A hydrophilic separator for high performance lithium sulfur batteries

The cells using the hydrophilic separator show significantly enhanced cycle performance. At a rate of 0.2 C, they demonstrate an initial capacity of 1271 mA h g −1 , and after 30 cycles, the capacity can still remain at 1020.3 mA h g −1 , while for the cell using a conventional hydrophobic separator, the capacity is 1238.4 and 532.9 mA h g −1 , respectively.