Crystallographically Textured Electrodes for Rechargeable Batteries: Symmetry, Fabrication, and Characterization,Chemical Reviews

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Crystallographically Textured Electrodes for Rechargeable Batteries: Symmetry, Fabrication, and Characterization
Chemical Reviews ( IF 51.4 ) Pub Date : 2022-08-11 , DOI: 10.1021/acs.chemrev.2c00022
Jingxu Zheng _{1,

2} , Lynden A Archer ₃

Affiliation

The vast of majority of battery electrode materials of contemporary interest are of a crystalline nature. Crystals are, by definition, anisotropic from an atomic-structure perspective. The inherent structural anisotropy may give rise to favored mesoscale orientations and anisotropic properties whether the material is in a rest state or subjected to an external stimulus. The overall perspective of this review is that intentional manipulation of crystallographic anisotropy of electrochemically active materials constitute an untapped parameter space in energy storage systems and thus provide new opportunities for materials innovations and design. To that end, we contend that crystallographically textured electrodes, as opposed to their textureless poly crystalline or single-crystalline analogs, are promising candidates for next-generation storage of electrical energy in rechargeable batteries relevant to commercial practice. This perspective is underpinned first by the fundamental─to a first approximation─uniaxial, rotation-invariant symmetry of electrochemical cells. On this basis, we show that a crystallographically textured electrode with the preferred orientation aligned out-of-plane toward the counter electrode represents an optimal strategy for utilization of the crystals’ anisotropic properties. Detailed analyses of anisotropy of different types lead to a simple, but potentially useful general principle that “P_ec//P_c” textures are optimal for metal anodes, and “P_ec//S_c” textures are optimal for insertion-type electrodes.

中文翻译：

用于可充电电池的晶体织构电极：对称性、制造和表征

当代感兴趣的绝大多数电池电极材料都具有结晶性质。根据定义，从原子结构的角度来看，晶体是各向异性的。无论材料处于静止状态还是受到外部刺激，固有的结构各向异性可能会产生有利的中尺度取向和各向异性特性。本综述的总体观点是，有意操纵电化学活性材料的晶体学各向异性构成了储能系统中未开发的参数空间，从而为材料创新和设计提供了新的机会。为此，我们认为晶体结构的电极，与其无纹理的多晶或单晶类似物相反，是与商业实践相关的可充电电池中下一代电能存储的有希望的候选者。这一观点首先得到了电化学电池的基本原理——第一近似值——单轴、旋转不变对称性的支持。在此基础上，我们表明具有优选取向的晶体纹理电极在平面外朝向反电极排列代表了利用晶体各向异性特性的最佳策略。对不同类型各向异性的详细分析得出了一个简单但可能有用的一般原则，即“ 在此基础上，我们表明具有优选取向的晶体纹理电极在平面外朝向反电极排列代表了利用晶体各向异性特性的最佳策略。对不同类型各向异性的详细分析得出了一个简单但可能有用的一般原则，即“ 在此基础上，我们表明具有优选取向的晶体纹理电极在平面外朝向反电极排列代表了利用晶体各向异性特性的最佳策略。对不同类型各向异性的详细分析得出了一个简单但可能有用的一般原则，即“P _ec // P _c ” 纹理最适合金属阳极，而“ P _ec // S _c ” 纹理最适合插入式电极。

更新日期：2022-08-11

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