Gu S1,2,3, Wen Z1, Qian R2, Jin J1, Wang Q1,3, Wu M1, Zhuo S2.
ACS Appl Mater Interfaces. 2016 Dec 21;8(50):34379-34386. doi: 10.1021/acsami.6b11619. Epub 2016 Dec 8.Development of lithium sulfur (Li-S) batteries with high Coulombic efficiency and long cycle stability remains challenging due to the dissolution and shuttle of polysulfides in electrolyte. Here, a novel additive, carbon disulfide (CS2), to the organic electrolyte is reported to improve the cycling performance of Li-S batteries. The cells with the CS2-additive electrolyte exhibit high Coulombic efficiency and long cycle stability, showing average Coulombic efficiency >99% and a capacity retention of 88% over the entire 300 cycles. Read More