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A rGO-CNT aerogel covalently bonded with a nitrogen-rich polymer as a polysulfide adsorptive cathode for high sulfur loading lithium sulfur batteries
2017-07-28
发表期刊JOURNAL OF MATERIALS CHEMISTRY A (IF:10.7[JCR-2023],10.8[5-Year])
ISSN2050-7488
卷号5期号:28页码:14775-14782
发表状态已发表
DOI10.1039/c7ta03552g
摘要The development of high capacity lithium-sulfur (Li-S) batteries is hampered by both the shuttle effect of polysulfides and low sulfur areal loading problems. To inhibit the shuttle effect, a polysulfide adsorptive polymer polyethylenimine (PEI) is covalently bonded with reduced graphene oxide (rGO) in a one-step hydrothermal reaction. Meanwhile, multi-walled carbon nanotubes (MWCNTs) are simultaneously interweaved with rGO. The resultant PEI-rGO-MWCNT aerogel (PEI-GC) provides ample chemisorption domains of amine groups and abundant electrical contact sites. Density functional theory (DFT) calculations prove a binding energy of 2.43 eV between PEI and polysulfide. The PEI-GC cell achieved a high capacity of 933 mA h g(-1) for the 500th cycle at 1C, stable rate performance up to 10C, and low self-discharge rate. The covalent bond between PEI and rGO experiences no degradation during the 500 cycles. Moreover, PEI-GC achieved excellent cycling performance at a high sulfur loading of up to 18 mg cm(-2).
收录类别SCI ; EI
语种英语
资助项目Key Fundamental Project from Science and Technology Commission of Shanghai Municipality[15DZ2281200]
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
WOS类目Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号WOS:000405689000033
出版者ROYAL SOC CHEMISTRY
EI入藏号20173003969259
EI主题词Aerogels ; Binding energy ; Carbon ; Carbon nanotubes ; Density functional theory ; Electric batteries ; Graphene ; Lithium ; Lithium batteries ; Lithium sulfur batteries ; Multiwalled carbon nanotubes (MWCN) ; Polysulfides ; Secondary batteries ; Sulfur ; Yarn
EI分类号Lithium and Alloys:542.4 ; Materials Handling Methods:691.2 ; Electric Batteries and Fuel Cells:702 ; Nanotechnology:761 ; Colloid Chemistry:801.3 ; Physical Chemistry:801.4 ; Chemical Products Generally:804 ; Organic Polymers:815.1.1 ; Fiber Products:819.4 ; Probability Theory:922.1
WOS关键词LI-S BATTERIES ; GRAPHENE OXIDE ; CARBON NANOTUBES ; DOPED GRAPHENE ; GENE DELIVERY ; CYCLE-LIFE ; LONG-LIFE ; PERFORMANCE ; SURFACE ; DESIGN
原始文献类型Article
通讯作者Wen, Zhaoyin
引用统计
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2821
专题物质科学与技术学院_特聘教授组_温兆银组
通讯作者Wen, Zhaoyin
作者单位
1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Shanghaitech Univ, Shanghai 200031, Peoples R China
4.Univ Sci & Technol China, Hefei 230026, Peoples R China
通讯作者单位上海科技大学
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GB/T 7714
Hong, Xiaoheng,Jin, Jun,Wu, Tian,et al. A rGO-CNT aerogel covalently bonded with a nitrogen-rich polymer as a polysulfide adsorptive cathode for high sulfur loading lithium sulfur batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(28):14775-14782.
APA Hong, Xiaoheng.,Jin, Jun.,Wu, Tian.,Lu, Yang.,Zhang, Sanpei.,...&Wen, Zhaoyin.(2017).A rGO-CNT aerogel covalently bonded with a nitrogen-rich polymer as a polysulfide adsorptive cathode for high sulfur loading lithium sulfur batteries.JOURNAL OF MATERIALS CHEMISTRY A,5(28),14775-14782.
MLA Hong, Xiaoheng,et al."A rGO-CNT aerogel covalently bonded with a nitrogen-rich polymer as a polysulfide adsorptive cathode for high sulfur loading lithium sulfur batteries".JOURNAL OF MATERIALS CHEMISTRY A 5.28(2017):14775-14782.
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