Invention Reference Number
Researchers at Oak Ridge National Laboratory have developed a solid-state lithium battery technology featuring a unique polymer electrolyte and engineered electrode interface that enhances performance at moderate operating conditions. The approach addresses dendrite formation and stability issues that limit existing polymer-based solid-state batteries. By modifying interfacial properties, this design improves battery lifespan and reliability without compromising ionic transport. This innovation could accelerate the development of safer, longer-lasting solid-state energy storage systems.
Description
This technology introduces a solid-state battery design that incorporates a single-ion-conducting polymer electrolyte with a carefully engineered electrode interface. Unlike traditional polymer electrolytes that allow both ions to move freely, this system immobilizes one ionic species to promote stable lithium transport. The interfacial region between the electrolyte and lithium metal anode is tuned through specific surface modifications that enhance compatibility and reduce degradation during cycling. These modifications mitigate dendrite formation and extend operational lifetime under a range of current densities and temperatures. The result is a more stable solid-state battery architecture that balances ionic conductivity and interfacial integrity, providing improved cycling performance and safety compared to conventional systems. This approach may be integrated into next-generation solid-state batteries for electric vehicles, grid energy storage, and portable electronics.
Benefits
- Improved battery lifespan and cycling stability
- Reduced risk of lithium dendrite formation
- Enhanced interfacial compatibility and safety
- Supports moderate-temperature operation
Applications and Industries
- Electric vehicles and transportation
- Grid-scale and renewable energy storage
- Consumer electronics and portable devices
- Aerospace and defense power systems
Contact
To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.
