Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteries
The rise in lithium battery use has triggered concerns regarding safety due to flammable liquid electrolytes. Ionic liquids (ILs) present an alternative, offering low volatility and high stability. This study explores novel choline-based ILs incorporated into a polymer matrix to synthesise ionic liq...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Journal of Ionic Liquids |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772422025000011 |
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| _version_ | 1841544003900669952 |
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| author | Tommy Hoong Wy Lee Phei Li Lau Ianatul Khoiroh |
| author_facet | Tommy Hoong Wy Lee Phei Li Lau Ianatul Khoiroh |
| author_sort | Tommy Hoong Wy Lee |
| collection | DOAJ |
| description | The rise in lithium battery use has triggered concerns regarding safety due to flammable liquid electrolytes. Ionic liquids (ILs) present an alternative, offering low volatility and high stability. This study explores novel choline-based ILs incorporated into a polymer matrix to synthesise ionic liquid gel polymer electrolytes (GPEs). Structural confirmation via Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy verified successful synthesis, while the thermogravimetric analyzer (TGA) revealed their promising thermal stability. GPEs demonstrated remarkable flammability resistance compared to commercial separators. Electrochemical assessments, including electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), and galvanostatic charge-discharge (GCD), showcased high ionic conductivities and electrochemical stability. Transference numbers and dendrite growth analysis further underscored their excellent performance. Specifically, GPEs comprising 70 % propionyl choline bis(trifluoromethanesulfonyl)imide within a polymer matrix, poly(vinylidene fluoride)-co-hexafluoropropylene (PVDF-HFP), exhibited exceptional conductivity and transference numbers, positioning them as strong candidates for safer and more efficient lithium-ion battery electrolytes. |
| format | Article |
| id | doaj-art-9120dc1ebb014ba287acfe66938a0978 |
| institution | Kabale University |
| issn | 2772-4220 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Ionic Liquids |
| spelling | doaj-art-9120dc1ebb014ba287acfe66938a09782025-01-13T04:19:19ZengElsevierJournal of Ionic Liquids2772-42202025-06-0151100132Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteriesTommy Hoong Wy Lee0Phei Li Lau1Ianatul Khoiroh2Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, MalaysiaDepartment of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, MalaysiaCorresponding author.; Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, MalaysiaThe rise in lithium battery use has triggered concerns regarding safety due to flammable liquid electrolytes. Ionic liquids (ILs) present an alternative, offering low volatility and high stability. This study explores novel choline-based ILs incorporated into a polymer matrix to synthesise ionic liquid gel polymer electrolytes (GPEs). Structural confirmation via Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy verified successful synthesis, while the thermogravimetric analyzer (TGA) revealed their promising thermal stability. GPEs demonstrated remarkable flammability resistance compared to commercial separators. Electrochemical assessments, including electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), and galvanostatic charge-discharge (GCD), showcased high ionic conductivities and electrochemical stability. Transference numbers and dendrite growth analysis further underscored their excellent performance. Specifically, GPEs comprising 70 % propionyl choline bis(trifluoromethanesulfonyl)imide within a polymer matrix, poly(vinylidene fluoride)-co-hexafluoropropylene (PVDF-HFP), exhibited exceptional conductivity and transference numbers, positioning them as strong candidates for safer and more efficient lithium-ion battery electrolytes.http://www.sciencedirect.com/science/article/pii/S2772422025000011Ionic liquid gel polymer electrolytesStructural confirmationElectrochemical assessmentsLithium-ion battery |
| spellingShingle | Tommy Hoong Wy Lee Phei Li Lau Ianatul Khoiroh Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteries Journal of Ionic Liquids Ionic liquid gel polymer electrolytes Structural confirmation Electrochemical assessments Lithium-ion battery |
| title | Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteries |
| title_full | Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteries |
| title_fullStr | Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteries |
| title_full_unstemmed | Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteries |
| title_short | Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteries |
| title_sort | bio inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium ion batteries |
| topic | Ionic liquid gel polymer electrolytes Structural confirmation Electrochemical assessments Lithium-ion battery |
| url | http://www.sciencedirect.com/science/article/pii/S2772422025000011 |
| work_keys_str_mv | AT tommyhoongwylee bioinspirednovelcholineesterionicliquidgelpolymerelectrolytesforsaferlithiumionbatteries AT pheililau bioinspirednovelcholineesterionicliquidgelpolymerelectrolytesforsaferlithiumionbatteries AT ianatulkhoiroh bioinspirednovelcholineesterionicliquidgelpolymerelectrolytesforsaferlithiumionbatteries |