Prediction of battery aging with a detailed lithium plating model

The efficient and fast charging of lithium-ion batteries remains one of the most delicate challenges for the automotive industry, being seriously affected by the formation of lithium metal on the surface of the negative electrode. At high states of charge, plating competes with and even replaces the intercalation reaction. Experimental evidences for plating include a […]

Quality assurance in lithium-ion battery manufacturing using X-ray computed tomography

Battery cell and module development for electric vehicle (EV) applications is experiencing exponential growth. Multiple varieties of battery cell sizes, architectures, and modules are developed, tested, produced, and are already in application within EV battery packs. Battery component manufacturers and cell and automotive OEMs need to ensure that all batteries brought into the market fulfill […]

Mechanical characterization of the electrode active layer in lithium-ion batteries

The stress-strain relationship for a dry cathode active layer in lithium-ion batteries has been characterized by a mechanical testing method that previously has been applied to the testing of optical fibers. The method is based on U-shaped bending of single-side coated aluminum foils, which enables separate measurements of tensile and compressive properties. In particular, the […]

Interphase formation in hybrid next-generation battery systems

Batteries with high energy density and satisfactory cycling stability are needed for reaching the targeted climate goals. Besides all-solid-state batteries, metal–oxygen and metal–sulfur batteries with liquid electrolytes (LEs) are a promising technology, possibly enabling a sustainable future. To increase the attainable cycling stability, the applied anodes, cathodes, and electrolytes have to be perfectly matched to […]

Innovations in scalable electrode processing for thiophosphate-based all-solid-state-batteries

All-solid-state lithium-ion batteries are promising candidates to overcome safety and energy limitations of common lithium-ion batteries. Although excellent results have been reported for sulfide based electrolytes on a small scale, it is complicated to reproduce the same performance in a larger cell. In this lecture, scalable concepts for high energy anodes are presented. We combined […]

Increased Energy Density and Cycle Life through Direct Contact Prelithiation

Nowadays, lithium-ion batteries are the technology of choice for many applications in the field of consumer electronics and electric mobility. To meet the requirements for the application in electric vehicles, lithium-ion battery technology has many challenges to overcome related to energy density, lifetime, and overall costs. New materials, electrode designs, and production processes for lithium-ion […]

Structuring concepts for innovative electrodes for LIB

Although lithium-ion batteries (LIB) have reached enormous progress over the last years, a further increase of energy density and a reduction of costs are demanded to promote acceptance for substantial applications like electric vehicles. Based on the choice of adequate active materials, an approach to effectively realize high energy electrodes and save costs at the […]