Synergistic halide and phosphate ester electrolytes for overcoming corrosion and interfacial challenges in magnesium batteries.

ABSTRACT: The practical development of rechargeable magnesium batteries is fundamentally limited by anode passivation, electrolyte-induced corrosion, and sluggish interfacial Mg²⁺ transport. Herein, we develop a universal electrolyte design strategy that exploits the synergy between halides and phosphate esters to address these long-standing challenges. Typically, the incorporation of SiBr₄ and tris(trimethylsilyl) phosphate (TMSP) extends the electrochemical stability window of the electrolyte from 2.75 to 3.94 V and reconstructs the solvation environment toward bis(trifluoromethanesulfonyl)imide (TFSI^-) and TMSP-dominated coordination, significantly lowering the Mg²⁺ desolvation barrier. Preferential reduction of SiBr₄ and TMSP yields a cross-

SUBMITTER: Yang X 

PROVIDER: S-EPMC12908025 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature