{"product_id":"cbsepp","title":"Economic PP (Polypropylene) Disc \u0026 Roll (T=25 um, L=800m) as Battery Separator, CBSEPP","description":"\u003cp\u003e5PE (Polyethylene) separator is favored for its superior thermal shutdown characteristics and its ability to be made into thinner, more porous membranes. The key features of PE separator are shown below: (1) \u003cstrong\u003eLow Melting Point\u003c\/strong\u003e (~135°C): This is the \"Goldilocks\" temperature for safety. It is high enough for normal operation but low enough to melt and \"shut down\" the battery (by clogging the pores) before the cell reaches the point of thermal runaway. (2)\u003cstrong\u003e High Porosity\u003c\/strong\u003e: PE membranes are typically manufactured using a \"wet process,\" which allows for much higher porosity (up to 50%) and more uniform pore distribution compared to the dry-stretched PP process. (3) \u003cstrong\u003eFlexibility\u003c\/strong\u003e: PE is more flexible and less brittle than PP, making it easier to wind into the tight cylindrical shapes required for 18650 or 21700 cells.\u003c\/p\u003e\n\u003cp\u003eUnlike the dry process used for PP (which relies on mechanical stretching), PE separators are usually made through Phase Inversion (The Wet Process).\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 201.2px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCBSEPP (C-BS-EPP)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 35.6px;\"\u003e\u003cem\u003eMaterial\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 35.6px;\"\u003e\n\u003cp\u003ePP (Polypropylene), Dry Method\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 106.8px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 106.8px;\"\u003eDimension\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 106.8px;\"\u003e\n\u003cp\u003eRound Disc: Φ16 or 19 mm, T 25 um (100 pcs\/pack)\u003c\/p\u003e\n\u003cp\u003eRoll: (1) T 25 um * W60 mm\u003cem\u003e \u003c\/em\u003e* L100 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e        (2) T 25 um * W60 mm\u003cem\u003e \u003c\/em\u003e* L800 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e        (3) T 25 um * W110 mm\u003cem\u003e \u003c\/em\u003e* L800 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e        (4) T 25 um * W196 mm\u003cem\u003e \u003c\/em\u003e* L800 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e        (5) T 25 um * W273 mm\u003cem\u003e \u003c\/em\u003e* L800 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e(Roll with other width and length can be provided upon request)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 23.2px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 23.2px;\"\u003e\u003cem\u003eParameters \u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 23.2px;\"\u003e\n\u003cp\u003e              Area Density     Porosity     Penetration Strength\u003c\/p\u003e\n\u003cp\u003eT25 um:    13.2 g\/m2         42%                     450 g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e: \u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S016943321302076X\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eB. Li, et al. Surface modification of polypropylene battery separator by direct fluorination with different gas components, Electrochimica Acta, 2014, 290, 137-141\u003c\/a\u003e.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0013468615008221\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eX. Li, et al. Development of plasma-treated polypropylene nonwoven-based composites for high-performance lithium-ion battery separators, Electrohimica Acta, 2015, 167, 396-403\u003c\/a\u003e. \u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"SZKJ","offers":[{"title":"D16 mm * T25 um","offer_id":47755193680102,"sku":"CBSEPPD16","price":49.0,"currency_code":"USD","in_stock":true},{"title":"D19 mm * T25 um","offer_id":47755193712870,"sku":"CBSEPPD19","price":49.0,"currency_code":"USD","in_stock":true},{"title":"T25 um * W60 mm * L100 m","offer_id":47755193745638,"sku":"CBSEPPRW60L100","price":59.0,"currency_code":"USD","in_stock":true},{"title":"T25 um * W60 mm * L800 m","offer_id":47755193778406,"sku":"CBSEPPRW60L800","price":119.0,"currency_code":"USD","in_stock":true},{"title":"T25 um * W110 mm * L800 m","offer_id":47755193811174,"sku":"CBSEPPRW110L800","price":189.0,"currency_code":"USD","in_stock":true},{"title":"T25 um * W196 mm * L800 m","offer_id":47755787305190,"sku":"CBSEPPRW196L800","price":349.0,"currency_code":"USD","in_stock":true},{"title":"T25 um * W273 mm * L800 m","offer_id":47755787337958,"sku":"CBSEPPRW273L800","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBSEPP_main.png?v=1780979855","url":"https:\/\/echemsupplies.com\/products\/cbsepp","provider":"EChem Supplies","version":"1.0","type":"link"}