Liu Fei, Song Shuyan, Xue Dongfeng, Zhang Hongjie
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, People's Republic of China.
Nanoscale Res Lett. 2012 Feb 21;7(1):149. doi: 10.1186/1556-276X-7-149.
Lithium-ion batteries are supposed to be a key method to make a more efficient use of energy. In the past decade, nanostructured electrode materials have been extensively studied and have presented the opportunity to achieve superior performance for the next-generation batteries which require higher energy and power densities and longer cycle life. In this article, we reviewed recent research activities on selective crystallization of inorganic materials into nanostructured electrodes for lithium-ion batteries and discuss how selective crystallization can improve the electrode performance of materials; for example, selective exposure of surfaces normal to the ionic diffusion paths can greatly enhance the ion conductivity of insertion-type materials; crystallization of alloying-type materials into nanowire arrays has proven to be a good solution to the electrode pulverization problem; and constructing conversion-type materials into hollow structures is an effective approach to buffer the volume variation during cycling. The major goal of this review is to demonstrate the importance of crystallization in energy storage applications.
锂离子电池被认为是更高效利用能源的关键方法。在过去十年中，纳米结构电极材料得到了广泛研究，并为下一代需要更高能量和功率密度以及更长循环寿命的电池提供了实现卓越性能的机会。在本文中，我们回顾了关于无机材料选择性结晶成用于锂离子电池的纳米结构电极的近期研究活动，并讨论了选择性结晶如何改善材料的电极性能；例如，垂直于离子扩散路径的表面选择性暴露可以大大提高插入型材料的离子电导率；合金型材料结晶成纳米线阵列已被证明是解决电极粉化问题的良好方案；将转换型材料构建成中空结构是缓冲循环过程中体积变化的有效方法。本综述的主要目标是证明结晶在储能应用中的重要性。
