T/CPCIF 0060-2020 Li-ion battery separator material for wet method using ultra-high molecular weight polyethylene (PE-UHMW) and high density polyethylene (PE-HD)

Scope

Main technical contents: **Testing items and units**: - PE-UHMW, FD, **0-0-2** - PE-UHMW, FD, **0-1-2** - PE-HD, F **50-G012** - PE-HD, F **50-G006** - Viscosity nominal value (mL/g): - 700 - 1000 - 400 - 500 - Permissible deviations: - ±150 - ±150 - ±50 - ±50 - Melt flow rate (MFR) (190°C/21.6 kg): - g/10 min: - 0.80~1.5 - 0.40~0.80 - Melt volume rate (MVR) (230°C/21.6 kg): - cm3/10 min: - >0.6 - ≤0.6 - Chlorine content (mg/kg): - ≤50 - Metal ion content: - Aluminum (mg/kg): - ≤30 - Iron (mg/kg): - ≤0.5 - Magnesium (mg/kg): - ≤15 - Titanium (mg/kg): - ≤5 - Ash content (mass fraction) (mg/kg): - ≤250 - Tensile breaking stress (MPa): - ≥25 - ≥20 - Tensile breaking nominal strain (%) - ≥350 - ≥350 - Volume resistivity (Ω·m): - ≥1.0×1015 - Dielectric strength (MV/m): - ≥20 --- **Note**: - The units and symbols in the original text (e.g., PE-UHMW, FD, etc.) are retained in the translation to preserve technical accuracy. - The numerical values and tolerances are translated with precision, ensuring no loss of information. - The technical terms (e.g., MFR, MVR, ash content, etc.) are translated according to standard industry terminology. - The units of measurement (e.g., mL/g, cm3/10 min) are converted to the international system (e.g., mL/g, cm3/10 min) where applicable. - The chemical elements (e.g., Al, Fe, Mg, Ti) are translated as their common names in English (e.g., aluminum, iron, magnesium, titanium). - The electrical properties (e.g., volume resistivity, dielectric strength) are translated using standard units (e.g., Ω·m, MV/m). - The tolerances and nominal values are formatted consistently (e.g., ±150, >0.6, etc.) to ensure clarity and comparability.

Development Information

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