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Revisiting of Tetragonal NaVPO4F: A High Energy Density Cathode for Sodium-Ion Batteries
Ling, Moxiang1,2; Lv, Zhiqiang1,2; Li, Fan2,3; Zhao, Junmei4; Zhang, Huamin1; Hou, Guangjin1; Zheng, Qiong1; Li, Xianfeng1
2020-07-08
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume12Issue:27Pages:30510-30519
AbstractTetragonal 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.
Keywordtetragonal NaVPO4F high energy density sodium ion batteries cathodes crystal structure
DOI10.1021/acsami.0c08846
Language英语
WOS KeywordELECTROCHEMICAL PERFORMANCE ; PRUSSIAN BLUE ; PROMISING CATHODE ; SUPERIOR CATHODE ; ELECTRODE ; LITHIUM ; MECHANISM ; INSIGHTS ; CAPACITY ; NANORODS
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA21070500] ; DNL Cooperation Fund, CAS[DNL201914]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; DNL Cooperation Fund, CAS
WOS IDWOS:000550633400049
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41528
Collection中国科学院过程工程研究所
Corresponding AuthorZheng, Qiong; Li, Xianfeng
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
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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