abstract |
A coated separator for a lithium ion battery contains the porous separator substrate, and coatings on at least one side of the separator. The organic coating contains a silane functionalized fluoropolymer-acrylic composition or a mixture of silane functionalized fluoropolymer and non-silane functionalized fluoropolymer. The present invention can improve the adhesion of the coated separator to electrodes and offer good swelling properties in electrolyte. |