鋰離子電池陰極材料之研究與發展

Research and Development of Cathode Materials for Li-Ion Batteries

蔡英文(Yin-Wen Tsai) ； 黃炳照(Bing Joe Hwang)

《化學》 62卷2期 (2004/06) Pp. 251-262

https://doi.org/10.6623/chem.2004018

摘要

鋰離子電池陰極材料的研究，仍以開發高電容量、高操作電壓、高穩定性、高安全性及價格便宜之陰極材料為研究主軸，以符合3C 電子產品電能使用之需求。陰極材料之實際電容量與其結構特性息息相關，如何由其結構特性之瞭解，以提高陰極材料之實際電容量，亦是研究之主要課題。本文主要介紹鋰離子電池陰極材料之發展，並結合臨場研究技術，如X-光吸收光譜、X 光繞射圖譜與固態核磁共振光譜等，來探討陰極材料之長距離結構、吸收原子周圍局部結構與鋰離子於材料結構中之環境，擷取更豐富之鋰離子嵌入釋出結構之訊息，提供開發新型鋰離子電池陰極材料之用。

關鍵字

鋰離子電池 ； 陰極材料 ； 結構 ； X－光吸收光譜

並列摘要

To meet the power requirements of 3C electric products, the research of Li-ion batteries is focused on developing a cathode material with high capacity, high operating voltage, high capacity retention, high safety and low cost. The practical capacity of cathode materials is strongly related to their structural characteristics. To increase the practical capacity of cathode materials, it is also a main research to understand their structural characteristics. The research and development of cathode materials for Li-ion batteries will be introduced in this paper. Combining in-situ experiments, such as X-ray absorption spectroscopy, X-ray diffraction and solid state NMR etc., provides the long-range structure, local structure around the selected absorber and the Li environments in the framework of cathode materials developed recently. The detailed information about their structural characteristics during Li insertion and extraction processes would be helpful to develop a novel cathode material for Li-ions batteries.

並列關鍵字

Lithium ion batteries ； Cathode materials ； Structure ； X-ray absorption spectroscopy