Synthesis and evaluation of a novel pyrrolidinium-based zwitterionic additive with an ether side chain for ionic liquid electrolytes in high-voltage lithium-ion batteries
作者:Shunsuke Horiuchi、Haijin Zhu、Maria Forsyth、Yuko Takeoka、Masahiro Rikukawa、Masahiro Yoshizawa-Fujita
DOI:10.1016/j.electacta.2017.04.165
日期:2017.7
electrochemical properties of an IL and the charge/discharge properties of Li/LiCoO2, Li/LiNi1/3Mn1/3Co1/3O2 (NMC), and graphite/Li cells with IL/zwitterion electrolytes was investigated. The melting temperature of the IL-based electrolyte composed of N-methyl-N-methoxymethylpyrrolidinium bis(fluorosulfonyl)amide ([Pyr1,1O1][FSA]) and lithium bis(fluorosulfonyl)amide (LiFSA) with 3-(1-(2-(2-methoxye
研究了含两性离子的离子液体(ILs)作为锂离子电池的电解质。带有较长醚侧链的吡咯烷鎓两性离子对IL的热和电化学性质以及Li / LiCoO 2,Li / LiNi 1/3 Mn 1/3 Co 1/3 O 2( NMC),以及带有IL /两性离子电解质的石墨/锂电池。由N-甲基-N-甲氧基甲基吡咯烷鎓双(氟磺酰基)酰胺([Pyr 1,1O1] [FSA])和双(氟磺酰基)氨基锂(LiFSA),其中3-(1-(2-(2-(2-甲氧基乙氧基)乙基)吡咯烷-1-基-1-基)丙烷-1-磺酸盐(OE2pyps)两性离子添加剂为约-18℃。[Pyr 1,1O1 ] [FSA] / LiFSA / OE2pyps的电化学窗口相对于Li / Li +超过5V 。含[Pyr 1,1O1]的Li |电解质| LiCoO 2电池] [FSA] / LiFSA / OE2pyps电解质系统即使在50次循环后,仍在3