Fabrication of three-dimensional porous ZnMn2O4 thin films on Ni foams through electrostatic spray deposition for high-performance lithium-ion battery anodes

JOURNAL OF ALLOYS AND COMPOUNDS

卷:696

Article

Yuan, Jujun^1,2  Chen, Chunhui²  Hao, Yong²  Zhang, Xianke^1,2  Agrawal, Richa²  Zhao, Wenyan³  Wang, Chunlei²  Yu, Huajun¹  Zhu, Xiurong¹  Yu, Yi¹  Xiong, Zuzhou¹  Xie, Yingmao¹ 

[1] Gannan Normal Univ, Sch Phys & Elect, Ganzhou 341000, Peoples R China

[2] Florida Int Univ, Dept Mech & Mat Engn, Miami, FL 33174 USA

[3] Jingde Zhen Ceram Inst, Sch Mat Sci & Engn, Jingdezhen 333000, Peoples R China

关键词: ZnMn2O4 film;    Porous architecture;    Electrostatic spray deposition;    Lithium-ion battery;    Anode;   

DOI  :  10.1016/j.jallcom.2016.12.094

来源: Elsevier

【 摘 要 】

Three-dimensional (3D) porous ZnMn2O4 thin films on nickel foam substrates have been successfully synthesized through electrostatic spray deposition (ESD) method followed by an annealing process for lithium-ion battery anodes. These films exhibit excellent cycling performance with a reversible capacity of around 982 mAh g(-1) after 100 cycles at 400 mA g(-1). The ZnMn2O4 films also display good rate capability with 455 mAh g(-1) at 5 A g(-1). The superior battery performances of ZnMn2O4 films are ascribed to 3D porous ZnMn2O4 film directly deposited on Ni foam, which can offer effective empty space to accommodate the large volume variation during cycling, increase reaction sites, and improve the electron transport. The ESD strategy is facile, cost-effective, which can be potentially utilized to construct other 3D porous mixed transition-metal oxides materials as well. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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