PROPERTIES OF SULFUR CATHODES DEPENDING ON THE NATURE OF CURRENT-CONDUCTING ADDITIVES

It is shown that the energy capacity of sulfur cathodes significantly depends on the nature of current-conducting additives (acetylene black , graphite, activated carbon). The energy capacity increases with the increasing specific surface area of carbon materials and their electri cal conductivity. These factors have an especially strong effect on th e second discharge stage. It is assumed that the most likely cause for the low utilization of sulfur is the fact that the poorly soluble pro ducts of electrochemical reactions, possibly lithium disulfide, block the cathode surface.