Achieving enhanced multifunctional performance for structural composite supercapacitors by reinforcing interfaces with polymer coating

Liu，Xu1,2; Li，Jianxun1,2; Liu，Yuehua1,2; Zhou，Limin1,2

2024-07-01

10.1016/j.jcis.2024.03.071

Journal of Colloid and Interface Science   影响因子和分区

0021-9797

1095-7103

Carbon fiber structural composite supercapacitors possess the multifunctionality of storing electrochemical energy and withstanding mechanical loads simultaneously, attracting increased attention in electric vehicles, drones, and aircraft sectors. A polymer-based coating was meticulously constructed at the electrode/electrolyte interface to enhance adhesion and stability between active materials and the carbon fiber fabric collector under diverse conditions, especially mechanical stress. Mechanical testing and corresponding physical characterization substantiated the superior performance of the polymer coating. With the protective polymer coating, the optimized structural composite Zn-ion supercapacitor (SZSC), consisting of carbon fiber@active carbon-P (CF@AC-P) cathode, ionogel electrolyte, and Zn anode, displayed a maximum energy density of 164.6 mWh kg, at power density of 563.3 mW kg. Moreover, the optimized SZSC demonstrated stable operation over more than 8000 cycles at 0.3 mA cm without capacity degradation. The optimized SZSC exhibited a tensile strength of 399.7 MPa and Young's modulus of 11.5 GPa. Furthermore, employing vacuum infusion techniques, the fabricated three-dimensional (3D) wing skin model shell and tube shell curved-surface structural composite Zn-ion supercapacitor component composites showcased exceptional electrochemical performance. These achievements further validate the practicality of 3D multifunctional composites. Consequently, this research presented a practical and straightforward interface engineering approach to develop multifunctional structural devices with remarkable electrochemical and mechanical properties.

Carbon fiber composite Energy storage Interface stability Mechanical properties Structural composite supercapacitor

SCI ; EI

英语

第一 ; 通讯

20241415833573

Carbon fibers ; Elastic moduli ; Electrodes ; Electrolytes ; Mechanical testing ; Plastic coatings ; Tensile strength

Electric Batteries and Fuel Cells:702 ; Electric Components:704.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Coating Materials:813.2 ; Polymer Applications:817.2 ; Mechanical Variables Measurements:943.2 ; Materials Science:951

CHEMISTRY

2-s2.0-85188929113

Scopus

1.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shen Zhen,518055,China
2.Shenzhen Key Laboratory of Intelligent Manufacturing for Continuous Carbon Fiber Reinforced Composites,Southern University of Science and Technology,Shenzhen,518055,China

Liu，Xu,Li，Jianxun,Liu，Yuehua,et al. Achieving enhanced multifunctional performance for structural composite supercapacitors by reinforcing interfaces with polymer coating[J]. Journal of Colloid and Interface Science,2024,665:603-612.

Liu，Xu,Li，Jianxun,Liu，Yuehua,&Zhou，Limin.(2024).Achieving enhanced multifunctional performance for structural composite supercapacitors by reinforcing interfaces with polymer coating.Journal of Colloid and Interface Science,665,603-612.

Liu，Xu,et al."Achieving enhanced multifunctional performance for structural composite supercapacitors by reinforcing interfaces with polymer coating".Journal of Colloid and Interface Science 665(2024):603-612.