Combining galvanic displacement and in situ polymerization in a new synthesis: micro-composite materials for Li-based batteries

P. Sánchez-Fontecoba, J. M. López Del Amo, N. Fernández, S. Pérez-Villar, T. Rojo, C. M. López

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Composite electrode materials offer some of the best electrochemical performances available for Li-based batteries. However, the development of economical and scalable synthetic methods for their production remains a significant challenge, especially for submicron and nano-sized composites. In this work, we demonstrate a novel synthetic method which combines galvanic displacement and cationic polymerization in a one-pot synthesis. The materials obtained are Sn-based organic-inorganic micro-composites whose morphology and chemical composition can be altered by changing a few key synthetic parameters. Extensive characterization of the materials by micro-analytical and bulk methods (SEM-SE, SEM-BSE, SEM-EDS, XRD, ATR-FTIR, TGA-DSC, ICP, and SSNMR), revealed the presence of crystalline phases of Sn, of Li-containing Sn-alloys, other crystalline inorganic phases, and carbonate-based polymer. Preliminary electrochemical evaluation revealed that the Sn-containing micro-composite shows better stability than commercial micro-crystalline Sn when cycled in a lithium half-cell.

Original languageEnglish
Pages (from-to)18868-18877
Number of pages10
JournalJournal of Materials Chemistry A
Volume4
Issue number48
DOIs
Publication statusPublished - 2016

    Fingerprint

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this