sorce: By Kannapat/ adobe stock file #613366420
Background:
In the quest for more efficient and powerful energy storage solutions, the limitations of current lithium-ion batteries, especially for electric vehicle (EV) applications, have been a significant barrier. Traditional Lithium-Ion batteries face multiple challenges including relatively low energy density, poor stability and safety, and short service life. This has prevented widespread adoption of electric vehicles and has also stunted development in areas such as electric aviation. All-solid-state Li-air batteries (SSLABs) have the potential to revolutionize energy storage due to theirhigh theoretical energy density and their use of abundant materials like oxygen. However, many of the same challenges still exist for ASSLBs. Northeastern researchers are focused on addressing challenges within SSLABs through the development of innovative materials, architecture, interfaces and chemistries.
Description:
A Northeastern team is conducting research with the aim of developinga transformative all-solid-state Li-air battery, integrating multiple cutting-edge advancements. At its core, the battery features a novel porous cathode with a specialized core-shell structure, enhancing oxygen kinetics and electronic conduction. The shift to a solid-state LiPON electrolyte marks a significant departure from conventional liquid electrolytes, offering increased safety and stability, particularly in preventing dendrite growth. Innovations extend to the battery's interfaces, with a self-healing ionogel and nanostructured layers to mitigate common failure modes.Integration of a hydrophobic selective gas separation membrane, ensures cathode stability by filtering moisture from ambient air. The projected energy density of 1000 Wh/kg would represent a quantum leap over existing technologies, positioning this all-solid-state Li-air battery as a game-changer for all forms of electronic transportation including electric aviation.
Benefits:
Successful potential outcomes of this work:
- Exceptional energy density of 1000 Wh/kg, significantly surpassing current Li-ion batteries.
- Improved battery life and performance, achieving up to 1000 cycles at 80% depth-of-discharge
- Innovative solid-state architecture and engineered interfaces
- Enhanced safety and stability, enabled by the solid LiPON electrolyte and innovative cathode design.
Applications:
- Electric aviation, enabling longer flight ranges and reducing environmental impact.
- Various electric transportation forms, including electric cars and drones.
- Portable power sources for high-energy-demand applications.
- Research and development for advanced energy storage solutions.
