第 48 卷第 6 期 | | Vol. 48 No. 6 | 2018 年 12 月 | Dec 2018 |
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所属栏目:功能材料
铅笔头状Co3V2O8/石墨烯复合物的制备及其电化学性能研究 |
魏 洋,韩 涛,靳秀芝,尚瑞瑞,杭德亮,赵 融
(中北大学 材料科学与工程学院,山西 太原 030051) |
摘 要:通过水热-煅烧的方法制得铅笔头状Co3V2O8,再和氧化石墨烯(GO)通过水热法制备出铅笔头状Co3V2O8/G复合物。采用XRD、SEM对样品的物相组成和形貌进行了表征与分析,并对其进行了电化学性能测试。研究结果表明:铅笔头状Co3V2O8/G复合物作为锂离子电池负极材料时,表现出更高的可逆容量、很好的循环稳定性以及优异的倍率性能。 |
关键词:锂离子电池;铅笔头状Co3V2O8;石墨烯;电化学性 |
中图分类号:TM912 文献标识码:A 文章编号:1009-9212(2018)06-0061-04 |
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Synthesis and Electrochemical Properties of Pencil-shaped Co3V2O8/G Composites |
WEI Yang, HAN Tao, JIN Xiu-zhi, SHANG Rui-rui, HANG De-liang, ZHAO Rong
(School of Materials Science and Engineering, North University of China, Taiyuan 030051, China) |
Abstract:The pencil-shaped Co3V2O8 was synthesized by a hydrothermal-calcination method, and then Co3V2O8/G composites were hydrothermally synthesized with graphene oxide. The crystalline phase, structure and morphology of the samples were characterized by X-ray diffraction(XRD) and scanning electron microscopy (SEM), respectively. And the electrochemical performance was also evaluated. The results revealed that the pencil-shaped Co3V2O8/G composites used in anode materials of lithium ion batteries showed a high reversible capacity, good cycle stability and excellent rate performance. |
Key words:lithium ion battery; pencil-shaped Co3V2O8; graphene; electrochemical performance |
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基金项目:中北大学材料科学与工程学院研究生科技项目基金。
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作者简介:魏 洋(1996-),男,山西长治人,硕士研究生,研究方向:锂离子电池电极材料(E-mail:18636650270@163.com)。
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联 系 人:韩涛,副教授(E-mail:nucceramic@163.com)。
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收稿日期:2018-12-20
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