Method for preparing bi-(sulfonyl fluoride) imine and (fluorinated alkyl sulfonyl fluorine sulfonyl) imine alkali metal salt
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 武汉市瑞华新能源科技有限公司
- Publication Date
- 2013-06-19
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Abstract
Description
technical field
[0001] The invention belongs to the chemical synthesis of fluorine, and relates to a preparation method of an alkali metal salt of a fluorine-containing imine, in particular to a bis(fluorosulfonyl)imide (H[N(SO 2 f) 2 ]) and (perfluoroalkylsulfonylfluorosulfonyl)imine (H[R f SO 2 NSO 2 F], R f =C m f 2m+1 , m=1-8) alkali metal salt (M[N(SO 2 f) 2 ], M[R f SO 2 NSO 2 F)]; Preparation of M = Li, Na, K, Rb, Cs). Background technique
[0002] Bis(fluorosulfonyl)imide (H[N(SO 2 f) 2 ], hereinafter referred to as H[FSI]) and (perfluoroalkylsulfonylfluorosulfonyl)imine (H[R f SO 2 NSO 2 F)], R f =C m f 2m+1 , m=1-8; hereinafter referred to as H[R f FSI]) alkali metal salts, especially lithium salts, are important fluorine-containing organic ion compounds, which are used in high-performance non-aqueous electrolyte materials for clean energy devices such as secondary lithium batteries, supercapacitors, and aluminum electrolytic capacitors, as well...