Breakthrough: Lithium-Sulfur Battery Retains 80% Capacity After 25,000 Cycles
2025-02-21
A Chinese research team has developed a revolutionary lithium-sulfur battery that retains 80% of its charge capacity after an astounding 25,000 charge-discharge cycles—significantly outperforming traditional lithium-ion batteries, which typically degrade after 1,000 cycles. This breakthrough utilizes a novel sulfur-based solid-state electrode composed of sulfur, boron, lithium, phosphorus, and iodine. The addition of iodine accelerates redox reactions, leading to faster charging and discharging. While promising, further research is needed to improve energy density and explore alternative lightweight materials.