Flexible supercapacitors (FSCs) have attracted extensive attention due to their lightweight, easy integration, high power density, fast charge/discharge rate, and safe features. Printed FSC has provided an economical and simple solution for the fabrication of FSCs different from the traditional manufacturing methods. The successful preparation of printed FSCs mainly depends on the formulating of functional inks and designing of innovative electrode materials. Here, we reviewed the recent development of the ink's formulation principle, printable electrode materials, and integrated application of FSCs devices. The inks with excellent rheological properties, acquired by tuning the components (including binders, additives and solvents), are first introduced to match different printing techniques. The design of printable electrode materials is also highlighted, focusing on electrical double-layer capacitive carbons, pseudocapacitive materials (metal oxides, conducting polymer, etc.), and the newly emerging materials (MXenes, etc.). We concluded that 3D printing and new printable electrode materials will be key in successfully designing next-generation printed FSC with high energy and high power, and thus offer general guidelines to its integrated applications.
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June 2021
Review Article|
June 08 2021
Printed flexible supercapacitor: Ink formulation, printable electrode materials and applications
Jing Liang;
Jing Liang
1
Laboratory of Printable Functional Materials and Printed Electronics, School of Printing and Packaging, Wuhan University
, Wuhan 430072, People's Republic of China
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Changzhong Jiang;
Changzhong Jiang
2
College of Materials Science and Engineering, Hunan University
, Changsha 410000, People's Republic of China
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Wei Wu
Wei Wu
a)
1
Laboratory of Printable Functional Materials and Printed Electronics, School of Printing and Packaging, Wuhan University
, Wuhan 430072, People's Republic of China
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Rev. 8, 021319 (2021)
Article history
Received:
February 23 2021
Accepted:
April 30 2021
Citation
Jing Liang, Changzhong Jiang, Wei Wu; Printed flexible supercapacitor: Ink formulation, printable electrode materials and applications. Appl. Phys. Rev. 1 June 2021; 8 (2): 021319. https://doi.org/10.1063/5.0048446
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