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[1]危 钰,雷 红,黄志良*,等.镁、锆离子掺杂磷酸铁锂的制备及其电化学性能[J].武汉工程大学学报,2017,39(05):450-454.[doi:10. 3969/j. issn. 1674?2869. 2017. 05. 008]
 WEI Yu,LEI Hong,HUANG Zhiliang*,et al.Preparation and Electrochemical Performances of Magnesium or Zircon Doped Lithium Iron Phosphates[J].Journal of Wuhan Institute of Technology,2017,39(05):450-454.[doi:10. 3969/j. issn. 1674?2869. 2017. 05. 008]
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镁、锆离子掺杂磷酸铁锂的制备及其电化学性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年05期
页码:
450-454
栏目:
材料科学与工程
出版日期:
2017-12-19

文章信息/Info

Title:
Preparation and Electrochemical Performances of Magnesium or Zircon Doped Lithium Iron Phosphates
文章编号:
20170508
作者:
危 钰雷 红黄志良*齐同刚
武汉工程大学材料科学与工程学院,湖北 武汉 430205
Author(s):
WEI Yu LEI Hong HUANG Zhiliang* QI Tonggang
School of Materials and Engineering, Wuhan Institute of Technology, Wuhan 430205,China
关键词:
燃烧法磷酸铁锂电化学性能恒电流充放电循环技术 掺杂
Keywords:
combustion methodLiFePO4 electrochemical performance galvanostatic charge-discharge cycling technique dope
分类号:
O614
DOI:
10. 3969/j. issn. 1674?2869. 2017. 05. 008
文献标志码:
A
摘要:
采用燃烧法,在不通入惰性气体保护的环境下,合成了Mg2+ 、Zr4+掺杂的磷酸铁锂(LiFePO4)正极材料. 通过X射线衍射、傅立叶变换红外光谱、扫描电子显微镜、恒电流充放电循环技术,对材料的结构和电化学性能(放电性能、循环性能)进行表征. 结果表明,Mg2+ 、Zr4+的掺入没有改变材料的橄榄石型结构,但显著改善了材料的电化学性能,其中Zr4+掺杂的LiFePO4具有更高的放电比容量,在0.2 C放电倍率下最高达到143.4 mAh/g,且循环性能良好(经50次循环后放电比容量为126.3 mAh/g).
Abstract:
Mg2+or Zr4+doped lithium iron phosphates(LiFePO4) were synthesized via combustion method without inert gas,then they were characterized by X-ray diffraction,Fourier transform infrared spectroscopy and scanning electron microscopy,and their electrochemical performances including discharge performance and cycle performance were measured by galvanostatic charge-discharge cycling technique. The results indicated that Mg2+or Zr4+doped LiFePO4 still kept the structure of olivine but their electrochemical performances were greatly improved compared with the undoped LiFePO4. In addition,Zr4+ doped LiFePO4 exhibited the best discharge specific capacity of 143.4 mAh/g at 0.2 C discharge rate and the discharge specific capacity of it remained 126.3 mAh/g after 50 charge/discharge cycles,showing good cycle performance. .

参考文献/References:

