Improved Performances of Zn//MnO2 Batteries with an Electrolyte Containing Co-Additives of Polyethylene Glycol and Lignin Derivatives DOI Open Access

Mujeebuddin Memon,

Md. Asraful Alam, Qiyuan Xie

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 888 - 888

Published: March 26, 2025

Multi-component electrolyte additives may significantly contribute to improving the performance of rechargeable aqueous zinc-ion batteries. Herein, we propose a mixed system employing polyethylene glycol 200 (PEG200) and quaternized kraft lignin (QKL) as co-additives in Zn//MnO2 Reduced corrosion suppression hydrogen evolution reaction on zinc electrode were achieved when 0.5 wt.% PEG200 0.2 QKL added reference electrolyte. This optimized electrolyte, 0.5% + 0.2% QKL, was conducive Zn reversibility Zn//Zn symmetric batteries resulted higher cycling stability, with coulombic efficiency 98.01% under 1 mA cm-2 mAh for Zn//Cu cells. Furthermore, full presented good overall electrochemical exhibited decent discharge capacity around 85 g-1 after 2000 cycles at 1.5 A g-1. As confirmed by X-ray diffraction scanning electron microscopy, dominant (002) oriental dendrite-free deposition anode battery using byproducts also reduced significantly. study has contributed development

Language: Английский

Improved Performances of Zn//MnO2 Batteries with an Electrolyte Containing Co-Additives of Polyethylene Glycol and Lignin Derivatives DOI Open Access

Mujeebuddin Memon,

Md. Asraful Alam, Qiyuan Xie

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 888 - 888

Published: March 26, 2025

Multi-component electrolyte additives may significantly contribute to improving the performance of rechargeable aqueous zinc-ion batteries. Herein, we propose a mixed system employing polyethylene glycol 200 (PEG200) and quaternized kraft lignin (QKL) as co-additives in Zn//MnO2 Reduced corrosion suppression hydrogen evolution reaction on zinc electrode were achieved when 0.5 wt.% PEG200 0.2 QKL added reference electrolyte. This optimized electrolyte, 0.5% + 0.2% QKL, was conducive Zn reversibility Zn//Zn symmetric batteries resulted higher cycling stability, with coulombic efficiency 98.01% under 1 mA cm-2 mAh for Zn//Cu cells. Furthermore, full presented good overall electrochemical exhibited decent discharge capacity around 85 g-1 after 2000 cycles at 1.5 A g-1. As confirmed by X-ray diffraction scanning electron microscopy, dominant (002) oriental dendrite-free deposition anode battery using byproducts also reduced significantly. study has contributed development

Language: Английский

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