期刊
JOURNAL OF POWER SOURCES
卷 263, 期 -, 页码 276-279出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2014.04.012
关键词
Sodium ion batteries; Tin; Binder; Anode material
资金
- Assistant Secretary for Energy Efficiency
- Vehicle Technologies Office of the U.S. Department of Energy, under the Batteries for Advanced Transportation Technologies (BATT)
- Applied Battery Research (ABR) Program
- National Natural Science Foundation of China [51204038]
- China Scholarship Council [201208210038]
- Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]
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.
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