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. 2019 Feb 16;11(2):345.
doi: 10.3390/polym11020345.

Charge-Discharge Characteristics of Textile Energy Storage Devices Having Different PEDOT:PSS Ratios and Conductive Yarns Configuration

Ida Nuramdhani  1   2 , Manoj Jose  3   4 , Pieter Samyn  5   6 , Peter Adriaensens  7   8 , Benny Malengier  9 , Wim Deferme  10   11 , Gilbert De Mey  12 , Lieva Van Langenhove  13
Affiliations

Charge-Discharge Characteristics of Textile Energy Storage Devices Having Different PEDOT:PSS Ratios and Conductive Yarns Configuration

Ida Nuramdhani et al. Polymers (Basel). .

Abstract

Conductive polymer PEDOT:PSS, sandwiched between two conductive yarns, has been proven to have capacitive behavior in our textile energy storage devices. Full understanding of its underlying mechanism is still intriguing. The effect of the PEDOT to PSS ratio and the configuration of the electrode yarns are the focus of this study. Three commercial PEDOT:PSS yarns, Clevios P-VP-AI-4083, Ossila AI 4083, and Orgacon ICP 1050, as well as stainless steel and silver-coated polybenzoxazole (Ag/PBO) yarns, in various combinations, were used as solid electrolytes and electrodes, respectively. Analyses with NMR, ICP-OES, TGA, and resistivity measurement were employed to characterize the PEDOT:PSS. The device charge-discharge performance was measured by the Arduino microcontroller. Clevios and Ossila were found to have identical characteristics with a similar ratio, that is, 1:5.26, hence a higher resistivity of 1000 Ω.cm, while Orgacon had a lower PEDOT to PSS ratio, that is, 1:4.65, with a lower resistivity of 0.25⁻1 Ω.cm. The thermal stability of PEDOT:PSS up to 250 °C was proven. Devices with PEDOT:PSS having lower conductivity, such as Clevios P-VP-AI-4083 or Ossila AI 4083, showed capacitive behavior. For a better charge-discharge profile, it is also suggested that the PEDOT to electrode resistance should be low. These results led to a conclusion that a larger ratio of PEDOT to PSS, having higher resistivity, is more desirable, but further research is needed.

Keywords: Ag/PBO; PEDOT:PSS; conductive polymer; solid electrolyte; stainless steel; textile energy storage device.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Drops of water and PEDOT:PSS polymer dispersion on (a) untreated fabric and (b) water repellent (WR)-treated fabric.
Figure 2
Figure 2
(a) Example of the actual textile energy device used in this experiment and (b) Schematic design of the textile energy storage device. Note that the electrodes used in the above device were a pair of stainless steel/stainless steel yarns. Other pairs of electrode yarns, such as stainless steel/silver coated polybenzoxazole (Ag-PBO) and Ag-PBO/Ag-PBO, were also used.
Figure 3
Figure 3
Schematic diagram of charge-discharge measurements set up.
Figure 4
Figure 4
Charge-discharge profile of the water repellent- versus non-water repellent-pre-treated devices (“Volt diff” shows the difference of charge-discharge voltage of the two compared devices recorded along the measured times).
Figure 5
Figure 5
1H NMR spectra of PEDOT:PSS (a) Clevios and Ossila (b) Orgacon.
Figure 6
Figure 6
TGA Curves of Clevios, Ossila, and Orgacon PEDOT:PSS.
Figure 7
Figure 7
Charge-discharge profiles of a device along the storage in ambient condition.
Figure 8
Figure 8
Charge-discharge characteristics of devices of different types of PEDOT:PSS with (a) SS/SS electrodes and (b) Ag-PBO/Ag-PBO electrodes, each charged at 3 V.
Figure 9
Figure 9
Charge-discharge characteristics of devices of different types of PEDOT:PSS using SS/Ag-PBO electrodes with different polarity of the applied voltage: (a) SS(+3 V)/Ag-PBO(0 V) and (b) SS(0 V)/Ag-PBO(+3 V).
Figure 10
Figure 10
The hypothetical schematic circuit of the Orgacon ICP 1050-containing device with no capacitive behavior.
Figure 11
Figure 11
Possible configuration of the electronic system in the TESD cell with capacitive behavior.
See this image and copyright information in PMC

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