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Revisiting of Tetragonal NaVPO4F: A High Energy Density Cathode for Sodium-Ion Batteries

文献类型：期刊论文

作者Ling, Moxiang3,4; Lv, Zhiqiang3,4; Li, Fan2,3; Zhao, Junmei1; Zhang, Huamin4; Hou, Guangjin4; Zheng, Qiong4; Li, Xianfeng4
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2020-07-08
卷号12期号:27页码:30510-30519
关键词tetragonal NaVPO4F high energy density sodium ion batteries cathodes crystal structure
ISSN号1944-8244
DOI10.1021/acsami.0c08846
英文摘要Tetragonal NaVPO4F has been regarded as an ideal cathode for sodium-ion batteries because of its high average plateau (3.8 V) and theoretical specific capacity (143 mA h g(-1)). However, the Na-storage performance is still hindered by unsatisfying thermal stability and poor conductivity. Herein, a stable tetragonal NaVPO4F has been synthesized by a novel solvent thermal method using a carbon coating precursor. The as-prepared NaVPO4F@C nanocomposite delivers a capacity of 133 mA h g(-1) at 0.2 C, corresponding to an excellent energy density of 509 W h kg(-1) ; when coupled with an HC anode, the full cell still displays an outstanding performance of 124 mA h g(-1) at 0.05 C. Fast Na+ diffusion kinetics (DNa+ = 10(-12) to 10(-10) cm(2) s(-1)) and small volume change (4.4%) are exploited, which ensures good rate trait and cycling stability of tetragonal NaVPO4F. Further, the Na+ extraction-insertion mechanism has been explored by analyzing the crystal structure change during in situ X-ray powder diffraction cycles.
WOS关键词ELECTROCHEMICAL PERFORMANCE ; PRUSSIAN BLUE ; PROMISING CATHODE ; SUPERIOR CATHODE ; ELECTRODE ; LITHIUM ; MECHANISM ; INSIGHTS ; CAPACITY ; NANORODS
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21070500] ; DNL Cooperation Fund, CAS[DNL201914]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000550633400049
出版者AMER CHEMICAL SOC
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; DNL Cooperation Fund, CAS
源URL[http://ir.ipe.ac.cn/handle/122111/41527]  
专题中国科学院过程工程研究所
通讯作者Zheng, Qiong; Li, Xianfeng
作者单位1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Ling, Moxiang,Lv, Zhiqiang,Li, Fan,et al. Revisiting of Tetragonal NaVPO4F: A High Energy Density Cathode for Sodium-Ion Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(27):30510-30519.
APA Ling, Moxiang.,Lv, Zhiqiang.,Li, Fan.,Zhao, Junmei.,Zhang, Huamin.,...&Li, Xianfeng.(2020).Revisiting of Tetragonal NaVPO4F: A High Energy Density Cathode for Sodium-Ion Batteries.ACS APPLIED MATERIALS & INTERFACES,12(27),30510-30519.
MLA Ling, Moxiang,et al."Revisiting of Tetragonal NaVPO4F: A High Energy Density Cathode for Sodium-Ion Batteries".ACS APPLIED MATERIALS & INTERFACES 12.27(2020):30510-30519.

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来源：过程工程研究所

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