| 초록 |
The development of Lithium rechargeable battery has been widely studied due to the increasing demand of batteries with high energy and power densities. The Li-ion battery has insufficient energy density of around 250 Wh kg-1. A battery based on the Li/S would yield the highest theoretical capacity of about 1675 mA h g-1 with a theoretical specific energy of 2600Whkg-1. However, it has not been commercialized due to several problems, such as the poor electrical conductivity of sulfur and short cycle life. In this study, we designed and investigated lithium/sulfur battery cell for minimizing the resistance between electrode, electrolyte, and cell. 20 series-connected cells showed high energy density by minimizing the cell resistance and reducing weight of current collectors. |
