A single rolled-up Si tube battery for the study of electrochemical kinetics, electrical conductivity, and structural integrity

Wenping Si; Ingolf Mönch; Chenglin Yan; Junwen Deng; Shilong Li; Gungun Lin; Luyang Han; Yongfeng Mei; Oliver G Schmidt

doi:10.1002/adma.201402484

A single rolled-up Si tube battery for the study of electrochemical kinetics, electrical conductivity, and structural integrity

Adv Mater. 2014 Dec 17;26(47):7973-8. doi: 10.1002/adma.201402484. Epub 2014 Oct 22.

Authors

Wenping Si¹, Ingolf Mönch, Chenglin Yan, Junwen Deng, Shilong Li, Gungun Lin, Luyang Han, Yongfeng Mei, Oliver G Schmidt

Affiliation

¹ Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, Dresden, 01069, Germany; Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainerstraße 70, Chemnitz, 09107, Germany.

PMID: 25339523
DOI: 10.1002/adma.201402484

Abstract

A lab-on-chip device is demonstrated for probing the electrochemical kinetics, electrical properties, and structure integrity of a single Si rolled-up tube as the anode in lithium-ion batteries. Cyclic voltammetry of the tube exhibits better-resolved peaks than of the planar film due to the enhanced diffusion. The tube is wrinkled after cycling. The tube could be used as a promising ultra-microelectrode for other voltammetry research.

Keywords: Si tubes; electrochemical kinetics; lab-on-chip device; lithium-ion battery; wrinkled structure.