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All-Solid-State Lithium Ion Batteries Using Self-Organized TiO2 Nanotubes Grown from Ti-6Al-4V Alloy

Abstract : All-solid-state batteries were fabricated by assembling a layer of self-organized TiO 2 nanotubes grown on as anode, a thin-film of polymer as an electrolyte and separator, and a layer of composite LiFePO 4 as a cathode. The synthesis of self-organized TiO 2 NTs from Ti-6Al-4V alloy was carried out via one-step electrochemical anodization in a fluoride ethylene glycol containing electrolytes. The electrodeposition of the polymer electrolyte onto anatase TiO 2 NTs was performed by cyclic voltammetry. The anodized Ti-6Al-4V alloys were characterized by scanning electron microscopy and X-ray diffraction. The electrochemical properties of the anodized Ti-6Al-4V alloys were investigated by cyclic voltammetry and chronopotentiometry techniques. The full-cell shows a high first-cycle Coulombic efficiency of 96.8% with a capacity retention of 97.4% after 50 cycles and delivers a stable discharge capacity of 63 µAh cm −2 µm −1 (119 mAh g −1) at a kinetic rate of C/10.
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Contributor : Florence Vacandio <>
Submitted on : Friday, April 2, 2021 - 10:27:01 AM
Last modification on : Sunday, April 4, 2021 - 3:04:36 AM

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Vinsensia Sugiawati, Florence Vacandio, Thierry Djenizian. All-Solid-State Lithium Ion Batteries Using Self-Organized TiO2 Nanotubes Grown from Ti-6Al-4V Alloy. Molecules, MDPI, 2020, 25 (9), pp.2121. ⟨10.3390/molecules25092121⟩. ⟨hal-03186634⟩

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