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Ultrastretchable and superior healable supercapacitors based on a double cross-linked hydrogel electrolyte

Author

Listed:
  • Huili Li

    (Tongji University)

  • Tian Lv

    (Tongji University)

  • Huanhuan Sun

    (Tongji University)

  • Guiju Qian

    (Tongji University)

  • Ning Li

    (Tongji University)

  • Yao Yao

    (Tongji University)

  • Tao Chen

    (Tongji University)

Abstract

Due to inherently poor healable and stretchable features, the most explored polyvinyl alcohol-based gel electrolytes cannot well meet the requirements of stretchable, healable and multifunctional supercapacitors. Here, we report a hydrogel of a copolymer cross-linked by double linkers of Laponite (synthetic hectorite-type clay) and graphene oxide. The resultant hydrogel shows high mechanical stretchability, excellent ionic conductivity, and superior healable performance. Along with designing wrinkled-structure electrodes, supercapacitors fabricated by using this hydrogel as a gel electrolyte not only exhibit ultrahigh mechanical stretchability of 1000%, but also achieve repeated healable performance under treatments of both infrared light irradiation and heating. More significantly, a broken/healed supercapacitor also possesses an ultrahigh stretchability up to 900% with slight performance decay. This hydrogel electrolyte could be easily functionalized by introducing other functional components, and extended for use in other portable and wearable energy related devices with multifunction.

Suggested Citation

  • Huili Li & Tian Lv & Huanhuan Sun & Guiju Qian & Ning Li & Yao Yao & Tao Chen, 2019. "Ultrastretchable and superior healable supercapacitors based on a double cross-linked hydrogel electrolyte," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08320-z
    DOI: 10.1038/s41467-019-08320-z
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    Cited by:

    1. Liu, Yongcun & Zhang, Wenye & Su, Xiaoxiang & He, Wenjie & Yang, Jia & Qin, Gang & Yu, Xiang & Chen, Qiang, 2023. "Self-healable, mechanically durable and cold-resistant integrated supercapacitor enabled by dual metallic redox-mediated multiple cross-linking gel polymer electrolyte," Energy, Elsevier, vol. 282(C).
    2. Nitesh Kumar & Lingaraj Pradhan & Bikash Kumar Jena, 2022. "Recent progress on novel current collector electrodes for energy storage devices: Supercapacitors," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 11(1), January.
    3. Duan, Hanbing & Zhang, Wenye & Guo, Zhongyuan & Su, Xiaoxiang & Liu, Yongcun & Meng, Hao & Yu, Xiang & Qin, Gang & Chen, Qiang & Yang, Jia, 2023. "Tough, highly adaptable and self-healing integrated supercapacitor based on double network gel polymer electrolyte," Energy, Elsevier, vol. 264(C).

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