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掺杂Mg的LiFePO_4电化学性能研究 被引量:10

Studies on electrochemical behavior of Mg-doped LiFePO_4
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摘要 通过高能球磨制备前驱体,采用煅烧法合成锂离子电池正极材料磷酸铁锂(LiFePO4),采用充放电性能测试、XRD表征材料性能。实验证明:LiFePO4具有3 45V(vs Li/Li+)的放电电压平台。在相同的工艺条件下合成掺杂和未掺杂镁的LiFePO4样品,测试了它们的电化学性能,掺杂少量Mg2+后的LiFePO4晶体结构并未发生变化,且较未掺杂的LiFePO4具有更好的电化学性能。 Li-ion battery cathode material lithium iron(Ⅱ) phosphate (LiFePO_4) was synthesized by calcining the precursor prepared by high energy ball milling. Charge-discharge test and XRD diffraction analysis were applied to test its performance. The results showed that active material had 3.45 V(vs.Li/Li^+) discharge flat voltage. The electrochemical characterizations of LiFePO_4 and Mg-doped LiFePO_4 in the same technical conditions were measured. The addition of small numbers of Mg^(2+) had no effect on the structure of lithium iron phosphate while the cathode material showed better electrochemical performance.
出处 《电池》 CAS CSCD 北大核心 2004年第5期344-345,共2页 Battery Bimonthly
关键词 锂离子电池 电池材料 磷酸铁锂 掺杂 Li-ion battery battery material lithium iron phosphate doped
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参考文献7

  • 1雷文,何涌.锂离子电池正极材料LiMn_2O_4的研究现状[J].电池,2002,32(1):48-51. 被引量:11
  • 2庄全超,武山,刘文元,陆兆达.理目弓因泅圆购圃穷因展[J].电池,2003,33(2):116-118. 被引量:20
  • 3Pier P P,Daniela Z,Manro P.Improved electrochemical performance of a LiFePO4-based composite cathode [J].Electrochimica Acta,2001,46(23):3 517-3 523.
  • 4Takahashi M,Tobishima S,Takei K,et al.Characterization of LiFePO4 as the cathode material for rechargeable lithium batteries[J].J Power Sources,2001,97-98:508-511.
  • 5Pier P P,Lisi M,Scaccia S,et al.Synthesis and characterization of amorphous of hydrated FePO4 and its electrode performance in lithium batteries[J].J Electrochem Soc,2002,149(3):A297-A301.
  • 6SU Mian-zeng(苏勉曾).固体化学导论[M].Beijing(北京):PekingUniversity Press(北京大学出版社),1987.23-27.
  • 7Barker J,Saidi M Y,Swoyer J L.Lithium iron( Ⅱ ).phosphorolivines prepared by a novel carbothermal reduction method[J].Electrochemical and Solid-State Letters,2003,6(3):A53-A55.

二级参考文献47

  • 1李春鸿.锂离子二次电池[J].电池,1996,26(6):288-290. 被引量:6
  • 2XU Zhong-yu(徐仲榆) SU Yu—chang(苏玉长) WANG Yao-wu(王要武) et a1.锂锰氧材料在充放电过程中的结构变化[J].E1ectrochemistry(电化学),2000,30(3):101-104.
  • 3TANG Zhi-yuan(唐致远) LI Jian-gang(李建刚) XUE Jian-jun(薛建军) et a1.锂电池正极材料LiMn2O2的改性与循环寿命[J].Chemistry Bu11etin(化学通报),2000,8:10-14.
  • 4MA Shu-hua(马树华) GUO Han-ju(国汗举) LI Ji(李季) et a1.锂离子电池负极碳材料的表面改性与修饰[J].E1ectrochemistry(电化学),1997,3(1):86-91.
  • 5Siapkas D I, Mitsas C L , Samaras I , et al. Synthesis and characterization of LiMn2O4 for use in Li-ion batteries[J]. J Power Souces, 1998, 72:22-26.
  • 6Hu X H, Ai X P, Yang H X, et al. A study of LiMn2O4 synthesized from Li2CO3 and MnCO3[J].J Power Sources, 1998, 74:240-243.
  • 7Hayashi N, Ikuta H, Wakihara M. Cathode of LiMgyMn2-yO4 and LiMgyMn2-yO4-δ spinel phases for lithium secondary batteries[J]. J Electrochem Soc, 1999, 146:1 351-1 354.
  • 8Atsuo Yamada, Kaoru Miura, KoichiroHinokuma, et al. Synthesis and structural aspects of LiMn2O4+δ as a cathode for rechargeable lithium batteries[J]. J Electrochem Soc, 1995, 142(7):2 149-2 156.
  • 9Choy J H, Kim D H, Kwon C W,et al. Physical and electrochemical characterization of nanocrystalline LiMn2O4 prepared by a modified citrate route[J], J Power Sources, 1999, 77:1-11.
  • 10Yang-Koor Sun, Dong-Won Kim ,Young-Min Choi. Synthesis and characterization of spinel LiMn2-xNixO4 for lithium/polymer battery application[J]. J Power Sources, 1999, 79:231-237.

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