Composite Electrolyte Membranes for Solid-state Battery: Processing, Prototyping, a Lab-to-Market Endeavor

Replacing flammable liquid electrolytes with solid ionic conductors attracted increasing attention in the electric vehicle (EV) battery market for improved battery safety. Ceramic ion conductors are mechanically fragile and not ready for applications of small volume and energy-dense batteries in today’s market. Our team developed composite electrolytes that are processed into ultra-thin membranes and demonstrated significantly extended cycle life compared to ceramic electrolytes. Additional coating layers are designed based on the electrolyte composition enabling further enhanced energy output and cycle life. This project aims to accelerate the delivery of the market-ready products – a series of composite electrolyte membranes – to potential users, the EV battery manufacturers. Two industrial partners representing the end-users and stakeholders of the technology proposed will participate in the research, development, scale-up, pilot production, and prototype demonstration of the composite electrolyte materials.


 


 

Cellulose-Encapsulated Composite Electrolyte Design: Toward Chemically and Mechanically Enhanced Solid-Sodium Batteries

XueHai Tan, Vladimir K Michaelis, Madhu Sudan Chaudhary, Lingzi Sang, Geng Xie, Runqi Wu

Peer-Reviewed Journal Article

Navigating Solvent Chemistry and Microstructures: Toward Mechanically Enhanced Ceramic-Rich Composite Electrolytes

Lingzi Sang, Runqi Wu

Peer-Reviewed Journal Article

Pushing the Limit of in-Situ Characterization in All-Solid-State Battery: Full Decomposition Mechanism of Na3SbS4 Electrolyte Under Precise Potential Control

Lingzi Sang, Geng Xie

Conference/Symposium/Workshop Contribution

Sintering of W-substituted Na3SbS4 Electrolytes: Effect of Phase Composition, Voids, and Interface Contact

Arthur Mar, Lingzi Sang, Geng Xie, Xiang You

Article in professional or trade journals