Low temperature synthesis of NiO/Co3O4 composite nanosheets as high performance Li-ion battery anode materials |
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Authors: | QingQin Liang YueMing Li JingHong Li |
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Affiliation: | 1. Department of Chemistry, Tsinghua University, Beijing, 100084, China 2. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China
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Abstract: | NiO/Co3O4 composite nanosheets have been synthesized via a facile method at low temperature for the first time.The as prepared materials were characterized by X-ray powder diffraction(XRD) and transmission electron microscopy(TEM),and the performance of Li-ion batteries(LIBs) as anode materials were also studied.By controlling the atom ratio of Ni:Co,not only the size of the nanosheets can be controlled,the electrode’s conductivity and stability could also be greatly improved.The composite material showed a stable capacity retention during cycling(87% of the second capacity was retained after 15 cycles) even at a relatively large current rate(400 mA/g).The NiO/Co3O4 nanosheet might be promising candidate anode materials in high performance Li-ion batteries. |
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Keywords: | nanosheets NiO/Co3O4 composites Li-ion batteries anode |
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