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An asymmetric supercapacitor using sandwich-like NiS/NiTe/Ni positive electrode exhibits a super-long cycle life exceeding 200 000 cycles

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成果类型:
期刊论文
作者:
Chen, Shuguang*;Wu, Baoxin;Qian, Hao;Wu, Zixu;Liu, Peng;...
通讯作者:
Chen, Shuguang;Liu, Bo
作者机构:
[He, Hao; Qian, Hao; Li, Fujin; Liu, Peng; Wu, Zixu; Wu, Baoxin; Chen, Shuguang] Changsha Univ Sci & Technol, Sch Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China.
[Wu, Jianghong] Shenzhen Technol Univ, Coll Hlth Sci & Environm Engn, Shenzhen 518118, Guangdong, Peoples R China.
[Liu, Bo] Michigan Technol Univ, Dept Biomed Engn, Houghton, MI 49931 USA.
通讯机构:
[Chen, Shuguang] C
[Liu, Bo] M
Changsha Univ Sci & Technol, Sch Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China.
Michigan Technol Univ, Dept Biomed Engn, Houghton, MI 49931 USA.
语种:
英文
关键词:
Buffer layers;Durability;Electrodes;Nickel;Nickel sulfates;Supercapacitor;Tellurium compounds;Asymmetric supercapacitor;Cyclic stability;High energy densities;NiTe;Pseudo-capacitive materials;Structural synergy;Volumetric expansion;Volumetric shrinkage;Sulfur compounds
期刊:
Journal of Power Sources
ISSN:
0378-7753
年:
2019
卷:
438
页码:
227000
基金类别:
This work was supported by the National Natural Science Foundation of China [grant no. 51701022 ].
机构署名:
本校为第一且通讯机构
院系归属:
材料科学与工程学院
摘要:
Supercapacitor with high energy density and super-long cyclic durability is attractive for the rechargeable energy storage devices. The combination of multiple pseudo-capacitive materials is favorable for improving the energy density of supercapacitor, but the rationally designed electrode structures are highly desirable for achieving the super-long cyclic durability. Here we realize a novel hierarchical NiS/NiTe/Ni positive electrode for supercapacitor, and the assembled asymmetric supercapacitor using the positive electrode demonstrates a sup...

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