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GB/T 36146-2018: Rolled copper foil for lithium ion battery Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 36146-2018: Rolled copper foil for lithium ion battery---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT36146-2018GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.150.30 H 62 Rolled copper foil for lithium ion battery Issued on: MAY 14, 2018 Implemented on: FEBRUARY 01, 2019 Issued by. State Administration for Market Regulation; Standardization Administration of the PRC. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Requirements ... 5 4 Test methods ... 7 5 Inspection rules ... 8 6 Marking, packing, transportation, storing, and certificate of quality ... 10 7 Order form (or contract) content ... 10 Rolled copper foil for lithium ion battery1 ScopeThis Standard specifies the requirements, test methods, inspection rules, marking, packing, transportation, storing, certificate of quality, and order form (or contract) content of rolled copper foil for lithium ion battery. This Standard applies to the rolled copper foil (hereinafter known as copper foil for short) for manufacture of lithium ion battery.2 Normative referencesThe following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document. GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys GB/T 5231 Designation and chemical composition of wrought copper and copper alloys GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 8888 Wrought heavy non-ferrous metal products - packing, marking, transportation, storing and certificate of quality GB/T 22638.4 Test methods for aluminium and aluminium alloy foils - Part 4. Determination of surface wetting tension GB/T 26303.3 Measuring methods for dimensions and shapes of wrought copper and copper alloys - Part 3. Sheets and strips GB/T 29847-2013 Test methods for copper foil used for printed boards YS/T 668 The sampling method of physical and chemical testing for copper and copper alloys 3.5.2 Oxidation resistance Copper foil, after heat preservation at 140 °C±2 °C for 15 min, shall not be oxidized and discolored. 3.5.3 Surface roughness The surface roughness (Ra value) of copper foil shall not be more than 0.2 μm. 3.5.4 Pinhole The size and number of copper foil pinholes shall be agreed upon by the supplier and the purchaser. 3.5.5 Appearance quality The surface of copper foil shall be clean, flat, and uniform in color. There shall be no oxidative discoloration, scratches, spots, wrinkles, indentations, fingerprints. There shall be no foreign matters such as dust, grease, salts, copper powder, stains which affect processing and use. The edges shall be neat, without nicks, tears, folds, and wavy edges, etc..4 Test methods4.1 Chemical composition The methods of arbitration analysis of the chemical composition of copper foil shall be in accordance with the provisions of GB/T 5121 (all parts). 4.2 Overall dimensions and their tolerances 4.2.1 Unit area mass The inspection method for the unit area mass of copper foil shall be in accordance with the provisions of 6.4 in GB/T 29847-2013. 4.2.2 Width The inspection method for the width of copper foil shall be in accordance with the provisions of GB/T 26303.3. 4.3 Mechanical properties The tensile strength and percentage elongation after fracture of copper foil shall be determined in accordance with the provisions of 7.1 in GB/T 29847-2013. 4.4 Surface quality 5.5.1 Rounding off for numerical values and judgement of inspection results shall be carried out according to the provisions of GB/T 8170. 5.5.2 When the chemical composition is unqualified, the lot of products is judged to be unqualified. 5.5.3 When the overall dimensions and their tolerances are unqualified, the lot of products represented by the sample is judged to be unqualified. 5.5.4 When the mechanical properties are unqualified, from the lot of products (including the roll of products represented by the unqualified sample), double the number of samples shall be taken for repeated testing. If the repeated test results are all qualified, the lot of products is judged to be qualified. If there are still samples having unqualified properties in the repeated test results, the lot of products is judged to be unqualified; or the supplier inspects roll by roll, and the qualified products are delivered. 5.5.5 When the surface wetting tension, oxidation resistance, roughness, and pinhole are unqualified, from the lot of products (including the roll of products represented by the unqualified sample), double the number of samples shall be taken for repeated testing. If the repeated test results are all qualified, the lot of products is judged to be qualified. If there are still samples having unqualified properties in the repeated test results, the lot of products is judged to be unqualified; or the supplier inspects roll by roll, and the qualified products are delivered. 5.5.6 When the appearance quality is unqualified, this roll of products is judged to be unqualified.6 Marking, packing, transportation, storing, andcertificate of quality The marking, packing, transportation, storing, and certificate of quality of copper foil shall comply with the provisions of GB/T 8888.7 Order form (or contract) contentThe order form (or contract) for ordering the products listed in this Standard shall include the following contents. a) Product name; b) Designation; ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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