Recent advances in zinc-ion dehydration strategies for optimized Zn–metal batteries

Li, Haoyu; Li, Sijie; Hou, Ruilin; Rao, Yuan; Guo, Shaohua; Chang, Zhi; Zhou, Haoshen

doi:10.1039/d4cs00343h

Chem. Soc. Rev.

2024

DOI: 10.1039/d4cs00343h

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Recent advances in zinc-ion dehydration strategies for optimized Zn–metal batteries

Haoyu Li,

Sijie Li,

Ruilin Hou

et al.

Abstract: Two principles of component regulation and pre-desolvation and derived strategies for achieving dehydrated zinc-ion solvation structures are systematically reviewed.

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Cited by 13 publications

References 258 publications

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Boosting the Anode and Cathode Stability Simultaneously by Interfacial Engineering via Electrolyte Solvation Structure Regulation Toward Practical Aqueous Zn‐ion Battery

Wang,

Zhong,

Wang

et al. 2024

Adv Funct Materials

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The application of zinc‐ion batteries (ZIBs) is seriously challenged by the poor stability of Zn anode and cathode in aqueous solution, which is closely associated with electrolyte structure and water reactivity. Herein, the stability issues both for the cathode and anode can be simultaneously addressed via tuning the electrolyte solvation structure in hybrid electrolyte with tripropyl phosphate (TPP) as co‐solvent. On the Zn anode, a robust poly‐inorganic solid electrolyte interphase (SEI) layer comprised of Zn3(PO4)2‐ZnS‐ZnF2 species is in situ formed, effectively suppressing parasitic reaction and dendrite evolution. For V2O5 cathode, the notorious vanadium dissolution is effectively restricted with improved structure stability achieved. The optimized electrolyte facilitates the reversible redox kinetics both at the cathode and Zn anode. Consequently, Zn||Zn cells display extended cycling lifespans over 3000 h at 1 mA cm−2, 1 mAh cm−2. Zn||V2O5 full cells deliver a high reversible capacity of 261.8 mAh g−1 and hold retention of 73.6% upon 500 cycles even operated in harsh conditions with thin Zn anode (10 µm) and low negative/positive (N/P) ratio of ≈4.3, which also showcase impressive performance with regard to rate and storage performance, further emphasizing the potential of electrolyte regulation tactics in advancing the commercialization of ZIBs.

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Boosting the Anode and Cathode Stability Simultaneously by Interfacial Engineering via Electrolyte Solvation Structure Regulation Toward Practical Aqueous Zn‐ion Battery

Wang,

Zhong,

Wang

et al. 2024

Adv Funct Materials

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Reconfiguring Zn²⁺ Solvation Structures and Modulating the Inner Helmholtz Plane Via Janus Supramolecules

Wu,

Wang,

Chen

et al. 2024

Adv Funct Materials

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Zn metal anodes (ZMAs) are plagued by dendritic growth and side reactions, which results in the degradation of their electrochemical performance. In this study, a carboxylated pillar[5]arene (CP5) is introduced with Janus properties to reconstruct the solvation structure of Zn2+ and modulate the inner Helmholtz plane (IHP). The electron‐rich cavity of CP5 adsorbs Zn2+ through electrostatic interactions synergistically reconfiguring the solvated structure of Zn. Concurrently, the zincophilic carboxyl groups preferentially adsorb onto the Zn electrode interface, while the hydrophobic cavity modulates the IHP by repelling certain H₂O molecules. The synergistic impact of this dual reconfiguration strategy effectively suppresses the hydrogen evolution reaction (HER), and curtails dendrite formation and associated side reactions, thereby enhancing the long‐term stability of the electrode‐electrolyte interface. The results demonstrate that a Coulombic efficiency (CE) of 99.1% in the Zn||Cu asymmetric cell is achieved during the galvanization/stripping process at 5 mA cm−2 under 1 mAh cm−2. Furthermore, the optimized electrolyte maintains a capacity retention of 91.4% after 1000 cycles in a Zn‐I2 battery, demonstrating exceptional cycling stability. This study offers a viable strategy for optimizing the Zn2+ solvation structure and informs the design of electrolytes for highly reversible metal‐anode batteries.

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Versatile Biopolymers for Advanced Lithium and Zinc Metal Batteries

Li,

Zhi

2024

Advanced Materials

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Lithium (Li) and zinc (Zn) metals are emerging as promising anode materials for next‐generation rechargeable metal batteries due to their excellent electronic conductivity and high theoretical capacities. However, issues such as uneven metal ion deposition and uncontrolled dendrite growth result in poor electrochemical stability, limited cycle life, and rapid capacity decay. Biopolymers, recognized for their abundance, cost‐effectiveness, biodegradability, tunable structures, and adjustable properties, offer a compelling solution to these challenges. This review systematically and comprehensively examines biopolymers and their protective mechanisms for Li and Zn metal anodes. It begins with an overview of biopolymers, detailing key types, their structures, and properties. The review then explores recent advancements in the application of biopolymers as artificial solid electrolyte interphases, electrolyte additives, separators, and solid‐state electrolytes, emphasizing how their structural properties enhance protection mechanisms and improve electrochemical performance. Finally, perspectives on current challenges and future research directions in this evolving field are provided.

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Recent advances in zinc-ion dehydration strategies for optimized Zn–metal batteries

Abstract: Two principles of component regulation and pre-desolvation and derived strategies for achieving dehydrated zinc-ion solvation structures are systematically reviewed.

Cited by 13 publications

References 258 publications

Boosting the Anode and Cathode Stability Simultaneously by Interfacial Engineering via Electrolyte Solvation Structure Regulation Toward Practical Aqueous Zn‐ion Battery

Boosting the Anode and Cathode Stability Simultaneously by Interfacial Engineering via Electrolyte Solvation Structure Regulation Toward Practical Aqueous Zn‐ion Battery

Reconfiguring Zn²⁺ Solvation Structures and Modulating the Inner Helmholtz Plane Via Janus Supramolecules

Versatile Biopolymers for Advanced Lithium and Zinc Metal Batteries

Contact Info

Product

Resources

About

Recent advances in zinc-ion dehydration strategies for optimized Zn–metal batteries

Abstract: Two principles of component regulation and pre-desolvation and derived strategies for achieving dehydrated zinc-ion solvation structures are systematically reviewed.

Cited by 13 publications

References 258 publications

Boosting the Anode and Cathode Stability Simultaneously by Interfacial Engineering via Electrolyte Solvation Structure Regulation Toward Practical Aqueous Zn‐ion Battery

Boosting the Anode and Cathode Stability Simultaneously by Interfacial Engineering via Electrolyte Solvation Structure Regulation Toward Practical Aqueous Zn‐ion Battery

Reconfiguring Zn2+ Solvation Structures and Modulating the Inner Helmholtz Plane Via Janus Supramolecules

Versatile Biopolymers for Advanced Lithium and Zinc Metal Batteries

Contact Info

Product

Resources

About

Reconfiguring Zn²⁺ Solvation Structures and Modulating the Inner Helmholtz Plane Via Janus Supramolecules