CAS OpenIR
Freestanding Na3V2O2(PO4)(2)F/Graphene Aerogels as High-Performance Cathodes of Sodium-Ion Full Batteries
Chang, Wei1,2; Zhang, Xiao-Ying1; Qu, Jin1; Chen, Zhe3; Zhang, Yu-Jiao4; Sui, Yanqiu2; Ma, Xiu-Feng1; Yu, Zhong-Zhen2
2020-09-16
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume12Issue:37Pages:41419-41428
AbstractAlthough sodium vanadium fluorophosphate, Na-3(VO1-xPO4)(2)F1+2x (0 <= x <= 1), is a highly promising cathode candidate for sodium-ion batteries because of its stable structure and high working voltage, the low charge diffusion dynamics and the inactive materials used in traditional coating electrodes reduce the energy density of a sodium-ion full battery. Hence, Na3V2O2(PO4)(2)F/graphene aerogels (NVPF/GAs) with a three-dimensional continuous porous network are first prepared by coassembly and freeze-drying. The three-dimensional porous network helps to obtain a high NVPF content of 81 wt %, relieve the volume change for improving the cyclability, and enhance the wettability of the electrode with the electrolyte for accelerating the diffusion dynamics of sodium ions and electrons. As a directly used freestanding cathode without the use of any binder/collector, an optimized freestanding NVPF/GA electrode exhibits excellent cycling and rate performances compared to traditional coating electrodes. The average capacities at current densities of 0.2, 0.5, 1.0, 2.0, and 5.0 C are 135.4, 128.0, 125.1, 121.9, and 115.1 mA h g(-1), respectively. Especially, it maintains a capacity retention of 100% after 1000 cycles at an ultrahigh current of 40 C. A sodium-ion full battery with the NVPF/GA cathode and the Sb/graphene/carbon anode attains a of 82.1 mA h g(-1) without an obvious decline after 100 cycles.
Keywordgraphene aerogels sodium vanadium fluorophosphate sodium-ion batteries freestanding electrode full battery
DOI10.1021/acsami.0c11074
Language英语
WOS Keyword3-DIMENSIONAL GRAPHENE ; TEMPERATURE SYNTHESIS ; NANOPARTICLES ; NA3V2(PO4)(3) ; ANODE ; STRATEGY
Funding ProjectNational Natural Science Foundation of China[51972016] ; National Natural Science Foundation of China[51533001] ; Fundamental Research Funds for the Central Universities[XK1802] ; Science and Technology Projects of State Grid Corporation of China
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Science and Technology Projects of State Grid Corporation of China
WOS IDWOS:000572965700045
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42123
Collection中国科学院过程工程研究所
Corresponding AuthorQu, Jin; Yu, Zhong-Zhen
Affiliation1.Beijing Univ Chem Technol, Coll Mat Sci & Engn, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
2.Beijing Univ Chem Technol, Beijing Key Lab Adv Funct Polymer Composites, Beijing 100029, Peoples R China
3.North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chang, Wei,Zhang, Xiao-Ying,Qu, Jin,et al. Freestanding Na3V2O2(PO4)(2)F/Graphene Aerogels as High-Performance Cathodes of Sodium-Ion Full Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(37):41419-41428.
APA Chang, Wei.,Zhang, Xiao-Ying.,Qu, Jin.,Chen, Zhe.,Zhang, Yu-Jiao.,...&Yu, Zhong-Zhen.(2020).Freestanding Na3V2O2(PO4)(2)F/Graphene Aerogels as High-Performance Cathodes of Sodium-Ion Full Batteries.ACS APPLIED MATERIALS & INTERFACES,12(37),41419-41428.
MLA Chang, Wei,et al."Freestanding Na3V2O2(PO4)(2)F/Graphene Aerogels as High-Performance Cathodes of Sodium-Ion Full Batteries".ACS APPLIED MATERIALS & INTERFACES 12.37(2020):41419-41428.
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