{"id":6894,"date":"2026-05-11T17:22:37","date_gmt":"2026-05-11T09:22:37","guid":{"rendered":"https:\/\/oqitop.com\/?post_type=product&p=6894"},"modified":"2026-05-28T17:26:33","modified_gmt":"2026-05-28T09:26:33","slug":"custom-composite-copper-foil-current-collector-sputtered-electroplated-functional-foil-for-lithium-ion-batteries","status":"publish","type":"product","link":"https:\/\/oqitop.com\/ja\/custom-composite-copper-foil-current-collector-sputtered-electroplated-functional-foil-for-lithium-ion-batteries\/","title":{"rendered":"Custom Composite Copper Foil Current Collector | Sputtered & Electroplated Functional Foil for Lithium-Ion Batteries"},"content":{"rendered":"

Custom Composite Copper Foil Current Collector<\/span><\/h2>\n

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\u306f\u3058\u3081\u306b<\/strong><\/b><\/p>\n

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  1. Our composite copper foil current collector is a functional multilayer foil designed specifically for lithium-ion and next\u2011generation batteries. Based on high\u2011purity battery\u2011grade copper foil, the surface is modified by vacuum magnetron sputtering and\/or electroplating to introduce functional layers (such as adhesion\u2011promoting, corrosion\u2011resistant, or high\u2011wettability coatings). These engineered interfaces improve slurry adhesion, suppress side reactions, enhance cycling stability, and can be tailored for anode or cathode use in advanced cell designs.<\/li>\n
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    We offer fully customizable composite copper foils, including copper thickness, coating type and thickness (sputtered or electroplated), one\u2011side or double\u2011side treatment, surface roughness, and roll width\/length. The foils are compatible with conventional electrode coating and calendaring processes and are suitable for laboratory research, pilot lines, and specialty high\u2011performance cells. Technical data sheets and engineering support are available to help you select or design the right composite current collector for silicon\u2011carbon anodes, high\u2011voltage cathodes, solid\u2011state systems, and other demanding lithium\u2011battery applications.<\/p>\n

