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

Si, Wenping; Mönch, Ingolf; Yan, Chenglin; Deng, Junwen; Li, Shilong; Lin, Gungun; Han, Luyang; Mei, Yongfeng et al. · Adv Mater · 2014

basic_science · Level V

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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.