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Phase-separation-driven formation of Nickel–Cobalt oxide nanotubes as high-capacity anode materials for lithium-ion batteries
Materials Research Letters ( IF 8.3 ) Pub Date : 2019-05-09 , DOI: 10.1080/21663831.2019.1613267
Bingqing Xu 1 , Bingkun Hu 1 , Qinghua Zhang 1 , Yijie Xu 1 , Yuan Liu 1 , Wei Yu 1 , Liangliang Li 1 , Yang Shen 1 , Ce-Wen Nan 1 , Yuan-Hua Lin 1
Affiliation  

Nickel–Cobalt oxide nanotubes are prepared by a simple electrospinning technique based on a phase-separation mechanism. Extra tetraethyl orthosilicate (Si(OC2H5)4) is introduced and removed by design to obtain nanotube structure. The prepared nanotubes deliver remarkable electrochemical performance as the lithium-ion batteries anode materials. It possesses a capacity of 924 mAh/g after 95 cycles at 100 mA/g. At 2000 mA/g, it has a high capacity of 770 mAh/g, and still has 255 mAh/g at 1000 mA/g after 500 cycles. The outstanding electrochemical performance is attributed to the unique hierarchical tubular nanostructures design. This simple method opens new opportunities for fabricating practical nanostructured anode materials.



中文翻译:

镍钴钴纳米管的相分离驱动形成作为锂离子电池的高容量阳极材料

镍-钴氧化物纳米管是通过基于相分离机制的简单电纺技术制备的。引入多余的原硅酸四乙酯(Si(OC 2 H 54),并通过设计除去,以得到纳米管结构。制备的纳米管作为锂离子电池负极材料具有出色的电化学性能。在100 mA / g的95个循环后,它的容量为924 mAh / g。在2000 mA / g下,它具有770 mAh / g的高容量,在500次循环后,在1000 mA / g下仍具有255 mAh / g。出色的电化学性能归因于独特的分层管状纳米结构设计。这种简单的方法为制造实用的纳米结构阳极材料提供了新的机会。

更新日期:2019-05-09
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