水热还原法合成LiFePO_4及电化学性能研究

doi:10.61558/2993-074X.2063

电化学（中英文） ›› 2010, Vol. 16 ›› Issue (4): 416-419. doi: 10.61558/2993-074X.2063

水热还原法合成LiFePO_4及电化学性能研究

邹红丽;张光辉;沈培康;

中山大学光电材料与技术国家重点实验室物理科学与工程技术学院;

收稿日期:2010-11-28 修回日期:2010-11-28 出版日期:2010-11-28 发布日期:2010-11-28

Hydrothermal Reduction Synthesis of LiFePO_4 and Its Electrochemical Performance

ZOU Hong-li,ZHANG Guang-hui,SHEN Pei-kang

(The State Key Laboratory of Optoelectronic Materials and Technologies,School of Physics and Engineering,Sun Yat-Sen University,Guangzhou 510275,China

Received:2010-11-28 Revised:2010-11-28 Published:2010-11-28 Online:2010-11-28

摘要/Abstract

摘要： 以可溶性三价铁盐FeCl3为铁源,Fe粉作还原剂,应用水热还原法合成LiFePO4.XRD、红外光谱及SEM形貌表征表明,在水热条件下,铁粉能完全将三价铁还原为二价铁,得到单一相LiFePO4,且其颗粒团聚形成花簇状;而LiFePO4经过葡萄糖的热解包覆碳生成LiFePO4/C后,颗粒转变似球状.电化学性能测试结果表明,虽然单相LiFePO4的放电容量很低,但LiFePO4/C却表现出良好的倍率性能和循环稳定性.

关键词: FeCl3, Fe, 水热还原法, LiFePO4

Abstract: The cathode materials of LiFePO4 were prepared via a hydrothermal reduction method using FeCl3 as Fe source and iron as a reducing agent.The results showed that ferric salt could be reduced to ferrous salt completely under the hydrothermal condition and pure-phase LiFePO4 was obtained based on the test results of XRD and FTIR.Carbon-coated LiFePO4 was synthesized by pyrolysisng glucose at high temperature.The morphologies of pure LiFePO4 displayed cluster-like while the LiFePO4/C displayed sphere-like particles.The electrochemical test showed that the LiFePO4/C had good rate performance,while LiFePO4 delivered much lower discharge capacity.

Key words: FeCl3, Fe, hydrothermal reduction, LiFePO4

中图分类号:

O614.111

邹红丽, 张光辉, 沈培康, . 水热还原法合成LiFePO_4及电化学性能研究[J]. 电化学（中英文）, 2010, 16(4): 416-419.

ZOU Hong-li, ZHANG Guang-hui, SHEN Pei-kang. Hydrothermal Reduction Synthesis of LiFePO_4 and Its Electrochemical Performance[J]. Journal of Electrochemistry, 2010, 16(4): 416-419.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.2063

https://electrochem.xmu.edu.cn/CN/Y2010/V16/I4/416

参考文献

[1]Padhi A K,Nanjundaswamy K S,Goodenough J B.Phos-pho-olivines as positive electrode materials for recharge-able lithium batteries[J].J Electrochem Soc,1997,144(4):1188-1194. [2]Stanley Whittingham M.Lithium batteries and cathodematerials[J].Chem Rev,2004,104:4271-4301. [3]Yang S,Zavalij P Y,Whittingham M S.Hydrothermalsynthesis of lithium iron phosphate cathodes[J].Elec-trochem Commun,2001,1:505-508. [4]Tajimi S,Ikeda Y,Uematsu K,et al.Enhanced electro-chemical performance of LiFePO4prepared by hydro-thermal reaction[J].Solid State Ionics,2004,175(14):287-290. [5]Meligrana G,Gerbaldi C,Tuel A,et al.Hydrothermalsynthesis of high surface LiFePO4powders as cathode forLi-ion cells[J].J Power Sources,2006,160:516-522. [6]Nakano H,Dokko K,Koizumi S,et al.Hydrothermal syn-thesis of carbon-coated LiFePO4and its application tolithium polymer battery[J].J Eletrochem Society,2008,155(12):A909-A914. [7]Zhang C H,Huang X,Yin Y S,et al.Hydrothermal syn-thesis ofmonodispersed LiFePO4cathodematerials in al-cohol-water mixed solutions[J].Ceramics Internat,2009,35:2979-2982. [8]Wang Si-min(王思敏),Zheng Ming-sen(郑明森),Dong Quan-feng(董全峰).The hydrothermal synthesisof nanoscale LiFePO4and its electrochemical perform-ance[J].Electrochemistry(电化学),2008,14(4):365-368. [9]Li Hui-lin(李会林),Zhan Hui(詹晖),Zhou Yu-hong(周运鸿).The influence of PVA as disperser on LiFe-PO4synthesized by hydrothermal reaction[J].Electro-chemistry(电化学),2006,12(3):262-265. [10]Jin E M,Jin B,Jun D K.A study on the electrochemi-cal characteristics of LiFePO4cathode for lithium poly-mer batteries by hydrothermal method[J].J PowerSources,2008,178:801-806. [11]Liu J L,Jiang R R,Wang X Y.The defect chemistry ofLiFePO4prepared by hydrothermal method at differentpHvalues[J].J Power Sources,2009,194:536-540. [12]Chen J J,Whittingham M S.Hydrothermal synthesis oflithium iron phosphate[J].Electrochem Commun,2006,8:855-858. [13]Jin E M,Jin B,Jun D K.A study on the electrochemi-cal characteristics of LiFePO4cathode for lithium poly-mer batteries by hydrothermal method[J].J PowerSources,2008,178:801-806. [14]Bai Ying(白莹),Wu Feng(吴锋),Wu Chuan(吴川).Spectroscopic and electrochemical studies on no-vel cathode materials LiMPO4(M=Fe,Mn)for lithiumion batteries[J].Chinese Journal of Light Scattering(光散射学报),2004,15(4):231-236. [15]Burba C M,Frech R.Raman and FTIR spectroscopicstudy of LixFePO4(0≤x≤1)[J].J Eectrochem Soc,2004,151(7):A1032-A1038. [16]Chen Z Y,Zhu H L,Ji S,et al.Influence of carbonsources on electrochemical performance of LiFePO4/Ccomposites[J].Solid State Ionics,2008,179:1810-1815.

