Colloidal-crystal-templated synthesis of ordered macroporous electrode materials for lithium secondary batteries

Hongwei Yan, Sergey Sokolov, Justin C. Lytle, Andreas Stein, Fan Zhang, William H Smyrl

Research output: Contribution to journalArticlepeer-review

104 Scopus citations

Abstract

This paper presents a general method of preparing three-dimensionally ordered macroporous (3DOM) electrode materials, including both cathode materials (V2O5 and LiNiO2) and an anode material (SnO2). The method is based on templated precipitation of inorganic precursors within a colloidal crystal of poly(methyl methacrylate) spheres and subsequent chemical conversion. 3DOM electrodes possess several features of interest in the design of novel battery materials, such as high accessible surface areas, continuous networks, and structural features on the nanometer scale. Optimal synthesis conditions and structural features of 3DOM electrode materials are described on the basis of X-ray diffraction, scanning electron microscopy, nitrogen adsorption, and chemical analysis.

Original languageEnglish (US)
Pages (from-to)A1102-A1107
JournalJournal of the Electrochemical Society
Volume150
Issue number8
DOIs
StatePublished - Aug 2003

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