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:
Jul. 14, 1998
Filed:
Apr. 11, 1997
Krishna Menon, Henderson, NV (US);
Valence Technology, Inc., Henderson, NV (US);
Abstract
Superior bonding of an electrode layer to a separator layer can be achieved by applying a coat of pre-lamination solvent on the surface of the electrode and/or separator prior to attachment in fabricating electrochemical cells. The amount of solvent added is effective to dissolve at least a portion of the polymer material on the surface coated so that upon attachment the electrode and separator layers develop excellent adhesion. Preferred pre-lamination solvent has a boiling point higher than about 50.degree. C. at 760 mm of Hg. Preferred pre-lamination solvents include, for example, N,N-dimethyl formamide, N,N-dimethylacetamide, 1,3-dioxolane dioxane, methyl ethyl ketone, and mixtures thereof. Acetone can be included in the pre-lamination solvent.