Small molecule-based supramolecular-polymer double-network hydrogel electrolytes for ultra-stretchable and waterproof Zn–air batteries working from −50 to 100 °C

Gu, Chaonan; Xie, Xiao‐Qiao; Liang, Yujia; Li, Jingjing; Wang, Hai; Wang, Kaifang; Liu, Junpeng; Wang, Mengke; Zhang, Yunfei; Li, Manxing; Kong, Huajie; Liu, Chun‐Sen

doi:10.1039/d1ee01134k

Cited by 129 publications

(74 citation statements)

References 51 publications

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“…Because of multiple interactions, ionic conductivity of the KOH (6 M)–filled SP-DN hydrogel electrolyte reached 431.7 and 3.2 mS cm −1 at 100° and −80°C, respectively, as demonstrated in Fig. 8G ( 85 ). Inspired by the phenomenon that epidermis covers the muscle tissue to prevent dehydration, an elastomer layer was chemically coated on the surface of a hydrogel to form a biomimetic organohydrogel (BM-gel) electrolyte and avoid migration of water molecules from inner gel matrix to the external environment ( Fig.…”

Section: Discussionmentioning

confidence: 84%

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From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries

et al. 2022

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As one of the most competitive candidates for the next-generation energy storage systems, the emerging rechargeable zinc metal battery (ZMB) is inevitably influenced by beyond-room-temperature conditions, resulting in inferior performances. Although much attention has been paid to evaluating the performance of ZMBs under extreme temperatures in recent years, most academic electrolyte research has not provided adequate information about physical properties or practical testing protocols of their electrolytes, making it difficult to assess their true performance. The growing interest in ZMBs is calling for in-depth research on electrolyte behavior under harsh practical conditions, which has not been systematically reviewed yet. Hence, in this review, we first showcase the fundamentals behind the failure of ZMBs in terms of temperature influence and then present a comprehensive understanding of the current electrolyte strategies to improve battery performance at harsh temperatures. Last, we offer perspectives on the advance of ZMB electrolytes toward industrial application.

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Section: Discussionmentioning

confidence: 84%

“…RT, room temperature. (F) and (G) are reproduced with permission from the Royal Society of Chemistry ( 85 ). ( H ) Illustration and SEM image of BM-gel electrolyte.…”

Section: Discussionmentioning

confidence: 99%

From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries

et al. 2022

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“…can be utilized to construct the first network of a hybrid DN hydrogel. [75][76][77][78][79][80][81][82][83][84]…”

Section: Physically/chemically Cross-linked Hybrid Dn Gelsmentioning

confidence: 99%

Recent Progress in Double Network Elastomers: One Plus One is Greater Than Two

Yang

Tang

et al. 2022

Adv Funct Materials

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Human beings cannot live without elastomers, which exist almost everywhere in human life nowadays. Although elastomers with a variety of features are developed for specific applications, a timeless topic is how to toughen them, because mechanical properties always determine the reliability and lifespan of the utilized elastomers. Toughening of a soft material has a long history and the main idea is widely accepted, i.e., building energy dissipation into the stretchy networks. Double network (DN) method is the most pioneering and representative practice of materials toughening, which is successfully applied to numerous hydrogel systems. Intensive studies on DN hydrogel systems are implemented and relevant reviews are well documented, whereas important reviews about DN elastomers are absent. In this review, recent progress on toughening elastomers using the DN strategy is reviewed. By reviewing the fabrication methods and relevant extensions, toughening mechanisms at different length scales, functionalities, and applications in sequence, it is shown how one polymer network plus another gives rise to a tough elastomer with superior mechanical properties. It is believed that this review can give some insight into existing DN elastomer systems and inspire the development of next‐generation tough soft materials.

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“…Instability of the electrochemical interfaces, which can lead to Zn dendrites, side reactions, corrosion, etc., greatly affects the cycling lifespan of high-rate quasi-solid-state ZABs and deserves further research attention 20 , 21 . Currently, the conventional alkaline hydrogel electrolyte causes severe passivation of the Zn anode, leading to irreversibility of Zn plating/stripping and limited cycling capability.…”

Section: Introductionmentioning

confidence: 99%

Quasi-solid-state Zn-air batteries with an atomically dispersed cobalt electrocatalyst and organohydrogel electrolyte

et al. 2022

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Quasi-solid-state Zn-air batteries are usually limited to relatively low-rate ability (<10 mA cm−2), which is caused in part by sluggish oxygen electrocatalysis and unstable electrochemical interfaces. Here we present a high-rate and robust quasi-solid-state Zn-air battery enabled by atomically dispersed cobalt sites anchored on wrinkled nitrogen doped graphene as the air cathode and a polyacrylamide organohydrogel electrolyte with its hydrogen-bond network modified by the addition of dimethyl sulfoxide. This design enables a cycling current density of 100 mA cm−2 over 50 h at 25 °C. A low-temperature cycling stability of over 300 h (at 0.5 mA cm−2) with over 90% capacity retention at −60 °C and a broad temperature adaptability (−60 to 60 °C) are also demonstrated.

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Small molecule-based supramolecular-polymer double-network hydrogel electrolytes for ultra-stretchable and waterproof Zn–air batteries working from −50 to 100 °C

Abstract: Increasing boom in soft electronics field has boosted the development of highly stretchable and environment-adaptable energy storage devices based on hydrogel electrolytes. Development of such soft energy supply devices still...

Cited by 129 publications

References 51 publications

From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries

From room temperature to harsh temperature applications: Fundamentals and perspectives on electrolytes in zinc metal batteries

Recent Progress in Double Network Elastomers: One Plus One is Greater Than Two

Quasi-solid-state Zn-air batteries with an atomically dispersed cobalt electrocatalyst and organohydrogel electrolyte

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