Premium
Role and Potential of Metal Sulfide Catalysts in Lithium‐Sulfur Battery Applications
Author(s) -
Kim SeongJun,
Kim Kookhan,
Park Jungjin,
Sung YungEun
Publication year - 2019
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201900184
Subject(s) - polysulfide , sulfide , battery (electricity) , catalysis , chemistry , sulfur , electrolyte , lithium–sulfur battery , electrocatalyst , lithium (medication) , cathode , inorganic chemistry , redox , materials science , electrochemistry , electrode , organic chemistry , medicine , power (physics) , physics , quantum mechanics , endocrinology
Sulfur has been explored as a cathode active material for post rechargeable batteries because of their various attractive features such as their high theoretical specific capacity which is more than six times that of typical Li‐ion battery (LIB) cathode materials (LiCoO 2 ). Furthermore, as a by‐product of the oil refining process, it is abundant and inexpensive. Despite this, the low electrical conductivity of sulfur and the polysulfide shuttle effect in ether‐based electrolytes has become a major obstacle to the industrialization of lithium‐sulfur (Li−S) batteries. Among them, the polysulfide shuttle effect is the critical limitation to be solved and thus many researchers have been engaged in its solution. This work summarizes a variety of metal sulfide catalysts that have recently attracted attention as additives. In addition, a brief description of the metal sulfides interprets their ability to anchor polysulfides via surface polarity and to act as an electrocatalyst during polysulfide redox reactions. We describe the electrocatalytic activity and anchoring effect of metal sulfides in Li−S batteries and their future possibilities.