In situ Raman spectroscopy of sulfur speciation in lithium–sulfur batteries
HL Wu, LA Huff, AA Gewirth - ACS applied materials & interfaces, 2015 - ACS Publications
In situ Raman spectroscopy and cyclic voltammetry were used to investigate the mechanism
of sulfur reduction in lithium–sulfur battery slurry cathodes with 1 M lithium bis
(trifluoromethane sulfonyl) imide (LiTFSI) and tetraethylene glycol dimethyl ether
(TEGDME)/1, 3-dioxolane (DIOX)(1/1, v/v). Raman spectroscopy shows that long-chain
polysulfides (S82–) were formed via S8 ring opening in the first reduction process at∼ 2.4 V
vs Li/Li+ and short-chain polysulfides such as S42–, S4–, S3•–, and S2O42–were observed …
of sulfur reduction in lithium–sulfur battery slurry cathodes with 1 M lithium bis
(trifluoromethane sulfonyl) imide (LiTFSI) and tetraethylene glycol dimethyl ether
(TEGDME)/1, 3-dioxolane (DIOX)(1/1, v/v). Raman spectroscopy shows that long-chain
polysulfides (S82–) were formed via S8 ring opening in the first reduction process at∼ 2.4 V
vs Li/Li+ and short-chain polysulfides such as S42–, S4–, S3•–, and S2O42–were observed …
[引用][C] In Situ Raman Spectroscopy of Sulfur Speciation in Lithium–Sulfur Batteries
W Heng-Liang - 2015
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