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题名: Facile construction of nanoscale laminated Na3V2(PO4)(3) for a high-performance sodium ion battery cathode
作者: Zheng, Qiong1;  Liu, Wanqiu1, 3;  Li, Xianfeng1, 2;  Zhang, Hongzhang1, 2;  Feng, Kai1;  Zhang, Huamin1, 2
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2016
DOI: 10.1039/c6ta07109k
卷: 4, 期:48, 页:19170-19178
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: A novel facile construction of nanoscale laminated Na3V2(PO4)(3) for a high-performance sodium ion battery (SIB) cathode is proposed. In the synthesis process, a crystallized intermediate precursor with low-cost raw materials is prepared by introducing a high temperature molten-state NH3 thermal-reduction process, which acts as a reaction template to control the crystal growth and the final morphology of Na3V2(PO4)(3). The assynthesized nanoscale laminated Na3V2(PO4)(3) possesses continuous Na+/electron pathways, large electrode/electrolyte contact area and sufficient carbon coating, resulting in fast Na+ extraction/insertion and electron transport during the electrochemical reaction process, which is shown to achieve excellent rate capability and decent cycling stability. At a low rate of 0.5C, the discharge specific capacity is approximately 117 mA h g(-1), which is very close to its theoretical specific capacity, and there is only a very minor capacity fade after continuous 250 cycles at 2C. Even at 50C, the discharge specific capacity is as high as 80 mA h g(-1) and the reversible capacity retention after 3000 cycles remains more than 78%. In addition, the X-NVP cathode shows stable cycling performance and acceptable rate performance with a reversible capacity of 110 mA h g(-1) at 0.2C at a low temperature of -20 degrees C, which has rarely been reported previously in the SIB field. The intermediate precursor prepared by the high temperature moltenstate thermal-reduction method, acting as the reaction template of the final product, provides a facile and economic solution for the synthesis of high-performance SIB cathode materials.
关键词[WOS]: CARBON-COATED NA3V2(PO4)(3) ;  RECHARGEABLE BATTERY ;  ELECTRODE MATERIAL ;  CYCLING STABILITY ;  ENERGY-STORAGE ;  NA ;  NAFEPO4 ;  UNIFORM ;  MATRIX
语种: 英语
WOS记录号: WOS:000390433700059
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/151844
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China
2.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Zheng, Qiong,Liu, Wanqiu,Li, Xianfeng,et al. Facile construction of nanoscale laminated Na3V2(PO4)(3) for a high-performance sodium ion battery cathode[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(48):19170-19178.
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