XJIPC OpenIR  > 材料物理与化学研究室
镍钴酸锂的空气气氛下高温固相合成
Alternative Titlestudy on synthesis of lini0.7co0.3o2 by high temperature solid phase method in atmosphere
郭红兵; 康雪雅; 王天雕; 韩英
2005
Source Publication电子元件与材料
ISSN1001-2028
Volume24Issue:6Pages:18-20
Abstract

通过改进马弗炉结构,在空气气氛下合成了LiNi0.7Co0.3O2锂离子二次电池正极材料。利用XRD、SEM和循环充放电测试等手段,研究了材料结构与电化学性能之间的关系。实验电池以C/3的电流倍率在2.7~4.2V进行恒流充放电循环,电池首次充电比容量与放电比容量分别为181mAh/g和157mAh/g,库仑效率为86.7%。经过15次循环后,放电比容量趋于稳定,库仑效率保持在98%以上。循环40次,放电比容量为122mAh/g。

Other Abstract

Using converting the air in muffle sufficiently, LiNio.7Coo.3O2 lithium-ion battery anode materials were synthesized by solid state reaction in air condition. The relationship between material structure and electrochemicat properties were characterized by means of X-ray diffraction (XRD), scanning electron microscope (SEM) and charge-discharge studies. The experiment cells were charged at constant current (C/3) to 4.2 V, after a rest period of 2 min, cells were discharged to 2.7 V at the same constant current (C/3). The specific charge and discharge capacity of the first circle are 181 mAh/g and 157 mAh/g, respectively. And its coulombic efficiency is 86.7%. After the fifteen cycle, the specific discharge capacity gets stably, and the coulombic efficiency of each cycle is over 98%, the specific discharge capacity retains 122 mAh/g in the fortieth cycle.

Keyword无机非金属材料 锂离子电池 正极材料 锂镍钴氧化物
Subject AreaEngineering (Provided By Thomson Reuters)
DOI10.14106/j.cnki.1001-2028.2005.06.006
Indexed ByCSCD
CSCD IDCSCD:2102851
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/2137
Collection材料物理与化学研究室
Affiliation中国科学院新疆理化技术研究所;中国科学院研究生院
Recommended Citation
GB/T 7714
郭红兵,康雪雅,王天雕,等. 镍钴酸锂的空气气氛下高温固相合成[J]. 电子元件与材料,2005,24(6):18-20.
APA 郭红兵,康雪雅,王天雕,&韩英.(2005).镍钴酸锂的空气气氛下高温固相合成.电子元件与材料,24(6),18-20.
MLA 郭红兵,et al."镍钴酸锂的空气气氛下高温固相合成".电子元件与材料 24.6(2005):18-20.
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