Controlled Synthesis of Na-3(VOPO4)(2)F Cathodes with an Ultralong Cycling Performance
文献类型：期刊论文
| 作者 | Shen, Xing1,4; Zhao, Junmei1; Li, Yuqi3,4; Sun, Xiaohong2; Yang, Chao1; Liu, Huizhou1; Hu, Yong-Sheng3,4 |
| 刊名 | ACS APPLIED ENERGY MATERIALS
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 2期号:10页码:7474-7482 |
| 关键词 | controlled synthesis NVOPF hollow microspheres NVOPF@KB framework sodiation agent Na2C4O4 ultralong cycling stability |
| ISSN号 | 2574-0962 |
| DOI | 10.1021/acsaem.9b01458 |
| 英文摘要 | Na-ion batteries (NIBs) are increasingly studied as a low-cost technology for revolutionizing stationary energy storage applications. Many positive electrode materials have been extensively studied, mainly including layered oxides and polyanionic compounds. In particular, sodium vanadium fluorophosphates (NVPFs) are more attractive owing to their high theoretical capacity and energy density. This work reports on a significant increase in rate capability and cycling stability for Na-3(VOPO4)(2)F (NVOPF). The improvement is achieved by mixing Ketjenblack (KB) with NVOPF combined with the addition of sodiation agent Na2C4O4, based on a controllable synthesis of NVOPF hollow microspheres. It is a green and facile hydrothermal synthetic method by simply adjusting the phosphorus source and temperature. The nanosized NVOPF@KB framework formed by high-energy ball milling provides better rate capability, which exhibits a capacity of 118.3 mA h g(-1) at 20 C, while it is only 69.2 mA h g(-1) for NVOPF at 20 C. To be interested, the addition of Na2C4O4 could greatly prolong the cycling stability. As an example, the capacity retention of NVOPF@KB with Na2C4O4 increases to 99.41% from 33.42% compared with that without Na2C4O4 at 30 C. To our best knowledge, NVOPF@KB-Na2C4O4 shows the best Na-storage performance in terms of both superior rate capability (up to 150 C rate) and outstanding long cycling stability over 12000 cycles with a capacity retention of 71% reported so far. The current developed microsphere synthetic method and the improved strategies for cathodes would boost the development of positive electrode materials for ion batteries. |
| WOS关键词 | SODIUM-ION BATTERIES ; VANADIUM FLUOROPHOSPHATES ; HIGH-POWER ; FAMILY ; BLACK |
| 资助项目 | National Key Technologies R&D Program, China[2016YFB0901500] ; National Natural Science Foundation of China[51872289] ; National Natural Science Foundation of China[51672275] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21070500] ; Beijing Natural Science Foundation[2182074] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000502688800057 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Key Technologies R&D Program, China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Beijing Natural Science Foundation |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/38889]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhao, Junmei; Liu, Huizhou; Hu, Yong-Sheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Tianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Key Lab Renewable Energy,Beijing Key Lab New Ener, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Xing,Zhao, Junmei,Li, Yuqi,et al. Controlled Synthesis of Na-3(VOPO4)(2)F Cathodes with an Ultralong Cycling Performance[J]. ACS APPLIED ENERGY MATERIALS,2019,2(10):7474-7482. |
| APA | Shen, Xing.,Zhao, Junmei.,Li, Yuqi.,Sun, Xiaohong.,Yang, Chao.,...&Hu, Yong-Sheng.(2019).Controlled Synthesis of Na-3(VOPO4)(2)F Cathodes with an Ultralong Cycling Performance.ACS APPLIED ENERGY MATERIALS,2(10),7474-7482. |
| MLA | Shen, Xing,et al."Controlled Synthesis of Na-3(VOPO4)(2)F Cathodes with an Ultralong Cycling Performance".ACS APPLIED ENERGY MATERIALS 2.10(2019):7474-7482. |
入库方式： OAI收割
来源：过程工程研究所
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