合理设计
电极
材料科学
纳米技术
电池(电)
材料设计
离子
工程物理
计算机科学
化学
功率(物理)
热力学
物理
物理化学
复合材料
有机化学
作者
Xuhui Yao,Yunlong Zhao,Fernando A. Castro,Liqiang Mai
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2019-02-18
卷期号:4 (3): 771-778
被引量:74
标识
DOI:10.1021/acsenergylett.8b02555
摘要
Rational design of the morphology and complementary compounding of electrode materials have contributed substantially to improving battery performance, yet the capabilities of conventional electrode materials have remained limited in some key parameters including energy and power density, cycling stability, etc. because of their intrinsic properties, especially the restricted thermodynamics of reactions and the inherent slow diffusion dynamics induced by the crystal structures. In contrast, preintercalation of ions or molecules into the crystal structure with/without further lattice reconstruction could provide fundamental optimizations to overcome these intrinsic limitations. In this Perspective, we discuss the essential optimization mechanisms of preintercalation in improving electronic conductivity and ionic diffusion, inhibiting “lattice breathing” and screening the carrier charge. We also summarize the current challenges in preintercalation and offer insights on future opportunities for the rational design of preintercalation electrodes in next-generation rechargeable batteries.
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