TY - JOUR
T1 - Phase-separation-driven formation of nickel-cobalt oxide nanotubes as high-capacity anode materials for lithium-ion batteries
AU - Xu, Bingqing
AU - Hu, Bingkun
AU - Zhang, Qinghua
AU - Xu, Yijie
AU - Liu, Yuan
AU - Yu, Wei
AU - Li, Liangliang
AU - Shen, Yang
AU - Nan, Ce Wen
AU - Lin, Yuan Hua
N1 - Funding Information:
This work was supported by Basic Science Center Project of NSFC [grant number 51788104], and the Natural Science Foundation of China [grant numbers 51532003 and 51729201].
Publisher Copyright:
© 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
PY - 2019/1/8
Y1 - 2019/1/8
N2 - 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. IMPACT STATEMENT: This paper gives a simple phase separation method to fabricate polycrystalline nanotube structures and the nanotubes are suitable as lithium battery anode materials with remarkably enhanced lithium storage.
AB - 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. IMPACT STATEMENT: This paper gives a simple phase separation method to fabricate polycrystalline nanotube structures and the nanotubes are suitable as lithium battery anode materials with remarkably enhanced lithium storage.
KW - High capacity anode materials
KW - Lithium-ion batteries
KW - Phase separation method
KW - Transition metal oxide
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U2 - 10.1080/21663831.2019.1613267
DO - 10.1080/21663831.2019.1613267
M3 - Article
AN - SCOPUS:85102830261
SN - 2166-3831
VL - 7
SP - 368
EP - 375
JO - Materials Research Letters
JF - Materials Research Letters
IS - 9
ER -
