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本文对采用不同正负极材料的锂离子电池，在充放电过程中采集其原位X射线衍射（XRD）数据，通过对所得系列谱图的分析，研究电池内部材料在反应过程中的锂离子脱嵌、晶格膨胀与收缩、金属元素价态转变、相变过程与多相共存等现象，从而获取物质微观结构与晶格参数的演变规律。该分析方法有助于明确锂离子电池在不同反应过程阶段的关键特征。
Abstract：This study collects in-situ X-ray diffraction(XRD) data during the charging and discharging cycles of lithium-ion batteries with different cathode and anode materials.Through the analysis of the obtained series spectra,the lithium ion intercalation and deintercalation behavior,lattice expansion and contraction,valence state transitions of various metal elements,phase transition processes and the coexistence of multiphase in the reaction process of the internal materials of the battery are studied,so as to obtain the evolution law of the microstructure and lattice parameters of the material.This analytical method is helpful to determine the key characteristics of lithium-ion batteries in different stages of the reaction process.
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基本信息:
DOI：10.19996/j.cnki.ChinBatlnd.2025.06.003
中图分类号:TM912
引用信息:
[1]嵇明翔,宋林霏,朱振东.原位XRD体系在锂离子电池中的研究[J].电池工业,2025,29(06):463-467.DOI:10.19996/j.cnki.ChinBatlnd.2025.06.003.
基金信息: