球形Sn-SnSb合金纳米粒子制备及其储锂性能

CORC > 厦门大学 > 2014年第20卷

	球形Sn-SnSb合金纳米粒子制备及其储锂性能; Preparation and Lithium Storage Performance of Sn-SnSb Nanoparticles
	肖尧 ; 吴娇红 ; 王琪 ; 黄令 ; 李君涛 ; 孙世刚 ; XIAO Yao ; WU Jiao-hong ; WANG Qi ; HUANG Ling ; LI Jun-tao ; SUN Shi-gang
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract10089.shtml
	2014-08-28
关键词	球形Sn-SnSb纳米粒子锂离子电池负极 spherical SnSb nanoparticles lithium ion batteries negative electrode
英文摘要	锂离子电池Sn负极材料有较高的比容量，但其容量随周期循环急剧衰减. 若Sn与Sb形成SnSb合金可以改善其循环性能. 本文采用有机液相还原方法制备了球形Sn-SnSb合金纳米粒子，其首周期循环充电容量1235.9 mAh·g-1，放电容量为785.9 mAh·g-1，经过50周的循环之后其放电容量保持在409.2 mAh·g-1，表现出较好的循环性能.; Tin was widely studied as alternative anode material to carbon for lithium-ion batteries thanks to its much higher theoretical capacity. However, a pure tin electrode suffers severely from its poor cycleability due to mechanical fatigue caused by volume change during lithium insertion and extraction processes. Tin-based alloy may improve the cycleability property of tin electrode. In this article, we report facile synthesis of spherical Sn-SnSb nanopartciles using a simple solvent-thermal approach. It is amazing to find that the spherical Sn-SnSb nanoparticles can circumvent volume changes effectively during charge-discharge process. Electrochemical discharge/charge results show that the spherical Sn-SnSb nanoparticles electrode exhibits much better cycleability than pure Sn electrode, with first charge capacity and discharge capacity of 1235.9 and 785.9 mAh·g-1, respectively. After 50th cycling, the discharge capacity is 409.2 mAh·g-1.; 国家自然科学基金项目（No. 21273184）、科技部863计划项目（No. 2011AA11A254）和国家重点基础研究发展计划项目（No. 2009CB220102）项目资助; 作者联系地址：1. 厦门大学化学化工学院化学系，福建厦门 361005；2. 厦门大学能源研究院，福建厦门 361005; Author's Address: 1. Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005; 2. School of Energy Research, Xiamen University, Xiamen 361005; 通讯作者E-mail：huangl@xmu.edu.cn
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://dx.doi.org/10.13208/j.electrochem.130402]
专题	2014年第20卷
推荐引用方式 GB/T 7714	肖尧,吴娇红,王琪,等. 球形Sn-SnSb合金纳米粒子制备及其储锂性能, Preparation and Lithium Storage Performance of Sn-SnSb Nanoparticles[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract10089.shtml,2014.
APA	肖尧.,吴娇红.,王琪.,黄令.,李君涛.,...&SUN Shi-gang.(2014).球形Sn-SnSb合金纳米粒子制备及其储锂性能.http://electrochem.xmu.edu.cn/CN/abstract/abstract10089.shtml.
MLA	肖尧,et al."球形Sn-SnSb合金纳米粒子制备及其储锂性能".http://electrochem.xmu.edu.cn/CN/abstract/abstract10089.shtml (2014).