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:
Feb. 08, 2005
Filed:
Mar. 29, 1999
Martin Topsoe, Odense, DK;
Asa Wendsjo, Odense, DK;
Steen Yde-andersen, Odense, DK;
Danionics A/S, Odense, DK;
Abstract
The invention relates to a method for the preparation of a polymer electrolyte electrochemical cell using an electrolyte precursor, said precursor comprising one or more solvents, one or more salts and a polymer which dissolves in the solvent at a first temperature (T) and which is capable of forming a gel on subsequent cooling following heating to a second temperature (T). Tbeing lower than T, which method comprises: (a) heating the electrolyte precursor to T; (b) optionally cooling the electrolyte precursor, (c) incorporating the electrolyte precursor into the electrochemical cell; (d) heating the electrochemical cell to T; (e) cooling the polymer electrochemical cell to ambient temperature to bring about gelling of the polymer electrolyte. Preferably the polymer is a homopolymer or copolymer from the group of monomers of vinyl fluoride, vinylidenefluoride, trifluoroethylene, tetrafluoroethylene and hexafluoropropylene.