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The model-aided cathode design for lithium ion batteries is presented, which enables a systematically minimization of loss processes and an increase of power and energy density. The cathode model is parametrized without values from literature by combining microstructure analysis via FIB/SEM tomography and electrochemical impedance spectroscopy and finally validated.

microstructure --- modeling --- Mikrostruktur --- Elektromobilität --- Impedanz --- impedance --- Kathode --- cathode --- lithium-ion battery --- Lithium-Ionen Batterie --- microstructure --- modeling --- Mikrostruktur --- Elektromobilität --- Impedanz --- impedance --- Kathode --- cathode --- lithium-ion battery --- Lithium-Ionen Batterie

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The energy management of battery electric vehicle is important for maximum utilisation of the battery. This book elaborates the requirements of the energy management and defines them as mathematical optimization problem. Strategies for the development process based on dynamic programming and for driving operation based on Pontryagin’s maximum principle are presented to consider all significant influences.

Energiemanagement --- Lithium ion battery --- Optimierung --- Elektrofahrzeug --- Lithium-Ionen-Batterie --- Electric vehicle --- Energy management

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The model-aided cathode design for lithium ion batteries is presented, which enables a systematically minimization of loss processes and an increase of power and energy density. The cathode model is parametrized without values from literature by combining microstructure analysis via FIB/SEM tomography and electrochemical impedance spectroscopy and finally validated.

microstructure --- modeling --- Mikrostruktur --- Elektromobilität --- Impedanz --- impedance --- Kathode --- cathode --- lithium-ion battery --- Lithium-Ionen Batterie

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In order to understand the current-voltage behaviour of a Lithium-Ion Battery, its impedance needs to be investigated in the low-frequency domain. This work deals with measurement, modelling and model validation in that low-frequency domain and introduces the Distribution-Function-of-Differential-Capacity (DDC) as a new tool for investigating capacity contributions of different particle sizes and particle types inside of a Lithium-Ion Battery.

Lithium-Ion-Battery --- Lithium-Ionen-Batterie --- Distribution Function of Differential Capacity (DDC) --- Impedanz --- Batteriemodell --- Low-Frequency --- Verteilungsfunktion der differentiellen Kapazität (DDC) --- Battery-Model --- Niederfrequenz --- Impedance