Synthesis of LiFePO4 Using FePO4 Produced by Electrolyzing Fe1.5P Waste Slag
Source abstract
Abstract
在磷酸水溶液中, 以磷铁废渣为阳极、石墨为阴极, 恒流无膜电解后溶液由无色变为黄色, 用氨水调节pH值, 经过滤、洗涤、干燥, 得到淡黄色粉体, XRD和热分析结果表明该粉体组成为FePO 4 ·2H 2 O. 在电解产物中加入LiOH·H2O和葡萄糖, 用乙醇作溶剂充分研磨形成流变相前驱体, 在700℃氩气气氛中焙烧得到LiFePO 4 /C复合物. 用动电位极化方法分析了磷铁的电解过程, 用XRD、SEM和循环伏安法(CV)研究了LiFePO 4 /C复合物的结构、形貌及电化学性能. 测试结果表明LiFePO 4 /C复合物没有磷铁原料的杂质峰, 氧化电位和还原电位分别在3.54和3.33 V, 说明经过阳极袋电解能够消除磷铁原料中的杂质元素影响及锂离子脱/嵌过程中极化较小.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Extraction and Separation Processes · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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