{"product_id":"cbstpc2340","title":"PP\/PE\/PP Trilayer Composite (Celgard 2340) Disc \u0026 Roll (T=40 um) as Battery Separator, CBSTPC2340","description":"\u003cp\u003ePE (Polyethylene) separator is a high-performance, \"sandwich-style\" composite membrane used primarily in large-scale lithium-ion batteries for electric vehicles (EVs) and energy storage systems. By laminating a middle layer of Polyethylene (PE) between two outer layers of Polypropylene (PP), manufacturers create a separator that is both a structural backbone and a high-speed safety fuse. The primary reason for using a trilayer structure is to exploit the different melting points of the two materials to prevent thermal runaway. Polyethylene (the middle layer) has a relatively low melting point of ~130°C to 135°C. Polypropylene (the outer layers) has a significantly higher melting point of ~165°C.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 220.588px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 36.875px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 36.875px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 36.875px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCBSTPC2340 (C-BS-TP-C2340)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36.875px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 36.875px;\"\u003e\u003cem\u003eMaterial\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 36.875px;\"\u003e\n\u003cp\u003ePP\/PE\/PP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.0935%;\"\u003e\u003cem\u003eThickness\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%;\"\u003e\n\u003cp\u003eT=40 um\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 126.4px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 126.4px;\"\u003eDimension\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 126.4px;\"\u003e\n\u003cp\u003eRound Disc: Φ16 or 19 mm (100 pcs\/pack)\u003c\/p\u003e\n\u003cp\u003eRoll: (1) C2340 W60 mm * L60 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e        (2) C2340 W60 mm * L100 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: 20.438px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 20.438px;\"\u003e\u003cem\u003eParameters\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 20.438px;\"\u003e\n\u003cp\u003e               Thickness     Porosity      Puncture Strength\u003c\/p\u003e\n\u003cp\u003eC2340:     40 um           44%               700 gf\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.nature.com\/articles\/s41598-021-81644-3\"\u003eW. D. Hsu, et al. Preferential lattice expansion of polypropylene in a trilayer polypropylene\/polyethylene\/polypropylene microporous separator in Li-ion batteries, Scientific Reports, 2021, 11, 1929\u003c\/a\u003e.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0013468618301610\"\u003eY. Li, et al. Polypropylene\/polyethylene multilayer separators with enhanced thermal stability for lithium-ion battery via multilayer coextrusion, Electrochimica Acta, 2018, 264, 140-149\u003c\/a\u003e. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"SEN","offers":[{"title":"Round Disk: D16 mm","offer_id":48205320683750,"sku":"CBSTPC2340D16","price":69.0,"currency_code":"USD","in_stock":true},{"title":"Round Disk: D19 mm","offer_id":48205320716518,"sku":"CBSTPC2340D19","price":79.0,"currency_code":"USD","in_stock":true},{"title":"Roll: W60 mm * L60 m","offer_id":48205320749286,"sku":"CBSTPC2340RW60L60","price":129.0,"currency_code":"USD","in_stock":true},{"title":"Roll: W60 mm * L100 m","offer_id":48205320782054,"sku":"CBSTPC2340RW60L100","price":239.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBSTPC2340_main.jpg?v=1786953015","url":"https:\/\/echemsupplies.com\/products\/cbstpc2340","provider":"EChem Supplies","version":"1.0","type":"link"}