Demand and use of electric vehicles (EVs) is rapidly increasing due to environmental pollution problems. However, electric vehicles have a big disadvantage of short mileage. In order to overcome these disadvantages, a large amount of batteries were mounted on the automobile to increase the amount of absolute energy. However, such a solution does not increase the fuel efficiency so much as the weight of the automobile increases. Therefore, a battery using a high energy density active material should be applied to lower the weight of the battery and increase the energy density. Recently, Li-S batteries among high-energy density next generation secondary batteries have a high capacity of 1675 mAh / g, and are being studied because of their advantages of being cheap and environmentally friendly. However, due to polysulfide elution, shuttle phenomenon and low conductivity, there is a problem of capacity reduction and cycle performance deterioration.

Recently, much research has been conducted to solve the problem of inhibiting the dissolution of polysulfide. Among previous works, there have been studies to synthesize polymeric active materials by adding organic sulfur additive to molten sulfur. The synthesized active materials inhibited the elution of the polysulfide and confirmed the improvement of cycle performance.

In this study, the polysulfide elution and shuttle phenomenon inhibited by using the active materials used in the above - mentioned studies and the electrochemical characteristics of the electrodes prepared by using two conductive materials separately were analyzed.