Solvay Sa

Solvay Flour Gmbh

Solvay Fluor Gmbh

Martin Bomkamp

Dirk Seffer

Gerd-Volker Röschenthaler

Ji-Hun Lee

Nataliya Kalinovich

Sergey N Tverdomed

Jens Olschimke

Ji-Ae Choi

Mykhailo Shevchuk

Hyung Kwon Hwang

The present invention concerns methods for the manufacture of ethylene carbonate substituted with a fluorinated alkoxy group, certain ethylene carbonates substituted with a fluorinated alkoxy group as well as their use as solvent or solvent additive for lithium ion batteries and supercapacitors.

Method for the manufacture of fluorinated cyclic carbonates and their use for lithium ion batteries

Fluorinated carbonates comprising two oxygen bearing functional groups, methods for the preparation thereof, and their use as solvent or solvent additive for lithium ion batteries and supercapacitors are disclosed.

Fluorinated carbonates comprising two oxygen bearing functional groups

Fluorinated carbonyl compounds comprising a triple bond were prepared and their use as solvent additives or solvents in lithium ion batteries, lithium air batteries, lithium sulphur batteries and supercapacitors is described. Preferred compounds contain at least one nitrile or at least one alkynyl group.

Fluorinated carbonyl compounds comprising a triple bond, methods for their manufacture and uses thereof

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&#x2032;-di-fluorodiethylcarbonate are the preferred compounds prepared by the process of the present invention.

Process for the manufacture of 1, 1'-difluorosubstituted dialkyl carbonates, isomers thereof and electrolyte compositions containing them

Fluoroalkyl alkyl carbonates and fluorosubstituted carbamates which are suitable as additives or solvents in lithium ion batteries are prepared from fluoroalkyl fluoroformates and the respective alcohol or amine. Methanol is the preferred alcohol, dimethylamine and diethylamine are preferred amines. Fluoromethyl methyl carbonate is the preferred compound to be produced. Fluoroalkyl fluoroformates can be prepared from aldehydes and carbonyl fluoride.

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Hannover, Germany

Martin Bomkamp