Researchers have made significant progress in exploring battery aging through various techniques such as spectroscopic measurements (FTIR, XPS, EDAX), 10,11,12,13 morphology and structural analysis (XRD, SEM, AFM), 6,13,14,15,16,17 combined with impedance spectroscopy, 13,15,17,18 electrochemical quartz crystal microbalance (EQCM) 14,16,17,19 an.
