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Nanostructured Carbon Nitride Polymer-Reinforced Electrolyte to Enable Dendrite-Suppressed Lithium Metal Batteries
Hu, Jiulin1,2; Tian, Jing1,2; Li, Chilin1
2017
发表期刊ACS Applied Materials and Interfaces
ISSN19448244
卷号9期号:13页码:11615-11625
摘要Lithium metal batteries (LMBs) containing S, O2, and fluoride cathodes are attracting increasing attention owing to their much higher energy density than that of Li-ion batteries. However, current limitation for the progress of LMBs mainly comes from the uncontrolled formation and growth of Li dendrites at the anode side. In order to suppress dendrite growth, exploring novel nanostructured electrolyte of high modulus without degradation of Li-electrolyte interface appears to be a potential solution. Here we propose a lightweight polymer-reinforced electrolyte based on graphitic carbon nitride (g-C3N4) mesoporous microspheres as electrolyte filler [bis(trifluoromethanesulfonimide) lithium salt/di(ethylene glycol) dimethyl ether mixed with g-C3N4, denoted as LiTFSI-DGM-C3N4] for the first time. This nanostructured electrolyte can effectively suppress lithium dendrite growth during cycling, benefiting from the high mechanical strength and nanosheet-built hierarchical structure of g-C3N4. The Li/Li symmetrical cell based on this slurrylike electrolyte enables long-term cycling of at least 120 cycles with a high capacity of 6 mA·h/cm2and small plating/stripping overpotential of 100 mV at a high current density of 2 mA/cm2. g-C3N4filling also enables a separator(Celgard)-free Li/FeS2cell with at least 400 cycles. The 3D geometry of g-C3N4shows advantages on interfacial resistance and Li plating/stripping stability compared to its 2D geometry. © 2017 American Chemical Society.
DOI10.1021/acsami.7b00478
EI入藏号20171503553896
EI主题词Polyelectrolytes
EI分类号804.1 Organic Compounds - 804.2 Inorganic Compounds - 815.1.1 Organic Polymers - 951 Materials Science
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25812
专题中国科学院上海硅酸盐研究所
作者单位1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100039, China
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GB/T 7714
Hu, Jiulin,Tian, Jing,Li, Chilin. Nanostructured Carbon Nitride Polymer-Reinforced Electrolyte to Enable Dendrite-Suppressed Lithium Metal Batteries[J]. ACS Applied Materials and Interfaces,2017,9(13):11615-11625.
APA Hu, Jiulin,Tian, Jing,&Li, Chilin.(2017).Nanostructured Carbon Nitride Polymer-Reinforced Electrolyte to Enable Dendrite-Suppressed Lithium Metal Batteries.ACS Applied Materials and Interfaces,9(13),11615-11625.
MLA Hu, Jiulin,et al."Nanostructured Carbon Nitride Polymer-Reinforced Electrolyte to Enable Dendrite-Suppressed Lithium Metal Batteries".ACS Applied Materials and Interfaces 9.13(2017):11615-11625.
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