{"product_id":"cvrfbiemsppsu","title":"Sulfonated Polyphenylsulfone (SPPSU) Ion-Exchange Membrane for Vanadium Redox Flow Battery (VRFB), CVRFBIEMSPPSU","description":"\u003cp\u003eIn a Vanadium Redox Flow Battery (VRFB), the SPPSU (Sulfonated Polyphenylsulfone) membrane acts as the \"gatekeeper.\" Its job is to allow protons (H^+) to pass through to complete the electrical circuit while blocking vanadium ions (V^{2+}, V^{3+}, VO^{2+}, VO2^+) from mixing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIon Selectivity\u003c\/strong\u003e: SPPSU has a high ion selectivity, which is the ratio of proton conductivity to vanadium permeability. Because the pores in SPPSU are generally smaller and less interconnected than those in perfluorinated membranes, the bulky vanadium ions find it much harder to \"leak\" through.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCapacity Retention\u003c\/strong\u003e: Because it blocks vanadium crossover so effectively, VRFBs using SPPSU often show much higher Coulombic Efficiency (CE) and slower capacity decay over hundreds of cycles.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 182.637px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 40.2375px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 40.2375px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 40.2375px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCVRFBIEMSPPSU (C-VRFB-IEM-SPPSU)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eChemical Formula\/Structure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CVRFBIEMSPPSU_chemical_structure_160x160.png?v=1770181139\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eTransparent\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: 35.0575%; height: 35.6px;\"\u003e\u003cem\u003eSulfation Degree \u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e30%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 35.0575%; height: 35.6px;\"\u003e\u003cem\u003eDimension\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eT 25 or 50 um * L 100mm * W 100 mm (Other membrane sizes can be supplied upon request)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eIon Conductivity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003e7.9 mS\/cm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eTensile Strength\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003e40-45 MPa\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0575%;\"\u003e\u003cem\u003eApplication Note\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%;\"\u003e\n\u003cp\u003e\u003cspan\u003e(1) The 25 um thickness membrane is mainly used for high energy density field due to its low resistance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(2) The 50 um thickness membrane is mainly used for long-term cycling filed due to its high blocking capability to vanadium ions.\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: 35.0575%; height: 35.6px;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7626%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e1 pcs\/pack\u003c\/span\u003e\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\u003cstrong\u003eReferences\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e(1）\u003ca href=\"https:\/\/pubs.rsc.org\/en\/content\/articlelanding\/2016\/ta\/c6ta00698a\/unauth\"\u003eB. P. Gindt, et al., Nanoporous polysulfone membranes via a degradable block copolymer precursor for redox flow batteries, J. Mater. Chem. A, 2016,4, 4288-4295\u003c\/a\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0376738808007618\"\u003e\u003c\/a\u003e. \u003c\/p\u003e\n\u003cp\u003e(2) \u003ca href=\"https:\/\/pubs.acs.org\/doi\/full\/10.1021\/acsapm.4c01262\"\u003eS. Swaby, et al., Block Copolymer-Based Membranes for Vanadium Redox Flow Batteries: Synthesis, Characterization, and Performance, ACS Appl. Polym. Mater. 2024, 6, 15, 8966–8976\u003c\/a\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0376738820310255\"\u003e.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ZHCN","offers":[{"title":"T 25um * W 100mm * L100mm","offer_id":47323586494694,"sku":"CFBEFCIEMSPEEKT25","price":49.0,"currency_code":"USD","in_stock":true},{"title":"T 50um * W 100mm * L100mm","offer_id":47323586527462,"sku":"CVRFBIEMSPPSUT50","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CVRFBIEMSPPSU_main.png?v=1770181139","url":"https:\/\/echemsupplies.com\/products\/cvrfbiemsppsu","provider":"EChem Supplies","version":"1.0","type":"link"}