Stereochemical expression of Bi 6s² lone pairs mediates fluoride-ion (De)insertion in tunnel-structured Bi₂PdO₄ and Bi_1.6Pb_0.4PtO₄.

ABSTRACT: Fluoride-ion batteries are a promising alternative to lithium-ion batteries by dint of the greater crustal abundance of fluorine and the potential to alleviate the need for metal electrodeposition. However, conventional metal fluoride cathodes typically rely on conversion-type reactions that require propagation of a reaction-diffusion front, thereby limiting cycling performance and rate capability. In contrast, the topochemical insertion of fluoride-ions in periodic solids remains a relatively unexplored approach. Here, we explore the mechanisms of fluoridation of Bi₂PdO₄ and Bi_1.6Pb_0.4PtO₄ insertion hosts that possess capacious tunnels that can accommodate fluoride-ions with a particular emphasis on elucidating the role of stereochemi

SUBMITTER: Agbeworvi G 

PROVIDER: S-EPMC11834969 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature