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Dynamic Imine Chemistry Enables Paintable Biogel Electrolytes to Shield On-Body Zinc-Ion Batteries from Interfacial Interference

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    Dynamic Imine Chemistry Enables Paintable Biogel Electrolytes to Shield On-Body Zinc-Ion Batteries from Interfacial Interference
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    • Qingjin Fu
      Qingjin Fu
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
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    • Wei Zhang
      Wei Zhang
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
      Christopher Ingold Laboratory, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
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      Orcidhttps://orcid.org/0000-0001-6888-3338
    • Xidie Liu
      Xidie Liu
      Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, P. R. China
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    • Yinna Liu
      Yinna Liu
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
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    • Zhengyang Lei
      Zhengyang Lei
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
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    • Mengtian Zhang
      Mengtian Zhang
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
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    • Haotian Qu
      Haotian Qu
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
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    • Xiao Xiao
      Xiao Xiao
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
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      Orcidhttps://orcid.org/0000-0001-7365-9795
    • Xiongwei Zhong
      Xiongwei Zhong
      Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R. China
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      Orcidhttps://orcid.org/0000-0003-2307-0450
    • Zhexuan Liu
      Zhexuan Liu
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
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    • Peiwu Qin*
      Peiwu Qin
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
      *E-mail: [email protected]
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      Orcidhttps://orcid.org/0000-0002-7829-8973
    • Jun Yang*
      Jun Yang
      Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, P. R. China
      *E-mail: [email protected]
      More by Jun Yang
    • Guangmin Zhou*
      Guangmin Zhou
      Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
      *E-mail: [email protected]
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      Orcidhttps://orcid.org/0000-0002-3629-5686
    Other Access OptionsSupporting Information (7)

    Journal of the American Chemical Society

    Cite this: J. Am. Chem. Soc. 2024, 146, 50, 34950–34961
    Click to copy citationCitation copied!
    https://doi.org/10.1021/jacs.4c14645
    Published December 4, 2024
    Copyright © 2024 American Chemical Society
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    Abstract

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    On-body batteries with hydrogel electrolytes are a pivotal enabling technology to drive bioelectronics for healthcare and sports, yet they are prone to failure due to dynamic interfacial interference, accompanied by e-waste production. Here, dynamic imine chemistry is proposed to design on-electrode paintable biogel electrolytes that feature temperature-controlled reversible phase transition (gelling within 1.5 min) and ultrafast self-healing capability (6 s), establishing a dynamically self-adaptive interface on cyclically deforming electrodes for shielding on-body Zn-ion batteries from interfacial interference. Consequently, the deformed Zn anode shows an exceptional cycling stability of 400 h regardless of the bending radius, and the as-assembled Zn–I2 battery delivers sufficient durability to endure 5000 deformation cycles, together extending to 1300 h and 15 000 deformation cycles via dynamically restarting the interfacial electric field, respectively. Also, the features of recyclability, biodegradation, and biocompatibility make the proposed on-body Zn–I2 batteries appealing in terms of sustainability and biosafety, enabling their successful power supply of heart rate monitors in sports. This work demonstrates the promise of dynamic biogel chemistry for green and biorelated energy-storage systems.

    Copyright © 2024 American Chemical Society

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    Supporting Information

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/jacs.4c14645.

    • Demonstration of the FEM simulation results for stress distribution of the electrode–HE interface during the bending process (MP4)

    • Demonstration of the convenient assembly of on-body batteries enabled by the paintable biogel electrolytes gelling within 1.5 min (MP4)

    • Demonstration of the ultrafast self-healing interface enabled by dynamic imine chemistry (MP4)

    • Demonstration of the conformal contact and dynamic compliance of the pai aC-GE with cyclically deformed electrodes (MP4)

    • Demonstration of the FEM simulation results for the displacement distribution of the electrode–HE interface during the bending process (MP4)

    • Demonstration of interference-free applications of the sustainable on-body ZIBs (MP4)

    • Detailed experimental conditions and finite element simulation, material characterization (mechanics, adhesion, and biocompatibility), electrochemical measurements, additional discussion, performance comparisons, optical images, SEM, AFM, CLSM characterization, and fabrication cost of the pai aC-GEs comparable with the chitosan-Zn electrolyte (PDF)

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    Journal of the American Chemical Society

    Cite this: J. Am. Chem. Soc. 2024, 146, 50, 34950–34961
    Click to copy citationCitation copied!
    https://doi.org/10.1021/jacs.4c14645
    Published December 4, 2024
    Copyright © 2024 American Chemical Society
    Request reuse permissions

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