Battery coated separator series |
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| The self-developed bio-based polyamide coating material is combined with various adhesives and combined with ceramic or Boehmite layers. It is treated by water-based or oil-based coating process technology and adheres to the surface of base films produced by different methods. It can significantly improve the high-temperature stability of new energy batteries and enhance their safety. It is suitable for high-performance battery products, and material solutions can be customized. | |
| High security The oil-based aramid coated separator still retains elasticity and toughness after being exposed to 200℃ for 1 hour. The battery assembled with aramid separator passed through the 150℃ heat box. The pass rate of battery thermal needling is high. |
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| Long lifespan The cycle of lithium metal batteries has been improved by 30%. The cycle of manganese-based batteries has been improved by more than 20%. The sodium-electric cycle has increased by more than 40%. |
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| High magnification Decreased DCR; The temperature rise of high-rate charge and discharge batteries has decreased significantly. |
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Furan-based Aramid water-coated separator ST04
Recipe Number :ST04
Features:
High electrolyte wettability
Compatible with water coating process
The membrane breaking temperature is above 250℃
Fast charging
Application:
Semi-solid batteries, lithium iron phosphate power, large energy storage batteries, cylindrical batteries
| Product type | Water coating | |||||
| Product materials | Bio-aramid (BA1130), ceramic | |||||
| Diaphragm type | 7(PE) | 2+7+2 | 9(PE) | 1.5+9+1.5 | ||
| Product thickness | μm | 7.78 | 11.62 | 8.86 | 12.12 | |
| Infiltration rate | mm/60s | 18 | 117 | 16 | 112 | |
| Surface density | g/cm² | 4.22 | 11.42 | 5.17 | 11.42 | |
| Air permeability rate | s/100ml | 114 | 210 | 145 | 220 | |
| Puncture strength | gf | 410 | 408 | 410 | 518 | |
| Tensile strength | MD | Kgf/cm² | 2918 | 2920 | 2274 | 2353 |
| TD | 2086 | 2102 | 2280 | 2393 | ||
| Peel strength | Side A | N/m | / | 71 | / | 92 |
| Side B | / | 89 | / | 110 | ||
| Thermal shrinkage rate 130°C1h | MD | % | / | 0.6 | / | 0.8 |
| TD | / | 0.7 | / | 0.6 | ||
| Thermal shrinkage rate 150℃1h | MD | % | / | 1.1 | / | 0.9 |
| TD | / | 1.2 | / | 0.7 | ||
| Thermal shrinkage rate 180℃1h | MD | % | / | 1.6 | / | 1.5 |
| TD | / | 1.1 | / | 1.1 |
| Breaking temperature | °C | <150 | >250 | <150 | >250 |
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