引用本文:
周永宁, 吴长亮, 张华, 吴晓京, 傅正文. LiF-Ni纳米复合薄膜的电化学性能研究[J]. 物理化学学报,
2006, 22(09): 1111-1115.
doi:
10.1016/S1872-1508(06)60051-X
Citation: ZHOU Yong-Ning, WU Chang-Liang, ZHANG Hua, WU Xiao-Jing, FU Zheng-Wen. The Electrochemical Properties of LiF-Ni Nanocomposite Thin Film[J]. Acta Physico-Chimica Sinica, 2006, 22(09): 1111-1115. doi: 10.1016/S1872-1508(06)60051-X
Citation: ZHOU Yong-Ning, WU Chang-Liang, ZHANG Hua, WU Xiao-Jing, FU Zheng-Wen. The Electrochemical Properties of LiF-Ni Nanocomposite Thin Film[J]. Acta Physico-Chimica Sinica, 2006, 22(09): 1111-1115. doi: 10.1016/S1872-1508(06)60051-X
LiF-Ni纳米复合薄膜的电化学性能研究
摘要:
采用脉冲激光沉积法在不锈钢基片上制备了LiF-Ni纳米复合薄膜, 用充放电和循环伏安实验测量了该薄膜的电化学性能. 首次充电容量为107 mAh•g−1, 它对应第一次释放锂的过程. 在充放电循环过程中, 锂的嵌入、脱出通过非原位高分辨电子显微和选区电子衍射得到证实. 这一结果为LiF可以由过渡金属Ni驱动分解提供了直接的实验证据.
English
The Electrochemical Properties of LiF-Ni Nanocomposite Thin Film
Abstract:
Nanocomposite of LiF-Ni with a highly heterogeneous mixture was fabricated using pulsed laser deposition (PLD) method, and it exhibited remarkable electrochemical activity. The electrochemical reaction of LiF-Ni nanocomposite thin-film electrode with Li was firstly investigated by the discharge/charge and cyclic voltammetry. The initial charge capacity of the LiF-Ni/Li cell was found to be 107 mAh•g−1. The process of releasing Li from the as-deposited LiF-Ni nanocomposite thin films was confirmed by ex-situ high-resolution transmission electron microscopy and by the selected area electron diffraction measurements. These results provided a direct experimental evidence to support the electrochemical decomposition of LiF driven by the transition metal Ni in the potential range from 1.0 V to 4.0 V. LiF-Ni nanocomposite electrodes could be a novel candidate that could be used as an appropriate for Li storage material.
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