AI Summary
Researchers have developed a lithium-sulfur battery with an iron sulfide cathode for improved stability and safety. One prototype showed stability over 300 cycles, while another continued to provide power even after being folded or cut. This innovation addresses the shortcomings of traditional lithium-ion batteries and offers promising potential for portable electronics.
Most rechargeable batteries that power portable devices, such as toys, handheld vacuums and e-bikes, use lithium-ion technology. But these batteries can have short lifetimes and may catch fire when damaged. To address stability and safety issues, researchers have designed a lithium-sulfur (Li-S) battery that features an improved iron sulfide cathode. One prototype remains highly stable over 300 charge-discharge cycles, and another provides power even after being folded or cut.