On the dispersion of lithium-sulfur battery cathode materials effected by electrostatic and stereo-chemical factors of binders

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 能量转换材料重点实验室 > 期刊论文

	On the dispersion of lithium-sulfur battery cathode materials effected by electrostatic and stereo-chemical factors of binders
	Hong, Xiaoheng 1,2; Jin, Jun 1; Wen, Zhaoyin 1,2; Zhang, Sanpei 1; Wang, Qingsong 1; Shen, Chen 1; Rui, Kun 1
刊名	JOURNAL OF POWER SOURCES
	2016-08-30
卷号	324 页码:455-461
关键词	Lithium-sulfur battery Binder Dispersion mechanism Sulfur cathode Cathode morphology
英文摘要	Sodium carboxymethyl cellulose-styrene butadiene rubber (CMC-SBR), sodium alginate (SA) and LA132 are utilized as the polymer binders for the cathodes of Li-S batteries to study their dispersion mechanism on the cathode materials and the consequent influence on the performance of Li-S batteries. Zeta potential tests, differential scanning calorimetry analysis and calculations of the rotational barriers of the links of the polymer chains by General Atomic and Molecular Electronic Structure System (GAMESS) reveal that higher charge densities and better chain flexibility of the binders promise the dispersion of the downsized cathode materials. LA132 is found to have optimal characteristic for dispersing and stabilizing the cathode materials in aqueous environment. The cycling performance and SEM images of the cathodes demonstrate that cathodes with higher dispersion degree achieve higher discharge capacities. The electrochemical impedance spectroscopy (EIS) results further support that better dispersed cathodes have lower impedance resulting from their well established conducting frameworks. (C) 2016 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	WALLED CARBON NANOTUBES ; WATER-SOLUBLE BINDER ; LI-ION BATTERIES ; ELECTROCHEMICAL PERFORMANCE ; ENHANCED CYCLABILITY ; NEGATIVE ELECTRODES ; CAPACITY ; ALGINATE ; SOLVENT ; PARTICLES
收录类别	SCI
语种	英语
WOS记录号	WOS:000380076700053
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/22926]
专题	上海硅酸盐研究所_能量转换材料重点实验室_期刊论文
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China 2.Shanghaitech Univ, Shanghai 200031, Peoples R China
推荐引用方式 GB/T 7714	Hong, Xiaoheng,Jin, Jun,Wen, Zhaoyin,et al. On the dispersion of lithium-sulfur battery cathode materials effected by electrostatic and stereo-chemical factors of binders[J]. JOURNAL OF POWER SOURCES,2016,324:455-461.
APA	Hong, Xiaoheng.,Jin, Jun.,Wen, Zhaoyin.,Zhang, Sanpei.,Wang, Qingsong.,...&Rui, Kun.(2016).On the dispersion of lithium-sulfur battery cathode materials effected by electrostatic and stereo-chemical factors of binders.JOURNAL OF POWER SOURCES,324,455-461.
MLA	Hong, Xiaoheng,et al."On the dispersion of lithium-sulfur battery cathode materials effected by electrostatic and stereo-chemical factors of binders".JOURNAL OF POWER SOURCES 324(2016):455-461.