为改善聚烯烃微孔膜的耐热安全性,研究了用于锂离子电池的陶瓷聚烯烃复合隔膜ZrO2/SiO2/PP(聚丙烯).复合膜具有高度多孔性和良好液体电解液湿润性.由于高的毛细吸附作用,通过吸附液态电解液,膜很易传导锂离子.膜中ZrO2/SiO2的两性特征,将电解液中的酸性HF(氟化氢)消耗掉,而HF作为现在锂离子电池所用电解液中的杂质是不可避免的.复合膜作为隔膜制备的碳/正极材料锂离子电池不仅具有优良的容量保持性、高温安全性,也显示良好的倍率放电性.
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