浙江绍兴锂离子电池锑基负极材料的研究现状数据集（2022年）

锑(Sb)基材料用作锂离子电池负极,存在合金化/去合金化过程的体积膨胀问题,阻碍商业化应用。总结金属锑、锑基合金及锑基化合物材料(如锑基氧化物、锑基硒化物和锑基硫化物等)作为锂离子电池负极材料时存在的体积膨胀等问题,归纳相应的解决策略,如材料纳米化、碳包覆等;分析不同改性手段制备材料性能提升的主要原因。本文作者综述了锂离子电池用锑基负极材料近年来的研究进展。从锑单质到锑基合金和锑基化合物,人们针对锑基负极存在的严重体积膨胀问题,从材料尺寸的纳米化、构建多元合金材料、基于产生协同效应以减小体积变化的转化-合金化机制等方面,对锑基负极进行了广泛深入的研究。 综合对比各种改性手段的实际表现,发现仅通过单一化的手段,难以缓解锑基负极材料在充放电过程中的体积效应,而调控材料内部各因素之间的协同作用,是解决锑基负极存在问题的方法之一。 即便如此,仍需综合多种手段来改善锑基负极的电化学性能,进一步推动锑基负极材料的商业化进程。

Antimony (Sb)-based materials are employed as anode materials for lithium-ion batteries, but the volume expansion during the alloying/dealloying process severely hinders their commercial application. This work summarizes the problems (such as volume expansion) faced when metallic antimony, Sb-based alloys, and Sb-based compounds (including Sb-based oxides, selenides, sulfides, etc.) are used as lithium-ion battery anodes, and summarizes corresponding mitigation strategies such as material nanostructuring and carbon coating; it also analyzes the main reasons for the performance improvement of materials prepared via different modification methods. This paper reviews the recent research progress of Sb-based anode materials for lithium-ion batteries. Starting from elemental antimony to Sb-based alloys and Sb-based compounds, extensive and in-depth studies have been carried out to address the severe volume expansion issue of Sb-based anodes, including strategies like reducing the material size via nanostructuring, constructing multi-component alloy materials, and adopting conversion-alloying mechanisms that produce synergistic effects to mitigate volume changes. Through comprehensive comparison of the actual performance of various modification methods, it is found that a single modification approach is difficult to effectively alleviate the volume effect of Sb-based anode materials during charging and discharging cycles, while regulating the synergistic interaction among various internal factors of the material is one of the effective solutions to the problems of Sb-based anodes. Even so, multiple modification strategies still need to be combined to improve the electrochemical performance of Sb-based anodes, so as to further promote the commercialization process of Sb-based anode materials.

搜集汇总

背景与挑战

背景概述

该数据集总结了2022年浙江绍兴锂离子电池锑基负极材料的研究现状，重点关注锑基材料在充放电过程中存在的体积膨胀问题及其阻碍商业化应用的情况。通过归纳金属锑、锑基合金和锑基化合物等材料的改性策略，如纳米化、碳包覆和协同效应调控，分析性能提升原因，并指出需综合多种手段以进一步推动商业化进程。