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碳热还原合成钒掺杂的球形LiFePO_4/C

Vanadium-doped spherical LiFePO_4/C prepared by carbothermal reduction
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摘要 通过碳热还原，合成了不同钒掺杂量（x）的球形碳包覆磷酸铁锂（LiFePO4/C）材料LiFe1-xVxPO4/C。循环伏安和恒流充放电测试表明，适当的钒掺杂能改善材料的电化学性能。x＝0.05的材料，电化学性能较好，以0.1 C在2.5～4.2 V充放电，首次放电比容量为151.1 mAh/g，10.0 C倍率时，放电比容量仍能维持在104.4 mAh/g左右。 By carbothermal reduction,spherical carbon coated lithium iron phosphate（LiFePO4/C）materials with different vana-dium doping amount（x）LiFe1 -x VxPO4/C was prepared. Cyclic voltammetry and galvanostatic charge-discharge tests showed that proper vanadium doping could improve the electrochemical performance of the material. The material which x=0.05 had better electrochemical performance,when charged-discharged in 2.5 ~4.2 V at 0.1 C,the initial specific discharge capacity was 15 1.1 mAh/g,the specific discharge capacity could maintain at about 104.4mAh/g at 10.0 C rate.
作者 陈少辉 杜春雨 卢文斌 熊凯
机构地区 深圳市计量质量检测研究院 哈尔滨工业大学化工学院
出处 《电池》 CAS CSCD 北大核心 2014年第1期28-30,共3页 Battery Bimonthly
关键词 碳包覆磷酸铁锂(LiFePO4 C) 球形 钒掺杂 电化学性能 carbon coated lithium iron phosphate（LiFePO4/C） spherical vanadium doping electrochemical performance
分类号 TM912.9 [电气工程—电力电子与电力传动]
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参考文献5

  • 1张新龙,胡国荣,彭忠东,廖刚,禹筱元.锂离子电池正极材料LiFePO_4的研究进展[J].电池,2003,33(4):252-254. 被引量：26
  • 2Xie H, Wang R, Ying Jet al. Optimized LiFePO4-polyacene cathode material for lithium-ion batteries [ J ]. Adv Mater, 2006, 18(19) :2 609 -2 613.
  • 3Sun C S,Zhou Z,Xu Z G,et al. Improved high-rate charge/dis- charge performances of LiFePO4/C via V-doping [ J]. J Power Sources,2009,193 (2) : 841 - 845.
  • 4Ma J, Li B H, Du H D, et al. The effect of vanadium on physieo- chemical and electrochemical performances of LiFePO4 cathode for lithium battery[ J]. J Electrochem Soe,2011,158 ( 1 ) :26 - 32.
  • 5Yang M R, Ke W H, Wu S H. Improving electrochemical properties of lithium iron phosphate by addition of vanadium [ J ]. J Power Sources,2007,165 (2) :646 - 650.

二级参考文献28

  • 1..http://www.electrochem.org/meetings/satellite/imlb/ii/abstracts/piilmb11. htm.,.
  • 2Doeff M M, Finones R, Yaoqin H. Electrochemical performance of Sol-Gel synthesized LiFePO4 in lithium battery[A].11th International Meeting on Lithium Battery ( IMLB ) [ C ]. Monterey,CA, USA:2002.
  • 3Croce F, Epifanio A D, Hassoun J, et al. A novel concept for the synthesis of an improved LiFePO4 lithium battery cathode [ J ].Electrochem and Solid State Lett, 2002, 5(3) :A47 - AS0.
  • 4Tarescon J M, Armand M. Issues and challenses facing recbargeable lithium batteries[J]. Nature, 2001,414:359.
  • 5Croce F, Hassoun J, Persi L, et al. A high-rate, long-life lithium nanocomposite polymer electrolyte battery[ J ]. Electrochern and Solid-State Lett, 2001,4(8) : A121 - A123.
  • 6Prosini P P, Zane D, Pasquali M. Improved electrochemical performance of a LiFePO4-besed composite cathode[J]. Electrochimica Acta, 2001, 46(23):3 517-3 523.
  • 7Chung S Y, Blocking J T, Chiang Y M. Electronically conductive phospho-olivinas as lithium storage electrodes[J]. Nature Mater,2002, 2: 123-128.
  • 8Huang H, Yin S C, Nazar L F. Approaching theoretical capacity of LiFePO4 at room temperature at high rates[J].Electrochem andS olid State Lett, 2001,4(10) :A170 - A172.
  • 9Zhaohui C, Dahn J R. Reducin8 carbon in LiFePO4/C composite electrodes to maximize specific enersy, volumetric energy, and tap density[J]. J Electrochem Soc, 2002, 149(9) : A1 184- A1 189.
  • 10Thuckeray M. An unexpected conductor[J]. Nature Mater. 2002.2: 81-82.

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电池
2014年 第1期

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