锂离子电池负极材料锡基氧化物的研究  

Research on Tin Oxide as Cathode Material For Lithium Ion Battery

作　　者：杨春芳[1] 翟秀静 张爱梨 暴水生[2] 符岩 孙晓萍[2] 

机构地区：[1]东北大学材料与冶金学院 [2]鞍山师范学院化学系

出　　处：《黄金学报》2001年第3期180-183,共4页Gold Journal

摘　　要：采用锡基复合氧化物作为锂离子二次电池负极材料,并对其进行了合成及电化学测试.电化学测试结果表明,样品(包括SnO和SnO2以及在SnO中添加B、P、Al等元素之后的复合氧化物)的可逆容量可分别达到612mAh/g、598mAh/g和658mAh/g.这充分证明了锡基氧化物用于锂离子二次电池是非常合适的.另外,通过X射线衍射分析和SEM(电子扫描电镜)对锡基复合氧化物作了分析研究.XRD分析结果表明,在SnO中添加B、P、Al等元素之后所焙烧出的产物完全是玻璃体结构.在SEM表征结果中显示出SnO是粒子状结构,在SnO中添加B、P、Al等元素之后,样品的形貌是不规则的四角形态,粒径分布范围较广.结果表明锡基复合氧化物作为锂离子电池负极材料很有应用前景.Tin oxide composites used as cathode materials for Lithium ion secondary battery were synthesized and electrochemical poperties were tested. Electrochemical measurements showed that the reversible capacity of the samples (including nO2. SnO and additive materials B, P, Al etc elements on SnO) had respectively reached as high as 612 mAh/g, 589 mAh/g, 58 mAh/g. It proved that the tin oxide composites were suitable to use cathode materials for Lithium ion secondary batteries. The mechanism of Lithium ion reaction is studied by X ray diffraction. The results reveal the fact that the reversible capacity of the samples and their cycle life and discharge-charge energy had beed improved, when the additive materials B. P. Al etc lements were added to SnO. The Tin-basic composite samples had higher the reversible capacities than any other of graphite. In electrochemical test, the discharge voltage had reached up 0.0V. The discharge time had reached up 11 h～14 h. The additive materials B. P. Al etc elements were added to SnO, it was glass structure by XRD. By SEM it showed that SnO were pellet articles structure and the tin based composite samples were not regular tetragonal. The results proved that the samples are to be promising for developing the cathode material of Lithium ion secondary batteries.

关 键 词：锡基复合氧化物 负极材料 锂离子电池 

分 类 号：TM912.2[电气工程—电力电子与电力传动]