Enhanced electrostatic shielding effect through incorporation of trace amounts of highly chelating anions for establishing a more stable electric double layer

Wang, Minghui; Yin, Junyi; Feng, Xiang; Li, Fuxiang; Li, Zhuo; Zhang, Wen; Cheng, Yonghong; Xu, Xin

doi:10.1039/d4ta02193b

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta02193b

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Enhanced electrostatic shielding effect through incorporation of trace amounts of highly chelating anions for establishing a more stable electric double layer

Minghui Wang,

Junyi Yin,

Xiang Feng

et al.

Abstract: Electrolyte engineering is seen as a straightforward and efficient approach to optimize the cycling performance of aqueous zinc-ion batteries (ZIBs), but most of the studies tend to focus on the...

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Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I₂ Full Batteries

Fu,

Huang,

Wang

et al. 2024

Advanced Materials

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Electrolyte additives are investigated to resolve dendrite growth, hydrogen evolution reaction, and corrosion of Zn metal. In particular, the electrostatic shielding cationic strategy is considered an effective method to regulate deposition morphology. However, it is very difficult for such a simple cationic modification to avoid competitive hydrogen evolution reactions, corrosion, and interfacial pH fluctuations. Herein, multifunctional additives of potassium hydrogen phthalate (KHP) based on the synergistic design of cationic shielding and anionic chemistry for ultrastable Zn||I2 full batteries are demonstrated. K cations, acting as electrostatic shielding cations, constructed the smooth deposition morphology. HP anions can enter the first solvation shell of Zn2+ for the reduced activities of H2O, while they remain in the primary solvation shell and are finally involved in the formation of SEI, thus accelerating the charge transfer kinetics. Furthermore, by in situ monitoring the near‐surface pH of the Zn electrode, the KHP additives can effectively inhibit the accumulation of OH− and the formation of by‐products. Consequently, the symmetric cells achieve a high stripping–plating reversibility of over 4500 and 2600 h at 1.0 and 5 mA cm−2, respectively. The Zn||I2 full cells deliver an ultralong term stability of over 1400 cycles with a high‐capacity retention of 78.5%.

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Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I₂ Full Batteries

Fu,

Huang,

Wang

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

show abstract

The host-guest effect of D-xylose constructs the weak-synergistic sheath structure of Zn2+ to achieve high performance of aqueous zinc ion batteries at the low temperature

Rao,

Han,

Luo

et al. 2024

Chemical Engineering Journal

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Co-solvent electrolyte-induced zinc anode surface reconstruction for high performance zinc ion batteries

Cui,

Wang,

Wang

et al. 2024

Chemical Engineering Journal

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Enhanced electrostatic shielding effect through incorporation of trace amounts of highly chelating anions for establishing a more stable electric double layer

Abstract: Electrolyte engineering is seen as a straightforward and efficient approach to optimize the cycling performance of aqueous zinc-ion batteries (ZIBs), but most of the studies tend to focus on the...

Cited by 5 publications

References 52 publications

Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I₂ Full Batteries

Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I₂ Full Batteries

The host-guest effect of D-xylose constructs the weak-synergistic sheath structure of Zn2+ to achieve high performance of aqueous zinc ion batteries at the low temperature

Co-solvent electrolyte-induced zinc anode surface reconstruction for high performance zinc ion batteries

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Enhanced electrostatic shielding effect through incorporation of trace amounts of highly chelating anions for establishing a more stable electric double layer

Abstract: Electrolyte engineering is seen as a straightforward and efficient approach to optimize the cycling performance of aqueous zinc-ion batteries (ZIBs), but most of the studies tend to focus on the...

Cited by 5 publications

References 52 publications

Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I2 Full Batteries

Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I2 Full Batteries

The host-guest effect of D-xylose constructs the weak-synergistic sheath structure of Zn2+ to achieve high performance of aqueous zinc ion batteries at the low temperature

Co-solvent electrolyte-induced zinc anode surface reconstruction for high performance zinc ion batteries

Contact Info

Product

Resources

About

Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I₂ Full Batteries

Synergistic Cationic Shielding and Anionic Chemistry of Potassium Hydrogen Phthalate for Ultrastable Zn─I₂ Full Batteries