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[1]宋晋阳,叶红齐,董 虹,等.正极材料LiNi1/3Co1/3Mn1/3O2的Mg掺杂及电化学性能[J].有色金属科学与工程,2013,(03):30-33.
 SONG Jin-yang,YE Hong-qi,DONG Hong,et al.Mg-doping and electrochemical properties of Li(Ni1/3Co1/3Mn1/3)O2 cathode material[J].,2013,(03):30-33.
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正极材料LiNi1/3Co1/3Mn1/3O2的Mg掺杂及电化学性能(/HTML)
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《有色金属科学与工程》[ISSN:1674-9669/CN:36-1311/TF]

卷:
期数:
2013年03期
页码:
30-33
栏目:
冶金·材料
出版日期:
2013-06-20

文章信息/Info

Title:
Mg-doping and electrochemical properties of Li(Ni1/3Co1/3Mn1/3)O2 cathode material
作者:
宋晋阳 叶红齐  董 虹 周晚珠 杜瑜敏 郝梦秋 覃 涛
中南大学化学化工学院,长沙 410083
Author(s):
SONG Jin-yang YE Hong-qi DONG Hong ZHOU Wan-zhu DU Yu-min HAO Meng-qiu QIN Tao
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083,China.
关键词:
锂离子电池正极材料掺杂
分类号:
TM912.9;TF111.52
DOI:
-
文献标志码:
A
摘要:
为提高正极材料LiNi1/3Co1/3Mn1/3O2的循环性能,采用氢氧化物共沉淀法对前驱体进行Mg掺杂,再经过混锂、球磨、高温煅烧后,分别对掺杂与未掺杂的正极材料进行了XRD、SEM及电化学性能的比较.研究结果表明:掺杂与未掺杂的正极材料都为标准的α-NaFeO2型层状结构,粒度大小无明显变化;对于掺杂量为0.03与未掺杂的正极材料,首轮放电比容量分别为138.2 mAh/g和145.3 mAh/g;而循环50轮的放电比容量则分别为131.1 mAh/g和119.5 mAh/g.由此可见,通过Mg掺杂,正极材料的首轮放电比容量虽有少量降低,而循环性能却有明显增强.

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金资助项目(21276284); 中南大学硕士生学位论文创新资助项目(2011ssxt086) 作者简介:宋晋阳(1987- ),男,硕士研究生,主要从事锂离子电池正极材料方面的研究, E-mail:pp20120918@163.com. 通信作者:叶红齐(1958- ),男,教授,博导,主要从事粉体材料方面的研究, E-mail:hongqiye@gmail.com.
更新日期/Last Update: 2013-06-20