projects and will be available to all laboratories in the ETH domain and other research institutes.


Dr. Urs Sennhauser, EMPA
Telephone: +41 44 823 40 54