Gel Polymer Electrolytes for Lithium-Ion Batteries Enabled by Photo Crosslinked Polymer Network
We demonstrate a gel polymer electrolyte (GPE) featuring a crosslinked polymer matrix formed by poly(ethylene glycol) diacrylate (PEGDA) and dipentaerythritol hexaacrylate (DPHA) using the radical photo initiator via ultraviolet (UV) photopolymerization for lithium-ion batteries. The two monomers wi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Gels |
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| Online Access: | https://www.mdpi.com/2310-2861/9/12/975 |
| _version_ | 1827574724197089280 |
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| author | Kyeongsik Kim Wookil Chae Jaehyeon Kim Choongik Kim Taeshik Earmme |
| author_facet | Kyeongsik Kim Wookil Chae Jaehyeon Kim Choongik Kim Taeshik Earmme |
| author_sort | Kyeongsik Kim |
| collection | DOAJ |
| description | We demonstrate a gel polymer electrolyte (GPE) featuring a crosslinked polymer matrix formed by poly(ethylene glycol) diacrylate (PEGDA) and dipentaerythritol hexaacrylate (DPHA) using the radical photo initiator via ultraviolet (UV) photopolymerization for lithium-ion batteries. The two monomers with acrylate functional groups undergo chemical crosslinking, resulting in a three-dimensional structure capable of absorbing liquid electrolytes to form a gel. The GPE system was strategically designed by varying the ratios between the main polymer backbone (PEGDA) and the crosslinker (DPHA) to achieve an optimal gel polymer electrolyte network. The resulting GPE exhibited enhanced thermal stability compared to conventional liquid electrolytes (LE) and demonstrated high ionic conductivity (1.40 mS/cm) with a high lithium transference number of 0.65. Moreover, the obtained GPE displayed exceptional cycle performance, maintaining a higher capacity retention (85.2%) comparable to the cell with LE (79.3%) after 200 cycles. |
| first_indexed | 2024-03-08T20:45:08Z |
| format | Article |
| id | doaj.art-d5860474d13241918c22ae33741fecf9 |
| institution | Directory Open Access Journal |
| issn | 2310-2861 |
| language | English |
| last_indexed | 2024-03-08T20:45:08Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj.art-d5860474d13241918c22ae33741fecf92023-12-22T14:10:48ZengMDPI AGGels2310-28612023-12-0191297510.3390/gels9120975Gel Polymer Electrolytes for Lithium-Ion Batteries Enabled by Photo Crosslinked Polymer NetworkKyeongsik Kim0Wookil Chae1Jaehyeon Kim2Choongik Kim3Taeshik Earmme4Department of Chemical Engineering, Hongik University, Seoul 04066, Republic of KoreaDepartment of Chemical Engineering, Hongik University, Seoul 04066, Republic of KoreaDepartment of Chemical Engineering, Hongik University, Seoul 04066, Republic of KoreaDepartment of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of KoreaDepartment of Chemical Engineering, Hongik University, Seoul 04066, Republic of KoreaWe demonstrate a gel polymer electrolyte (GPE) featuring a crosslinked polymer matrix formed by poly(ethylene glycol) diacrylate (PEGDA) and dipentaerythritol hexaacrylate (DPHA) using the radical photo initiator via ultraviolet (UV) photopolymerization for lithium-ion batteries. The two monomers with acrylate functional groups undergo chemical crosslinking, resulting in a three-dimensional structure capable of absorbing liquid electrolytes to form a gel. The GPE system was strategically designed by varying the ratios between the main polymer backbone (PEGDA) and the crosslinker (DPHA) to achieve an optimal gel polymer electrolyte network. The resulting GPE exhibited enhanced thermal stability compared to conventional liquid electrolytes (LE) and demonstrated high ionic conductivity (1.40 mS/cm) with a high lithium transference number of 0.65. Moreover, the obtained GPE displayed exceptional cycle performance, maintaining a higher capacity retention (85.2%) comparable to the cell with LE (79.3%) after 200 cycles.https://www.mdpi.com/2310-2861/9/12/975gel polymer electrolyteslithium-ion batteriesUV polymerizationquasi-solid-state electrolytes |
| spellingShingle | Kyeongsik Kim Wookil Chae Jaehyeon Kim Choongik Kim Taeshik Earmme Gel Polymer Electrolytes for Lithium-Ion Batteries Enabled by Photo Crosslinked Polymer Network Gels gel polymer electrolytes lithium-ion batteries UV polymerization quasi-solid-state electrolytes |
| title | Gel Polymer Electrolytes for Lithium-Ion Batteries Enabled by Photo Crosslinked Polymer Network |
| title_full | Gel Polymer Electrolytes for Lithium-Ion Batteries Enabled by Photo Crosslinked Polymer Network |
| title_fullStr | Gel Polymer Electrolytes for Lithium-Ion Batteries Enabled by Photo Crosslinked Polymer Network |
| title_full_unstemmed | Gel Polymer Electrolytes for Lithium-Ion Batteries Enabled by Photo Crosslinked Polymer Network |
| title_short | Gel Polymer Electrolytes for Lithium-Ion Batteries Enabled by Photo Crosslinked Polymer Network |
| title_sort | gel polymer electrolytes for lithium ion batteries enabled by photo crosslinked polymer network |
| topic | gel polymer electrolytes lithium-ion batteries UV polymerization quasi-solid-state electrolytes |
| url | https://www.mdpi.com/2310-2861/9/12/975 |
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