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	Effect of silica nanoparticles/poly(vinylidene fluoride-hexafluoropropylene) coated layers on the performance of polypropylene separator for lithium-ion batteries
	Hongyu Liu ; Zehui Dai ; Jun Xu ; Baohua Guo ; Xiangming He ; Hongyu Liu ; Zehui Dai ; Jun Xu ; Baohua Guo ; Xiangming He
	2016-03-30 ; 2016-03-30
关键词	composite separator silica nanoparticles dip-coating thermal shrinkage cell performance TM912 O613.72
其他题名	Effect of silica nanoparticles/poly(vinylidene fluoride-hexafluoropropylene) coated layers on the performance of polypropylene separator for lithium-ion batteries
中文摘要	In an effort to reduce thermal shrinkage and improve electrochemical performance of porous polypropylene(PP) separators for lithium-ion batteries, a new composite separator is developed by introducing ceramic coated layers on both sides of PP separator through a dip-coating process. The coated layers are comprised of heat-resistant and hydrophilic silica nanoparticles and polyvinylidene fluoride-hexafluoropropylene(PVDF-HFP) binders. Highly porous honeycomb structure is formed and the thickness of the layer is only about 700 nm. In comparison to the pristine PP separator, the composite separator shows significant reduction in thermal shrinkage and improvement in liquid electrolyte uptake and ionic conduction, which play an important role in improving cell performance such as discharge capacity, C-rate capability, cycle performance and coulombic efficiency.; In an effort to reduce thermal shrinkage and improve electrochemical performance of porous polypropylene(PP) separators for lithium-ion batteries, a new composite separator is developed by introducing ceramic coated layers on both sides of PP separator through a dip-coating process. The coated layers are comprised of heat-resistant and hydrophilic silica nanoparticles and polyvinylidene fluoride-hexafluoropropylene(PVDF-HFP) binders. Highly porous honeycomb structure is formed and the thickness of the layer is only about 700 nm. In comparison to the pristine PP separator, the composite separator shows significant reduction in thermal shrinkage and improvement in liquid electrolyte uptake and ionic conduction, which play an important role in improving cell performance such as discharge capacity, C-rate capability, cycle performance and coulombic efficiency.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/144094]
专题	清华大学
推荐引用方式 GB/T 7714	Hongyu Liu,Zehui Dai,Jun Xu,et al. Effect of silica nanoparticles/poly(vinylidene fluoride-hexafluoropropylene) coated layers on the performance of polypropylene separator for lithium-ion batteries[J],2016, 2016.
APA	Hongyu Liu.,Zehui Dai.,Jun Xu.,Baohua Guo.,Xiangming He.,...&Xiangming He.(2016).Effect of silica nanoparticles/poly(vinylidene fluoride-hexafluoropropylene) coated layers on the performance of polypropylene separator for lithium-ion batteries..
MLA	Hongyu Liu,et al."Effect of silica nanoparticles/poly(vinylidene fluoride-hexafluoropropylene) coated layers on the performance of polypropylene separator for lithium-ion batteries".(2016).

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