Soaking-free and self-healing hydrogel for wearable zinc-ion batteries

Liu, Yiqin; Gao, Aimei; Hao, Junnan; Li, Xiaolong; Ling, Jingzhou; Yi, Fenyun; Li, Qizhi; Shu, Dong

doi:10.1016/j.cej.2022.139605

Cited by 59 publications

(48 citation statements)

References 50 publications

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“…between the functional groups in hydrogels such as ion bond, chain entanglement, electrostatic interaction, crystallization, and 2) molecular interaction such as hydrogen bonding, and ligand-metal coordination. [187,209] Generally, in comparison with the non-covalent bond interactions, the healing mechanism based on molecular interaction between molecules in hydrogels shows a strengthened self-healing ability. For instance, Liu et al [210] synthesized a solid polymer electrolyte (SPE) based on the poly(propylene oxide) (PPO) polymer chain.…”

Section: Developing Semi-solid Electrolytesmentioning

confidence: 99%

“…Typically, these self‐healable power supplies are based on polymers electrolytes with good self‐healing property through 1) the non‐covalent bond between the functional groups in hydrogels such as ion bond, chain entanglement, electrostatic interaction, crystallization, and 2) molecular interaction such as hydrogen bonding, and ligand–metal coordination. [ 187,209 ] Generally, in comparison with the non‐covalent bond interactions, the healing mechanism based on molecular interaction between molecules in hydrogels shows a strengthened self‐healing ability. For instance, Liu et al.…”

Section: Interface Engineering Of Zinc Electrodementioning

confidence: 99%

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Interface Engineering of Zinc Electrode for Rechargeable Alkaline Zinc‐Based Batteries

et al. 2023

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Rechargeable aqueous zinc‐based batteries have gained considerable interest because of their advantages of high theoretical capacity, being eco‐friendly, and cost effectiveness. In particular, zinc‐based batteries with alkaline electrolyte show great promise due to their high working voltage. However, there remain great challenges for the commercialization of the rechargeable alkaline zinc‐based batteries, which are mainly impeded by the limited reversibility of the zinc electrode. The critical problems refer to the dendrites growth, electrode passivation, shape change, and side reactions, affecting discharge capacity, columbic efficiency, and cycling stability of the battery. All the issues are highly associated with the interfacial properties, including both electrons and ions transport behavior at the electrode interface. Herein, this work concentrates on the fundamental electrochemistry of the challenges in the zinc electrode and the design strategies for developing high‐performance zinc electrodes with regard to optimizing the interfaces between host and active materials as well as electrode and electrolyte. In addition, potential directions for the investigation of electrodes and electrolytes for high‐performance zinc‐based batteries are presented, aiming at promoting the development of rechargeable alkaline zinc‐based batteries.

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Section: Developing Semi-solid Electrolytesmentioning

confidence: 99%

Section: Interface Engineering Of Zinc Electrodementioning

confidence: 99%

Interface Engineering of Zinc Electrode for Rechargeable Alkaline Zinc‐Based Batteries

et al. 2023

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Section: Functional Strategies Of Fqazibsmentioning

confidence: 99%

“…Recently, Shu et al designed a self-healing chitosan chain/PAM gel (Zn 2+ -CS/PAM) via the invertible coordination of Zn 2+ and amino groups forming a physically cross-linked networks as well as the strong intermolecular hydrogen bonds for high-performance FQAZIBs (Figure 9e). [134] Benefiting from the robust interactions, containing complexation between Zn 2+ and amino groups as well as the strong internal hydrogen bonding, the Zn 2+ -CS/PAM gel electrolyte displayed brilliant self-healing capability without any external assistance. Figure 9f intuitively demonstrates the selfhealing procedure of Zn 2+ -CS/PAM.…”

Section: Self-healing Fqazibsmentioning

confidence: 99%

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Flexible Quasi‐Solid‐State Aqueous Zinc‐Ion Batteries: Design Principles, Functionalization Strategies, and Applications

