| 铁基普鲁士蓝正极的制备及电化学储钠性能 |
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| 引用本文： | 梅简,曾挺健,裘吕超,张杰,刘春丽,谢健,赵新兵.铁基普鲁士蓝正极的制备及电化学储钠性能[J].无机化学学报,2020,36(5):795-801. |
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| 作者姓名： | 梅简 曾挺健 裘吕超 张杰 刘春丽 谢健 赵新兵 |
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| 作者单位： | 国网浙江省电力有限公司电力科学研究院, 杭州 310014,浙江华云电力实业集团有限公司, 杭州 310000,国网浙江省电力有限公司电力科学研究院, 杭州 310014,国网浙江省电力有限公司电力科学研究院, 杭州 310014,浙江大学材料科学与工程学院, 杭州 310027,浙江大学材料科学与工程学院, 杭州 310027,浙江大学材料科学与工程学院, 杭州 310027 |
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| 基金项目： | 国家电网浙江省电力有限公司重点科技项目（No.5211DS18003G）资助。 |
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| 摘 要： | 通过引入抗氧化剂(抗坏血酸)和配位剂(柠檬酸钠),采用共沉淀法在室温下制备出了高钠含量、低缺陷的铁基普鲁士蓝材料。由于高的钠含量和低的晶体缺陷,该材料在0.1C时容量可达110.0 mAh·g^-1。除了普鲁士蓝材料独特的开放框架结构,其多边界结构和低的缺陷,使该材料表现出优异的倍率性能和循环稳定性。在10C大电流下,容量仍有86.6 mAh·g^-1,1C电流下经过1300次循环,容量保持在90.1 mAh·g^-1,容量保持率达到86.9%。
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| 关 键 词： | 电化学 能量转换 钠离子电池 正极材料 普鲁士蓝材料 电化学性能 |
| 收稿时间： | 2020/1/2 0:00:00 |
| 修稿时间： | 2020/3/13 0:00:00 |
Preparation and Electrochemical Na-Storage Properties of Fe-Based Prussian Blue Cathode |
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| MEI Jian,ZENG Ting-Jian,QIU Lü-Chao,ZHANG Jie,LIU Chun-Li,XIE Jian,ZHAO Xin-Bing.Preparation and Electrochemical Na-Storage Properties of Fe-Based Prussian Blue Cathode[J].Chinese Journal of Inorganic Chemistry,2020,36(5):795-801. |
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| Authors: | MEI Jian ZENG Ting-Jian QIU Lü-Chao ZHANG Jie LIU Chun-Li XIE Jian ZHAO Xin-Bing |
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| Institution: | State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China,Zhejiang Huayun Electric Power Industrial Group Co. Ltd., Hangzhou 310000, China,State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China,State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China,School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China,School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | In this work, Na-rich, low-defect Fe-based Prussian blue material has been synthesized by coprecipitation method at room temperature using antioxidant (ascorbic acid) and chelating agent (sodium citrate). At 0.1C, the material exhibited a high capacity of 110.0 mAh·g-1 due to high Na content and low crystal defect. The material also showed excellent rate capability and cycling stability due to the border-rich structure and low defect, besides unique open framework structure of the Prussian blue material. At a current rate up to 10C, the material can still yield a capacity of 86.6 mAh·g-1. After 1 300 cycles at current density of 1C, the material could keep a capacity of 90.1 mAh·g-1, corresponding to the capacity retention of 86.9%. |
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| Keywords: | electrochemistry energy conversion sodium ion battery cathode material Prussian blue material electrochemical performance |
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