| abstract |
(57) [Summary] Lithium-sulfur battery with liquid electrolyte [Solution] A high-performance lithium-sulfur battery cell has the following features. That is, (a) the negative electrode includes a metal or an ion of the metal, (b) the positive electrode includes an electron conductive material, and (c) the liquid catholyte includes a solvent and a metal sulfide or metal polysulfide. A dissolved electrochemically active material comprising sulfur in the form of at least one of the following: Such a battery cell, when discharged at a discharge rate of at least 0.1 mA / cm 2 , has an energy density calculated based on the laminate weight of at least about 400 watt-hours / kg or more. Features. Cells satisfying such criteria are often used as primary batteries. |