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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
Source PublicationRARE METAL MATERIALS AND ENGINEERING
Volume36Issue:8Pages:1477-1479
SubtypeArticle
AbstractThe 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.
KeywordLow Temperatures Electrolysis Spherical Spinel Limn2o4 Cathode Lithium Ion
WOS HeadingsScience & Technology ; Technology
WOS KeywordLITHIUM MANGANESE OXIDE ; ION BATTERIES ; ELECTROCHEMICAL PROPERTIES ; PERFORMANCE ; IMPROVEMENT
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000249456800038
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/5808
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Inst Salt Lakes, Xining 810008, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
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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