| abstract |
A battery packaging material having high moldability and excellent battery continuous productivity, and a method for producing the battery packaging material. A method for measuring the amount of an amide lubricant located on the surface of a sealant layer of a battery packaging material, comprising: At least a step of preparing a battery packaging material comprising a laminate in which a base material layer, a metal layer, and a sealant layer containing a polyolefin resin and an amide lubricant are sequentially laminated; From the absorption spectrum obtained by dispersing the reflected light when the surface of the sealant layer is irradiated with infrared rays, the peak intensity P of 1650 cm −1 derived from the C═O stretching vibration of the amide group of the amide-based lubricant, Measuring the peak intensity Q of 1460 cm −1 derived from the group —CH 2 —variable vibration of the polyolefin resin, and calculating the intensity ratio X = P / Q of the peak intensity P to the peak intensity Q; A method for measuring the amount of an amide-based lubricant located on the surface of a sealant layer of a battery packaging material. [Selection figure] None |