Mines Saint-Etienne, Center of Microelectronics in Provence, Department of Flexible Electronics, F-13541 Gardanne, France.
CNRS, Electrochemistry of Materials Research Group, Aix Marseille Université, MADIREL, UMR 7246, CEDEX 20, F-13397 Marseille, France.
Molecules. 2020 May 1;25(9):2121. doi: 10.3390/molecules25092121.
All-solid-state batteries were fabricated by assembling a layer of self-organized TiO nanotubes grown on as anode, a thin-film of polymer as an electrolyte and separator, and a layer of composite LiFePO as a cathode. The synthesis of self-organized TiO 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 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 μm (119 mAh g) at a kinetic rate of C/10.
全固态电池是通过组装一层自组织的 TiO 纳米管作为阳极、一层聚合物薄膜作为电解质和隔膜，以及一层复合 LiFePO 作为阴极来制备的。Ti-6Al-4V 合金的自组织 TiO NTs 通过一步在含氟乙二醇的电化学阳极氧化合成。聚合物电解质通过循环伏安法电沉积到锐钛矿 TiO NTs 上。阳极氧化的 Ti-6Al-4V 合金通过扫描电子显微镜和 X 射线衍射进行表征。通过循环伏安法和恒电流技术研究了阳极氧化的 Ti-6Al-4V 合金的电化学性能。全电池在第一圈具有 96.8%的高库仑效率，经过 50 次循环后容量保持率为 97.4%，在动力学速率 C/10 下可稳定释放 63 μAh cm μm（119 mAh g）的容量。
