Progress in lithium-sulfur batteries: the effective role of a polysulfide-added electrolyte as buffer to prevent cathode dissolution.
Paving the road for sulfur: A unique electrolyte composition designed for the development of stable lithium-sulfur batteries with high energy. A battery with a high and stable capacity is prepared by using an electrolyte containing a dissolved catholyte-type compound, that is, Li2 S8 polysulfide. The cell is characterized by a capacity approaching the theoretical value at a working voltage of 2.1 V, which is remarkable compared to conventional lithium ion batteries.
Department of WCU Energy Engineering, Hanyang University, 133-791, Seoul (Republic of Korea).
Dong-Ju
DJ
Lee
Marco
M
Agostini
Ju-Won
JW
Park
Yang-Kook
YK
Sun
Jusef
J
Hassoun
Bruno
B
Scrosati
D011211:Electric Power Supplies; D004566:Electrodes; D004573:Electrolytes / Q000737:chemistry; D005026:Ethylene Glycols / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D012995:Solubility; D013440:Sulfides / Q000737:chemistry*; D013455:Sulfur / Q000737:chemistry*
D004573:Electrolytes; D005026:Ethylene Glycols; D013440:Sulfides; D013455:Sulfur; C441631:tetraglyme; C032915:polysulfide; D008094:Lithium
batteries; capacity; electrolytes; lithium; sulfur