Fig. 2: Anticorrosion effect of HTA on the Al current collector.
From: Aluminum corrosion–passivation regulation prolongs aqueous batteries life

A, B Chronoamperometry (CA) experiments in 1 and 10 m LiTFSI solutions with saturated HTA (Li3PO4, Li2CO3, LiAlO2, and Li2SiO3). C, D Al contents in electrolytes obtained via inductive coupled plasma (ICP) measurement and SEM images of Al foils after CA experiments using 1 and 10 m LiTFSI solutions with HTA. E Al 2p X-ray photoelectron spectroscopy (XPS) spectra of Al foil after CA experiments using 10 m LiTFSI with HTA before and after 60 s Ar+ sputtering. The blue vertical line is based on the Al2O3 peak of pristine Al.