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Preparation and properties of spherical spinel LiMn2O4 cathode by electrolysis at low temperatures
Zhou Yuan; Yue Hongfei; Ran Guangfen
2007-08-01
发表期刊RARE METAL MATERIALS AND ENGINEERING
卷号36期号:8页码:1477-1479
文章类型Article
摘要The preparation and properties of spherical spinel LiMn2O4 cathode by electrolysis at low temperatures have been studied in this paper. Firstly, the spherical MnO2 was prepared by using the mixed solution of MnSO4 and H2SO4 as electrolytes and the lead plate of high purity as electrode. The temperature of electrolytic cell is controlled at 0 similar to 10 degrees C. Then, the MnO2 is dipped into LiNO3 solution of certain concentration. At last, the homogeneous spherical spinel lithium manganese oxide LiMn2O4 is synthesized at a low temperature of 520 degrees C and crystallized at a high temperature of 760 degrees C as cathode for lithium ion battery. The elementary structure and surface characteristics are analyzed by XRD and SEM, respectively. The results of assembly battery showed that the initial capacity is about 105 mAh.g(-1), and tends to be stable after 6 cycles. It keeps at 98.1 mAh.g(-1) for charging and 95.0 mAh.g(-1) for discharging, respectively, after 30 cycles, indicating the excellent cycle stability.
关键词Low Temperatures Electrolysis Spherical Spinel Limn2o4 Cathode Lithium Ion
WOS标题词Science & Technology ; Technology
关键词[WOS]LITHIUM MANGANESE OXIDE ; ION BATTERIES ; ELECTROCHEMICAL PROPERTIES ; PERFORMANCE ; IMPROVEMENT
收录类别SCI
语种英语
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000249456800038
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5808
专题青海盐湖研究所知识仓储
作者单位1.Chinese Acad Sci, Inst Salt Lakes, Xining 810008, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Zhou Yuan,Yue Hongfei,Ran Guangfen. Preparation and properties of spherical spinel LiMn2O4 cathode by electrolysis at low temperatures[J]. RARE METAL MATERIALS AND ENGINEERING,2007,36(8):1477-1479.
APA Zhou Yuan,Yue Hongfei,&Ran Guangfen.(2007).Preparation and properties of spherical spinel LiMn2O4 cathode by electrolysis at low temperatures.RARE METAL MATERIALS AND ENGINEERING,36(8),1477-1479.
MLA Zhou Yuan,et al."Preparation and properties of spherical spinel LiMn2O4 cathode by electrolysis at low temperatures".RARE METAL MATERIALS AND ENGINEERING 36.8(2007):1477-1479.
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