近年來，生活品質的提升，舉凡行動電話、筆記型電腦、數位相
機皆對於輕薄短小的活動式能源需求大增，然而當今廣泛認為的理想能源:鋰離子二次電池，其具有高能量密度、高操作電壓、輸出功率高、可快速充放電、無記憶效應、循環壽命高…等特性，也因此對於鋰離子電池也日趨依賴
本文以分子動力學模擬法探討不同電場大小與不同電場方向對鋰離子在LixCoO2層間移動之影響。在不同鋰離子比例、不同溫度、不同電場大小與方向下進行平衡，以釐清電場大小與方向對鋰離子移動的影響
在平衡過程中發現驅動力大小固然重要，但鈷氧層間鋰離子的遷移通道存在之大小有佔有重要地位，在同溫條件下，鋰離子相對於基體之比例下降，即基體內空缺增加，更有利於鋰離子之擴散。由MSD分析可發現X方向的MSD對整體MSD貢獻較Y方向大，且此現象隨鋰離子相對比例越小而越不明顯。由於鋰離子帶有正電荷，因此其移動受到電場影響而具有方向性，隨電場增加而越趨向負方向移動。

In recent years, improving the quality of life, Whether it is a mobile phone, notebook computer, digital camera etc. Machine are surge active energy demand for light, thin, short, however, today's widely considered ideal energy: a lithium ion secondary battery, having high energy density, high operating voltage, high output power, fast charge and discharge, no memory effect, high cycle life ... and other characteristics, and therefore for the lithium-ion batteries are becoming increasingly dependent
We investigate the influence of different temperatures and different electric field on the lithium-ion mobile LixCoO2 layer by Molecular dynamics simulations. Balance in different temperatures, different farm size and direction of electric field, in order to clarify the influence of temperature and electric field on the movement of the lithium-ion.
In the balance of the process of discovery While the size of the driving force, but the size of the cobalt-oxygen layer lithium ion's migration channels exist of there occupies an important position in the same temperature conditions, lithium-ion phase for the proportion of the base body of the decline, that is based in vivo vacancies increase, moreconducive to the diffusion of the lithium-ion. MSD analysis can be found in the the X direction MSD contribution to the overall compared to the Y-direction, and this phenomenon with a lithium-ion relative proportions of the smaller and less obvious. As the lithium ion with a positive charge, so its movement is subject to the influence of an electric field having directionality tends to increase with the electric field while the more negative direction.

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