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Development and characterization of aqueous sodium-ion hybrid supercapacitor based on NaTi2(PO4)3//activated carbon
Zhang, Shuming1,2; Liu, Yu1; Han, Qi1,2; He, Shiyang1; Zhang, Na1; Yang, Jianhua1
2017
发表期刊Journal of Alloys and Compounds
ISSN09258388
卷号729页码:850-857
摘要In this work, for the first time, the sodium ion intercalated compound NaTi2(PO4)3has been designed to function as the anode in combination with activated carbon as the cathode to develop a novel aqueous sodium-ion hybrid supercapacitor based on the Na2SO4aqueous electrolyte. Both anode and cathode have been fabricated with a thick (>1 mm) freestanding structure. The as-proposed NaTi2(PO4)3//activated carbon hybrid supercapacitor exhibits a typical supercapacitor-battery behavior. During the galvanostatic charging and discharging process, a linear sloping voltage range from 0 to 0.8 V corresponding to supercapacitor has been observed and an obvious voltage plateau in the range of 0.8–1.6 V could be related with the battery characterization. The hybrid supercapacitor thus brings a much high energy density over conventional supercapacitor based on activated carbon electrode. The NaTi2(PO4)3//activated carbon system shows a discharge capacity of 27.5 mAh g−1with an average working voltage of 1.15 V, corresponding to a high energy density of 31.6 Wh kg−1at a power density of 23 W kg−1based on the total weight of active electrode materials. It also exhibits excellent cycling behavior with less than 11.7% capacitance loss after 2000 cycles at current density of 200 mA g−1. The cell delivers a relatively high power ability of 420 W kg−1with the energy density of 15.5 Wh kg−1. © 2017
DOI10.1016/j.jallcom.2017.08.256
EI入藏号20173904215068
EI主题词Supercapacitor
EI分类号531.1 Metallurgy - 701.1 Electricity: Basic Concepts and Phenomena - 702.1.2 Secondary Batteries - 704.1 Electric Components - 714.1 Electron Tubes - 804 Chemical Products Generally - 804.2 Inorganic Compounds
引用统计
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25770
专题中国科学院上海硅酸盐研究所
作者单位1.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式
GB/T 7714
Zhang, Shuming,Liu, Yu,Han, Qi,et al. Development and characterization of aqueous sodium-ion hybrid supercapacitor based on NaTi2(PO4)3//activated carbon[J]. Journal of Alloys and Compounds,2017,729:850-857.
APA Zhang, Shuming,Liu, Yu,Han, Qi,He, Shiyang,Zhang, Na,&Yang, Jianhua.(2017).Development and characterization of aqueous sodium-ion hybrid supercapacitor based on NaTi2(PO4)3//activated carbon.Journal of Alloys and Compounds,729,850-857.
MLA Zhang, Shuming,et al."Development and characterization of aqueous sodium-ion hybrid supercapacitor based on NaTi2(PO4)3//activated carbon".Journal of Alloys and Compounds 729(2017):850-857.
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