{"product_id":"cazibchpi2","title":"High Purity Iodine (I2, \u003e99.99%) Powder for Aqueous Zn-I2 Battery Cathode, 50-200 g\/Bottle, CAZIBCHPI2","description":"\u003cp\u003eHigh-purity iodine (I2) powder serves as the core active cathode material for aqueous zinc-iodine (Zn-I2) batteries. Operating on a fast, reversible two-electron redox conversion between iodide ions and elemental iodine, it delivers a high theoretical specific capacity (~ 211 mAh\/g based on iodine) at a stable potential platform of ~1.2–1.3 V.\u003c\/p\u003e\n\u003cp\u003eThe key considerations for I2 cathode implementation are: (1) \u003cstrong\u003eElectronic Conductivity Enhancement\u003c\/strong\u003e: Elemental iodine is intrinsically an electrical insulator. To unlock high rate capabilities, high-purity I2 powder must be thoroughly blended and ball-milled with conductive carbon hosts (such as Super P, multi-walled carbon nanotubes, graphene, or porous carbon frameworks) that provide a continuous electronic pathway. (2) \u003cstrong\u003eConfined Architecture \u0026amp; Mitigation of Sublimation\/Dissolution\u003c\/strong\u003e: I2 has a notable vapor pressure and can sublime easily if stored improperly. More critically, intermediate polyiodide species (I3^-, I5^-) generated during discharge are highly soluble in aqueous electrolytes, leading to the shuttle effect (where active material migrates to the zinc anode, causing self-discharge). High-performance cathodes often utilize porous carbon matrices with physical or chemical confinement (such as oxygen\/nitrogen-functionalized carbon or metal-organic frameworks) to trap the iodine species locally. (3) \u003cstrong\u003ePurity Requirements\u003c\/strong\u003e: sing high-purity grades (\u0026gt;99.9%) ensures the absence of reactive halide or metallic trace contaminants that could trigger parasitic side reactions, accelerate self-discharge, or induce localized corrosion in the aqueous zinc sulfate\/halide electrolyte environment.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100.036%; height: 207.6px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6898%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.1319%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCAZIBCHPI2 (C-AZIB-C-HPI2)\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: 33.6898%; height: 35.6px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.1319%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e7553-56-2\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"width: 33.6898%; height: 10px;\"\u003e\u003cem\u003ePurity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.1319%; height: 10px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.99%\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: 33.6898%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.1319%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eviolet-black flakes\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: 33.6898%; height: 35.6px;\"\u003e\u003cem\u003eMolar Mass\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.1319%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e253.81 g\/mol\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.6898%; height: 19.6px;\"\u003e\u003cem\u003eMelt Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.1319%; height: 19.6px;\"\u003e\u003cspan\u003e113 °C (lit.)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6898%; height: 35.6px;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.1319%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e50 g, 100 g, and 200 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\u003cspan\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e: \u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/abs\/10.1002\/aenm.202404426\"\u003eD. Li, et al. A MXene Modulator Enabled High-Loading Iodine Composite Cathode for Stable and High-Energy-Density Zn-I2 Battery, Adv. Energy Mater., 2025, 15, 2404426\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/anie.202507497\"\u003eB. Qi, et al. Confinement of Polyiodides by Dual-Functional Tetrazine Cathodes in Zn–I2 Batteries, Angew Chem Int Ed, 2025, 64, e202507497\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MKL","offers":[{"title":"50 g","offer_id":67647039766758,"sku":"CAZIBCHPI2W50","price":99.0,"currency_code":"USD","in_stock":true},{"title":"100 g","offer_id":67647039799526,"sku":"CAZIBCHPI2W100","price":179.0,"currency_code":"USD","in_stock":true},{"title":"200 g","offer_id":67647039832294,"sku":"CAZIBCHPI2W200","price":319.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CAZIBCHPI2_main.jpg?v=1791402354","url":"https:\/\/echemsupplies.com\/products\/cazibchpi2","provider":"EChem Supplies","version":"1.0","type":"link"}