Preparation and properties of spherical spinel LiMn2O4 cathode by electrolysis at low temperatures

ISL OpenIR > 青海盐湖研究所知识仓储

	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
关键词	Low Temperatures Electrolysis Spherical Spinel Limn2o4 Cathode Lithium Ion
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.
语种	英语
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中国科学院青海盐湖研究所盐湖资源与化学实验室
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
推荐引用方式 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.