期刊
FRONTIERS IN PHYSICS
卷 7, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fphy.2019.00179
关键词
anode; microbatteries; polymer electrolyte; Ti grid; TiO2 nanotubes
资金
- Region Sud
Self-organized Titanium dioxide (TiO2) nanotubes grown on Ti grid acting as anode for Li-ion microbatteries were prepared via an electrochemical anodization. By tuning the anodization time, the morphology and length of the nanotubes were investigated by scanning electron microscope. When the anodization time reached 1.5 h, the TiO(2)nts/Ti grid anode showed a well-defined nanotubes, which are stable, well-adherent 90 nm with a length of 1.9 +/- 0.1 mu m. Due to their high surface utilization, surface area, and material loading per unit area, TiO(2)nts/Ti grid anode using polymer electrolyte exhibited a high areal capacity of 376 mu Ah cm(-2) at C/10 rate and a stable discharge plateau at 1.8 V without using a polymer binder and conductive additive. The storage capacity of the TiO(2)nts/Ti grid after 10 cycles is 15 times higher compared to previous reports using planar Ti foils.
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