Crosslinking polymer-supported porous film for battery separator and method for producing battery using the same

摘要

The method for producing a battery, includes the steps of: laminating electrodes on the crosslinking polymer-supported porous film to prepare a laminate of crosslinking polymer-supported porous film/electrodes; placing the laminate in a battery container; and pouring an electrolyte solution containing a cation polymerization catalyst in the battery container to induce cation polymerization and crosslinking of the crosslinking polymer, thereby at least partially gelling the electrolyte solution to adhere the porous film and the electrodes.

主权项

1. A method for producing a battery, comprising the following in order:
coating a porous film with a solution comprising a crosslinking polymer having a 3-oxetanyl group, laminating electrodes on the porous film to prepare a laminate of the porous film and the electrodes placing the laminate in a battery container, and pouring an electrolyte solution containing a cation polymerization catalyst in the battery container to induce cation polymerization and crosslinking of the crosslinking polymer, thereby at least partially gelling the electrolyte solution to adhere the porous film and the electrodes, wherein the porous film comprises a polyolefin resin and wherein the crosslinking polymer has a weight average molecular weight of 100,000 to 2,000,000.