Free standing acetylene black mesh to capture dissolved polysulfide in lithium sulfur batteries.

Herein, we report a cheap and simple approach to solve the polysulfide dissolution problem in lithium sulfur batteries. It was interestingly revealed that a simple insertion of acetylene black mesh enabled us to obtain the capacity of 1491 mA h g−1 at initial discharge and 1062 mA h g−1 after 50 cycles.