The "waste plastic separator" refers to plastic separator products that have lost their original functionality due to damage, aging, performance degradation, or end-of-life during battery manufacturing, packaging and transportation, construction, and other applications, or those that, although not entirely devoid of utility, have been discarded. After collection, sorting, cleaning, and crushing, such waste plastic separators can be processed into recycled plastic raw materials and reused in the production of battery separators, packaging materials, construction materials, or other plastic products, thereby achieving resource recovery and utilization.