T/WS 0006-2023 Active Group standards

T/WS 0006-2023 Lithium battery flame-retardant polypropylene Mylar film

Publish Date: 2023-03-17 Implement Date: 2023-03-24 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/WS 0006-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Films and sheets

Publish Date: 2023-03-17

Implement Date: 2023-03-24

Pages: 13 pages

Scope

Scope: This standard specifies the product classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments for flame-retardant polypropylene Mylar films used in lithium batteries (hereinafter referred to as Mylar films). This standard applies to Mylar films made by extrusion and calendering using polypropylene as the main raw material and adding appropriate additives. Main technical contents: **Mechanical properties**: - Tensile strength, MPa: longitudinal ≥ 29, transverse ≥ 27 - Elongation at break, %: longitudinal ≥ 480, transverse ≥ 430 - Puncture strength, N/mm ≥ 80 - Wettability tension a (after corona treatment, on the backside of the adhesive layer), mN/m ≥ 38 (a). The wettability tension only applies to corona-treated Mylar films. **Electrical properties**: - Dielectric strength, kV/mm ≥ 65 - Volume resistivity, Ω·cm ≥ 1×1016 - Surface resistivity, Ω ≥ 5×1014