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New Electrolyte Additive Improves Performance of Lithium Metal Batteries
Adding an electrolyte additive enhanced the charging speed of lithium metal batteries and resulted in novel insights into battery chemistry.
Chemists from the U.S. Department of Energy’s Brookhaven National Laboratory, aiming to enhance electric vehicle batteries, have employed an electrolyte additive to improve the functionality of energy-dense lithium metal batteries. By adding a compound called cesium nitrate to the electrolyte that separates the battery’s anode and cathode, the research team has significantly improved the charging rate of lithium metal batteries while maintaining a long cycle life.
The team’s new work, recently published in Nature Communications, targets the interphase—a protective layer formed on the battery’s anode and cathode. This layer, which prevents degradation of battery electrodes, is the key to creating lithium metal batteries that can be charged and discharged as many times as lithium-ion batteries.
