摘要:
The invention relates to a separator film for a device used for storing electrical energy, the film being porous and oriented, and being obtained by stretching in a longitudinal direction and in a direction transverse to the longitudinal direction, the film containing a mixture comprising a polypropylene homopolymer, at least 10% of a copolymer obtained from monomers comprising at least propylene and ethylene, and at least one beta-nucleating agent. According to the invention, the ethylene content of the copolymer is ≧1% but
摘要翻译:本发明涉及一种用于存储电能的装置的隔膜,该膜是多孔的并定向的,并且通过沿纵向方向和横向于纵向的方向拉伸获得,该膜含有包含聚丙烯 均聚物,至少10%由至少含有丙烯和乙烯的单体和至少一种β-成核剂得到的共聚物。 根据本发明,对于≥8微米和≤30微米的膜厚度,共聚物的乙烯含量为≥1%但<10%,共聚物的丙烯含量为≥90%,对应于根据 大于等于145%的IEC-60674-3-1标准,双轴拉伸膜的密度大于或等于0.18g / cm 3,但小于或等于0.41g / cm 3。
摘要:
The invention relates to a separator film for a device used for storing electrical energy, the film being porous and oriented, and being obtained by stretching in a longitudinal direction and in a direction transverse to the longitudinal direction, the film containing a mixture comprising a polypropylene homopolymer, at least 10% of a copolymer obtained from monomers comprising at least propylene and ethylene, and at least one beta-nucleating agent. According to the invention, the ethylene content of the copolymer is ≧1% but
摘要翻译:本发明涉及一种用于存储电能的装置的隔膜,该膜是多孔的并定向的,并且通过沿纵向方向和横向于纵向的方向拉伸获得,该膜含有包含聚丙烯 均聚物,至少10%由至少含有丙烯和乙烯的单体和至少一种β-成核剂得到的共聚物。 根据本发明,相对于规定的空间因子,共聚物的乙烯含量为≥8%且≥10微米的膜厚为≥10%,共聚物的丙烯含量为≥90% 根据IEC-60674-3-1标准大于或等于145%,双轴拉伸膜的密度大于或等于0.18g / cm 3,但小于或等于0.41g / cm 3。