Advancements in aqueous zinc–iodine batteries: a review

Bai, Zhongchao; Wang, Gulian; Liu, Hongmin; Lou, Yitao; Wang, Nana; Liu, HuaKun; Dou, Shixue

doi:10.1039/d3sc06150g

Cited by 19 publications

(2 citation statements)

References 117 publications

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“…Although researchers have conducted a lot of studies on this and achieved numerous results, the aqueous zinc-iodine battery is still in the primary stage of development, and there is an urgent need to summarize and discuss the current status of the aqueous zinc-iodine battery in a timely manner so as to provide suggestions and directions for guiding the design and optimization of the zinc-iodine battery in the future. More importantly, there are currently few reviews on suppressing the shuttle effect in aqueous zinc-iodine batteries, and most of them describe and summarize from the perspective of specific materials [34][35][36]. In contrast, this review summarizes the current measures to suppress the shuttle effect in aqueous zinc-iodide batteries from a strategic perspective, which can provide readers with a more macroscopic understanding of the material design concepts and measures.…”

Section: Introductionmentioning

confidence: 99%

Suppressing the Shuttle Effect of Aqueous Zinc–Iodine Batteries: Progress and Prospects

Li,

Wu,

et al. 2024

Materials

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Aqueous zinc–iodine batteries are considered to be one of the most promising devices for future electrical energy storage due to their low cost, high safety, high theoretical specific capacity, and multivalent properties. However, the shuttle effect currently faced by zinc–iodine batteries causes the loss of cathode active material and corrosion of the zinc anodes, limiting the large-scale application of zinc–iodine batteries. In this paper, the electrochemical processes of iodine conversion and the zinc anode, as well as the induced mechanism of the shuttle effect, are introduced from the basic configuration of the aqueous zinc–iodine battery. Then, the inhibition strategy of the shuttle effect is summarized from four aspects: the design of cathode materials, electrolyte regulation, the modification of the separator, and anode protection. Finally, the current status of aqueous zinc–iodine batteries is analyzed and recommendations and perspectives are presented. This review is expected to deepen the understanding of aqueous zinc–iodide batteries and is expected to guide the design of high-performance aqueous zinc–iodide batteries.

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Section: Introductionmentioning

confidence: 99%

Suppressing the Shuttle Effect of Aqueous Zinc–Iodine Batteries: Progress and Prospects

Li,

Wu,

et al. 2024

Materials

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“…Nevertheless, aqueous ZnÀ I 2 batteries suffer from several challenges that hinder their long cycle life. [6] Aside from the formation of zinc dendrites, corrosion, and passivation that occur on the zinc anode, [7,8] polyiodide dissolution in the presence of aqueous media is also problematic, leading to the so-called "shuttle effect" and resulting in irreversible loss of active mass and short cycle life in ZnÀ I 2 batteries. [6] The high solubility of iodine in certain organic electrolytes, [9] including iodide-containing solvents, [10] can also cause the formation of polyiodide ions such as I 3 À and I 5 À , leading to battery failure.…”

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confidence: 99%

Enhancing the Cycle Life of Zinc–Iodine Batteries in Ionic Liquid‐Based Electrolytes

Kar,

Pozo‐Gonzalo

2024

Angewandte Chemie

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Aqueous zinc‐iodine (Zn‐I2) batteries are gaining significant attention due to their low‐cost, high safety and high theoretical capacity. Nevertheless, their long cycle and durability have been hampered due to the use of aqueous media that overtime lead to Zn dendrite formation, hydrogen evolution reaction, and polyiodide dissolution. Xiao et. al., recently reported the addition of an imidazolium‐based ionic liquid (IL), to an aqueous electrolyte, that plays a key role in modifying the solvation of Zn2+ ions in the bulk electrolyte and the inner Helmotlz plane, which eliminates free H2O molecules to be present on the Zn anode surface. UV/Vis and NMR spectroscopy also indicates a strong interaction between imidazolium cation [EMIM]+ and I3‐, thereby reducing polyiodide shuttling and enhancing the cycle life of the battery. Overall, a capacity decay rate of only 0.01 % per cycle after over 18,000 cycles at 4 Ag‐1, is observed making the use of IL additives in aqueous electrolytes highly promising candidates for Zn‐I2 batteries.

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Biopolymer‐Based Gel Electrolytes for Advanced Zinc Ion Batteries: Progress and Perspectives

Jia,

Wei,

et al. 2024

Adv Funct Materials

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In recent years, aqueous zinc ion batteries (ZIBs) with ultra‐high safety and environmental friendliness have emerged as a promising candidates for energy storage and energy conversion devices. However, the severe side reactions and dendrites issues discourage the practical application of ZIBs. Recently, biopolymer‐based gel electrolytes have disclosed large potential in tackling these challenges of ZIBs, with numerous advancements reported. Their advantages lie in suppressing side reactions including hydrogen evolution and Zn metal anode corrosion, as well as inhibiting the growth of Zn dendrites. This review comprehensively examines the classification, structures and properties of biopolymer‐based gel electrolytes, with a focus on hydrogel electrolytes derived from various natural macromolecular biopolymers, along with a brief discussion on non‐hydrogel electrolytes using ionic liquids or organic solutions as solvents. Subsequently, the preparation of biopolymer‐based gel electrolytes with physical and chemical methods are summarized. Furthermore, the practical applications of biopolymer‐based gel electrolytes in ZIBs with diverse cathodes materials are introduced. Finally, it highlights the environmental benefits and excellent electrochemical performance of biopolymer‐based gel electrolytes, outlining their prospects for the next generation of ZIBs and proposing future perspectives.

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Advancements in aqueous zinc–iodine batteries: a review

Abstract: Aqueous zinc-iodine batteries stand out as highly promising energy storage systems, owing to the abundance of resources and non-combustible nature of water, coupled with their high theoretical capacity. Nevertheless, the...

Cited by 19 publications

References 117 publications

Suppressing the Shuttle Effect of Aqueous Zinc–Iodine Batteries: Progress and Prospects

Suppressing the Shuttle Effect of Aqueous Zinc–Iodine Batteries: Progress and Prospects

Enhancing the Cycle Life of Zinc–Iodine Batteries in Ionic Liquid‐Based Electrolytes

Biopolymer‐Based Gel Electrolytes for Advanced Zinc Ion Batteries: Progress and Perspectives

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