Folded or cut, this lithium-sulfur battery keeps powering devices
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 reporting in 'ACS Energy Letters' have designed a lithium-sulfur (Li-S) battery that features an improved iron sulfide cathode. One prototy