脂肪族冠醚在电池电解液中的应用
Application of aliphatic-crown ethers in battery electrolytes
脂肪族冠醚在电池电解液中的应用 |
| 方黎锋 |
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Application of aliphatic-crown ethers in battery electrolytes |
| Lifeng FANG |
| 图3 锂在添加有12-冠醚-4和无冠醚电解液中的沉积形貌比较：沉积容量0.05 mAh/cm2 和电流密度0.5 mA/cm2 下，在无冠醚 (a) 和添加有12-冠醚-4 (b) 电解质中的锂沉积物的SEM图像；在无冠醚 (c) 和添加有12-冠醚-4 (d) 电解质中锂沉积形貌的3D原子力显微镜 (AFM) 图像(扫描尺寸2 μm×2 μm)；(e)两个沉积层的高度剖面图；(f)～(h) 在添加有12-冠醚-4的电解质中沉积容量增长 (0.1～0.5 mAh/cm2) 时的形貌变化；(i) 在无冠醚电解液中沉积容量为0.5 mAh/cm2 时的形貌；电流密度3 mA/cm2 下，无冠醚 (j) 和添加有12-冠醚-4 (k) 电解质中的锂沉积物光学显微镜图像[ |
| Fig. 3 Comparison of Li deposition morphology in 12-crown-4 added and CrEt -free electrolytes. SEM images of Li deposits at a deposition capacity of 0.05 mAh/cm2 and a current density of 0.5 mA/cm2 in CrEt-free (a) and 12-crown-4 added (b) electrolytes. 3D atomic force microscopy (AFM) images (2 μm×2 μm scan size) of Li deposition morphology in CrEt-free (c) and 12-crown-4added (d) electrolytes. (e)( Height profiles of these two deposits. (f)-(h) Morphologies at increased deposition capacities (0.1～0.5 mAh/cm2) in a 12-crown-4added electrolyte. (i) Morphology at a deposition capacity of 0.5 mAh/cm2 in a CrEt-free electrolyte. Optical microscopy observations of Li electrochemical deposition in CrEt-free (j) and 12-crown-4added (k) electrolytes at a current density of 3 mA/cm2[ |
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