| 二维层状氮化二钙作为钠离子电池负极材料 |
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| 引用本文： | 陈光海,白莹,吴锋,吴川.二维层状氮化二钙作为钠离子电池负极材料[J].应用化学,2018,35(3):0-0. |
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| 作者姓名： | 陈光海 白莹 吴锋 吴川 |
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| 作者单位： | 北京理工大学材料学院,环境科学与工程实验室,北京重点实验室 北京 100081;北京市电动汽车协同创新中心 北京 100081 |
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| 基金项目： | 国家973计划(2015CB251100)资助项目 |
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| 摘 要： | 以Ca3N2为前驱体,用高温热解法制备了2D层状结构Ca2N 并用X射线和扫描电镜对Ca2N的组成、结构和形貌进行了表征。 作为钠离子电池新型负极材料,在50 mA/g电流密度充放电,首次放电比容量可达584 mA·h/g,可逆比容量达180 mA·h/g。在2000 mA/g大电流密度下,仍有70 mA·h/g。
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| 关 键 词： | 氮化二钙 二维层状结构 钠离子电池 负极材料 |
| 收稿时间： | 2017-11-27 |
Two-Dimensional Layered Dicalcium Nitride as Anode Material for Sodium Ion Batteries |
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| CHEN Guanghai,BAI Ying,WU Feng,WU Chuan.Two-Dimensional Layered Dicalcium Nitride as Anode Material for Sodium Ion Batteries[J].Chinese Journal of Applied Chemistry,2018,35(3):0-0. |
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| Authors: | CHEN Guanghai BAI Ying WU Feng WU Chuan |
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| Institution: | Beijing Key Laboratory of Environmental Science and Engineering,School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China; Collaborative Innovation Center of Electric Vehicles in Beijing,Beijing 100081,China |
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| Abstract: | Two-dimensional layered Ca2N was synthesized via a pyrolysis method with Ca3N2 precursor. The component, structure and morphology of Ca2N were characterized by X-ray diffraction and scanning electron microscope. As a novel anode material of sodium ion batteries, the initial discharge capacity is up to 584 mA·h/g and the reversible capacity is about 180 mA·h/g at a current density of 50 mA/g. Even at a high current density of 2000 mA/g, a capacity of 70 mA·h/g can be retained. |
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| Keywords: | dicalcium nitride two-dimensional layered structure sodium ion batteries anode material |
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