Wang

Liu

et al. 2023

Advanced Energy Materials

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The commercial traditional energy storage devices such as lithium-ion batteries and sodium-ion batteries are bulk and stiff, which hardly meet the requirements of flexible and wearable electronics. [2] Thus, seeking the power sources with high safety, reliability, and flexibility is highly urgent. [3] Aqueous zinc-ion batteries (AZIBs) have attracted a lot of interests with the features of inherent safety, plentiful reserves, low standard redox potential of Zn/Zn 2+ of −0.76 V versus the standard hydrogen electrode (SHE), and facile fabrication process. [4] Besides, the mild or weak acid aqueous electrolytes deliver higher conductivity and safety than organic electrolytes, implying the favorable power density of AZIBs. [5] These virtues endow the AZIBs present marvelous potential application in flexible electronic devices, under a condition that the AZIBs possess excellent flexibility via adopting flexible current collector and flexible packaging materials. [6] However, when the flexible AZIBs based on liquid electrolyte undergo various mechanical deformations, the occurrence of electrolyte leakage may jeopardize the cyclic performance of the batteries. [7] Moreover, the aqueous liquid Aqueous zinc-ion batteries (AZIBs) may have applications in macroscale energy storage on account of their advantages of high-safety, cost-effectiveness, and ecofriendliness. As a promising application, flexible quasi-solidstate AZIBs (FQAZIBs) can withstand mechanical deformation, and can act as favorable power supply devices for wearable electronics. As FQAZIBs are one of the most exciting and rapidly ongoing topics among aqueous batteries, it is critical yet timely to summarize the latest development in this field, providing the much-needed guidance for the fabrication of FQAZIBs. In this review, the recent progress and rational design strategies for FQAZIBs from mechanisms, design principles, and applications are systematically presented. First, the energy storage and flexible mechanisms of FQAZIBs are illuminated in detail. Subsequently, the design philosophies of FQAZIBs are also systematically elucidated. Moreover, the latest progress and practical applications of FQAZIBs in wearable electronics are reviewed in detail according to various functions such as compressibility, stretchability, electrochromic ability, anti-freezing ability, self-healing ability, self-charging properties, photodetecting function, shape memory, biodegradability, and actuated function. Finally, some applications and promising prospects in the research area of FQAZIBs are demonstrated to supply guidelines on the exploitation of their practical applications.

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Tough, Anti‐Fatigue, Self‐Adhesive, and Anti‐Freezing Hydrogel Electrolytes for Dendrite‐Free Flexible Zinc Ion Batteries and Strain Sensors

Chen,

Shen,

Zhang

et al. 2024

Adv Funct Materials

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Quasi‐solid aqueous zinc ion batteries (AZIBs) based on flexible hydrogel electrolytes are promising substitutions of lithium‐ion batteries owing to their intrinsic safety, low cost, eco‐friendliness and wearability. However, it remains a challenge to lower the freezing point without sacrificing the fundamental advantages of hydrogel electrolytes such as conductivity and mechanical properties. Herein, an all‐around hydrogel electrolyte is constructed through a convenient energy dissipation strategy via the rapid and reversible intramolecular/intermolecular ligand exchanges between Zn2+ and alterdentate ligands. The as‐obtained hydrogel exhibits excellent mechanical properties, fatigue resistance, high Zn‐ion conductivity (38.2 mS cm−1), good adhesion (19.1 kPa), and ultra‐low freezing point (−97 °C). Due to the alterdentate ligands help to improve the zinc ion solvation structure and guide uniform Zn deposition, the Zn||Zn symmetric cells show stable plating/stripping behavior and long‐term cycle stability. The Zn||V2O5 full cells exhibit large capacity of 230.6 mAh g−1 and high capacity retention of 75.2% after 1000 cycles. Furthermore, flexible AZIBs operate stably even under extreme conditions including low temperature (−40 °C) and large bending angle (180°). The mechanically damage‐resistant hydrogel can also be utilized in flexible strain sensors. This work offers a facile strategy for developing mechanically deformation‐resistant, dendrite‐free, and environmentally adaptable AZIBs.

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Soaking-free and self-healing hydrogel for wearable zinc-ion batteries

Cited by 59 publications

References 50 publications

Interface Engineering of Zinc Electrode for Rechargeable Alkaline Zinc‐Based Batteries

Interface Engineering of Zinc Electrode for Rechargeable Alkaline Zinc‐Based Batteries

Flexible Quasi‐Solid‐State Aqueous Zinc‐Ion Batteries: Design Principles, Functionalization Strategies, and Applications

Tough, Anti‐Fatigue, Self‐Adhesive, and Anti‐Freezing Hydrogel Electrolytes for Dendrite‐Free Flexible Zinc Ion Batteries and Strain Sensors

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