Dr. András Sápi, the leader of the Li-ion Battery Research Group at the University of Szeged, participating in the National Laboratory for Renewable Energy (NLRE) project, shares his insights.
The NLRE project support enabled the research group to test new and used batteries: diagnostics according to the basic standard, and the development of deep, post-mortem examinations, i.e. tests after the end of the battery's life. It also provided the opportunity to create educational materials and to obtain the storage unit adapted to the Energy Innovation Test Station of the University of Szeged (SZTE EIT), which is based on a battery system from a secondary source.
In the university laboratories, several results were developed: battery tests according to the American UL 1974 safety standard (recycled or refurbished), non-destructive and destructive material science diagnostics, and the diagnostics chapter of the book entitled in English "Energy Storage and Battery Industry Basics" (ISBN: 9789636641337, Akadémiai Kiadó) was written – it can be read in Hungarian through the following link: https://akademiai.hu/ptudx00538-pod-energiatarolasi-es-akkumulatoripari-alapismeretek.html?srsltid=AfmBOoqWIorDULGkZQPt5W-kczOagzeIfeKZACsI7fuhe47R-W3byRyp

Complex diagnostics of batteries
Furthermore, an energy storage unit adapted to the photovoltaic, i.e. solar-panel electrical system, located at the SZTE EIT was also supplied. Details about the SZTE EIT can be found at the following link: https://greennovation.hu/en/energy-innovation-test-station-at-the-university-of-szeged