PA/n-PPS隔膜的制备及其在水系电池中的性能  

Preparation of PA/n-PPS separator and its performance in water battery

作　　者：张马亮[1,2] 谭策 程博闻[1,2] 李振环[1,2] ZHANG Ma-liang;TAN Ce;CHENG Bo-wen;LI Zhen-huan(School of Material Science and Engineering,Tiangong University,Tianjin 300387,China;State Key Laboratory of Separation Membranes and Membrane Processes,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学材料科学与工程学院,天津300387 [2]天津工业大学省部共建分离膜与膜过程国家重点实验室,天津300387

出　　处：《天津工业大学学报》2022年第3期15-19,共5页Journal of Tiangong University

基　　金：国家自然科学基金资助项目(51873152,51603145)。

摘　　要：为构建高性能水系电池隔膜,通过聚酰胺(PA)膜溶液涂覆修饰聚苯硫醚(PPS)超细纤维膜的方式制备了PA/n-PPS微纳米复合纤维隔膜,并研究了PA/n-PPS隔膜的形貌结构对隔膜性能的影响。结果表明:当PA的质量分数为11%时,PA/n-PPS隔膜的孔隙率最大并且膜孔结构均匀,电化学性能最佳,其保液率达到548.41%,离子电导率为3.12×10^(-2) mS/cm;在0.2 C倍率条件下,隔膜组装的电池初始放电比容量为340 mA·h/g,并且经过100次循环,放电比容几乎无波动,放电效率接近100%,表现出极佳的循环稳定性。In order to build High-performance water battery,the polyamide(PA)/n-polyphenylene sulfide(PPS)micro nano composite fiber membrane was prepared by the method of PA membrane solution modified PPS microfiber film,and the effect of the morphology and structure of PA/n-PPS diaphragm on the performance was revealed.The results show that,when the mass fraction of PA dipping solution is 11%,the separator reach the optimum property because of high porosity and uniform pore structure.,which liquid retention rate and its ionic conductivity reach 548.41%and 3.12×10^(-2) mS/cm,respectively.At 0.2 C rate,the initial discharge capacity of the separator is 340 mA·h/g.After 100 cycles,the discharge capacity fluctuation is small,and the discharge efficiency is close to 100%,showing good cycle stability.

关 键 词：聚苯硫醚(PPS) 超细纤维膜 聚酰胺(PA) 电池隔膜 水系电池 

分 类 号：TQ152[化学工程—电化学工业] TB332[一般工业技术—材料科学与工程]