Hollow mesoporous silica sphere-embedded composite separator for high-performance lithium-ion battery | |
Xiao, W; Wang, JJ; Wang, H; Gong, YQ; Zhao, LN; Liu, JG; Yan, CW; Xiao, W (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China. | |
2016-10-01 | |
Source Publication | JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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ISSN | 1432-8488 |
Volume | 20Issue:10Pages:2847-2855 |
Abstract | A high-performance composite separator based on hollow mesoporous silica spheres, poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP), and poly(ethylene terephthalate) nonwoven was explored as lithium-ion battery separator via a dip coating technique followed by a phase separation wet process. Systematical investigations including morphology characterization, porosity measurement, electrolyte wettability, thermal shrinkage testing, and cell performance examination are carried out. It is demonstrated that the unique mesoporous structures of silica spheres endow the composite separator with well-defined microporous structure. Owing to the preferable microstructure and relatively polar constituents, the composite separator exhibits higher porosity, superior electrolyte wettability, and outstanding thermal stability. Based on the above advantages, the composite separator shows better electrochemical performances, such as the discharge C-rate capability and cycling performance, as compared to the commercialized PE separator. This research presents a simple approach to prepare high-performance separator, which is demonstrated to be a good candidate for lithium-ion batteries. |
description.department | [xiao, wei ; wang, hong ; gong, yaqun ; zhao, lina ; liu, jianguo ; yan, chuanwei] chinese acad sci, inst met res, lab corros & protect, shenyang 110016, peoples r china ; [wang, jingjing] shandong univ sci & technol, coll chem & environm engn, qingdao 266590, shandong, peoples r china |
Keyword | Lithium-ion Battery Composite Separator Hollow Silica Sphere Phase Separation Electrolyte Wettability Thermal Stability |
Subject Area | Electrochemistry |
Funding Organization | National Science Foundation of China [21306213] |
Indexed By | sci |
Language | 英语 |
WOS ID | WOS:000383771700025 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.imr.ac.cn/handle/321006/76255 |
Collection | 中国科学院金属研究所 |
Corresponding Author | Xiao, W (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China. |
Recommended Citation GB/T 7714 | Xiao, W,Wang, JJ,Wang, H,et al. Hollow mesoporous silica sphere-embedded composite separator for high-performance lithium-ion battery[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2016,20(10):2847-2855. |
APA | Xiao, W.,Wang, JJ.,Wang, H.,Gong, YQ.,Zhao, LN.,...&Xiao, W .(2016).Hollow mesoporous silica sphere-embedded composite separator for high-performance lithium-ion battery.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,20(10),2847-2855. |
MLA | Xiao, W,et al."Hollow mesoporous silica sphere-embedded composite separator for high-performance lithium-ion battery".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 20.10(2016):2847-2855. |
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