| Autor: |
Byeon, Young-Woon, Yang, Sizhuo, Yang, Guang, Kim, Dong-Min, Avvaru, Venkata Sai, Ogunfunmi, Tofunmi, Scott, Mary, Helms, Brett A., Urban, Jeffrey, Kim, Haegyeom |
| Zdroj: |
Journal of Materials Chemistry A; 4/14/2024, Vol. 12 Issue 14, p8543-8560, 15p |
| Abstrakt: |
A composite structure was developed for use in all-solid-state batteries that consists of a conductive 3D reduced graphene oxide framework embedded beneath cathode active material particles. This unique structure offers significant advantages when combined with a sulfide solid electrolyte as the heterogeneous distribution of the conductive carbon in the composite cathode ensures good contact between the carbon and cathode particles for facile electron transfer while a direct contact between the carbon and sulfide solid electrolyte is avoided or minimized. This approach assists in preventing or reducing unwanted irreversible faradaic reactions. As a result, the newly developed composite of cathode particles decorated on a 3D reduced graphene oxide framework delivers higher specific capacity with improved cycling stability compared with a typical composite cathode consisting of a homogenous mixture of the cathode active material, carbon nanofibers, and sulfide solid electrolyte. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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