高等学校化学学报Issue(4)：804-811,8.DOI:10.7503/cjcu20131151
双（多氟烷氧基磺酰）亚胺碱金属盐的合成、表征及锂盐电解液的性质
Preparation, Characterization and Physicochemical Properties of Alkali Bis(polyfluoroalkyloxysulfonyl) imides and Electrochemical Properties of the Lithium Salts
摘要
Abstract
Two series of alkali salts of bis(polyfluoroalkyloxysulfonyl)imides, alkali bis(2,2,2-trifluoroetho-xysulfonyl)imides{M[N(SO2OCH2CF3)2], MTFESI} and alkali bis[(1,1,1,3,3,3-hexafluoro-2-propoxy) sulfonyl] imides( M{N [ SO2 OCH ( CF3 ) 2 ] 2}, MHFPSI ) ( M=Li, Na, K, Rb, Cs ) , were prepared and characterized by NMR, IR and elemental analysis. Thermal properties of the neat salts were investigated by differential scanning calorimetry ( DSC ) and thermogravimetric analysis ( TGA ) . The fundamental physico-chemical properties of nonaqueous electrolytes of lithium bis(polyfluoroalkyloxysulfonyl)imides are studied. The results indicate that the alkali bis ( polyfluoroalkyloxysulfonyl ) imides show high thermal stability and low melting point. The electrolytes of 1.0 mol/L lithium salt in a mixture of ethylene carbonate( EC)/ethyl methyl carbonate(EMC) (3: 7, volume ratio) show medium conductivities, high oxidation potentials and do not corrode Al in the high potential region of 3-5 V( vs. Li+/Li) .关键词
双(三氟乙氧基磺酰)亚胺阴离子/双(六氟异丙氧基磺酰)亚胺阴离子/碱金属盐/非水电解液/锂离子电池Key words
Bis(2,2,2-trifluoroethoxysulfonyl)imide/Bis[(1,1,1,3,3,3-hexafluoro-2-propoxy)sulfonyl]-imide/Alkali salt/Nonaqueous electrolyte/Lithium-ion battery分类
化学化工引用本文复制引用
张恒,刘成勇,巩守哲,冯文芳,徐飞,聂进,周志彬..双（多氟烷氧基磺酰）亚胺碱金属盐的合成、表征及锂盐电解液的性质[J].高等学校化学学报,2014,(4):804-811,8.基金项目
国家自然科学基金(批准号:51172083)资助.@@@@Supported by the National Natural Science Foundation of China(No.51172083) （批准号:51172083）
