Fluorinated sodiophilic interphase for high-rate and low-temperature initially anode-free sodium battery.

ABSTRACT: Sodium-ion batteries are promising as next-generation energy storage batteries, while suffer from the limited energy density. Initially anode-free sodium batteries effectively alleviate this predicament, but they are primarily hindered by uneven plating/stripping behavior, especially at high rates and low temperatures. Herein, we propose a fluorinated sodiophilic interphase towards high-rate and low-temperature initially anode-free sodium batteries. Systemically comparison between various interphase reveals that Na-alloying-metal containing interphase with high Na adsorption energy and low lattice mismatch facilitates uniform spherical Na plating under high current densities. Besides that, the in-situ formed sodium fluoride strengthens the mechanical properties of the interphase and regula

SUBMITTER: Wang M 

PROVIDER: S-EPMC12783800 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature