Academic Journal
Impact of fabrication methods on binder distribution and charge transport in composite cathodes of all-solid-state batteries
| العنوان: | Impact of fabrication methods on binder distribution and charge transport in composite cathodes of all-solid-state batteries |
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| المؤلفون: | Benjamin Emley, Chaoshan Wu, Lihong Zhao, Qing Ai, Yanliang Liang, Zhaoyang Chen, Liqun Guo, Tanguy Terlier, Jun Lou, Zheng Fan, Yan Yao |
| المصدر: | Materials Futures, Vol 2, Iss 4, p 045102 (2023) |
| بيانات النشر: | IOP Publishing |
| سنة النشر: | 2023 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | solid-state battery, solvent-free dry process, polymer binder, lithium thiophosphate electrolyte, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: | The manufacturing process of all-solid-state batteries necessitates the use of polymer binders. However, these binders, being ionic insulators by nature, can adversely affect charge transport within composite cathodes, thereby impacting the rate performance of the batteries. In this work, we aim to investigate the impact of fabrication methods, specifically the solvent-free dry process versus the slurry-cast wet process, on binder distribution and charge transport in composite cathodes of solid-state batteries. In the dry process, the binder forms a fibrous network, while the wet process results in binder coverage on the surface of cathode active materials. The difference in microstructure leads to a notable 20-fold increase in ionic conductivity in the dry-processed cathode. Consequently, the cells processed via the dry method exhibit higher capacity retention of 89% and 83% at C/3 and C/2 rates, respectively, in comparison to 68% and 58% for the wet-processed cells at the same rate. These findings provide valuable insights into the influence of fabrication methods on binder distribution and charge transport, contributing to a better understanding of the binder’s role in manufacturing of all-solid-state batteries. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2752-5724 |
| Relation: | https://doi.org/10.1088/2752-5724/acefe6; https://doaj.org/toc/2752-5724; https://doaj.org/article/c15825c9aba440b0b96f0820a82e1373 |
| DOI: | 10.1088/2752-5724/acefe6 |
| الاتاحة: | https://doi.org/10.1088/2752-5724/acefe6 https://doaj.org/article/c15825c9aba440b0b96f0820a82e1373 |
| رقم الانضمام: | edsbas.D60A5652 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 27525724 |
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| DOI: | 10.1088/2752-5724/acefe6 |