The Academy, in cooperation with Forschungszentrum Jülich  FZJ, hosted on Sunday 8th May 2022, a scientific symposium on “Material design and stability of All-Solid-State lithium ion batteries”, presented by Fadi Al-Jaljouli who is a doctoral fellow within PGSB program, the researcher at the Institute of Energy and Climate Research Materials Synthesis and Processing (IEK-1), under the supervision of Prof. Dr Olivier Giillon and Dr Robert Mücke.

This Seminar was attended by academics, researchers, and interested students from various Palestinian universities to explore the mechanism of lowering mechanical stress in solid batteries.

The seminar was about the effect of microstructural design of All-Solid-state Lithium ion batteries on their mechanical stress and conductivities, where he explained the reason of the mechanical stress first, and how such a stress can affect the performance of the batteries. Also, he expalined the major two types of stress in the system (Thermal and chemical), moreover he showed the possibilities of lowering the stresses by varying the microstructual parameters (Solid volume fraction of LCO, percentage of porosity in the system and the grain size of both LCO and LLZO). He finally revealed the discovery of the governing factor of the mechanical stress and the conductivities as well.

 

All-Solid-state batteries utilizing mixed cathodes are drawing the attention of most of energy reserchers recently due to its high energy density, safety which considered as the most important aspect for most of industries and customers and due to it is compatibly for industry. On the other hand, this new technology is facing a lot of challenges addressed by forming of dendrites, the interface material between the active material and the solid electrolyte agent in the mixed cathode which hinder the conductivity in the system and finally the mechanical stress resulted of the volume change of the active material as a result of changing it is lattice structure after delithiation of the cathode.

The researcher, Fadi Al-Jaljouli, concluded the seminar with the importance of these factors on the developing of such new technology which will have high impact on solving the energy challenges in Palestine which considered as an energy consumption country and encouraging attendees from different Palestinian universities to engage in the PGSB program.
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