As electric vehicles, portable electronic devices and tools have increasingly high requirements for battery energy density and power density, constantly improving battery performance has become a research focus. Accurate measurement of the structure‐activity relationship of active materials is the key to advancing the research of high‐performance batteries. However, the conventional performance tests of active materials are based on the electrochemical measurement of porous composite electrodes containing active materials, polymer binders, and conductive carbon additives, which cannot establish an accurate structure‐activity relationship with the physical characterization of microregions. In this review, in order to promote the accurate measurement and understanding of the structure‐activity relationship of materials, the electrochemical measurement and physical characterization of energy storage materials at single‐particle scale are reviewed. The potential problems and possible improvement schemes of the single particle electrochemical measurement and physical characterization are proposed. Their potential applications in single particle electrochemical simulation and machine learning are prospected. This review aims to promote the further application of single particle electrochemical measurement and physical characterization in energy storage materials, hoping to achieve three‐dimensional unified evaluation of physical characterization, electrochemical measurement, and theoretical simulation at the single particle scale to provide new inspiration for the development of high‐performance batteries.This article is protected by copyright. All rights reserved

中文翻译：

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单颗粒尺度结构-活性关系研究为高性能电池开发提供新见解


随着电动汽车、便携式电子设备和工具对电池能量密度和功率密度的要求越来越高，不断提高电池性能已成为研究热点。活性材料构效关系的准确测量是推进高性能电池研究的关键。然而，活性材料的常规性能测试基于含有活性材料、聚合物粘合剂和导电碳添加剂的多孔复合电极的电化学测量，无法与微区域的物理表征建立准确的构效关系。在这篇综述中，为了促进对材料构效关系的准确测量和理解，对单颗粒尺度储能材料的电化学测量和物理表征进行了综述。提出了单颗粒电化学测量和物理表征的潜在问题和可能的改进方案。展望了它们在单粒子电化学模拟和机器学习中的潜在应用。本综述旨在推动单粒子电化学测量和物理表征在储能材料中的进一步应用，希望能够在单粒子尺度上实现物理表征、电化学测量和理论模拟的三维统一评价，为储能材料的研究提供新的启发。高性能电池的开发。本文受版权保护。版权所有