第 48 卷第 6 期 |  | Vol. 48 No. 6 | 2018 年 12 月 | Dec 2018 |
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所屬欄目:功能材料
鉛筆頭狀Co3V2O8/石墨烯復合物的制備及其電化學(xué)性能研究 |
魏 洋,韓 濤,靳秀芝,尚瑞瑞,杭德亮,趙 融
(中北大學(xué) 材料科學(xué)與工程學(xué)院,山西 太原 030051) |
摘 要:通過(guò)水熱-煅燒的方法制得鉛筆頭狀Co3V2O8,再和氧化石墨烯(GO)通過(guò)水熱法制備出鉛筆頭狀Co3V2O8/G復合物。采用XRD、SEM對樣品的物相組成和形貌進(jìn)行了表征與分析,并對其進(jìn)行了電化學(xué)性能測試。研究結果表明:鉛筆頭狀Co3V2O8/G復合物作為鋰離子電池負極材料時(shí),表現出更高的可逆容量、很好的循環(huán)穩定性以及優(yōu)異的倍率性能。 |
關(guān)鍵詞:鋰離子電池;鉛筆頭狀Co3V2O8;石墨烯;電化學(xué)性 |
中圖分類(lèi)號:TM912 文獻標識碼:A 文章編號: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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基金項目:中北大學(xué)材料科學(xué)與工程學(xué)院研究生科技項目基金。
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作者簡(jiǎn)介:魏 洋(1996-),男,山西長(cháng)治人,碩士研究生,研究方向:鋰離子電池電極材料(E-mail:18636650270@163.com)。
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聯(lián) 系 人:韓濤,副教授(E-mail:nucceramic@163.com)。
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收稿日期:2018-12-20
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