Improving the electrochemical performance of Na3V2(PO4)(3) cathode in sodium ion batteries through Ce/V substitution based on rational design and synthesis optimization
文献类型：期刊论文
| 作者 | Zheng, Qiong2; Yi, Hongming1,2; Liu, Wanqiu1,2; Li, Xianfeng2,3; Zhang, Huamin2,3 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 238页码:288-297 |
| 关键词 | Na3v2(Po4)(3) Ce/v Substitution Sodium Ion Batteries Bulk Phase Characteristic High Mass Loading |
| DOI | 10.1016/j.electacta.2017.04.029 |
| 英文摘要 | Ce 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000401113500033 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/152283]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China 3.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：大连化学物理研究所
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