{"product_id":"cbstpcm825","title":"PP\/PE\/PP Trilayer Composite (Celgard M825) Disc \u0026 Roll (T=16 um) as Battery Separator, CBSTPCM825","description":"\u003cp\u003eCelgard® M825 is an ultra-thin 16 µm dry-process trilayer microporous membrane (PP\/PE\/PP) designed as a safety separator for high-energy-density lithium-ion and advanced rechargeable battery systems. By sandwiching a polyethylene (PE) core between two outer polypropylene (PP) layers in a slim 16 µm profile, it delivers thermal shutdown safety, high oxidation resistance, and low cell internal impedance. \u003c\/p\u003e\n\u003cp\u003eThe main features of the 16 um PP\/PE\/PP composite separator are: (1) \u003cstrong\u003eThermal Shutdown Safety (PE Core)\u003c\/strong\u003e: The internal polyethylene layer melts at approximately ~ 130°C, closing the micropores and blocking ionic transport to interrupt current flow during thermal runaway risks. (2) \u003cstrong\u003eHigh Melt Integrity \u0026amp; Oxidation Resistance (PP Outer Shells)\u003c\/strong\u003e: The outer polypropylene layers have a higher melting point (~ 165°C) to preserve physical separation between electrodes, while offering high oxidative stability against high-voltage cathode surfaces. (3) \u003cstrong\u003eZero TD Shrinkage\u003c\/strong\u003e: Manufactured via Celgard’s dry uniaxial stretching process, the membrane exhibits 0.0% transverse direction shrinkage at elevated temperatures, preventing edge curling and internal short circuits. (4) \u003cstrong\u003eVolumetric Energy Density\u003c\/strong\u003e: At 16 µm, M825 allows for higher active material loading compared to standard 20 µm (e.g., Celgard 2320) and 25 µm (e.g., Celgard 2325) trilayer separators.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 199.95px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 36.875px;\"\u003e\n\u003ctd style=\"width: 19.561%; height: 36.875px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 80.118%; height: 36.875px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCBSTPCM825 (C-BS-TP-CM825)\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: 19.561%; height: 36.875px;\"\u003e\u003cem\u003eMaterial\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 80.118%; height: 36.875px;\"\u003e\n\u003cp\u003ePP\/PE\/PP\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 19.561%; height: 35.6px;\"\u003e\u003cem\u003eThickness\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 80.118%; height: 35.6px;\"\u003e\n\u003cp\u003eT=16 um\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.4px;\"\u003e\n\u003ctd style=\"width: 19.561%; height: 19.4px;\"\u003eDimension\u003c\/td\u003e\n\u003ctd style=\"width: 80.118%; height: 19.4px;\"\u003e\n\u003cp\u003eRound Disc: Φ16 or 19 mm (100 pcs\/pack)\u003c\/p\u003e\n\u003cp\u003eRoll: (1) W60 mm * L20 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e        (2) W60 mm * L100 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e        (3) W85 mm * L20 m (1 roll\/pack)\u003c\/p\u003e\n\u003cp\u003e        (4) W85 mm * L100 m (1 roll\/pack)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.2px;\"\u003e\n\u003ctd style=\"width: 19.561%; height: 71.2px;\"\u003e\u003cem\u003eParameters\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 80.118%; height: 71.2px;\"\u003e\n\u003cp\u003e              Thickness    Porosity     Average Pore Size    Puncture Strength \u003c\/p\u003e\n\u003cp\u003eM825:      16 um           39%           0.025 mm                   \u0026gt;300 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":48205413023974,"sku":"CBSTPCM825D16","price":69.0,"currency_code":"USD","in_stock":true},{"title":"Round Disk: D19 mm","offer_id":48205413056742,"sku":"CBSTPCM825D19","price":79.0,"currency_code":"USD","in_stock":true},{"title":"Roll: W60 mm * L20 m","offer_id":48205429604582,"sku":"CBSTPCM825RW60L20","price":79.0,"currency_code":"USD","in_stock":true},{"title":"Roll: W60 mm * L100 m","offer_id":48205413089510,"sku":"CBSTPCM825RW60L10","price":199.0,"currency_code":"USD","in_stock":true},{"title":"Roll: W85 mm * L20 m","offer_id":48205413122278,"sku":"CBSTPCM825RW85L20","price":109.0,"currency_code":"USD","in_stock":true},{"title":"Roll: W85 mm * L100 m","offer_id":48205429637350,"sku":"CBSTPCM825RW85L100","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBSTPCM25_main.jpg?v=1786955522","url":"https:\/\/echemsupplies.com\/products\/cbstpcm825","provider":"EChem Supplies","version":"1.0","type":"link"}