Abstract Good wettability of separators in batteries and capacitors is crucial for performance. Titanium hydroxide (Ti(OH)x) has been shown to greatly improve the wettability of polyvinylidene fluoride (PVDF) nanofibers (NFs). In this work, PVDF/Ti(OH)x NFs were evaluated for their potential use as separators. Results show that PVDF NFs incorporated with Ti(OH)x have improved electrolyte uptake (EU) between 550-1200 EU% compared to untreated PVDF with less than 100 EU%. Significant improvements in capacitance are seen from capacitors utilizing PVDF/Ti(OH)x NF separators with the best performing PVDF/Ti(OH)x NF at 15 wt% Ti(OH)x and 446.8 mF/cm2 compared to untreated PVDF NF separator with 262.7 mF/cm2.

中文翻译：

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均质氢氧化钛产生羟基修饰的纳米纤维隔膜，具有改善的电解质吸收和器件电容

摘要 电池和电容器中隔膜的良好润湿性对性能至关重要。氢氧化钛 (Ti(OH)x) 已被证明可以大大提高聚偏二氟乙烯 (PVDF) 纳米纤维 (NF) 的润湿性。在这项工作中，评估了 PVDF/Ti(OH)x NFs 作为隔膜的潜在用途。结果表明，与低于 100 EU% 的未经处理的 PVDF 相比，与 Ti(OH)x 结合的 PVDF NF 提高了 550-1200 EU% 的电解质吸收率 (EU)。与未处理的 PVDF NF 隔膜相比，使用 PVDF/Ti(OH)x NF 隔膜的电容器具有显着的电容改善，其中 PVDF/Ti(OH)x NF 性能最佳，Ti(OH)x 为 15 wt%，446.8 mF/cm2 262.7 mF/cm2。