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Enhanced stability performance of nickel nanowire with 3D conducting network for planar sodium-nickel chloride batteries
Wu, Tian; Zhang, Sanpei; Ao, Xin; Wu, Xiangwei; Yang, Jianhua; Wen, Zhaoyin
2017
发表期刊Journal of Power Sources
ISSN03787753
卷号360页码:345-352
摘要High temperature sodium batteries with inorganic electrolytes are attracting increasing attention due to their high thermal stability, reliability, long-cycle life and safety. Despite the intensive investigation of Na-NiCl2batteries during last decades, designing a stable conducting network in the cathode is still challenging but desirable. In this work, a new cathode structure composed of Ni nanowires with an effective electron conducting network is proposed for planar sodium–nickel chloride batteries. During the first stage of charge, Ni nanowires reacted with Cl ion to form NiCl2on the surface and the excessive Ni nanowires inside can serve as conducting framework to facilitate the fast electron transport. As expected, the metal nanowires show a high specific capacity of 130 mA h g−1(∼14 mAh cm−2) at 0.05 C after 100 cycles. Meanwhile, the batteries show stable cycling performance at 0.05 C with a high cut-off energy density of 360 W h kg−1, much higher than the traditional tubular sodium-nickel chloride batteries (∼100 Wh kg−1). Scanning electron microscope (SEM) images of the cathode after long cycling reveal the ultra-slow growth of Ni particles, confirming the excellent stability of the prepared nanowires cathode. © 2017 Elsevier B.V.
DOI10.1016/j.jpowsour.2017.06.015
EI入藏号20172403767526
EI主题词Secondary batteries
EI分类号702.1.2 Secondary Batteries - 708.4 Magnetic Materials - 761 Nanotechnology - 933 Solid State Physics
引用统计
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25869
专题中国科学院上海硅酸盐研究所
作者单位CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai; 200050, China
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Wu, Tian,Zhang, Sanpei,Ao, Xin,et al. Enhanced stability performance of nickel nanowire with 3D conducting network for planar sodium-nickel chloride batteries[J]. Journal of Power Sources,2017,360:345-352.
APA Wu, Tian,Zhang, Sanpei,Ao, Xin,Wu, Xiangwei,Yang, Jianhua,&Wen, Zhaoyin.(2017).Enhanced stability performance of nickel nanowire with 3D conducting network for planar sodium-nickel chloride batteries.Journal of Power Sources,360,345-352.
MLA Wu, Tian,et al."Enhanced stability performance of nickel nanowire with 3D conducting network for planar sodium-nickel chloride batteries".Journal of Power Sources 360(2017):345-352.
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