AI Article Synopsis
- Enhancing transport and mechanical properties in cathode composites is essential for solid-state battery performance.
- The FAST electrode features vertically aligned carbon nanotubes in a polymer electrolyte, improving ionic and electronic conductivity while reinforcing the electrode.
- This innovative design leads to excellent electrochemical performance, achieving a capacity of 148.2 mAh/g at 0.2 C over 100 cycles, indicating progress in solid-state lithium metal battery technology.
Article 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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698086 | PMC |
| http://dx.doi.org/10.1126/sciadv.adr4292 | DOI Listing |
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