Abstract

Today lithium ion batteries (LIB) are the state-of-the-art technology for traction batteries in electric vehicles due to their high energy capacity and output as well as power density. However, the determination of the aging and performance of the LIB remains a challenge, since these essential parameters are highly dependent on the vehicle, user behaviour and environmental conditions. Therefore, traction batteries have the necessity to be constantly monitored by the vehicle electronics. In addition, new methods are needed for the efficient evaluation and diagnosis of the LIB, which are used during development, production and subsequent operation.

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