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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.:

US 12479724 B1

PDFFull Text
Date of Patent:
Nov. 25, 2025

Filed:

Oct. 13, 2020

Bis(fluorosulfonyl)imide salts and preparation method thereof

Applicant:

Syensqo SA, Brussels, BE;

Inventors:

Olivier Buisine, Saint Genis-Laval, FR;

Yeon-Joon Kim, Seoul, KR;

Byeong-Ki Kim, Seoul, KR;

Assignee:

SYENSQO SA, Brussels, BE;

Attorney:

Osha Bergman Watanabe & Burton LLP

Primary Examiner:

Sheng H Davis

Int. Cl.
CPC ...
C01B 21/086 (2006.01); B01D 9/00 (2006.01); C01B 21/093 (2006.01); C07C 303/42 (2006.01); C07C 311/48 (2006.01); H01M 10/0568 (2010.01);
U.S. Cl.
CPC ...
C01B 21/093 (2013.01); B01D 9/00 (2013.01); C01B 21/086 (2013.01); C07C 303/42 (2013.01); C07C 311/48 (2013.01); H01M 10/0568 (2013.01); C01P 2006/40 (2013.01); C01P 2006/80 (2013.01); C07B 2200/13 (2013.01); H01M 2300/0025 (2013.01);
Abstract

The present invention relates to bis(fluorosulfonyl)imide salts, and their preparation methods. More specifically, the invention provides a new salt of bis(fluorosulfonyl)imide containing from 0.01 ppm to 10000 ppm of a halogenated alcohol. The invention further relates to a method for producing said salt of bis(fluorosulfonyl)imide, said method comprising a step of crystallizing a raw salt of bis(fluorosulfonyl)imide within a crystallization solvent comprising at least a halogenated alcohol. The use of said salt of bis(fluorosulfonyl)imide is also disclosed.

Find Patent Forward Citations

Buisine, Olivier. (2025). Bis(fluorosulfonyl)imide salts and preparation method thereof (U.S. Patent No. 12479724). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12479724

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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