Effect of Sintering-method on Electrochemical Performance of LiFePO4/C Cathode Material
Source abstract
Abstract
对LiFePO 4 /C复合前驱体, 分别采用静态氮气气氛, 动态氮气气氛及静态真空三种烧结方式进行碳热还原合成LiFePO 4 /C复合正极材料. 采用XRD、SEM、CV和充放电循环测试等方法分析和表征材料的结构、形貌和电化学性能. 结果表明, 烧结方式对所得材料的结晶度、晶粒大小、碳含量、合成温度以及电化学性能均有显著影响. 真空烧结所得材料结晶度高, 而动态气氛烧结对材料颗粒细化及均匀化都有积极影响, 同时也能有效促进锂离子扩散动力学. 动态气氛烧结可将材料的烧结温度降低到500℃, 且所得材料表现出优异的电化学性能. 0.5 C 倍率下循环首次放电比容量达到163.4 mAh/g, 50次循环后容量保持率为99.02%.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Technologies Research · Advanced Battery Materials and Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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