Inert filler selection strategies in Li-ion gel polymer electrolytes
The main role of inert fillers in polymer electrolytes is to enhance ionic conductivity. However, lithium ions in gel polymer electrolytes (GPEs) conduct in liquid solvent rather than along the polymer chains. So far, the main role of inert fillers in improving the electrochemical performance of GPE...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/170913 |
| _version_ | 1811690396752805888 |
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| author | Pan, Jun Zhao, Pei Yao, Heliang Hu, Lulu Fan, Hong Jin |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Pan, Jun Zhao, Pei Yao, Heliang Hu, Lulu Fan, Hong Jin |
| author_sort | Pan, Jun |
| collection | NTU |
| description | The main role of inert fillers in polymer electrolytes is to enhance ionic conductivity. However, lithium ions in gel polymer electrolytes (GPEs) conduct in liquid solvent rather than along the polymer chains. So far, the main role of inert fillers in improving the electrochemical performance of GPEs is still unclear. Here, various low-cost and common inert fillers (Al2O3, SiO2, TiO2, ZrO2) are introduced into GPEs to study their effects on Li-ion polymer batteries. It is found that the addition of inert fillers has different effects on ionic conductivity, mechanical strength, thermal stability, and, dominantly, interfacial properties. Compared with other gel electrolytes containing SiO2, TiO2, or ZrO2 fillers, those with Al2O3 fillers exhibit the most favorable performance. The high performance is ascribed to the interaction between the surface functional groups of Al2O3 and LiNi0.8Co0.1Mn0.1O2, which alleviates the decomposition of the organic solvent by the cathode, resulting in the formation of a high-quality Li+ conductor interfacial layer. This study provides an important reference for the selection of fillers in GPEs, surface modification of separators, and cathode surface coating. |
| first_indexed | 2024-10-01T06:03:20Z |
| format | Journal Article |
| id | ntu-10356/170913 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:03:20Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1709132023-10-09T15:35:07Z Inert filler selection strategies in Li-ion gel polymer electrolytes Pan, Jun Zhao, Pei Yao, Heliang Hu, Lulu Fan, Hong Jin School of Physical and Mathematical Sciences Science::Physics Inert Fillers Gel Polymer Electrolytes The main role of inert fillers in polymer electrolytes is to enhance ionic conductivity. However, lithium ions in gel polymer electrolytes (GPEs) conduct in liquid solvent rather than along the polymer chains. So far, the main role of inert fillers in improving the electrochemical performance of GPEs is still unclear. Here, various low-cost and common inert fillers (Al2O3, SiO2, TiO2, ZrO2) are introduced into GPEs to study their effects on Li-ion polymer batteries. It is found that the addition of inert fillers has different effects on ionic conductivity, mechanical strength, thermal stability, and, dominantly, interfacial properties. Compared with other gel electrolytes containing SiO2, TiO2, or ZrO2 fillers, those with Al2O3 fillers exhibit the most favorable performance. The high performance is ascribed to the interaction between the surface functional groups of Al2O3 and LiNi0.8Co0.1Mn0.1O2, which alleviates the decomposition of the organic solvent by the cathode, resulting in the formation of a high-quality Li+ conductor interfacial layer. This study provides an important reference for the selection of fillers in GPEs, surface modification of separators, and cathode surface coating. Ministry of Education (MOE) Submitted/Accepted version This work is financially supported from the Ministry of Education, Singapore, by its Academic Research Fund Tier 2 (MOE-T2EP50121-0006), and by the National Nature Science Foundation of China (No. 22209199). 2023-10-06T08:11:25Z 2023-10-06T08:11:25Z 2023 Journal Article Pan, J., Zhao, P., Yao, H., Hu, L. & Fan, H. J. (2023). Inert filler selection strategies in Li-ion gel polymer electrolytes. ACS Applied Materials & Interfaces. https://dx.doi.org/10.1021/acsami.3c05105 1944-8244 https://hdl.handle.net/10356/170913 10.1021/acsami.3c05105 37279101 2-s2.0-85162851480 en MOE-T2EP50121-0006 ACS Applied Materials & Interfaces © 2023 American Chemical Society. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1021/acsami.3c05105. application/pdf |
| spellingShingle | Science::Physics Inert Fillers Gel Polymer Electrolytes Pan, Jun Zhao, Pei Yao, Heliang Hu, Lulu Fan, Hong Jin Inert filler selection strategies in Li-ion gel polymer electrolytes |
| title | Inert filler selection strategies in Li-ion gel polymer electrolytes |
| title_full | Inert filler selection strategies in Li-ion gel polymer electrolytes |
| title_fullStr | Inert filler selection strategies in Li-ion gel polymer electrolytes |
| title_full_unstemmed | Inert filler selection strategies in Li-ion gel polymer electrolytes |
| title_short | Inert filler selection strategies in Li-ion gel polymer electrolytes |
| title_sort | inert filler selection strategies in li ion gel polymer electrolytes |
| topic | Science::Physics Inert Fillers Gel Polymer Electrolytes |
| url | https://hdl.handle.net/10356/170913 |
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