1. PPUH Autopart Jacek Bąk sp. z o.o., Kwiatkowskiego 2A, Mielec 39-300, Poland
2. Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Berdychowo 4, Poznań 60-965, Poland
3. Łukasiewicz Research Network – Institute of Non-Ferrous Metals Division in Poznan, Central Laboratory of Batteries and Cells, Forteczna 12, 61-362 Poznan, Poland