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The long life-span of a Li-metal anode enabled by a protective layer based on the pyrolyzed N-doped binder network
Zhang, Zhenggang1,4,6; Peng, Zhe1; Zheng, Jieyun2; Wang, Susu1,3; Liu, Zixuan1; Bi, Yujing1; Chen, Yousi1,3; Wu, Gang5; Li, Hong2; Cui, Ping1; Wen, Zhaoyin4; Wang, Deyu1
2017
Source PublicationJournal of Materials Chemistry A
ISSN20507488
Volume5Issue:19Pages:9339-9349
AbstractAttempts to utilize lithium metal in secondary batteries are seriously restricted by its uncontrollable side reactions with the electrolyte solvent. Here we utilize a protective porous structure based on the pyrolyzed PAN binder to stabilize the electrolyte/lithium interface to prolong its working life. With the increase of pyrolysis temperatures, the treated PAN fibers possess two mutational points in mechanical properties located at ∼300 & ∼700 °C, and exhibit carbon-like characteristics at ∼400 °C and higher. Compared to the control electrode, the cyclic life-span of the treated electrodes can increase 1.8 times at the first mutational point, and surprisingly rise to 12 & 7 times for the samples pyrolyzed at 400 & 500 °C, then fall back to 1.6 times at the second mutational point. These results reveal that the stable operation of lithium plating/stripping could be provided by the internal interwoven SEI layer grown on the carbon-like binder network with appropriate rigidity. Among the investigated systems, the protective structure treated at 400 °C can stably operate for 350 cycles with an average coulombic efficiency as high as ∼98%, which is the best efficiency recorded for carbonate-based electrolytes to date. © The Royal Society of Chemistry 2017.
DOI10.1039/c7ta02144e
EI Accession Number20172803902669
EI KeywordsElectrolytes
EI Classification Number542.4 Lithium and Alloys - 702.1.1 Primary Batteries - 802.2 Chemical Reactions - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 913.1 Production Engineering
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Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25374
Collection中国科学院上海硅酸盐研究所
Affiliation1.Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo; 315201, China;
2.Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China;
3.National Engineering Laboratory for Carbon Fiber Preparation Technology, Ningbo; 315201, China;
4.CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai; 200050, China;
5.Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, 309 Furnas Hall, Buffalo; NY; 14260-4200, United States;
6.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Zhang, Zhenggang,Peng, Zhe,Zheng, Jieyun,et al. The long life-span of a Li-metal anode enabled by a protective layer based on the pyrolyzed N-doped binder network[J]. Journal of Materials Chemistry A,2017,5(19):9339-9349.
APA Zhang, Zhenggang.,Peng, Zhe.,Zheng, Jieyun.,Wang, Susu.,Liu, Zixuan.,...&Wang, Deyu.(2017).The long life-span of a Li-metal anode enabled by a protective layer based on the pyrolyzed N-doped binder network.Journal of Materials Chemistry A,5(19),9339-9349.
MLA Zhang, Zhenggang,et al."The long life-span of a Li-metal anode enabled by a protective layer based on the pyrolyzed N-doped binder network".Journal of Materials Chemistry A 5.19(2017):9339-9349.
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