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:
Nov. 18, 2014
Filed:
Jul. 29, 2011
Alf Schulz, Wedemark, DE;
Placido Garcia-juan, Hannover, DE;
Alf Schulz, Wedemark, DE;
Placido Garcia-Juan, Hannover, DE;
Solvay SA, Brussels, BE;
Abstract
LiPOF, an electrolyte salt additive for batteries, is manufactured by the reaction of POF, PFor mixtures thereof, with LiPOforming a reaction mixture comprising LiPOF. When POFis applied, the reaction mixture which contains essentially only LiPOFis preferably extracted from the reaction mixture with a solvent which also is applicable as solvent for lithium ion batteries. If PFis applied, then, depending on the molar ratio of PFand LiPO, the reaction mixture also contains LiF and/or LiPF. To isolate pure LiPOFfrom LiF, the reaction mixture containing essentially only LiPOFand LiF may for example, be extracted with dimethoxyethane, acetone, dimethyl carbonate or propylene carbonate. To isolate pure LiPOFfrom LiPF, the reaction mixture containing essentially only these constituents is preferably extracted with a solvent which also is applicable as solvent for the LiPFin lithium ion batteries to dissolve and remove LiPF.