Hierarchical NiCoO2mesoporous microspheres as anode for lithium ion batteries with superior rate capability

Zhen Dong Huang, Kun Zhang, Ting Ting Zhang, Xusheng Yang, Rui Qing Liu, Yi Li, Xiu Jing Lin, Xiao Miao Feng, Yan Wen Ma, Wei Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)

Abstract

Nanostructured materials with small particle size and large surface area exhibit excellent rate capability, however, their cyclic performances are normally limited by the intemperate side reaction with electrolyte, which is resulted from the large contact surface area of nanosized active particles with electrolyte. To avoid this issue, a relatively denser NiCoO2(NCO) hierarchical microspheres built by mesoporous thorn array are developed by pyrolyzing the agave-stricta-like NiCo(OH)2CO3thorn microspheres under nitrogen gas in this work. The analysed experimental results suggest that the hierarchical mesoporous nanostructure constructed by interconnected nanoparticles with a proper size (neither too small nor to large) shows a favorable BET specific surface area to well balance the rate and cyclic performance of transition metal oxide anodes. Compared to reported similar works, the as-prepared hierarchical NCO mesoporous microspheres deliver superior rate capability and greatly promoted cyclic stability, i.e. 844.6, 627.9 and 396.6 mA h g-1at 80, 1600 and 4000 mA g-1, respectively.
Original languageEnglish
Pages (from-to)36-44
Number of pages9
JournalEnergy Storage Materials
Volume3
DOIs
Publication statusPublished - 1 Apr 2016

Keywords

  • Anode materials
  • Hierarchical microsphere
  • Lithium ion batteries
  • Nickel cobalt oxides

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Energy Engineering and Power Technology

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