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首页> 外文期刊>Advanced energy materials >Super-Stretchable Zinc–Air Batteries Based on an Alkaline-Tolerant Dual-Network Hydrogel Electrolyte
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Super-Stretchable Zinc–Air Batteries Based on an Alkaline-Tolerant Dual-Network Hydrogel Electrolyte

机译：基于耐碱性双网水凝胶电解质的超拉伸锌空气电池

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摘要

Stretchable devices need elastic hydrogel electrolyte as an essential component, while most hydrogels will lose their stretchability after being incorporated with strong alkaline solution. This is why highly stretchable zinc-air batteries have never been reported so far Herein, super-stretchable, flat- (800% stretchable) and fiber-shaped (500% stretchable) zinc-air batteries are first developed by designing an alkaline-tolerant dual-network hydrogel electrolyte. In the dual-network hydrogel electrolyte, sodium polyacrylate (PANa) chains contribute to the formation of soft domains and the carboxyl groups neutralized by hydroxyls as well as cellulose as potassium hydroxide stabilizer are responsible for vastly enhanced alkaline tolerance. The obtained super-stretchable, flat zinc-air battery exhibits a high power density of 108.6 mW cm(-2), increasing to 210.5 mW cm(-2) upon being 800% stretched. Similar phenomena are observed for the 500% stretchable fiber-shaped batteries. The devices can maintain stable power output even after being heavily deformed benefiting from the highly soft, alkaline-tolerant hydrogel electrolyte developed. A bendable battery-display system and water proof weavable fiber zinc-air battery are also demonstrated. This work will facilitate the progress of using zinc-air battery powering flexible electronics and smart clothes. Moreover, the developed alkaline-tolerant super-stretchable electrolyte can also be applied for many other alkaline electrolyte. based energy storage/conversion devices.
机译：可拉伸装置需要弹性水凝胶电解质作为基本成分，而大多数水凝胶在与强碱溶液混合后会失去其可拉伸性。这就是为什么迄今从未报道过高度可拉伸的锌空气电池的原因，这里首先通过设计耐碱性来开发超拉伸，扁平（可拉伸800％）和纤维状（可拉伸500％）的锌-空气电池。双网水凝胶电解质。在双网络水凝胶电解质中，聚丙烯酸钠（PANa）链有助于形成软结构域，被羟基以及纤维素作为氢氧化钾稳定剂中和的羧基大大提高了耐碱性。所获得的超级可拉伸扁平锌空气电池表现出108.6 mW cm（-2）的高功率密度，在800％拉伸时会增加到210.5 mW cm（-2）。对于500％可拉伸纤维状电池观察到类似现象。得益于开发的高度柔软，耐碱的水凝胶电解质，即使在严重变形后，这些设备也可以保持稳定的功率输出。还展示了可弯曲的电池显示系统和防水的可编织纤维锌空气电池。这项工作将促进使用锌空气电池为柔性电子产品和智能衣服供电的进展。而且，所开发的耐碱性超拉伸电解质也可用于许多其他碱性电解质。储能/转换设备。

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  • 来源
    《Advanced energy materials》 |2019年第12期|1803046.1-1803046.8|共8页
  • 作者

    Ma Longtao; Chen Shengmei; Wang Donghong; Yang Qi; Mo Funian; Liang Guojin; Li Na; Zhang Haiyan; Zapien Juan Antonio; Zhi Chunyi;

  • 作者单位

    City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China;

    City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China;

    City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China;

    City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China;

    City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China;

    City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China;

    Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China;

    Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China;

    City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China;

    City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China|City Univ Hong Kong, Chengdu Res Inst, Chengdu 610200, Sichuan, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    alkaline-tolerant; dual-network; hydrogel electrolyte; super-stretchable; zinc-air batteries;

    机译：耐碱性;双网络;水凝胶电解质;超拉伸;锌空气电池;

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