Invention Grant
- Patent Title: Process for the manufacture of 1, 1′-difluorosubstituted dialkyl carbonates, isomers thereof and electrolyte compositions containing them
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Application No.: US14362624Application Date: 2012-11-23
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Publication No.: US09969673B2Publication Date: 2018-05-15
- Inventor: Martin Bomkamp
- Applicant: SOLVAY SA
- Applicant Address: BE Brussels
- Assignee: SOLVAY S.A.
- Current Assignee: SOLVAY S.A.
- Current Assignee Address: BE Brussels
- Priority: EP11192446 20111207
- International Application: PCT/EP2012/073485 WO 20121123
- International Announcement: WO2013/083418 WO 20130613
- Main IPC: C07C68/02
- IPC: C07C68/02 ; C07C69/96 ; H01M10/0525 ; H01M10/0567 ; H01M10/0569 ; H01M10/052
Abstract:
Fluoroalkyl alkyl carbonates which are suitable as additives or solvents in lithium ion batteries are prepared from fluoroalkyl fluoroformiates and an aldehyde, preferably formaldehyde and acetaldehyde. 1,1′-difluoromethyl carbonate and 1,1′-di-fluorodiethylcarbonate are the preferred compounds prepared by the process of the present invention.
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