Toward high specific capacity and high cycling stability of pure tin nanoparticles with conductive polymer binder for sodium ion batteries

被引：89
作者：
Dai, Kehua [1 ,2 ]
Zhao, Hui [2 ]
Wang, Zhihui [2 ]
Song, Xiangyun [2 ]
Battaglia, Vince [2 ]
Liu, Gao [2 ]
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA
来源：
JOURNAL OF POWER SOURCES | 2014年 / 263卷
基金：
中国国家自然科学基金;
关键词：
Sodium ion batteries; Tin; Binder; Anode material; ALLOY NEGATIVE ELECTRODES; ANODE MATERIAL; CATHODE MATERIAL; ELECTROCHEMICAL PERFORMANCE; POTENTIAL ANODE; LITHIUM; STORAGE; COMPOSITE; TIO2; NANOCOMPOSITES;
D O I：
10.1016/j.jpowsour.2014.04.012
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Pure Sn nanoparticles electrode with Poly(9,9-dioctylfluorene-co-fluorenone-co-methylbenzoic ester) (PFM) conductive binder was prepared and tested in sodium ion battery. It showed higher specific capacity and higher cycling stability without any carbon black compared with Sn/CMC (carboxy methylated cellulose) and Sn/PVDF (polyvinylidene fluoride) electrode. The Sn in Sn/PFM electrodes delivered 806 mAh g(-1) at C/50 and 610 mAh g(-1) at C/10. After 10 cycles at C/10, the capacity of Sn had no decay. SEM and TEM images showed that the Sn particles in Sn/PFM electrode were still in good conductive network despite big volume change, but parts of Sn particles in Sn/CMC or Sn/PVDF electrode are electrically isolated. Published by Elsevier B.V.
引用
收藏
页码：276 / 279
页数：4
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