Researchers at the US Department of Energy’s (DOE) Brookhaven National Laboratory have designed a new, sulfur-based organic cathode material for lithium batteries. The material is more energy-dense, cost-effective, and environmentally friendly than traditional cathode materials in lithium batteries. The research is published in Advanced Energy Materials . The researchers chose an innovative organodisulfide compound for the cathode material—2,3,4,6,8,9,10,12‐Octathia biscyclopenta[b,c]‐5,11‐anthraquinone‐1,7‐dithione (TPQD). TPQD can deliver an initial capacity of 251.7 mAh g −1 at a rate of C/10, which corresponds to the transfer of 4.7 electrons per formula. Highly reversible capacities and stable cyclic performances can be achieved at rates from C/10 to 5 C. TPQD can retain a capacity of 120 mAh g −1 after 200 cycles at the 5 C rate—quite impressive for organodisulfide compounds. X‐ray absorption spectroscopy measurements and density functional theory calculation results suggest that such a high capacity is contributed by both O redox of the […]