Enhancing cathode composites with conductive alignment synergy for solid-state batteries
| Author(s) | Cao, Zhang | |
| Author(s) | Yao, Xinxin | |
| Author(s) | Park, Soyeon | |
| Author(s) | Deng, Kaiyue | |
| Author(s) | Zhang, Chunyan | |
| Author(s) | Chen, Lei | |
| Author(s) | Fu, Kelvin | |
| Date Accessioned | 2025-01-10T19:58:27Z | |
| Date Available | 2025-01-10T19:58:27Z | |
| Publication Date | 2025-01-03 | |
| Description | This article was originally published in Science Advances. The version of record is available at: https://doi.org/10.1126/sciadv.adr4292. Copyright © 2025 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). | |
| Abstract | Enhancing transport and chemomechanical properties in cathode composites is crucial for the performance of solid-state batteries. Our study introduces the filler-aligned structured thick (FAST) electrode, which notably improves mechanical strength and ionic/electronic conductivity in solid composite cathodes. The FAST electrode incorporates vertically aligned nanoconducting carbon nanotubes within an ion-conducting polymer electrolyte, creating a low-tortuosity electron/ion transport path while strengthening the electrode’s structure. This design not only mitigates recrystallization of the polymer electrolyte but also establishes a densified local electric field distribution and accelerates the migration of lithium ions. The FAST electrode showcases outstanding electrochemical performance with lithium iron phosphate as the active material, achieving a high capacity of 148.2 milliampere hours per gram at 0.2 C over 100 cycles with substantial material loading (49.3 milligrams per square centimeter). This innovative electrode design marks a remarkable stride in addressing the challenges of solid-state lithium metal batteries. | |
| Sponsor | This work was funded by the University of Delaware start-up. K.F. acknowledges financial support by the US Department of Energy (DoE) under grant DE-FE0032147. | |
| Citation | Cao, Zhang, Xinxin Yao, Soyeon Park, Kaiyue Deng, Chunyan Zhang, Lei Chen, and Kelvin Fu. “Enhancing Cathode Composites with Conductive Alignment Synergy for Solid-State Batteries.” Science Advances 11, no. 1 (January 3, 2025): eadr4292. https://doi.org/10.1126/sciadv.adr4292. | |
| ISSN | 2375-2548 | |
| URL | https://udspace.udel.edu/handle/19716/35712 | |
| Language | en_US | |
| Publisher | Science Advances | |
| dc.rights | Attribution-NonCommercial 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ | |
| Title | Enhancing cathode composites with conductive alignment synergy for solid-state batteries | |
| Type | Article |
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