{"product_id":"cafbcctcfr","title":"Tin (Sn) Coated Copper Foil Roll as Anode-Free Battery Current Collector, CAFBCCTCFR","description":"\u003cp\u003eTin-coated copper foil is an advanced current collector material primarily used in high-performance lithium-ion, lithium-metal, and next-generation battery architectures. Unlike standard bare copper, which is susceptible to surface oxidation and interfacial instability, a tin (Sn) coating provides a lithiophilic (lithium-loving) interface that significantly improves electrochemical contact and cell longevity.\u003c\/p\u003e\n\u003cp\u003eThe primary goal of applying a tin layer to a copper substrate is to modify the surface chemistry to create a more stable, conductive, and uniform interface for lithium deposition or active material adhesion. (1) \u003cstrong\u003eLithiophilic Nucleation\u003c\/strong\u003e: Tin readily alloys with lithium to form a LixSn intermetallic layer. This acts as a \"seed layer,\" lowering the energy barrier for lithium nucleation and promoting uniform, planar lithium plating instead of dendritic growth. (2) \u003cstrong\u003eEnhanced Interfacial Adhesion\u003c\/strong\u003e: For silicon-based anodes—which undergo massive volume expansion (\u0026gt;300%) during cycling—the tin layer acts as a mechanical buffer and chemical bridge, improving the binding between the silicon particles and the current collector to prevent delamination. (3) \u003cstrong\u003eImproved Corrosion Resistance\u003c\/strong\u003e: Tin provides a robust barrier against electrolyte-induced corrosion of the copper substrate, which is particularly critical in high-voltage battery systems or when using aggressive electrolyte additives. (4) \u003cstrong\u003eLower Contact Resistance\u003c\/strong\u003e: The formation of a metallic intermetallic bond between the anode material and the current collector reduces charge-transfer resistance, improving power density and rate capability.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 245.4px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 30.7762%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.0439%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCAFBCCTCFR (C-AFBCC-TCFR)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 106.8px;\"\u003e\n\u003ctd style=\"width: 30.7762%; height: 106.8px;\"\u003e\u003cem\u003eCopper Foil Substrate\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.0439%; height: 106.8px;\"\u003e\n\u003cp\u003e\u003cspan\u003eT = 8 um, double-side shiny\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eT = 9 um, double-side shiny\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eT = 12 um, double-side shiny\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: 30.7762%; height: 35.6px;\"\u003e\u003cem\u003eSn Coating Layer\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.0439%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eT =~2 um\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 67.4px;\"\u003e\n\u003ctd style=\"width: 30.7762%; height: 67.4px;\"\u003e\u003cem\u003eFoil Size Options\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.0439%; height: 67.4px;\"\u003e\n\u003cp\u003e(1) Single-Side Coating: T(8+2) um * W220 mm * L23 m\u003c\/p\u003e\n\u003cp\u003e(2) Double-Side Coating: T(2+9+2) um * W280 mm * L18 m\u003c\/p\u003e\n\u003cp\u003e(3) Double-Side Coating: T(2+12+2) um * W340 mm * L15 m\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eOther customized sizes can be supplied upon request. \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\u003col\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0013468617325379\"\u003eS. S. Zhang, et al., A tin-plated copper substrate for efficient cycling of lithium metal in an anode-free rechargeable lithium battery, Electrochimica Acta, 2017, 258, 1201-1207.\u003c\/a\u003e \u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0169433216327507\"\u003eH. Park, et al., Hierarchical micro-lamella-structured 3D porous copper current collector coated with tin for advanced lithium-ion batteries, Applied Surface Science, 2017, 399, 132-138.\u003c\/a\u003e \u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775310022275\"\u003eS. Zhang, et al., A three-dimensional tin-coated nanoporous copper for lithium-ion battery anodes, Journal of Power Sources, 2011, 196, 6915-6919. \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ASM","offers":[{"title":"Single-Side Coating: T(8+2) um * W220 mm * L23 m","offer_id":47766662316262,"sku":"CAFBCCTCFRSST8W220L23","price":599.0,"currency_code":"USD","in_stock":true},{"title":"Double-Side Coating: T(2+9+2) um * W280 mm * L18 m","offer_id":47766662349030,"sku":"CAFBCCTCFRDST9W280L18","price":649.0,"currency_code":"USD","in_stock":true},{"title":"Double-Side Coating: T(2+12+2) um * W340 mm * L15 m","offer_id":47766662381798,"sku":"CAFBCCTCFRDST12W340L15","price":649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CAFBCCTCFR_main.jpg?v=1781404274","url":"https:\/\/echemsupplies.com\/products\/cafbcctcfr","provider":"EChem Supplies","version":"1.0","type":"link"}