Polydopamine coated electrospun poly(vinyldiene fluoride) nanofibrous membrane as separator for lithium-ion batteries
Polydopamine coated electrospun poly(vinyldiene fluoride) nanofibrous membrane as separator for lithium-ion batteries
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DOI：
10.1016/j.jpowsour.2013.09.027
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发表时间：
2014-02-15
影响因子：
9.2
通讯作者：
Li, Lei
中科院分区：
文献类型：
--
作者：
Cao, Chengying;Tan, Lei;Li, Lei
在本研究中，聚多巴胺（FDA）涂层静电纺丝聚（氟乙烯）（PVDF）纳米纤维膜用于锂离子电池隔膜成功地制备。研究了它们的形貌、化学和电化学特性。膜的形貌和孔隙率的测量表明，PDA涂层不损害电纺PVDF纳米纤维膜的结构。由于PDA涂层，它使PVDF表面亲水，从而增加电解质吸收和离子电导率，从而提高电池的性能。使用PDA涂覆的PVDF纳米纤维隔膜的电池比使用裸PVDF纳米纤维隔膜的电池表现出更好的循环性能和更高的功率容量。本研究强调，PDA涂层处理提供了一个有前途的先进的电纺纳米纤维隔膜在锂离子电池应用的制造过程。(C)2013爱思唯尔有限公司版权所有。
In this study, polydopamine (FDA) coated electrospun poly(vinyldiene fluoride) (PVDF) nanofibrous membranes used as separator for lithium-ion batteries are successfully prepared. Their morphology, chemical and electrochemical characterization are investigated. The morphology and porosity measurements of the membranes show that the PDA coating does not harm to the structure of the electrospun PVDF nanofibrous membranes. Due to the PDA coating, it makes the PVDF surface hydrophilic and thus increases the electrolyte uptake and ionic conductivity, resulting in the enhanced performance of batteries. The battery using the PDA coated PVDF nanofibrous separator exhibits better cycling performance and higher power capability than that the battery using the bare PVDF nanofibrous separator. This study underlines that the PDA-coating treatment provides a promising process for the fabrication of advanced electrospun nanofibers separator in the lithium-ion battery applications. (C) 2013 Elsevier B.V. All rights reserved.