CAS OpenIR
Controlled Synthesis of Na-3(VOPO4)(2)F Cathodes with an Ultralong Cycling Performance
Shen, Xing1,3; Zhao, Junmei1; Li, Yuqi2,3; Sun, Xiaohong4; Yang, Chao1; Liu, Huizhou1; Hu, Yong-Sheng2,3
2019-10-01
Source PublicationACS APPLIED ENERGY MATERIALS
ISSN2574-0962
Volume2Issue:10Pages:7474-7482
AbstractNa-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.
Keywordcontrolled synthesis NVOPF hollow microspheres NVOPF@KB framework sodiation agent Na2C4O4 ultralong cycling stability
DOI10.1021/acsaem.9b01458
Language英语
WOS KeywordSODIUM-ION BATTERIES ; VANADIUM FLUOROPHOSPHATES ; HIGH-POWER ; FAMILY ; BLACK
Funding ProjectNational 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 Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationNational 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
WOS IDWOS:000502688800057
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38890
Collection中国科学院过程工程研究所
Corresponding AuthorZhao, Junmei; Liu, Huizhou; Hu, Yong-Sheng
Affiliation1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.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
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
4.Tianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
Recommended Citation
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.
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