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锂离子电池正极材料Li[Ni_(0.92)Co_(0.04)Mn_(0.04)]O_2的合成新方法 被引量：1

New Preparation Method for Cathode Material Li[Ni_(0.92)Co_(0.04)Mn_(0.04)]O_2 for Lithium Ion Batteries
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摘要 采用溶胶-凝胶法在球形Ni(OH)2颗粒表面包覆钴、锰氧化物,合成了核壳结构的镍钴锰酸锂复合正极材料Li[Ni0.92Co0.04Mn0.04]O2。用X射线衍射、扫描电镜、恒电流充放电测试等方法对材料的结构、表观形貌及电化学性能进行了表征。结果表明,与镍酸锂材料相比,该镍酸锂复合正极材料表现出了较高的比容量,较好的循环稳定性及更好的安全性。 Li[Ni0.92Co0.04Mn0.04]O2 was synthesized using spherical Ni（OH）2 particle coated by a sol-gel containing cobalt manganese and lithium.The cathode material was characterized by SEM,XRD,ICP and galvanostatic charge-discharge test.The results show that compared with lithium nickel oxide the cathode materials have higher specific capacity,better cycling and overcharge performance and high temperature resistance.
作者 杨驰
机构地区 绵阳师范学院化学与化学工程学院
出处 《材料导报》 EI CAS CSCD 北大核心 2014年第10期72-74,81,共4页 Materials Reports
基金 四川教育厅基金项目(11ZA165) 绵阳师范学院支持项目(2011D01)
关键词 正极材料 镍钴锰酸锂 包覆 过渡金属氧化物 cathode material lithium nickel-cobalt-manganese oxide coating transition metal oxide
分类号 O646 [理学—物理化学] TM911.1 [电气工程—电力电子与电力传动]
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参考文献13

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同被引文献16

  • 1袁超群,李道聪,沈玉芳,彭正合,周运鸿.锂离子电池正极材料LiNi_(0.75-x)Co_xMn_(0.25)O_2的合成及电化学性能研究[J].无机化学学报,2006,22(9):1645-1650. 被引量：3
  • 2顾惠敏,翟玉春,田彦文,曹文玉.锂离子电池正极材料LiNiO_2的结构和性能[J].材料研究学报,2007,21(1):97-101. 被引量：7
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  • 6THACKERAY M, SHAO H Y, KAHAIAN A J, et al. Structural fa- tigue in spinel electrodes in high voltage(4V) Li/LixMn204 cells[J]. Electrochemical Solid State Letters, 1998, 1(1): 7-9.
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  • 10LID C, SASAKI Y, KAGEYAMA M, et al. Structure, morphology and electrochemical properties of LiNi.5Mn0.5-xCoxO2 prepared by solid state reaction[J]. Journal of Power Sources, 2005, 148: 85-89.

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材料导报
2014年 第10期

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