MXene/PVA Fiber-based Supercapacitor with Stretchability for Wearable Energy Storage 


Vol. 23,  No. 11, pp. 2983-2993, Nov.  2022
10.1007/s12221-022-4389-4


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  Abstract

MXene fiber-based supercapacitor exhibits a great potential for wearable energy storage devices with a large surface area, good conductive, and higher power density. However, MXene flakes are difficult to spin independently due to the non-liquid crystal structure. In the report, we fabricated freestanding MXene/PVA fibers with good stretchability and impressive electrochemical properties for fiber-based supercapacitors by a simple wet spinning method. The tensile strength of the MXene/PVA fibers is significantly enhanced compared with pure PVA fibers for the concentration of MXene for around 5-20 wt.%. The elongation of the MXene/PVA fiber can reach 48 %, even if the MXene concentration increase to 25 wt.%. MXene flakes also increase the thermal stability of hybrid fibers compared with pure PVA fibers. MXene/PVA fiber-based supercapacitors act as efficient energy storage devices, which display high gravimetric capacitance (119.3 F g-1), and areal capacitance (130.9 mF cm-2), strong durability in multiple mechanical states, and steady electrochemical behavior after stretching.

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  Cite this article

[IEEE Style]

W. Yu, Y. Li, B. Xin, Z. Lu, "MXene/PVA Fiber-based Supercapacitor with Stretchability for Wearable Energy Storage," Fibers and Polymers, vol. 23, no. 11, pp. 2983-2993, 2022. DOI: 10.1007/s12221-022-4389-4.

[ACM Style]

Wenjie Yu, Yu Li, Binjie Xin, and Zan Lu. 2022. MXene/PVA Fiber-based Supercapacitor with Stretchability for Wearable Energy Storage. Fibers and Polymers, 23, 11, (2022), 2983-2993. DOI: 10.1007/s12221-022-4389-4.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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