About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Energy Materials for Sustainable Development
|
| Presentation Title |
Rapid and scalable microwave-assisted synthesis of garnet-type solid electrolytes for all-solid-state batteries |
| Author(s) |
Eric Yoshida, Kai He |
| On-Site Speaker (Planned) |
Eric Yoshida |
| Abstract Scope |
All-solid-state batteries (ASSBs) are an emerging technology to meet ever-increasing demands for high-energy-density storage. Garnet-type Li7La3Zr2O12 (LLZO) is a promising solid electrolyte due to its chemical stability and high ionic conductivity. However, the synthesis of such ceramic solid electrolytes remains energy- and time-intensive. Here, we report a microwave-assisted synthesis method that can significantly reduce the calcination time of various LLZO compositions by over 98%. By tuning the microwave absorption properties of precursor materials, the reaction kinetics can be further optimized to enhance both time and cost efficiency. Comparative analysis of microstructure and electrochemical impedance between conventionally and microwave-synthesized LLZO reveals the role of grain boundaries as a dominant source of ionic resistance, which can be improved by high-entropy doping and interfacial engineering. This work advances scalable approaches to ceramic ionic conductors as solid electrolytes for next-generation ASSBs. |