“…In 1994, Dahn et al [ 50 ] used aqueous electrolyte for Li-ion batteries. Following this paper, aqueous electrolytes were used in many other batteries [ 16 , 17 , 18 , 19 , 20 , 33 , 43 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 ]. In 2012, a rechargeable multivalent Al-ion battery with aqueous electrolyte was proposed as a promising candidate for high energy storage to compete with the Li-ion batteries [ 51 ].…”