Synthesis of ultrathin hollow carbon shell from petroleum asphalt for high-performance anode material in lithium-ion batteries

Peng Li, Jingyan Liu, Yuwei Wang, Yang Liu, Xiuna Wang, Kyung Wan Nam, Yong Mook Kang, Mingbo Wu, Jieshan Qiu

Research output: Contribution to journalArticlepeer-review

99 Scopus citations

Abstract

Petroleum asphalt based ultrathin hollow carbon shell (PACS) was prepared via a facile template-assisted method. As the anode material of lithium-ion batteries, PACS exhibits high reversible capacity, excellent cycling stability, and superior rate performance. A high reversible capacity of 334mAhg-1 and 90% kept of the theoretical capacity can still be maintained in PACS at a current density of 1Ag-1 even after 1000 cycles, which is ascribed to the unique hollow structure, ultrathin porous shells (4.7nm), the doped nitrogen atoms, and high level of disorder degree. Meanwhile, the present study paves a milestone for the high-valued utilization of petroleum asphalt and other kinds of heavy oil.

Original languageEnglish
Pages (from-to)632-639
Number of pages8
JournalChemical Engineering Journal
Volume286
DOIs
StatePublished - 15 Feb 2016

Keywords

  • Carbon materials
  • Carbon shell
  • Energy storage and conversion
  • Lithium-ion battery
  • Petroleum asphalt

Fingerprint

Dive into the research topics of 'Synthesis of ultrathin hollow carbon shell from petroleum asphalt for high-performance anode material in lithium-ion batteries'. Together they form a unique fingerprint.

Cite this