Extraordinary High Trivalent Al³⁺ Ion Conduction in Solids

Abstract

An extraordinary high Al3+ ion conducting solid electrolyte was realized by successfully stabilizing the NASICON-type structure which has a suitable three-dimensional Al3+ ion pass way. Because the Al3+ ion conductivity reaches the ion conductivity region of the well-known and commercially available oxide anion conducting solids, practical applications of the present Al3+ ion conducting (AlxZr1-x)4/(4-x)Nb(PO4)3 solid for functional materials such as chemical sensors, rechargeable batteries, etc., are greatly expected.