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:
Oct. 25, 2016
Filed:
Jun. 24, 2013
Kureha Corporation, Tokyo, JP;
Yusaku Inaba, Tokyo, JP;
Tamito Igarashi, Tokyo, JP;
Yuki Sakai, Tokyo, JP;
Aya Takeuchi, Tokyo, JP;
KUREHA CORPORATION, Tokyo, JP;
Abstract
An object of the present invention is to provide a method for producing a resin film for a non-aqueous electrolyte secondary battery that does not inhibit the movement of ions such as lithium ions and that is arranged between a separator and a positive or negative electrode; and a resin film for a non-aqueous electrolyte secondary battery obtained by the production method. The method for producing a resin film for a non-aqueous electrolyte secondary battery comprises the steps of: coating a separator with a resin composition containing a solvent and a vinylidene fluoride copolymer obtained by copolymerizing vinylidene fluoride and a compound represented by formula (1) below (coating step); and drying the separator on which the resin composition has been coated (drying step). In formula (1), R, R, and Rare each independently hydrogen atoms, chlorine atoms, or alkyl groups having from 1 to 5 carbons; and X' is an atomic group having a molecular weight of 472 or less and having a main chain configured from 1 to 19 atoms.