Crumpled ZnMn2O4 Nanosheets for Long-Term-Cycling Lithium-Ion Battery Anodes

被引：28
作者：
Gu, Shaozhen [1 ]
Xu, Jing [1 ]
Lu, Bingan [1 ]
机构：
[1] Hunan Univ, Coll Mat Sci & Engn, Coll Phys & Elect, Changsha 410082, Hunan, Peoples R China
来源：
ENERGY TECHNOLOGY | 2016年 / 4卷 / 09期
基金：
中国国家自然科学基金;
关键词：
electrospinning; energy storage; lithium-ion batteries; nanomaterials; zinc manganate; ELECTRODE PERFORMANCE ANODES; DOUBLE PROTECTION STRATEGY; SENSITIZED SOLAR-CELLS; HIGH-RATE CAPABILITY; NANOCRYSTALLINE ZNMN2O4; TEMPERATURE SYNTHESIS; NANOTUBES; STORAGE; NANOPARTICLES; NANOFIBERS;
D O I：
10.1002/ente.201600087
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Crumpled zinc manganate nanosheets (ZnMn2O4 NSs) have been synthesized by electrospinning and used as anode material for high-performance lithium-ion batteries. The crumpled ZnMn2O4 NSs exhibit a reversible capacity of 461mAhg(-1) at 100mAg(-1) even after 500cycles, excellent rate capability, and long cycling stability (almost no capacity degradation after the 20(th) cycle). The excellent electrochemical performance may be mainly attributed to the novel crumpled nanostructure of the ZnMn2O4, which provides reduced diffusion length for the transport of Li(+)ions as well as mechanical buffer space to accommodate the volume variation during Li+ insertion/extraction. The formation mechanism of electrospun crumpled ZnMn2O4 NSs is further discussed in detail.
引用
收藏
页码：1106 / 1111
页数：6
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