According to foreign media reports, Professor Linda Nazar of the University of Waterloo in Canada announced that his research team will achieve four-electron conversion for the first time. The technology will realize lithium-oxygen (Li-O). 2) doubled the electronic storage capacity.
The Nazar team converted the organic electrolyte into an inorganic molten salt of lithium nitrate/potassium nitrate to improve its chemical stability and conductivity. In addition, the team took advantage of The dual-function metal oxide catalyst replaces the porous carbon cathode, which increases the battery capacity while reducing the overpotential.
Compared to Li 2O2At 150 degrees Celsius, the battery will generate a more stable Li during use. 2O, its thermodynamic performance is even better. The battery cell is made of a variety of materials, designed to improve its thermodynamic performance and kinetics. The battery performance of the researcher developed by the researchers is better, from theory Above, its energy storage performance has increased by 50%.
In the field of battery research, lithium-oxygen batteries are attractive, mainly due to their theoretical energy density. Energy density is the energy storage capacity of a material. When an electrochemical reaction occurs, the energy is stored in the battery cell. .
Earlier, the technical challenges of lithium-oxygen batteries were concentrated on the cathode of the battery, organic electrolytes, superoxide and lithium peroxide. However, this study has solved all the intrinsic limitations and proved the battery. The possibility of internal four-electron transport, the reversibility of the reaction, and its theoretical coulombic efficiency is close to 100%.
