title: A High-Performance Rechargeable Mg(2+)/Li(+) Hybrid Battery Using One-Dimensional Mesoporous TiO2(B) Nanoflakes as the Cathode.
abstract: Mg(2+)/Li(+) hybrid batteries have recently been constructed combining a Mg anode, a Li(+)-intercalation electrode, and an electrolyte containing both Mg(2+) and Li(+). These batteries have been reported to outperform all the previously reported magnesium batteries in terms of specific capacity, cycling stability, and rate capability. Herein, we report the outstanding electrochemical performance of Mg(2+)/Li(+) hybrid batteries consisting of a one-dimensional mesoporous TiO2(B) cathode, a Mg anode, and an electrolyte consisting of 0.5 mol L(-1) Mg(BH4)2 + 1.5 mol L(-1) LiBH4 in tetraglyme. A highly synergetic interaction between Li(+) and Mg(2+) ions toward the pseudo-capacitive reaction is proposed. The hybrid batteries show superior rate performance with 130 mAh g(-1) at 1 C and 115 mAh g(-1) at 2 C, together with excellent cyclability up to 6000 cycles.
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Electrochemical Energy Devices Research Center, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University , Shanghai 200240, P. R. China.
authors.forename: Shuojian
authors.initials: S
authors.lastname: Su
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Electrochemical Energy Devices Research Center, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University , Shanghai 200240, P. R. China.
authors.forename: Yanna
authors.initials: Y
authors.lastname: NuLi
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong , Wollongong, NSW 2522, Australia.
authors.forename: Zhenguo
authors.initials: Z
authors.lastname: Huang
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Electrochemical Energy Devices Research Center, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University , Shanghai 200240, P. R. China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Miao
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Electrochemical Energy Devices Research Center, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University , Shanghai 200240, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.affiliation: School of Chemistry and Chemical Engineering, Shanghai Electrochemical Energy Devices Research Center, Hirano Institute for Materials Innovation, Shanghai Jiao Tong University , Shanghai 200240, P. R. China.
authors.forename: Jiulin
authors.initials: J
authors.lastname: Wang
keywords: Mg batteries; Mg2+/Li+ hybrid; TiO2; borohydride; hybrid batteries