Recently, the team from University of Science and Technology of China (USTC) developed new aqueous zinc-ion batteries (ZIBs). The related achievement was recently published in the international academic journal PNAS.
The official website of the National Synchrotron Radiation Laboratory at USTC announced that Professor Song Li’s team has developed ammonium-intercalated vanadium pentoxide ZIBs cathode materials with fast charging performance.
The test results show that at a current density of 200 C, the specific capacity of ammonium-intercalated vanadium pentoxide (NH4+-V2O5) cathode material remains at 101.0 mA h g-1, and the charging time only takes 18 seconds.
This work provides a basis for understanding the Zn2+ storage mechanism in intercalated V2O5 materials from the perspective of atomic orbitals, also lays the foundation for the application of high-performance ZIBs in fast-charging energy storage devices.
Nowadays, aqueous ZIBs have become one of the most promising sustainable energy storage technologies due to their safety, non-toxicity, and high theoretical capacity.