US EPA

4434063 

Journal Article 

The cycling performances of lithium-sulfur batteries in TEGDME/DOL containing LiNO3 additive 

Kim, HSun; Jeong, TaeG; Choi, NamS; Kim, YTae 

2013 

Yes 

Ionics
ISSN: 0947-7047
EISSN: 0388-659X 

19 

12 

1795-1802 

10.1007/s11581-013-0943-9 

WOS:000326923900011 

The cycling performance of lithium-sulfur batteries in binary electrolytes based on tetra(ethylene glycol)dimethyl ether (TEGDME) and 1,3-dioxolane(DOL) with lithium nitrate (LiNO3) additive were investigated. The highest ionic conductivity was obtained for 1 M LiN(CF3SO2)(2) (LiTFSI) in TEGDME/DOL = 33:67(volume ratio)-based electrolyte. The cyclic efficiency of lithium-sulfur batteries was dramatically increased with LiNO3 additive as a shuttle inhibitor in electrolytes. The lithium-sulfur cell assembled with 1 M LiTFSI in TEGDME/DOL containing 0.2 M LiNO3 additive for electrolyte, the elemental sulfur for cathode, and the lithium metal for anode demonstrated the initial discharge capacity of about 900 mAh g(-1) and an enhanced cycling performance. 

Lithium-sulfur battery; Tetra(ethylene glycol) dimethyl ether; 1,3-Dioxolane; Lithium nitrate; Cycling properties