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作者:

Tan, Guoqiang (Tan, Guoqiang.) | Bao, Wurigumula (Bao, Wurigumula.) | Yuan, Yifei (Yuan, Yifei.) | Liu, Zhun (Liu, Zhun.) | Shahbazian-Yassar, Reza (Shahbazian-Yassar, Reza.) | Wu, Feng (Wu, Feng.) | Amine, Khalil (Amine, Khalil.) | Wang, Jing (Wang, Jing.) | Lu, Jun (Lu, Jun.)

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EI Scopus SCIE

摘要:

To transform lithium ion batteries into large-scale energy storage technologies, high energy/power densities and long cycling life of carbon-based anodes must be achieved. This requires revolutionary design of the anode's architecture that can facilitate fast electronic and ionic transport, and accommodate the electrode structural instability. Here we report a thin-film electrode design and demonstrate its use in flexible, and large-area carbon-based anode assemblies. The fabrication of electrodes is realized by sputtering a graphite target in the high-purity nitrogen atmosphere, then highly defect nitrogen-doped carbon nanofibers are deposited vertically onto copper substrates with a thin film configuration. The high-defect nitrogen-doping enhances the lithium storage and transport, the orientation growth mechanism improves the charge transfer, and the compact configuration makes high tap density possible. As a result, the thin films exhibit a high specific capacity of similar to 500 mA h g(-1), namely a volume capacity of similar to 100 mA h cm(-3). They also exhibit stable cycle performance (400 mA h g(-1) after 200 cycles) and good rate capability (450 mA h g(-1) at 1 A g(-1) rate). This work opens up a new carbonbased anode design by using sputtering technology for effectively incorporating high content nitrogen into carbon matrices. Such electrode architecture significantly improves the electrochemical performance of carbon-based materials.

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作者机构:

  • [ 1 ] [Tan, Guoqiang]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China
  • [ 2 ] [Bao, Wurigumula]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China
  • [ 3 ] [Wu, Feng]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China
  • [ 4 ] [Wang, Jing]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China
  • [ 5 ] [Tan, Guoqiang]Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Lemont, IL 60439 USA
  • [ 6 ] [Yuan, Yifei]Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Lemont, IL 60439 USA
  • [ 7 ] [Amine, Khalil]Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Lemont, IL 60439 USA
  • [ 8 ] [Lu, Jun]Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Lemont, IL 60439 USA
  • [ 9 ] [Yuan, Yifei]Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA
  • [ 10 ] [Shahbazian-Yassar, Reza]Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA
  • [ 11 ] [Liu, Zhun]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 12 ] [Wu, Feng]Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing 100081, Peoples R China
  • [ 13 ] [Wang, Jing]Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing 100081, Peoples R China
  • [ 14 ] [Wu, Feng]Natl Dev Ctr High Technol Green Mat, Beijing 100081, Peoples R China
  • [ 15 ] [Wang, Jing]Natl Dev Ctr High Technol Green Mat, Beijing 100081, Peoples R China

通讯作者信息:

  • [Wang, Jing]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China;;[Lu, Jun]Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Lemont, IL 60439 USA;;[Wang, Jing]Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing 100081, Peoples R China;;[Wang, Jing]Natl Dev Ctr High Technol Green Mat, Beijing 100081, Peoples R China

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来源 :

JOURNAL OF MATERIALS CHEMISTRY A

ISSN: 2050-7488

年份: 2017

期: 11

卷: 5

页码: 5532-5540

1 1 . 9 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:169

中科院分区:1

被引次数:

WoS核心集被引频次: 31

SCOPUS被引频次:

ESI高被引论文在榜: 0 展开所有

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