Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application
Biopolymer electrolytes consisting of poly(vinyl alcohol) (PVA) and lithium trifluoromethanesulfonate (LiTf) were prepared by solution casting technique. The ionic conductivity of polymer electrolyte is increased about seven orders of magnitude which is from 3.53 ± 0.01 × 10−10 to 2.87 ± 0.01 × 10−3...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
Springer Verlag (Germany)
2019
|
| Subjects: |
| _version_ | 1796961796929617920 |
|---|---|
| author | Tan, H.W. Ramesh, Subramaniam Liew, Chiam Wen |
| author_facet | Tan, H.W. Ramesh, Subramaniam Liew, Chiam Wen |
| author_sort | Tan, H.W. |
| collection | UM |
| description | Biopolymer electrolytes consisting of poly(vinyl alcohol) (PVA) and lithium trifluoromethanesulfonate (LiTf) were prepared by solution casting technique. The ionic conductivity of polymer electrolyte is increased about seven orders of magnitude which is from 3.53 ± 0.01 × 10−10 to 2.87 ± 0.01 × 10−3 S cm−1 at ambient temperature with the addition of 40 wt% of LiTf. All the polymer electrolytes follow Vogel–Tamman–Fulcher (VTF) relationship which is associated with free volume theory. The complexation between PVA and LiTf salt is proven by Fourier transform infrared spectroscopy (FTIR) study. The glass transition temperature (Tg) of polymer electrolyte was decreased with the addition of LiTf as shown in differential scanning calorimetry (DSC) thermogram. The potential difference of the polymer electrolyte showed wider range, up to 4.6 V, as proven in linear sweep voltammetry (LSV) study. Electric double-layer capacitor (EDLC) cell was assembled using prepared polymer electrolytes and two identical activated carbon-based electrodes and its electrochemical properties were also investigated. The specific capacitance of 0.37 F g−1 was obtained for the EDLC with the most conducting polymer electrolyte. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. |
| first_indexed | 2024-03-06T05:59:30Z |
| format | Article |
| id | um.eprints-23308 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:59:30Z |
| publishDate | 2019 |
| publisher | Springer Verlag (Germany) |
| record_format | dspace |
| spelling | um.eprints-233082020-01-06T02:09:56Z http://eprints.um.edu.my/23308/ Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application Tan, H.W. Ramesh, Subramaniam Liew, Chiam Wen Q Science (General) QC Physics Biopolymer electrolytes consisting of poly(vinyl alcohol) (PVA) and lithium trifluoromethanesulfonate (LiTf) were prepared by solution casting technique. The ionic conductivity of polymer electrolyte is increased about seven orders of magnitude which is from 3.53 ± 0.01 × 10−10 to 2.87 ± 0.01 × 10−3 S cm−1 at ambient temperature with the addition of 40 wt% of LiTf. All the polymer electrolytes follow Vogel–Tamman–Fulcher (VTF) relationship which is associated with free volume theory. The complexation between PVA and LiTf salt is proven by Fourier transform infrared spectroscopy (FTIR) study. The glass transition temperature (Tg) of polymer electrolyte was decreased with the addition of LiTf as shown in differential scanning calorimetry (DSC) thermogram. The potential difference of the polymer electrolyte showed wider range, up to 4.6 V, as proven in linear sweep voltammetry (LSV) study. Electric double-layer capacitor (EDLC) cell was assembled using prepared polymer electrolytes and two identical activated carbon-based electrodes and its electrochemical properties were also investigated. The specific capacitance of 0.37 F g−1 was obtained for the EDLC with the most conducting polymer electrolyte. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. Springer Verlag (Germany) 2019 Article PeerReviewed Tan, H.W. and Ramesh, Subramaniam and Liew, Chiam Wen (2019) Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application. Ionics, 25 (10). pp. 4861-4874. ISSN 0947-7047, DOI https://doi.org/10.1007/s11581-019-03017-1 <https://doi.org/10.1007/s11581-019-03017-1>. https://doi.org/10.1007/s11581-019-03017-1 doi:10.1007/s11581-019-03017-1 |
| spellingShingle | Q Science (General) QC Physics Tan, H.W. Ramesh, Subramaniam Liew, Chiam Wen Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application |
| title | Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application |
| title_full | Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application |
| title_fullStr | Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application |
| title_full_unstemmed | Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application |
| title_short | Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application |
| title_sort | electrical thermal and structural studies on highly conducting additive free biopolymer electrolytes for electric double layer capacitor application |
| topic | Q Science (General) QC Physics |
| work_keys_str_mv | AT tanhw electricalthermalandstructuralstudiesonhighlyconductingadditivefreebiopolymerelectrolytesforelectricdoublelayercapacitorapplication AT rameshsubramaniam electricalthermalandstructuralstudiesonhighlyconductingadditivefreebiopolymerelectrolytesforelectricdoublelayercapacitorapplication AT liewchiamwen electricalthermalandstructuralstudiesonhighlyconductingadditivefreebiopolymerelectrolytesforelectricdoublelayercapacitorapplication |