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A novel fiber bundle structure ZnCo sub(2)O sub(4) as a high capacity anode material for lithium-ion battery
A novel fiber bundle nanostructured ZnCo sub(2)O sub(4) (ZCO) is prepared by a typical and facile co-precipitation method using oxalic acid as complex agent. XRD, SEM, and TEM analyses show the as-prepared ZCO crystals have a high purity and a good crystallinity, and the ZCO nanowires with a diamete...
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Published in: | Journal of alloys and compounds 2014-09, Vol.606, p.219-225 |
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container_title | Journal of alloys and compounds |
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creator | Song, Xiong Ru, Qiang Mo, Yudi Hu, Shejun An, Bonan |
description | A novel fiber bundle nanostructured ZnCo sub(2)O sub(4) (ZCO) is prepared by a typical and facile co-precipitation method using oxalic acid as complex agent. XRD, SEM, and TEM analyses show the as-prepared ZCO crystals have a high purity and a good crystallinity, and the ZCO nanowires with a diameter of 10-30 nm are composed of uniform ZCO nanocrystals with a size of 30-60 nm. The novel structure with enough free space is beneficial to improving the electrochemical performance. The as-prepared ZCO fiber bundle used as an anode material for lithium-ion batteries exhibits a high specific capacity of 1026.3 mAhg super(-1) at a current rate of 100 mA g super(-1) after 100 cycles, as well as a high power capability at elevated current rates, i.e., 1015.1 and 606.2 mA h g super(-1) at current rates of 500 and 2000 mA g super(-1), respectively. It has a great prospect for the application of anode materials for lithium-ion batteries. |
doi_str_mv | 10.1016/j.jallcom.2014.03.190 |
format | article |
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XRD, SEM, and TEM analyses show the as-prepared ZCO crystals have a high purity and a good crystallinity, and the ZCO nanowires with a diameter of 10-30 nm are composed of uniform ZCO nanocrystals with a size of 30-60 nm. The novel structure with enough free space is beneficial to improving the electrochemical performance. The as-prepared ZCO fiber bundle used as an anode material for lithium-ion batteries exhibits a high specific capacity of 1026.3 mAhg super(-1) at a current rate of 100 mA g super(-1) after 100 cycles, as well as a high power capability at elevated current rates, i.e., 1015.1 and 606.2 mA h g super(-1) at current rates of 500 and 2000 mA g super(-1), respectively. 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XRD, SEM, and TEM analyses show the as-prepared ZCO crystals have a high purity and a good crystallinity, and the ZCO nanowires with a diameter of 10-30 nm are composed of uniform ZCO nanocrystals with a size of 30-60 nm. The novel structure with enough free space is beneficial to improving the electrochemical performance. The as-prepared ZCO fiber bundle used as an anode material for lithium-ion batteries exhibits a high specific capacity of 1026.3 mAhg super(-1) at a current rate of 100 mA g super(-1) after 100 cycles, as well as a high power capability at elevated current rates, i.e., 1015.1 and 606.2 mA h g super(-1) at current rates of 500 and 2000 mA g super(-1), respectively. 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subjects | Alloys Anodes Bundling Coprecipitation Fibers Lithium batteries Lithium-ion batteries Nanostructure Oxalic acid |
title | A novel fiber bundle structure ZnCo sub(2)O sub(4) as a high capacity anode material for lithium-ion battery |
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