钡镁锰矿/水羟锰矿型锂离子电池阴极材料的结构和电化学性能研究

CORC > 厦门大学 > 1999年第5卷

	钡镁锰矿/水羟锰矿型锂离子电池阴极材料的结构和电化学性能研究; Structural and Electrochemical Studies on Todorokite/Vernadite as Cathodes for Rechargeable Lithium Ion Batteries
	储炜 ; 刘德尧 ; 尤金跨 ; 杨勇 ; 林祖赓 ; Chu Wei ; Liu Deyao ; You Jinkua ; Yang Yong ; Lin Zugeng
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract9450.shtml
	1999-02-28
关键词	锂离子电池锰氧化物钡镁锰矿水羟锰矿结构稳定性 Lithium ion battery Manganese oxides Todorokite Vernadite structural stability.
英文摘要	利用ＸＲＤ、ＴＥＭ、ＩＣＰ、低速ＣＶ以及恒流充放电等方法研究了一种３Ｖ锂离子电池阴极材料的结构及其电化学性能．样品主要由大隧道型结构的钡镁锰矿和层状结构的水羟锰矿组成，该样品的微观形貌为层间距约１０ｎｍ的叠片状结构．Ｌｉ＋在样品中的嵌入脱出过程具有较好的可逆性和循环稳定性．未经提纯的样品前３０次循环的放电比容量达到１２９ｍＡｈ／ｇ，１００次循环后为９６ｍＡｈ／ｇ．材料结构中嵌入隧道及层间的杂质金属阳离子起着结构支撑以及维持材料的微观结构和电化学性能稳定性的作用．; XRD,TEM,ICP,low scan_rate CV and charge/discharge tests were carried out for the studies on the structural and electrochemical behavior of a prepared 3 V manganese oxide cathode for rechargeable lithium ion batteries.XRD analysis revealed that the cathode sample is mainly composed of tunneled Todorokite and layered Vernadite.TEM investigation confirmed that the morphology of the sample is a laminated construction with approximate 10nm layer space.The reversibility of Li + removal/intercalation and structural stability of this sample framework to lithium insertion are good in CV and charge/discharge tests. The discharge capacities were found to be about 129mAh/g obtained on first 30 cycles and remained to be 96mAh/g after 100 charge/discharge cycles.The inlaid cations in the tunnel or interlayer made contribution to the structural and electrochemical stability of this manganese oxide cathode framework.; 作者联系地址：厦门大学固体表面物理化学国家重点实验室; Author's Address: State Key Laboratory for Physical Chemistry of Solid Surface, Inst. of Phys. Chem.,Dept.of Chem.,Xiamen Univ.,Xiamen 361005
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/57487]
专题	1999年第5卷
推荐引用方式 GB/T 7714	储炜,刘德尧,尤金跨,等. 钡镁锰矿/水羟锰矿型锂离子电池阴极材料的结构和电化学性能研究, Structural and Electrochemical Studies on Todorokite/Vernadite as Cathodes for Rechargeable Lithium Ion Batteries[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract9450.shtml,1999.
APA	储炜.,刘德尧.,尤金跨.,杨勇.,林祖赓.,...&Lin Zugeng.(1999).钡镁锰矿/水羟锰矿型锂离子电池阴极材料的结构和电化学性能研究.http://electrochem.xmu.edu.cn/CN/abstract/abstract9450.shtml.
MLA	储炜,et al."钡镁锰矿/水羟锰矿型锂离子电池阴极材料的结构和电化学性能研究".http://electrochem.xmu.edu.cn/CN/abstract/abstract9450.shtml (1999).