Synthesis of tin-encapsulated spherical hollow carbon for anode material in lithium secondary batteries

Kyu T. Lee, Yoon S. Jung, Seung M. Oh

Research output: Contribution to journalArticle

639 Citations (Scopus)

Abstract

The tributylphenyltin (TBPT)-encapsulated resorcinol (R)-formaldehyde (F) sol was prepared inside the micelles of cetyltrimethylammonium bromide (CTAB). This core-shell-type sol was polymerized and further carbonized to obtain nanosized Sn-encapsulated spherical hollow carbon. The size of spherical hollow carbon and Sn metal particles was controllable by changing the R/CTAB or TBPT/CTAB mole ratio, respectively. It is likely that, when tested as the anode in Li secondary batteries, the spherical hollow carbon acts as a barrier to prevent the aggregation of nanosized Sn particles and provides a void space for Sn metal particles to experience a volume change without a collapse of carbon shell, giving rise to a better cycle performance than that of pure Sn metal.

Original languageEnglish
Pages (from-to)5652-5653
Number of pages2
JournalJournal of the American Chemical Society
Volume125
Issue number19
DOIs
Publication statusPublished - 2003 May 14

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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