Year: 2026
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Here, we report novel electrolytes based on fluorine-free (F-free) salt zinc methanesulfonate (ZMS) in N,N -dimethylpropyleneurea (DMPU) and triethyl phosphate (TEP). While the single-solvent DMPU-based electrolyte exhibited suboptimal performance at 0.5 mA cm –2, the addition of TEP as a dual solvent significantly enhanced the electrochemical performance for over 1000 h at 1 mA cm –2 and up to 2.5 mAh cm –2 . TEP modulated the solvation structure of the electrolyte, which facilitated Zn 2+ desolvation and promoted uniform zinc plating/stripping, while its partial reduction during initial cycling formed a robust solid electrolyte interphase (SEI) composed of zinc phosphate and organic phosphate species, effectively suppressing the dendrite growth and minimizing side reactions. The dual-solvent electrolyte demonstrated an excellent cycling stability and a high Coulombic efficiency, while the polyaniline (PANI)-based full cell achieved 88% capacity retention at 0.1 A g –1, and ∼80% retention at 1 A g –1 over 500 cycles. Besides, the full cell based on activated carbon (AC) also maintained 76% retention at 0.1 A g –1 . This study manifests the potential of the F-free dual-solvent electrolyte for applications in both zinc-ion supercapacitors (ZICs) and zinc-ion batteries (ZIBs).
Authors: Farva Ilyas, Sayantika Bhakta, Andrei Filippov, Rong An, Oleg N. Antzutkin, Faiz Ullah Shah
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Awards: G3678615198, G4689714033
OpenAlex ID: W7130823389