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锂离子电池正极材料Li[Co_xLi_((1/3)-(x/3))Mn_((2/3)-(2x/3))]O_2的制备与表征 被引量：1

Synthesis and Characterizations of Li[Co_xLi_((1/3)-(x/3))Mn_((2/3)-(2x/3))]O_2 Cathode Materials for Lithium Secondary Batteries
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摘要 采用柠檬酸盐法合成了Li[CoxLi1/3-x/3Mn2/3-2x/3]O2(x=0.1,0.2,0.3,0.4,0.5)正极材料.利用X射线衍射(XRD),Raman光谱和红外光谱(FTIR)等方法研究不同质量分数的Co对材料晶体结构的影响,并分析了原因.对不同组分的材料进行了电化学性能测试,结果表明,当x=0.5时,样品充放电容量高,循环性能优良. Li[CoxLi1/3-x/3Mn2/3-2x/3]O2（x= 0.1,0. 2,0. 3 ,0. 4,0. 5 ） cathode materials were synthesized by means of the citric acid-based sol-gel method. Their structures and electrochemical properties were investigated via XRD, Raman, FTIR and electrochemical charge-discharge cycling. The results show that the material with x = 0.5 exhibited the highest reversible capacity and the best capacity retention.
作者 陈红 徐春艳 魏英进 王春忠
机构地区 吉林大学材料科学与工程学院 北华大学物理学院 襄樊
出处 《吉林大学学报（理学版）》 CAS CSCD 北大核心 2009年第4期823-826,共4页 Journal of Jilin University:Science Edition
基金 国家重点基础研究发展计划973项目基金(批准号:2009CB220104) 教育部长江学者和创新团队发展计划项目基金(批准号:IRT0625) 吉林省科技发展计划项目基金(批准号:20060511)
关键词 锂离子电池 Li[CoxLi1/3-x/3Mn2/3-2x/3]O2 RAMAN光谱 红外光谱 lithium secondary battery Li[CoxLi1／3-x/3Mn2／3-2x/3]O2 Raman spectrum FTIR
分类号 TG156 [金属学及工艺—热处理]
  • 相关文献

参考文献10

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同被引文献17

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  • 6WEI Y J, NIKOLOWSKI K, ZHAN S Y, et aI. Electroeheraieal kinetics and cycling performance of nano Li[Li0.23Co0.3Mn0.47]O2 cathode material for lithium ion batteries[J]. Electrochem Comm, 2009,11 : 2008 2011.
  • 7HUANG Z F,DU F,WANG C Z,et al. Low-spin Mn^3+ ion in rhombohedral LiMnO2 predicted by first-principles calculations[J]. Phys Rev B,2007,75:054411-054414.
  • 8MARCANO N, SAL G J C, ESPESO J I, et al. Cluster -glass percolative scenario in CeNi1-x Cux studied by very low- temperature ac susceptibility and dc magnetizalion[J]. Phys Rev B,2007,76:224419 -224423.
  • 9DEAC I G,MITCHELI. J F,SCHIFFER P. Phase separation and low field bulk magnetic properties of Pr0.7Ca0 .3 MnO3[j] Phys Rev B,2001,63:172408-172411.
  • 10MORI T, MAMIYA H. Dynamical properties of a crystalline rare-earth boron cluster spin glass system[J].Phys Rev B,2003, 68:214422 -214426.

引证文献1

吉林大学学报（理学版）
2009年 第4期

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