A Near 0 V and Low-Strain Intercalative Anode for Aqueous Zinc-Ion Batteries

Deng, Wenjun; Huang, Zhongyuan; Zhou, Zihao; Chang, Li; Chen, Yan; Zhou, Yi; Huang, Chao; Zhu, Jinlin; Zou, Wenqing; Zhu, Rixiang; Xu, Yushuang; Li, Rui

doi:10.1021/acsenergylett.3c00985

Cited by 12 publications

(3 citation statements)

References 50 publications

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“…But the direct utilization of pure organic solvents to completely eliminate the effect of water is another idea. [ 189–191 ] Ethylene glycol as a hydrogen bond donor has strong coulomb interaction with cations which is considered as perfect hydrogen bond acceptor. [ 192 ] EXAFS was used to study the first solvation structure in pure glycol electrolyte with different salt concentrations.…”

Section: Electrolyte Characterizationmentioning

confidence: 99%

Advanced Characterization Techniques on Mechanism Understanding and Effect Evaluation in Zinc Anode Protection

Zhu,

Li,

Rao

et al. 2024

Advanced Energy Materials

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The growing environmental pollution issues and continuous energy dilemma call for high‐performance energy storage systems (ESSs). While the inevitable safety concerns appear and restrict the application of lithium‐ion batteries in large‐scale ESSs. Contrastively, zinc ion batteries (ZIBs) attract increasing attention due to the inherent advantages of high safety, low cost, and environmental friendliness. However, the poor stability and reversibility of Zn anodes bring severe difficulty for its practical application. Considerable efforts are devoted in the anode modification, such as electrolyte adjustment, interfacial engineering, and anode structure design, but there is still a fuzzy field concerning the reaction process, regulation mechanism, and modified effect. Reviewing the history, the development of various electrodes greatly depends on the breakthrough in advanced characterization technologies, while the summarizations of technological advances in the Zn anode are still deficient. Hence, this review concentrates on the recent progress in various characterization techniques and related strategies of anode protection. The information is especially highlighted that each technique can offer the crucial or auxiliary role they play in proving specific issues. Furthermore, the opinions on current limitations and future directions of common characterization techniques are also discussed in detail, aiming to give a comprehensive perspective in designing advanced zinc anodes.

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Section: Electrolyte Characterizationmentioning

confidence: 99%

Advanced Characterization Techniques on Mechanism Understanding and Effect Evaluation in Zinc Anode Protection

Zhu,

Li,

Rao

et al. 2024

Advanced Energy Materials

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show abstract

“…However, due to the intricate preparation and operation processes involved as well as high costs associated with these coatings, their application is subject to certain limitations. In addition, certain inorganic coatings such as TiO 2 , Al 2 O 3 , ZrO 2 , ZnO, and ZnF 2 can effectively regulate the flux of Zn 2+ ions and increase nucleation sites, thereby prompting the uniform deposition of Zn 2+ ions and ultimately suppressing the formation of zinc dendrites. However, the occurrence of Zn corrosion and hydrogen evolution is still inevitable due to direct electrolyte–anode contact.…”

Section: Introductionmentioning

confidence: 99%

Engineering Interfacial Fast Ion Channels toward Highly Stable Zn Metal Batteries

Zou,

Deng,

et al. 2024

ACS Appl. Mater. Interfaces

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The development of aqueous zinc-ion batteries (AZIBs) is hindered by dendrites and side reactions, such as interfacial byproducts, corrosion, and hydrogen evolution. The construction of an artificial interface protective layer on the surface of the zinc anode has been extensively researched due to its strong operability and potential for large-scale application. In this study, we have designed an organic hydrophobic hybrid inorganic intercalation composite coating to achieve stable Zn 2+ plating/ stripping. The hydrophobic poly(vinylidene fluoride) (PVDF) effectively prevents direct contact between free water and the zinc anode, thereby mitigating the risk of dendrite formation. Simultaneously, the inorganic layer of vanadium phosphate (VOPO 4 •2H 2 O) after the insertion of polyaniline (PA) establishes a robust ion channel for facilitating rapid transport of Zn 2+ , thus promoting uniform electric field distribution and reducing concentration polarization. As a result, the performance of the modified composite PVDF/PA-VOP@Zn anode exhibited significant enhancement compared with that of the bare zinc anode. The assembled symmetric cell exhibits an exceptionally prolonged lifespan of 3070 h at a current density of 1 mA cm −2 , while the full battery employing KVO as the cathode demonstrates a remarkable capability to undergo 2000 cycles at 5 A g −1 with a capacity retention rate of 78.2%. This study offers valuable insights into the anodic modification strategy for AZIBs.

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“…In addition, dendrites, corrosion, hydrogen evolution, etc., seriously challenge the practicability of Zn anodes [ 15–19 ]. Some embedded Zn compounds such as Ti 2 O(PO 4 ) 2 ·2H 2 O [ 20 ], Cu 7 Te 4 [ 21 ], etc. suffer from high anodic potential compared to that of Zn anodes, which is even less able to attain high platform voltage.…”

Section: Introductionmentioning

confidence: 99%

Conversion-type anode chemistry with interfacial compatibility toward Ah-level near-neutral high-voltage zinc ion batteries

Guo,

Qin,

et al. 2024

National Science Review

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High-voltage aqueous zinc ion batteries (AZIBs) with the high-safety near-neutral electrolyte is of great significance for practical sustainable application, however, it suffers from limited choice of anode and electrode/electrolyte interfacial incompatibility. Herein, a conversion-type anode chemistry with a low anodic potential, which is guided by Gibbs free energy change of conversion reaction, was designed for high-voltage near-neutral AZIBs. A reversible conversion reaction between ZnC2O4·2H2O particles and three-dimensional Zn metal networks well-matched in CH3COOLi-based electrolyte was revealed. This mechanism can be universally validated in the battery systems working by sodium or iodine ions. More importantly, a cathodic crowded micellar electrolyte with water confinement effect was proposed, which lies the core for the stability and reversibility of cathode under an operating platform voltage beyond 2.0 V, obtaining a capacity retention of 95% after 100 cycles. Remarkably, the scientific and technological challenges from the coin cell to Ah-scale battery, pertaining to sluggish kinetics of solid-solid electrode reaction, capacity excitation under high loading of active material, and preparation complexities associated with large-area quasi-solid electrolytes, were explored, successfully achieving an 88% capacity retention under high loading of more than 20 mg cm−2 and particularly a practical 1.1 Ah-level pouch cell. This work provides a path for designing low-cost, eco-friendly and high-voltage aqueous batteries.

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A Near 0 V and Low-Strain Intercalative Anode for Aqueous Zinc-Ion Batteries

Cited by 12 publications

References 50 publications

Advanced Characterization Techniques on Mechanism Understanding and Effect Evaluation in Zinc Anode Protection

Advanced Characterization Techniques on Mechanism Understanding and Effect Evaluation in Zinc Anode Protection

Engineering Interfacial Fast Ion Channels toward Highly Stable Zn Metal Batteries

Conversion-type anode chemistry with interfacial compatibility toward Ah-level near-neutral high-voltage zinc ion batteries

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