The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2024
Filed:
Sep. 04, 2019
Daegu Catholic University Industry Academic Cooperation Foundation, Gyeongsan-si, KR;
Sang Ryul Lee, Chungju-si, KR;
Kyoung Chol Kim, Chungju-si, KR;
Ja Young Park, Chungju-si, KR;
Ji Hyeong Kim, Chungju-si, KR;
Jeong In Kim, Chungju-si, KR;
Seok Ju Lee, Daegu, KR;
Jongyun Jang, Uiseong-gun, KR;
Seongjeong Lee, Daegu, KR;
Mingi Chu, Daegu, KR;
Dong Wook Kang, Seoul, KR;
DAEGU CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION, Gyeongsan-si, KR;
Abstract
A method for producing a bis(fluorosulfonyl)imide lithium salt is disclosed. The method includes the steps of: (a) reacting bis(chlorosulfonyl)imide with NHF(HF)n (n=0-10) to prepare ammonium bis(fluorosulfonyl)imide; and (b) reacting the ammonium bis(fluorosulfonyl)imide with a lithium base, wherein in at least one of steps (a) and (b), after the reaction, a process of adding an alkoxy trialkyl silane to the reaction solution to remove a fluorine anion is performed.