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Improving the electrochemical performance of Na3V2(PO4)(3) cathode in sodium ion batteries through Ce/V substitution based on rational design and synthesis optimization
Zheng, Qiong1; Yi, Hongming1,2; Liu, Wanqiu1,2; Li, Xianfeng1,3; Zhang, Huamin1,3
KeywordNa3v2(Po4)(3) Ce/v Substitution Sodium Ion Batteries Bulk Phase Characteristic High Mass Loading
Source PublicationELECTROCHIMICA ACTA
2017-06-01
DOI10.1016/j.electacta.2017.04.029
Volume238Pages:288-297
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectElectrochemistry
WOS Research AreaElectrochemistry
WOS KeywordDOPED LI3V2(PO4)(3)/C ; RECHARGEABLE BATTERY ; ELECTRODE MATERIAL ; LITHIUM BATTERIES ; ENERGY-STORAGE ; NAFEPO4 ; STABILITY ; VOLTAGE ; LIFEPO4
AbstractCe atom is employed to partially substitute V site in Na3V2(PO4)(3) (NVP) crystal structure to improve its bulk phase characteristic. The effect of Ce substitution on the crystal structure, morphology, electrochemical performance and kinetic property of NVP is investigated based on rational design and synthesis optimization. The results indicates that the moderate Ce substitution in the NVP crystal can effectively enhance the bulk phase electronic conductivity and Na+ mobility, which excludes the carbon coating effect for the first time. And Na3V1.96Ce0.04(PO4)(3)/C shows the best electrochemical performances among the Na3V2-xCex(PO4)(3)/C (x = 0, 0.02, 0.04, 0.06 and 0.1) samples. It delivers a discharge capacity of 118 mAh g(-1) at 0.2C and more than 100 mAh g(-1) even at 40C, which is currently the highest level by metallic ion doping. After 100 cycles, the capacity retention of Na3V1.96Ce0.04(PO4)(3)/C keeps higher than 99% at 10C. The outstanding performance of the moderate Ce-doping sample is verified further by the electrochemical performance test of the samples with high mass loading, which is highly beneficial to industrial applications of Na3V2(PO4)(3) cathode for high performance sodium ion batteries. (C) 2017 Elsevier Ltd. All rights reserved.
Language英语
WOS IDWOS:000401113500033
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152283
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Qiong,Yi, Hongming,Liu, Wanqiu,et al. Improving the electrochemical performance of Na3V2(PO4)(3) cathode in sodium ion batteries through Ce/V substitution based on rational design and synthesis optimization[J]. ELECTROCHIMICA ACTA,2017,238:288-297.
APA Zheng, Qiong,Yi, Hongming,Liu, Wanqiu,Li, Xianfeng,&Zhang, Huamin.(2017).Improving the electrochemical performance of Na3V2(PO4)(3) cathode in sodium ion batteries through Ce/V substitution based on rational design and synthesis optimization.ELECTROCHIMICA ACTA,238,288-297.
MLA Zheng, Qiong,et al."Improving the electrochemical performance of Na3V2(PO4)(3) cathode in sodium ion batteries through Ce/V substitution based on rational design and synthesis optimization".ELECTROCHIMICA ACTA 238(2017):288-297.
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