Researchers at the National Institute of Chemistry have developed a new electrolyte that significantly improves the energy capacity of magnesium batteries, marking a major step toward a more sustainable alternative to lithium-ion technology.
Magnesium batteries are considered promising due to their use of more abundant materials and lower environmental impact, but their development has been limited by technical challenges—particularly the formation of passive layers on electrodes and the lack of suitable electrolytes.
The new solution, developed by the institute’s Modern Battery Systems lab, introduces a fluorinated additive that enhances stability, enables higher voltage, and improves overall battery performance, including longer lifespan and better charging efficiency.
The team also applied an advanced method known as operando impedance spectroscopy, allowing researchers to monitor battery performance in real time and identify energy losses during operation. Scientists say this innovation could accelerate the development of safer, more efficient and environmentally friendly battery technologies for the future.
