Improving rechargeable magnesium batteries through dual cation co-intercalation strategy.

ABSTRACT: The development of competitive rechargeable Mg batteries is hindered by the poor mobility of divalent Mg ions in cathode host materials. In this work, we explore the dual cation co-intercalation strategy to mitigate the sluggishness of Mg²⁺ in model TiS₂ material. The strategy involves pairing Mg²⁺ with Li⁺ or Na⁺ in dual-salt electrolytes in order to exploit the faster mobility of the latter with the aim to reach better electrochemical performance. A combination of experiments and theoretical calculations details the charge storage and redox mechanism of co-intercalating cationic charge carriers. Comparative evaluation reveals that the redox activity of Mg²⁺ can be improved significantly with the help of the dual cation co-

SUBMITTER: Roy A 

PROVIDER: S-EPMC10786895 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature