Background
Zn-air batteries (ZABs) are an emerging technology recognized for their environmentally friendly properties, cost-effectiveness, and high energy density. ZABs are reinventing next generation metal air batteries and are considered potential alternatives to lithium-ion batteries, providing a greener alternative. These batteries operate by utilizing zinc as the anode and oxygen from ambient air as the cathode reactant, offering significant advantages over traditional battery systems. Despite their potential, widespread adoption of ZABs has been hindered by several technical challenges, particularly the efficiency, cost, and durability of the air cathode.
Invention Description
Researchers at Arizona State University and the University of Oklahoma have developed an enhanced Zn-air batteries design featuring a novel air-electrode catalyst that significantly improves the ORR and OER efficiency and its durability, thereby extending the battery's performance and lifespan. This catalyst is also bifunctional, catalyzing both ORR and OER efficiently. It is based on Nb, a non-PGM transition metal with low cost. Additionally, due to its atomic dispersion and extreme atom-utilization efficiency, only a tiny amount of the metal is needed. The proposed innovation is promising to pave the way for Zn-air batteries to be used in a broad range of applications, providing a sustainable and efficient energy solution.
Potential Applications:
- Sustainability & green technology
- Energy conversion & storage systems
- Renewable energy integration systems
- Electric vehicles and portable electronics
Benefits and Advantages:
- Battery Optimization- enhanced battery efficiency and longevity
- Smart Energy- provides a sustainable and efficient energy solution
- Dual function- catalyzes both ORR and OER effectively & efficiently
