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化工新型材料  2018, Vol. 46 Issue (9): 198-201    
  科学研究 本期目录 | 过刊浏览 | 高级检索 |
锂离子电池正极材料LiMn0.8-xFe0.15+xMg0.05PO4的制备、表征及电化学过程研究
戴仲葭
中国石化石油化工科学研究院,北京100083
Synthesis,characterization and electrochemical process of LiMn0.8-xFe0.15+xMg0.05PO4 anode material for lithium ion battery
Dai Zhongjia
Sinopec Research Institute of Petroleum Processing,Beijing 100083
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摘要 采用溶剂热法制备了Mg掺杂的磷酸铁锰锂(LiMn0.8-xFe0.15+xMg0.05PO4)正极材料。通过X射线衍射、扫描电子显微镜、恒流充放电等手段对合成样品的结构、形貌及电化学性能进行了测试与表征。结果表明,所制样品为具有良好橄榄石型结构的纳米颗粒。Mg的掺入提升了材料中Mn和Fe的容量发挥率,0.1C倍率下材料的容量提升率达23.2%,1C倍率时循环100周后材料比容量为110.1mAh/g,容量保持率高于94%。
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戴仲葭
关键词:  锂离子电池  LiMn0.8-xFe0.15+xMg0.05PO4  电化学过程    
Abstract: LiMn0.8-xFe0.15+xMg0.05PO4 anode material was synthesized by the solvothermal method.The structure,morphology and electrochemical properties of as-prepared samples were characterized by XRD,SEM and galvanostatic charge and discharge process.The results showed that samples were nano particles with olivine-type structure.Mg doping improved capacity rate of Mn and Fe,promoted by 23.2% at 0.1C.Specific capacity after 100 cycles at 1 C was 110.1mAh/g with retention rate of more than 94%.
Key words:  lithium ion battery    LiMn0.8-xFe0.15+xMg0.05PO4    electrochemical process
收稿日期:  2017-05-24                     发布日期:  2018-11-05      期的出版日期:  2018-09-20
作者简介:  戴仲葭(1987-),男,博士,工程师,主要从事锂离子电池电极材料的研究。
引用本文:    
戴仲葭. 锂离子电池正极材料LiMn0.8-xFe0.15+xMg0.05PO4的制备、表征及电化学过程研究[J]. 化工新型材料, 2018, 46(9): 198-201.
Dai Zhongjia. Synthesis,characterization and electrochemical process of LiMn0.8-xFe0.15+xMg0.05PO4 anode material for lithium ion battery. New Chemical Materials, 2018, 46(9): 198-201.
链接本文:  
http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2018/V46/I9/198
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