A Review of Magnesium Aluminum Chloride Complex Electrolytes for Mg Batteries. (31st March 2021)

• Record Type: Journal Article
• Authors: Li, Yaqi; Guan, Shaoliang; Huo, Hua; Ma, Yulin; Gao, Yunzhi; Zuo, Pengjian; Yin, Geping
• Is Part Of: Advanced functional materials. Volume 31:Number 24(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-03-31
• Subjects: Al species -- electroactive Mg species -- electrolytic conditioning -- free Cl − anions -- MACC electrolytes -- Mg batteries; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.202100650
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract: Developing suitable electrolytes with high oxidation decomposition potential, low cost, and good compatibility with electrode materials has been a critical challenge in realizing practical magnesium batteries. The emerging magnesium aluminum chloride complex (MACC) electrolytes based on inorganic chloride salts exhibit high Coulombic efficiencies for magnesium batteries. This review summarizes recent studies of MACC electrolytes, focusing on the synthesis, characterization, and chemical environment of Mg species, electrolytic conditioning of electrolytes, and their application in typical magnesium batteries. The electrolyte evolution and influencing factor of electrolytic conditioning are discussed, and several kinds of conditioning‐free MACC electrolytes are further introduced. Finally, future trends and perspectives in this field are discussed. Abstract : Magnesium aluminum chloride complex (MACC) electrolytes with the advantages of simple synthesis, low cost, and high anode decomposition potential deliver high Mg deposition/stripping Coulombic efficiency and low Mg deposition overpotential after electrolytic conditioning. Herein, the synthesis methods, composition, electrolytic conditioning, and application in full batteries for MACC electrolytes are summarized.