Chemomechanical behaviors of layered cathode materials in alkali metal ion batteries
Chemomechanical behaviors of layered cathode materials in alkali metal ion batteries
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DOI：
10.1039/c8ta06875e
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发表时间：
2018-11
影响因子：
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通讯作者：
Zhengrui Xu;Muhammad Mominur Rahman;Linqin Mu;Yijin Liu;Feng Lin
中科院分区：
文献类型：
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作者：
Zhengrui Xu;Muhammad Mominur Rahman;Linqin Mu;Yijin Liu;Feng Lin
层状阴极材料（LCM）由于其高能量密度和相对稳定的性能，代表了用于碱金属离子（例如，Li+和Na+）电池。液晶膜的化学机械行为是影响电池性能的重要因素，近年来受到广泛关注。大多数化学机械过程都有一些共同的化学和结构起源，这些起源是材料化学的中心，例如固态中的缺陷和局部键合环境。在这篇综述中，我们首先讨论了液晶膜的化学机械故障，介绍了它们的类别和对电池性能的负面影响。然后，我们系统地分析了控制化学机械击穿的引发和传播的因素，并总结了它们的形成机制。然后讨论了可以增强LCM的化学机械性能或减少化学机械破坏的破坏性影响的策略。最后，阐明了新的国家的最先进的技术，已被应用于研究化学机械故障。这篇综述几乎包括了液晶膜的化学力学行为的大多数方面，并提供了一些见解的重要化学图案，决定化学力学性能。因此，我们相信，先进的设计方案的LCM可以开发，以有效地解决化学机械故障的LCM问题。
Layered cathode materials (LCMs), because of their high energy density and relatively stable performance, represent an important class of cathode materials for alkali metal ion (e.g., Li+ and Na+) batteries. Chemomechanical behaviors of LCMs, which affect battery performance dramatically, have drawn extensive attention in recent years. Most chemomechanical processes have some common chemical and structural origins that are at the center of materials chemistry, for example, defects and local bonding environments in the solid state. In this review, we first discuss the chemomechanical breakdown of LCMs by introducing their categories and negative effects on the battery performance. We then systematically analyze factors that govern the initiation and propagation of chemomechanical breakdown and summarize their formation mechanisms. Strategies that can enhance the chemomechanical properties of LCMs or reduce the destructive effects of chemomechanical breakdown are then discussed. Finally, light is shed on the new state-of-the-art techniques that have been applied to study chemomechanical breakdown. This review virtually includes most aspects of the chemomechanical behaviors of LCMs and provides some insights into the important chemical motifs that determine the chemomechanical properties. Therefore, we believe that advanced design protocols of LCMs can be developed to effectively address the chemomechanical breakdown issue of LCMs.