Patent ID: 9590252
Date: 2017-03-07
CPC Classifications: H01M,Y02E

Claim:
1. A cathode for a lithium-sulfur battery cell comprising: a composite electrode material comprising elemental sulfur mixed with carbon coated onto an electrode substrate, with a nucleation agent of gold nanoparticles affixed uniformly across a surface of the composite electrode material, wherein the gold nanoparticles are available to bond with the elemental sulfur and lithium sulfide during use, the gold nanoparticles directing growth, morphology and deposition of lithium sulfide during charge and discharge of the lithium-sulfur battery, the gold nanoparticles having a diameter in a range of greater than twenty nanometers and less than one hundred nanometers, and the gold nanoparticles being less than four weight percent of the positive active material.