公开(公告)号：US20240246818A1

公开(公告)日：2024-07-25

申请号：US18564470

申请日：2022-05-10

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Etienne Schmitt

IPC: C01B21/093

CPC classification number: C01B21/0935

Abstract: The present disclosure relates to a new method for producing alkali salt of bis(fluorosulfonyl)imide of high purity, as industrial scale, and with a reasonable cost when compared to the other available methods. Said method comprises the steps of reacting a bis(chlorosulfonyl)imide or a salt thereof with an onium chloride to produce an onium salt of bis(chlorosulfonyl)imide; reacting an onium salt of bis(chlorosulfonyl)imide with anhydrous hydrogen fluoride in at least one organic solvent to produce onium salt of bis(fluorosulfonyl)imide; and reacting the onium salt of bis(fluorosulfonyl)imide with an alkali salt to obtain alkali salt of bis(fluorosulfonyl)imide.

公开(公告)号：US20250042741A1

公开(公告)日：2025-02-06

申请号：US18722467

申请日：2022-12-19

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Olivier Buisine ,  Woo-Jeong Jang ,  Young-Su Kim ,  Etienne Schmitt

IPC: C01B21/086 ,  C07C29/70 ,  H01M10/0568

Abstract: The invention relates to a process for manufacturing bis(fluoro sulfonyl)imide salt(s) (MFSI) comprising at least a step of reacting an ammonium salt of bis(fluorosulfonyl)imide (NH4FSI) with a fluorine-containing alkoxide. The invention also relates to a process for preparing the fluorine-containing alkoxide.

公开(公告)号：US20250006994A1

公开(公告)日：2025-01-02

申请号：US18695313

申请日：2023-11-09

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Etienne Schmitt ,  Frédéric Le Guyader ,  Nicolas Roques

IPC: H01M10/0568 ,  C01B21/086

Abstract: The present invention relates to a composition comprising an alkali metal salt of bis(fluoro sulfonyl)imide and to the use of such composition in an electrolyte for batteries.

公开(公告)号：US20240391774A1

公开(公告)日：2024-11-28

申请号：US18694120

申请日：2022-09-21

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Etienne Schmitt

IPC: C01B21/093

Abstract: The present invention relates to a process for manufacturing a bis(chlorosulfonyl)imide (HCSI) of ultra-pure (UP) grade with a purity of at least 99.0 mol. % with respect to the total number of moles of HCSI. In addition, the present invention relates to an HCSI of UP grade obtainable from the process, and to the use of the HCSI of UP grade for preparing a lithium bis(fluorosulfonyl)imide (LiFSI). The present invention also relates to a process for manufacturing a LiFSI comprising the preparation of an HCSI of UP grade according to the present process. The present invention relates to a composition comprising a LiFSI with a purity of at least 99.99 mol. % with respect to the total number of moles of LiFSI in the composition, and to the use of a composition comprising a LiFSI obtainable from the present process in a lithium-ion secondary battery.

公开(公告)号：US20240343575A1

公开(公告)日：2024-10-17

申请号：US18691904

申请日：2022-09-13

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Etienne Schmitt

IPC: C01B21/086 ,  H01M10/0568

CPC classification number: C01B21/086 ,  H01M10/0568 ,  C01P2006/40 ,  H01M2300/0025

Abstract: The present disclosure relates to a method for preparing salts of bis(fluorosulfonyl)imide and to a method for preparing alkali metal salts of bis(fluorosulfonyl)imide from said bis(fluorosulfonyl)imide salts. More specifically, the invention provides a new method for producing these salts of bis(fluorosulfonyl)imide which is implementable at industrial scale and providing high-purity bis(fluorosulfonyl)imide salts.

公开(公告)号：US20240405284A1

公开(公告)日：2024-12-05

申请号：US18695781

申请日：2023-11-09

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Etienne Schmitt ,  Nicolas Roques ,  Frédéric Batt ,  Elie Derrien

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0569

Abstract: The present invention relates to a composition comprising an alkali metal salt of bis(fluoro sulfonyl)imide and to the use of such composition in an electrolyte for batteries.

公开(公告)号：US20240405283A1

公开(公告)日：2024-12-05

申请号：US18695290

申请日：2023-11-09

Applicant: SPECIALTY OPERATIONS FRANCE

Inventor： Etienne Schmitt ,  Nicolas Roques ,  Frédéric Batt ,  Elie Derrien

IPC: H01M10/0568 ,  C01B21/093 ,  H01M10/052 ,  H01M10/0569

Abstract: The present invention relates to a composition comprising an alkali metal salt of bis(fluorosulfonyl)imide and to the use of such composition in an electrolyte for batteries.