Plasticized Ionic Liquid Crystal Elastomer Emulsion-Based Polymer Electrolyte for Lithium-Ion Batteries
The development and electrochemical characteristics of ionic liquid crystal elastomers (iLCEs) are described for use as electrolyte components in lithium-ion batteries. The unique combination of elastic and liquid crystal properties in iLCEs grants them robust mechanical attributes and structural or...
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MDPI AG
2025-03-01
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| author | Zakaria Siddiquee Hyunsang Lee Weinan Xu Thein Kyu Antal Jákli |
| author_facet | Zakaria Siddiquee Hyunsang Lee Weinan Xu Thein Kyu Antal Jákli |
| author_sort | Zakaria Siddiquee |
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| description | The development and electrochemical characteristics of ionic liquid crystal elastomers (iLCEs) are described for use as electrolyte components in lithium-ion batteries. The unique combination of elastic and liquid crystal properties in iLCEs grants them robust mechanical attributes and structural ordering. Specifically, the macroscopic alignment of phase-segregated, ordered nanostructures in iLCEs serves as an ion pathway, which can be solidified through photopolymerization to create ion-conductive solid-state polymer lithium batteries (SSPLBs) with high ionic conductivity (1.76 × 10<sup>−3</sup> S cm<sup>−1</sup> at 30 °C), and a high (0.61) transference number. Additionally, the rubbery state ensures good interfacial contact with electrodes that inhibits lithium dendrite formation. Furthermore, in contrast to liquid electrolytes, the iLCE shrinks upon heating, thus preventing any overheating-related explosions. The Li/LiFePO<sub>4</sub> (LFP) cells fabricated using iLCE-based solid electrolytes show excellent cycling stability with a discharge capacity of ~124 mAh g<sup>−1</sup> and a coulombic efficiency close to 100%. These results are promising for the practical application of iLCE-based SSPLBs. |
| format | Article |
| id | doaj-art-8a180e2869974f3097e41cf3eaabed23 |
| institution | OA Journals |
| issn | 2313-0105 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
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| series | Batteries |
| spelling | doaj-art-8a180e2869974f3097e41cf3eaabed232025-08-20T02:11:12ZengMDPI AGBatteries2313-01052025-03-0111310610.3390/batteries11030106Plasticized Ionic Liquid Crystal Elastomer Emulsion-Based Polymer Electrolyte for Lithium-Ion BatteriesZakaria Siddiquee0Hyunsang Lee1Weinan Xu2Thein Kyu3Antal Jákli4Department of Physics, Kent State University, Kent, OH 44242, USASchool of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325, USASchool of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325, USASchool of Polymer Science and Polymer Engineering, University of Akron, Akron, OH 44325, USAMaterials Science Graduate Program and Advanced Materials and Liquid Crystal Institute, Kent, OH 44242, USAThe development and electrochemical characteristics of ionic liquid crystal elastomers (iLCEs) are described for use as electrolyte components in lithium-ion batteries. The unique combination of elastic and liquid crystal properties in iLCEs grants them robust mechanical attributes and structural ordering. Specifically, the macroscopic alignment of phase-segregated, ordered nanostructures in iLCEs serves as an ion pathway, which can be solidified through photopolymerization to create ion-conductive solid-state polymer lithium batteries (SSPLBs) with high ionic conductivity (1.76 × 10<sup>−3</sup> S cm<sup>−1</sup> at 30 °C), and a high (0.61) transference number. Additionally, the rubbery state ensures good interfacial contact with electrodes that inhibits lithium dendrite formation. Furthermore, in contrast to liquid electrolytes, the iLCE shrinks upon heating, thus preventing any overheating-related explosions. The Li/LiFePO<sub>4</sub> (LFP) cells fabricated using iLCE-based solid electrolytes show excellent cycling stability with a discharge capacity of ~124 mAh g<sup>−1</sup> and a coulombic efficiency close to 100%. These results are promising for the practical application of iLCE-based SSPLBs.https://www.mdpi.com/2313-0105/11/3/106lithium-batterysolid-state batterypolymer electrolyteliquid crystalionic liquid crystal elastomerplasticizer |
| spellingShingle | Zakaria Siddiquee Hyunsang Lee Weinan Xu Thein Kyu Antal Jákli Plasticized Ionic Liquid Crystal Elastomer Emulsion-Based Polymer Electrolyte for Lithium-Ion Batteries Batteries lithium-battery solid-state battery polymer electrolyte liquid crystal ionic liquid crystal elastomer plasticizer |
| title | Plasticized Ionic Liquid Crystal Elastomer Emulsion-Based Polymer Electrolyte for Lithium-Ion Batteries |
| title_full | Plasticized Ionic Liquid Crystal Elastomer Emulsion-Based Polymer Electrolyte for Lithium-Ion Batteries |
| title_fullStr | Plasticized Ionic Liquid Crystal Elastomer Emulsion-Based Polymer Electrolyte for Lithium-Ion Batteries |
| title_full_unstemmed | Plasticized Ionic Liquid Crystal Elastomer Emulsion-Based Polymer Electrolyte for Lithium-Ion Batteries |
| title_short | Plasticized Ionic Liquid Crystal Elastomer Emulsion-Based Polymer Electrolyte for Lithium-Ion Batteries |
| title_sort | plasticized ionic liquid crystal elastomer emulsion based polymer electrolyte for lithium ion batteries |
| topic | lithium-battery solid-state battery polymer electrolyte liquid crystal ionic liquid crystal elastomer plasticizer |
| url | https://www.mdpi.com/2313-0105/11/3/106 |
| work_keys_str_mv | AT zakariasiddiquee plasticizedionicliquidcrystalelastomeremulsionbasedpolymerelectrolyteforlithiumionbatteries AT hyunsanglee plasticizedionicliquidcrystalelastomeremulsionbasedpolymerelectrolyteforlithiumionbatteries AT weinanxu plasticizedionicliquidcrystalelastomeremulsionbasedpolymerelectrolyteforlithiumionbatteries AT theinkyu plasticizedionicliquidcrystalelastomeremulsionbasedpolymerelectrolyteforlithiumionbatteries AT antaljakli plasticizedionicliquidcrystalelastomeremulsionbasedpolymerelectrolyteforlithiumionbatteries |