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Title:
LITHIUM BIS(FLUOROSULFONYL)IMIDE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/262175
Kind Code:
A1
Abstract:
A lithium bis(fluorosulfonyl)imide, a preparation method therefor and an application thereof, wherein iminodisulfonic acid is synthesized by using sulfur trioxide and ammonia as raw materials, the iminodisulfonic acid is chlorinated by means of thionyl chloride to obtain bis(chlorosulfonyl)imide, and then fluorination and lithiation are performed in sequence to obtain the lithium bis(fluorosulfonyl)imide. The method has excellent yield and purity; and compared with a traditional process, the method has the advantages of simple raw materials, less generation of three wastes, green environmental protection, fewer side reactions, low cost and the like, and is easy to industrialize.

Inventors:
YUE MIN (CN)
YU YI (CN)
HU XIANGBIN (CN)
Application Number:
PCT/CN2021/129083
Publication Date:
December 22, 2022
Filing Date:
November 05, 2021
Export Citation:
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Assignee:
SHENZHEN YANYI NEW MAT CO LTD (CN)
International Classes:
C01B21/086; H01M10/0568
Foreign References:
CN113511639A2021-10-19
CN103562129A2014-02-05
CN105731399A2016-07-06
CN108002355A2018-05-08
CN110697668A2020-01-17
CN109734061A2019-05-10
US4261963A1981-04-14
GB674810A1952-07-02
Attorney, Agent or Firm:
GEXU INTELLECTUAL PROPERTY LAW FIRM (CN)
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