Ordered porous structure of nitrogen-self-doped carbon supporting Co3O4 nanoparticles as anode for improving cycle stability in lithium-ion batteries

Lei Liu, Quanling Yang, Ming Jiang, Shan Wang, Bin Liu, Dong Fang, Jing Huang, Qing Wang, Lijie Dong, Chuanxi Xiong

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A facile synthesis procedure of nitrogen-self-doped porous carbon (NPC) derived from abundant natural biological materials has been presented. The pyrolysis temperature and the weight ratio of Co3O4 to carbon play a key role in determining microscopic structure and electrochemical performances of the final materials. The ordered mesostructures with nanopores in the channel walls provided support for immobilization of well-dispersed Co3O4 nanoparticles. They also served as a highly conductive substrate for effectively alleviating severe particle aggregation during the charge/discharge processes, which prevented capacity fading from deteriorated electric contact between the components. Taking advantage of the interconnected porous structures and high specific surface area (1799 m2/g) of carbon substrate, the Co3O4/NPC composite as anode in lithium-ion battery delivers a stable reversible capacity of 903 mA h/g after 400 cycles. It is expected that by loading other electrode active materials on such carbon material, the manufacture of the promising anode materials with excellent cycle stability is highly possible.

Original languageEnglish (US)
Pages (from-to)1226-1235
Number of pages10
JournalJournal of Materials Research
Volume33
Issue number9
DOIs
StatePublished - May 14 2018

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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