[1] 刘洪权,郑田田,郭倩颖,等. 锂离子电池正极材料磷酸铁锂研究进展[J]. 稀有金属材料与工程,2012,41(4):748-752. LIU H Q,ZHENG T T,GUO Q Y,et al. Development of LiFePO4 as the cathode materials[J]. Rare Metal Materials & Engineering,2012,41(4):748-752. [2] 郑明森,刘善科,孙世刚,等. Cu2+掺杂LiFePO4的制备及其电化学性能[J]. 电化学,2008,14(1):1-5. ZHENG M S,LIU S K,SUN S G,et al. Cu doping LiFePO4 and its electrochemical performance[J]. Electrochemistry,2008,14(1):1-5. [3] CHENG W,WANG L,SUN Z,et al. Preparation and characterization of LiFePO4xLi3V2(PO4)3 composites by two-step solid-state reaction method for lithium-ion batteries[J]. Materials Letters,2017,198:172-175. [4] 倪江锋,周恒辉,陈继涛,等. 铬离子掺杂对LiFePO4电化学性能的影响[J]. 物理化学学报,2004,20(6):582-586. NI J F,ZHOU H H,CHEN J T,et al. Effect on the electrochemical performance of lithium iron phosphate by Cr3+ ion doping[J]. Acta Physico-Chimica Sinica,2004,20(6):582-586. [5]WAGEMAKER M,ELLIS B L,L?TZENKIR- CHENHECHT D,et al. Proof of supervalent doping in olivine LiFePO4[J]. Cheminform,2016,20(20):6313-6315. [6] 周勇华,方莹,李镇,等. 铁位掺杂对磷酸铁锂电化学性能的影响[J]. 无机盐工业,2014,46(3):75-78. ZHOU Y H,FANG Y,LI Z,et al. Effects on the electrochemical performance of LiFePO4 by doping at Fe site[J]. Inorganic Chemicals Industry,2014,46(3):75-78. [7] 康晓雪,于雪飞,杨占旭. LiFe(1-y)MgyPO4的制备及电化学性能研究[J]. 辽宁石油化工大学学报,2015,35(5):5-9. KANG X X,YU X F,YANG Z X. Synthesis and electrochemical properties of LiFe(1-y)MgyPO4[J]. Journal of Liaoning Shihua University,2015,35(5):5-9. [8] SHI W,HU X S,JIN C,et al. Effects of imbalanced currents on large-format LiFePO4/graphite batteries systems connected in parallel[J]. Journal of Power Sources,2016,313:198-204. [9] 何岗,权晓洁,张靖,等. 磷酸铁前驱体形貌对磷酸铁锂电化学性能的影响[J]. 人工晶体学报,2013,42(12):2548-2555. HE G,QUAN X J,ZHANG J,et al. Effect of morphology of iron phosphate precursors on the electrochemical performance of lithium iron phosphate[J]. Journal of Synthetic Crystals,2013,42(12):2548-2555. [10] CHUNG S Y,BLOCKING J T,ANDERSSON A S,et al. Electronically conductive phospho-olivines as lithium storage electrodes[J]. Nature Materials,2015,1(2):123. [11] 李文昭,黄志良,陈常连,等. 过渡元素掺杂固体电解质的制备及电性能[J]. 武汉工程大学学报,2016, 38(4):350-356. LI W Z,HUANG Z L,CHEN C L,et al. Preparation of transition elements doped solid electrolyte and its electrical properties[J]. Journal of Wuhan Institute of Technology,2016,38(4):350-356. [12] 张佳峰,王健龙,陈核章,等. 复合金属掺杂的LiFePO4/C复合材料的制备与电化学性能研究[J]. 稀有金属材料与工程,2014,43 (1):172-177. ZHANG J F,WANG J L,CHEN H Z, et al. Preparation and characterization of LiFePO4/C composite doped with various metals[J]. Rare Metal Materials & Engineering,2014,43(1):172-177. [13] 徐科,申来法,米常焕,等. 石墨烯掺杂LiFePO4电极材料的合成及其电化学性能[J]. 物理化学学报,2012,28(1):105-110. XU K,SHEN L F,MI C H,et al. Synthesis and electrochemical performance of graphene modified LiFePO4 cathode materials[J]. Acta Physico-Chimica Sinica,2012,28(1):105-110. [14] 于鹏飞,靳云霞,吴春丹,等. LiFePO3.92F0.08/C的合成、表征和电化学性能[J]. 广东化工,2014,41(9):22-23. YU P F,JIN Y X,WU C D,et al. The Synthesis, characterization and electrochemical performances of LiFePO3.92F0.08/C composites[J]. Guangdong Chemical Industry,2014,41(9):22-23. [15] PATIMA N, ABLIZ Y, KIMINORI I. Synthesis and optical-electrochemical gas sensing applications of Ni-doped LiFePO4 nano-particles[J]. New Journal of Chemistry,2016,40(1):295-301.

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备注/Memo

备注/Memo:
 

收稿日期:2017-05-04

基金项目:国家自然科学基金(51374155);湖北省科技支撑计划( 2014BCB0342015BAA105);湖北省自然科学基金(2014CFB796);武汉工程大学研究生教育创新基金(CX2016005

作者简介:危 钰,硕士研究生. E-mail765731959@qq.com

更新日期/Last Update: 2017-10-25