{"product_id":"czbrfbbcamep","title":"MEP (N-methyl-N-ethylpyrrolidinium bromide, 99.5%) as Bromine Complexing Agent for Zn-Br2 Redox Flow Battery, 50 g\/bottle, CZBRFBBCAMEP","description":"\u003cp\u003eIn Zinc-Bromine (Zn-Br2) batteries, MEP (N-methyl-N-methylpyrrolidinium bromide, or called N-Ethyl-N-methylpyrrolidinium bromide) is the industry-standard Bromine Complexing Agent (BCA). It is a quaternary ammonium salt used to manage the hazardous and highly reactive elemental bromine generated during the charging process. The roles of MEP in Zn-Br2 Batteries are mainly displayed as below: (1) \u003cstrong\u003eSelf-Discharge\u003c\/strong\u003e: Free Br2 can diffuse through the separator to the zinc anode, where it reacts directly with the metallic zinc, causing rapid energy loss. (2) \u003cstrong\u003eSafety Hazards\u003c\/strong\u003e: Br2 has a high vapor pressure (13 mbar at 20°C); it easily evaporates into a toxic red-brown gas.\u003c\/p\u003e\n\u003cp\u003eWhen Br2 is produced at the cathode during charge, it immediately reacts with the MEP molecules in the electrolyte to form polybromides (like [MEP]Br3 or [MEP]Br5). These complexes are: \u003cstrong\u003eImmiscible\u003c\/strong\u003e: They form a dense, oily red liquid phase that sinks to the bottom of the electrolyte tank. \u003cstrong\u003eStable\u003c\/strong\u003e: They significantly reduce the vapor pressure of the bromine, making the battery much safer. \u003cstrong\u003eReversible\u003c\/strong\u003e: During discharge, the oily phase is pumped back to the electrode, where the bromine is released and reduced back to bromide ions (Br-).\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 192.637px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 40.2375px;\"\u003e\n\u003ctd style=\"width: 35.0719%; height: 40.2375px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7482%; height: 40.2375px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCZBRFBBCAMEP (C-ZBRFB-BCAMEP)\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: 35.0719%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7482%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eOff-white powder (or light yellow)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0719%;\"\u003e\u003cem\u003ePurity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7482%;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.5%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0719%;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7482%;\"\u003e\n\u003cp\u003e\u003cspan\u003e69227-51-6\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0719%;\"\u003e\u003cem\u003eChemical Formula \u0026amp; Structure\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7482%;\"\u003e\n\u003cp\u003e\u003cspan\u003e C7H16BrN\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CZBRFBBCAMEP_chemical_structure_160x160.png?v=1769933752\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0719%;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7482%;\"\u003e\n\u003cp\u003e\u003cspan\u003e194.11\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35.0719%;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7482%;\"\u003e\n\u003cp\u003e\u003cspan\u003e50 g\/bottle\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:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/smll.202307627\"\u003eM. Zhao, et al., A Choline-Based Antifreezing Complexing Agent with Selective Compatibility for Zn–Br2 Flow Batteries, Small, 2024, 20, 2307627\u003c\/a\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775323005876\"\u003e\u003c\/a\u003e. \u003c\/p\u003e\n\u003cp\u003e(2) \u003ca href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acsenergylett.5c02463\"\u003eY. Liu, et al., Synergistic Electrolyte Design for High-Performance Static Zinc–Bromine Batteries, ACS Energy Lett. 2025, 10, 11, 5809–5824\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"YLDCYJS","offers":[{"title":"Default Title","offer_id":47313052467430,"sku":"CZBRFBBCAMEP","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CZBRFBBCAMEP_main.png?v=1769933752","url":"https:\/\/echemsupplies.com\/products\/czbrfbbcamep","provider":"EChem Supplies","version":"1.0","type":"link"}