Printable Gel Polymer Electrolytes for Solid-State Printed Supercapacitorsopen access
- Authors
- Seol, Myeong-Lok; Nam, Inho; Sadatian, Ellie; Dutta, Nabanita; Han, Jin-Woo; Meyyappan, M.
- Issue Date
- Jan-2021
- Publisher
- MDPI
- Keywords
- solid-state supercapacitors; printing; gel polymer electrolyte; in-plane manufacturing
- Citation
- MATERIALS, v.14, no.2, pp 1 - 10
- Pages
- 10
- Journal Title
- MATERIALS
- Volume
- 14
- Number
- 2
- Start Page
- 1
- End Page
- 10
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/62618
- DOI
- 10.3390/ma14020316
- ISSN
- 1996-1944
1996-1944
- Abstract
- Supercapacitors prepared by printing allow a simple manufacturing process, easy customization, high material efficiency and wide substrate compatibility. While printable active layers have been widely studied, printable electrolytes have not been thoroughly investigated despite their importance. A printable electrolyte should not only have high ionic conductivity, but also proper viscosity, small particle size and chemical stability. Here, gel-polymer electrolytes (GPE) that are compatible with printing were developed and their electrochemical performance was analyzed. Five GPE formulations based on various polymer-conductive substance combinations were investigated. Among them, GPE made of polyvinylidene difluoride (PVDF) polymer matrix and LiClO4 conductive substance exhibited the best electrochemical performance, with a gravimetric capacitance of 176.4 F/g and areal capacitance of 152.7 mF/cm(2) at a potential scan rate of 10 mV/s. The in-depth study of the in-plane solid-state supercapacitors based on various printed GPEs suggests that printable electrolytes provide desirable attributes for high-performance printed energy devices such as supercapacitors, batteries, fuel cells and dye-sensitized solar cells.
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