Lithium sulfur (Li/S) batteries have a high theoretical energy density of 2500 Wh/kg, which is five times higher than that for state of the art lithium-ion batteries. The positive electrode of a Li/S cell consists of sulfur, which is inexpensive and an abundant raw material, distributed in a carbon matrix. For these reasons Li/S batteries are rivalling lithium-ion batteries as choice energy storage system for commercial products. Despite its benefits, the working mechanism of Li/S batteries are still not fully understood. Specifically the precipitation mechanism of Li2S and S8 in or outside of the carbon pores during discharge and charge, respectively. Due to the nature of neutrons and high flux of the D11 instrument, operando SANS with a custom designed cell, is currently the only method that can shed more light on this mechanism.