Aging and Service Life Forecasts

In the field of aging and service life prediction, we conduct calendar (batteries in storage) and cycle (batteries in operation) aging tests on battery cells, modules and systems. The results allow us to create aging models that can be used to predict the expected aging of the objects under analysis.

In order to be able to make statements about the lifespan of batteries, it is necessary to examine the aging process in battery cells. In this area, a distinction is made between cyclic and calendar aging investigations. For these experiments, test specimens are stored at different ambient temperatures and different states of charge to cause calendar aging. For the cyclic aging test, the operation of batteries is simulated based on typical loads, also at different ambient temperatures and operating ranges. During both processes, the changes in electrical and thermal properties are recorded.

Using these methods, we can model battery aging, evaluate fluctuations in the quality of battery cells and characterize aging processes. This is necessary, among other things, to tailor the design of battery systems and for quality assessment of suppliers.

With the help of the data obtained on calendar and cyclic aging, it is possible to make predictions about the lifespan of batteries.

If you are interested in these topics, please feel free to contact us. We will support and advise you on test design.