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锂离子电池正极材料LiFePO_4在Fe位掺杂的研究进展 被引量：6

Research Progress in the Fe Site Doped Cathode Materials for Li-ion Batteries of LiFePO_4
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摘要 橄榄石型LiFePO4是近年发展起来的一种锂离子电池正极材料,但是LiFePO4的电子导电率低和锂离子扩散速度慢限制了其实用化,需要改进.其中一种很有效的方法就是在LiFePO4的晶格中掺杂金属离子,使其产生晶格缺陷,促进Li+扩散,改善晶体内部的导电性能.LiFePO4有Li(M1)和Fe(M2)2个金属位,可使用金属离子对其改性.本文综述了对锂离子电池正极材料LiFePO4在Fe(M2)位掺杂的研究进展.LiFePO4在Fe(M2)位的掺杂主要采用Mn2+,Ni2+,Co2+,Mg2+等几种金属离子. Olivine LiFePO4is a new kind of cathode material for lithium-ion battery. But the intrinsic defects of poor electronic and ionic conductivity have limited its application in industry. It was found that some elements doped in LiFePO4 could improve its property. LiFePO4 has two sites, Li（M1） site and Fe（M2） site. The way to enhance the inherent electronic conductivity is to substitute the sites of Li or Fe by other metal ions. This paper is about the research progress in the Fe site doped cathode materials for Li-ion batteries of LiFePO4. The doped elements, Mn, Ni, Co, Mg are mainly empolyed.
作者 王恩通 刘根庆 任引哲
机构地区 山西师范大学化学与材料科学学院 山西工程技术学院
出处 《化学研究》 CAS 2007年第1期93-97,共5页 Chemical Research
基金 山西省高校2006科技开发研究资金资助项目 山西省自然科学基金(2003020)资助项目
关键词 锂离子电池 正极材料 磷酸铁锂 掺杂 lithium-ion battery cathode material LiFePO4 doping
分类号 TM911 [电气工程—电力电子与电力传动]
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参考文献34

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二级参考文献85

  • 1卢俊彪,张中太,唐子龙,郑子山.一种新型的锂离子电池正极材料——LiFePO_4[J].稀有金属材料与工程,2004,33(7):679-683. 被引量：21
  • 2麻明友.锂离子电池正极材料LiFePO_4C的制备与表征[J].吉首大学学报（自然科学版）,2004,25(3):64-67. 被引量：2
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  • 7Zhao H C, Dahn J D. Reducing carbon in LiFePO4/C composite electrodes to maximize specific energy, volumetric energy and tap density[J] .J Electrochem Soc, 2002, 149(9) : 1184 - 1189.
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化学研究
2007年 第1期

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