    \u4ed5\u69d8<\/strong><\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    \u30bf\u30a4\u30d7<\/td>\nComposite Copper Foil \/ Functional Copper Foil \/ Vacuum\u2011Sputtered & Electroplated Copper Current Collector for Lithium\u2011Ion Batteries<\/td>\n<\/tr>\n
    Structure<\/td>\nMultilayer structure based on battery\u2011grade copper foil with one or more functional coatings applied by\u00a0vacuum magnetron sputtering<\/strong>\u00a0and\/or\u00a0electroplating<\/strong>\u00a0(e.g. adhesion\u2011promoting, protective, or conductive functional layers)<\/td>\n<\/tr>\n
    Base Material (Cu Foil)<\/td>\nHigh\u2011purity lithium\u2011battery copper foil (typically \u226599.9% Cu), rolled or electrolytic, produced in accordance with common Li\u2011ion copper foil standards (ASTM\/EN\/GB equivalents)<\/td>\n<\/tr>\n
    Copper Thickness<\/td>\nCustomizable; typical battery foil thickness range approx.\u00a04\u201312 \u03bcm<\/strong>\u00a0(thinner or thicker foils available on request for special designs)<\/td>\n<\/tr>\n
    Coating Types<\/td>\nInorganic or metallic functional layers (e.g. adhesion layers, corrosion\u2011resistant layers, wetting\u2011improvement layers) deposited by vacuum magnetron sputtering and\/or electroplating, tailored to anode or cathode requirements<\/td>\n<\/tr>\n
    Coating Thickness<\/td>\nCustomizable nanometer\u2013micrometer range, depending on process and function; sputtered layers generally nm\u2013sub\u2011\u03bcm, electroplated layers typically up to several \u03bcm<\/td>\n<\/tr>\n
    Electrical Properties<\/td>\nCopper core provides low resistivity and high in\u2011plane conductivity; coatings engineered to maintain good current collection while improving interface stability and contact with active material<\/td>\n<\/tr>\n
    Thermal Properties<\/td>\nGood in\u2011plane thermal conductivity from copper foil, suitable for heat spreading in Li\u2011ion cells; coatings selected to withstand standard electrode drying\/calendaring conditions<\/td>\n<\/tr>\n
    Surface Characteristics<\/td>\nControlled surface roughness and chemistry on one or both sides to enhance slurry adhesion, reduce interface resistance, suppress gas evolution, and improve cycle stability<\/td>\n<\/tr>\n
    \u30d5\u30a9\u30fc\u30e0<\/td>\nSupplied mainly in roll (coil) form for coating lines; cut sheets available for laboratory and small\u2011format cell research<\/td>\n<\/tr>\n
    Thickness Range (Total)<\/td>\nDetermined by copper thickness plus coating(s); typical total thickness remains within standard battery foil range to ensure compatibility with existing electrode coating and calendaring equipment<\/td>\n<\/tr>\n
    Width & Length<\/td>\nRoll width typically from\u00a0100 mm to 600 mm<\/strong>\u00a0for lab and pilot use (wider industrial widths on request); roll length according to thickness and order specification<\/td>\n<\/tr>\n
    Application Range<\/td>\nLithium\u2011ion and next\u2011generation cells (pouch, cylindrical, prismatic), especially high\u2011energy anodes (e.g. Si\u2011based), high\u2011voltage cathodes, solid\u2011state\/semisolid concepts, and R&D cells requiring enhanced interface stability<\/td>\n<\/tr>\n
    Interface Stability<\/td>\nCoatings designed to improve adhesion between active layer and current collector, mitigate side reactions at the Cu\/electrode interface, and enhance cycling life and rate performance<\/td>\n<\/tr>\n
    Processing Compatibility<\/td>\nCompatible with standard slurry coating (slot\u2011die, comma bar, doctor blade), drying, calendaring, slitting, stacking, and winding processes used in Li\u2011ion cell manufacturing and laboratory prototyping<\/td>\n<\/tr>\n
    Standards & Reference<\/td>\nManufactured with reference to battery copper foil standards and applicable thin\u2011film \/ electroplating process controls; specific test data (adhesion, roughness, resistivity, peel strength) available on technical datasheets upon request<\/td>\n<\/tr>\n
    Quality Control<\/td>\nCoating thickness, uniformity, adhesion, and surface properties monitored by inline and offline measurement; samples can be characterized by microscopy, roughness, and electrochemical tests for R&D customers<\/td>\n<\/tr>\n
    Customization<\/td>\nTailored Cu thickness, coating type and thickness, one\u2011side or two\u2011side functionalization, surface roughness, roll width\/length, and lab\u2011sheet formats according to customer drawings, electrode design, and process requirements<\/td>\n<\/tr>\n
    Packaging<\/td>\nClean\u2011room\u2011compatible roll or sheet packaging; moisture\u2011barrier film and desiccant as required; carton or wooden\u2011case outer packing for safe storage and international transport<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/li>\n<\/ol>\n

    \u53c2\u8003\u5bf8\u6cd5<\/strong><\/b><\/p>\n\n\n\n\n\n
    0.1mm*50mm*5000mm<\/td>\n0.2mm*100mm*10000mm<\/td>\n0.1mm*200mm*20000mm<\/td>\n<\/tr>\n
    0.2mm*300mm*300000mm<\/td>\n0.3mm*500mm*50000mm<\/td>\n0.1mm*500mm*100000mm<\/td>\n<\/tr>\n
    0.2mm*500mm*200000mm<\/td>\n0.1mm to 50mm*100000mm*100000mm<\/td>\n\u30b5\u30a4\u30ba\u306f\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u53ef\u80fd\u3067\u3059<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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