Flexible packaging polymer lithium ion battery tab
1. Purpose Provide the company with product technical conditions to ensure that product quality is under control and meet customer requirements. 2 Scope of application Applicable to soft polymer lithium ion battery ear, as the basis for customer order product shipment inspection. 3 Technical Conditions and Related Content 3.1 Product Description: a) Name: Aluminum tab, nickel tab b) Guilloche color: black, yellow 3.2 Product shipment form a) Roll b) Plate 3.3 Physical properties: 3.3.1 Product Dimensions:
3.3.4 Thermal properties: The insulating layer (PP) has a melting point range of 130°C to 150°C. 3.3.5 Encapsulation: Bonding strength with aluminum plastic packaging tape >10N/5mm 3.3.6 Mechanical properties: Bonding strength of insulation layer and tabs >7N/15mm 3.3.7 Appearance and Shape:: The surface should be flat and consistent, no wrinkles, no cracks, no oil stains, no color change, no rust, and other defects. The cross-section should be a regular long square. The maximum horizontal burr should not exceed 0.050mm, and the maximum longitudinal burr should not exceed 0.02mm. 3.3.8 Flexural resistance: R angle greater than 0.2mm, 90°, and bending greater than 10 times. 3.4 Chemical Properties: 3.4.1 Chemical composition 126.96.36.199 Aluminum tape a) Content (%) Al≥99.5 b) Impurities (%) Cu, Mn, Mg, Zn, Si, Fe, etc. ≤ 0.50 188.8.131.52 Nickel strips a) Content (%) Ni≥99.5 b) Impurities (%) Cu, Mn, Fe, C, Si, S, etc. ≤ 0.50 3.4.2 Corrosion resistance The ears are soaked in the electrolyte (600ppm moisture content) for 24 hours, the temperature is controlled at 60°C, the substrate and tabs The glue does not fall off on its own. 3.4.3 Restrictions on the types and limits of hazardous substances used: The testing requirements for limiting the types and limits of hazardous substances used meet ROSH certification requirements. 4 storage conditions and time Storage conditions: Closed packaging at room temperature. Avoid moisture and chemical atmospheres, avoid direct sunlight, and prevent oxidation and appearance damage. Storage time: The storage time should not exceed 6 months, that is, normal use within 6 months. 5Transportation 5.1 Packaging Specifications: a) The roll type finished product is packaged in rolls, with an outer diameter of Φ300mm, an inner diameter of Φ100mm, and the normal number of coils is about 4,000 per plate. Coil joints and defective quantities are controlled in batches of 1 to 4-5 per batch. b) The plate type finished product is packaged in a chip package, and the PET film is used to protect both ends of the ear. 5.2 Transportation requirements: Prevent collision, extrusion, moisture, and damage.