水热还原法合成LiFePO_4及电化学性能研究

Hydrothermal Reduction Synthesis of LiFePO_4 and Its Electrochemical Performance

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

[1]	丁明宇, 蒋文杰, 余天琦, 卓小燕, 覃晓静, 尹诗斌. CeO₂电子调控FeNi纳米片大电流密度电解水催化剂[J]. 电化学（中英文）, 2023, 29(5): 2208121-.
[2]	罗大娟, 刘冰倩, 覃蒙颜, 高荣, 苏丽霞, 苏永欢. 基于Au/rGO/FeOOH的新型电化学传感器一步检测亚硝酸盐[J]. 电化学（中英文）, 2022, 28(8): 2110191-.
[3]	应方, 许珊珊, 许燕冰, 梁苗苗, 李剑锋. Fe₃O₄磁性纳米颗粒催化电化学降解土霉素的研究[J]. 电化学（中英文）, 2022, 28(4): 2107141-.
[4]	Jafar Hussain Shah, 谢起贤, 匡智崇, 格日乐, 周雯慧, 刘朵绒, Alexandre I. Rykov, 李旭宁, 罗景山, 王军虎. 原位 ⁵⁷Fe穆斯堡尔光谱技术及其在Ni-Fe基析氧反应电催化剂中的应用[J]. 电化学（中英文）, 2022, 28(3): 2108541-.
[5]	林华, 吴艺津, 李君涛, 周尧. 一锅法制备Fe₂O₃@Fe-N-C氧还原电催化剂及其锌-空气电池的性能研究[J]. 电化学（中英文）, 2021, 27(4): 366-376.
[6]	杨智, 沈亚云, 周娥, 魏成玲, 秦好丽, 田娟. 前驱体中N含量对FeN/C催化剂氧还原活性的影响研究[J]. 电化学（中英文）, 2020, 26(1): 130-135.
[7]	方亚辉, 刘智攀. 固液界面双电层的理论计算模拟[J]. 电化学（中英文）, 2020, 26(1): 32-40.
[8]	张思宇，王会娟，李书芳，屈建莹. 基于碳复合Fe₃O₄纳米粒子的过氧化氢电化学传感器研究[J]. 电化学（中英文）, 2018, 24(3): 279-284.
[9]	邓昕，陈亨权，胡野，和庆钢. Fe-N-C 类催化剂在碱性燃料电池中的研究进展[J]. 电化学（中英文）, 2018, 24(3): 235-245.
[10]	胡霞，申有名，沈广宇. 基于铁氰化钾电子媒介体及醛基吡啶盐的电化学免疫传感器[J]. 电化学（中英文）, 2018, 24(2): 154-159.
[11]	胡燚，何湘柱, 邓忠德，孔令涌，尚伟丽. 锂离子电池正极材料LiNi _0.5Co_0.2Mn _0.3O₂和LiNi_0.5Co _0.2Mn _0.3O₂/LiFePO₄容量衰减原因分析[J]. 电化学（中英文）, 2017, 23(6): 675-683.
[12]	邹涛,易清风,张媛媛,刘小平,徐国荣,聂会东,周秀林. Pd/Fe₃O₄-C催化剂对甲醇、乙醇和丙醇氧化的电催化活性[J]. 电化学（中英文）, 2017, 23(6): 708-717.
[13]	秦建新，林峰，刘文平，陈超，任孟德. 酸性溶液中Fe²⁺ /Fe³⁺相互转换对电极还原行为的影响[J]. 电化学（中英文）, 2017, 23(6): 702-707.
[14]	陈驰，赖愉姣，周志有，张新胜，孙世刚. Fe/N/C氧还原催化剂的热稳定性及活性位结构[J]. 电化学（中英文）, 2017, 23(4): 400-408.
[15]	王祖华，钮东方，李辉成，杜荣斌，徐衡，张新胜. Sn掺杂对氧空位型α-Fe₂O₃纳米颗粒光解水性能的影响[J]. 电化学（中英文）, 2017, 23(1): 21-27.