As part of the Energy Campus organised by the Energy & Climate Protection Foundation as an ideas competition for young scientists, the current doctoral project of Ms Marit Lahme (Department of Distributed Control in Networked Systems) was honoured with 3rd place.
As part of her research, Ms Lahme is working on the interval-based identification of the open-circuit voltage characteristic of battery cells with the aim of detecting ageing. Batteries have become indispensable in modern consumer and communication electronics systems as well as in the transport and energy sectors. As part of her doctorate, Ms Lahme is developing a new method that makes it possible to determine the ageing effects of battery cells during operation without the need for specified input signals. This method is based on the online estimation of the open-circuit voltage characteristic, which can be used as an alternative to electrochemical impedance spectroscopy. The open-circuit voltage characteristic of a battery cell describes the dependence of the open-circuit voltage on the state of charge. Knowing this is the basis for safe and life-extending operation. This characteristic curve is a non-linear function and is influenced by various factors, such as ageing effects or the temperature of the battery cell. Based on the identified open-circuit voltage characteristic and, if applicable, the internal resistance, conclusions can be drawn about the changes due to external influencing factors. As part of this work, a highly innovative online method is being developed that makes it possible to identify characteristics such as the open-circuit voltage curve of lithium-ion batteries during operation in order to approximate the dynamic behaviour of the battery cell. In addition to the methodical derivation of novel estimation procedures, Ms Lahme is working intensively on the experimental validation of her results on test bench setups in the Distributed Control in Networked Systems department.
We congratulate Marit on this outstanding recognition of her research, which has already gained international visibility through several conference and journal publications!
Award for the doctoral project of Marit Lahme, Research Group Distributed Control in Interconnected Systems, by the Stiftung Energie & Klimaschutz (Energy and Climate Protection Foundation)
As part of the Energy Campus organised by the Energy and Climate Protection Foundation as an ideas competition for young scientists, the ongoing doctoral project of Ms. Marit Lahme (Research Group Distributed Control in Interconnected Systems) was awarded 3rd place.
As part of her research, Ms Lahme is working on the Interval-Based Identification of the Open-Circuit Voltage Characteristic of Battery Cells with the aim of detecting ageing. Batteries have become indispensable in modern consumer and communication electronics as well as in the transportation and energy sectors. As part of her PhD project, Ms. Lahme is developing a novel method that makes it possible to determine the ageing effects of battery cells during normal operation without the need for predetermined testing signals. This method is based on the online estimation of the open-circuit voltage characteristic, which can be used as an alternative to electrochemical impedance spectroscopy. The open-circuit voltage characteristic of a battery cell describes the dependence of the open-circuit voltage on the state of charge. Knowing this characteristic is the basis for safe and life-extending operation. This characteristic curve is a non-linear function and is influenced by various factors, such as ageing effects or the temperature of the battery cell. Based on the identified open-circuit voltage characteristic and possibly the internal resistance, conclusions can be drawn about variations caused by external influence factors. As part of this work, a highly innovative online method is being developed that makes it possible to identify characteristics such as the open-circuit voltage curve of lithium-ion batteries during operation in order to approximate the dynamic behaviour of the battery cell. In addition to the methodical derivation of novel estimation procedures, Ms Lahme is working intensively on the experimental validation of her results on test benches available at the research group Distributed Control in Interconnected Systems.
We cordially congratulate Marit on this outstanding recognition of her research, which has already gained international visibility through several conference and journal publications!