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Nano Research 2024, 17(3): 1552-1563 https://doi.org/10.1007/s12274-023-6265-y
Research Article | Issue | Published: 20 November 2023

Structural energy storage composites based on modified carbon fiber electrode with metal-organic frame enhancing layered double hydroxide

Show Author's Information Jinrui Ye1,2,  Zhongbao Wang3,  Qin Lei1,2( ),  Lei Sun4( ),  Jinfeng Gu5
School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
Tangshan Research Institute, Beijing Institute of Technology, Tangshan 063000, China
School of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang 110168, China
Department of Stomatology, PLA Strategic Support Force Characteristic Medical Center, Beijing 100101, China
Beijing Electromechanical Engineering Research Institute, Beijing 100074, China
Keywords:
supercapacitor, carbon fiber electrode, structural electrolyte, structural energy storage composites
Topics:
Storage (materials)
Cite this article:
Ye J, Wang Z, Lei Q, et al. Structural energy storage composites based on modified carbon fiber electrode with metal-organic frame enhancing layered double hydroxide. Nano Research, 2024, 17(3): 1552-1563. https://doi.org/10.1007/s12274-023-6265-y
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Abstract Full text About this article

Structural energy storage composites present advantages in simultaneously achieving structural strength and electrochemical properties. Adoption of carbon fiber electrodes and resin structural electrolytes in energy storage composite poses challenges in maintaining good mechanical and electrochemical properties at reasonable cost and effort. Here, we report a simple method to fabricate structural supercapacitor using carbon fiber electrodes (modified by Ni-layered double hydroxide (Ni-LDH) and in-situ growth of Co-metal-organic framework (Co-MOF) in a two-step process denoted as Co-MOF/Ni-LDH@CF) and bicontinuous-phase epoxy resin-based structural electrolyte. Co-MOF/Ni-LDH@CF as electrode material exhibits improved specific capacity (42.45 F·g−1) and cycle performance (93.3% capacity retention after 1000 cycles) in a three-electrode system. The bicontinuous-phase epoxy resin-based structural electrolyte exhibits an ionic conductivity of 3.27 × 10−4 S·cm−1. The fabricated Co-MOF/Ni-LDH@CF/SPE-50 structural supercapacitor has an energy density of 3.21 Wh·kg−1 at a power density of 42.25 W·kg−1, whilst maintaining tensile strength and modulus of 334.6 MPa and 25.2 GPa. These results show practical potential of employing modified commercial carbon fiber electrodes and epoxy resin-based structural electrolytes in structural energy storage applications.


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About this article

Structural energy storage composites based on modified carbon fiber electrode with metal-organic frame enhancing layered double hydroxide

Show Author's information Jinrui Ye1,2, Zhongbao Wang3, Qin Lei1,2( ), Lei Sun4( ), Jinfeng Gu5
School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
Tangshan Research Institute, Beijing Institute of Technology, Tangshan 063000, China
School of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang 110168, China
Department of Stomatology, PLA Strategic Support Force Characteristic Medical Center, Beijing 100101, China
Beijing Electromechanical Engineering Research Institute, Beijing 100074, China

Abstract

Structural energy storage composites present advantages in simultaneously achieving structural strength and electrochemical properties. Adoption of carbon fiber electrodes and resin structural electrolytes in energy storage composite poses challenges in maintaining good mechanical and electrochemical properties at reasonable cost and effort. Here, we report a simple method to fabricate structural supercapacitor using carbon fiber electrodes (modified by Ni-layered double hydroxide (Ni-LDH) and in-situ growth of Co-metal-organic framework (Co-MOF) in a two-step process denoted as Co-MOF/Ni-LDH@CF) and bicontinuous-phase epoxy resin-based structural electrolyte. Co-MOF/Ni-LDH@CF as electrode material exhibits improved specific capacity (42.45 F·g−1) and cycle performance (93.3% capacity retention after 1000 cycles) in a three-electrode system. The bicontinuous-phase epoxy resin-based structural electrolyte exhibits an ionic conductivity of 3.27 × 10−4 S·cm−1. The fabricated Co-MOF/Ni-LDH@CF/SPE-50 structural supercapacitor has an energy density of 3.21 Wh·kg−1 at a power density of 42.25 W·kg−1, whilst maintaining tensile strength and modulus of 334.6 MPa and 25.2 GPa. These results show practical potential of employing modified commercial carbon fiber electrodes and epoxy resin-based structural electrolytes in structural energy storage applications.

Keywords: supercapacitor, carbon fiber electrode, structural electrolyte, structural energy storage composites

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Publication history
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Acknowledgements

Publication history

Received: 21 September 2023
Revised: 11 October 2023
Accepted: 12 October 2023
Published: 20 November 2023
Issue date: March 2024

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

This work is supported by fund of the National Natural Science Foundation of China (No. 12172024).

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