All Solid-State Lithium-Sulfur Battery Using Mesosized Electrode Structure and Thio-LISICON

摘要: Introduction Sulfur as lithium battery electrodes has high theoretical capacity of 1672 mAh·g with the electrochemical reaction in following formula: S + 2Li +2e ↔ Li2S. However, low electronic conductivity sulfur ca. 10 S·cm at room temperature and a loss active material liquid electrolytes cause utilization electrode then poor rechargeability for Li/S cells. All solid-state batteries using sulfide solid electrolyte (SE) are great advantage than electrolytes, because – contact causes no dissolution problem same constituent components make SE/electrode interface easier. between SE is key to reduce interfacial resistance obtain current drain from lithium-sulfur all cell. Previously, we found that mixture acetylene black three-dimensional framework structure significantly improve cell characteristics [1]. Moreover, new composite meso-porous carbon showed reversible 1000 mAh·g. In present study, tried understand mechanism processes.