首页|Multifunctional Sodium Gluconate Electrolyte Additive Enabling Highly Reversible Zn Anodes

Multifunctional Sodium Gluconate Electrolyte Additive Enabling Highly Reversible Zn Anodes

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Sodium gluconate(SG)is reported as an electrolyte additive for rechargeable aqueous zinc batteries.The SG addition is proposed to modulate the nucleation overpotential and plating behaviors of Zn by forming a shielding buffer layer because of the adsorption priority and large steric hindrance effect,which contributes to limited rampant Zn2+diffusion and mitigated hydrogen evolution and corrosion.With the introduction of 30 mmol/L SG in 2 mol/L ZnS04 electrolyte,the Zn anode harvests a reversible cycling of 1200 h at 5 mA/cm2 and a high average Coulombic efficiency of Zn plating/stripping(99.6％).Full cells coupling Zn anode with V2O5·1.6H2O or polyaniline cathode far surpass the SG additive-free batteries in terms of cycle stability and rate capability.This work provides an inspiration for design of a high-effective and low-cost electrolyte additive towards Zn-based energy storage devices.

Electrolyte additiveZn anodeSodium gluconateAdsorptionZn dendrite

ZHAO Kang、ZHAO Jianan、YU Meng、LIU Fangming、DONG Yang、WANG Shiwen、CHENG Fangyi

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College of Chemistry,Nankai University,Tianjin 300071,P.R.China

College of New Energy,Zhengzhou University of Light Industry,Zhengzhou 450002,P.R.China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaPhD Research Fund Project of Zhengzhou University of Light Industry,ChinaScience and Technology Project of Henan Province,ChinaNatural Science Foundation of Henan Province,ChinaSpecially-Appointed Professor Project of Zhengzhou University of Light Industry,China.μ

21925503223091672022BSJJZK10242102241045242300420206

2024

10.1007/s40242-024-4110-9

高等学校化学研究(英文版)
吉林大学

高等学校化学研究(英文版)

CSTPCD
影响因子：0.871
ISSN：1005-9040
年,卷(期)：2024.40(4)