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电化学  2010 

水热还原法合成LiFePO_4及电化学性能研究

, PP. 416-419

Keywords: FeCl3,Fe,水热还原法,LiFePO4

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Abstract:

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.

References

[1]  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.
[2]  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.
[3]  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.
[4]  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.
[5]  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.
[6]  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.
[7]  Chen J J,Whittingham M S.Hydrothermal synthesis oflithium iron phosphate[J].Electrochem Commun,2006,8:855-858.
[8]  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.
[9]  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.
[10]  Burba C M,Frech R.Raman and FTIR spectroscopicstudy of LixFePO4(0≤x≤1)[J].J Eectrochem Soc,2004,151(7):A1032-A1038.
[11]  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.
[12]  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.
[13]  Stanley Whittingham M.Lithium batteries and cathodematerials[J].Chem Rev,2004,104:4271-4301.
[14]  Yang S,Zavalij P Y,Whittingham M S.Hydrothermalsynthesis of lithium iron phosphate cathodes[J].Elec-trochem Commun,2001,1:505-508.
[15]  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.
[16]  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.

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