A new prototype of lithium-sulfur (Li-S) battery has been introduced by The University of Electronic Science and Technology of China (UEST), which can function even when bent or cut in half.
While lithium-ion batteries are widely used in electric vehicles, mobile phones, and more, they suffer from short lifespans, susceptibility to damage, and low safety levels.
This battery still works even after being cut in half.
To address these issues, UEST has focused on enhancing the stability and lifespan of the battery at high temperatures by utilizing a carbonate-based electrolyte. A layer has been inserted between the electrolyte and the cathode to prevent the dissolution of sulfur, which reduces battery capacity.
Polyacrylic acid (PAA) has been identified as the ideal material for this additional layer. By using a PAA-coated iron sulfide cathode, the battery retains 72% of its original capacity even after 300 charge-discharge cycles.
UEST’s first product is a pouch battery, which can preserve electrical pathways despite physical damage. This is remarkable as it continues to operate even after being cut in half.
This breakthrough by UEST opens up a “door” for the application of Li-S batteries, as well as lithium-molybdenum and lithium-vanadium batteries, where long-term stability and high energy density are essential criteria.
If this type of battery proves successful, energy storage will be significantly enhanced, marking a revolutionary change in the battery industry in the future.
