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锂离子蓄电池正极材料LiFePO_4的合成研究 被引量:6

Preparation of LiFePO_4 as cathode material in Li-ion battery
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摘要 采用高温固相法合成锂离子蓄电池正极材料LiFePO4,研究了反应温度、时间对合成产物的影响。利用X射线衍射(XRD)、扫描电镜(SEM)对所得样品的晶体结构、表面形貌等进行分析研究。实验证明,反应温度和反应时间对产物结构和性能有较大影响,其中,650 ℃下焙烧20 h合成出的样品电性能最佳,以0.1 C充放电,首次放电容量为111.6 mAh/g。 The cathode material of LiFePO4 for lithium-ion battery was synthesized by high temperature solid-state reaction method. The effects of synthesis temperature, reaction time were discussed and the crystalline structure, morphology of particles of the samples were investigated by X-ray diffraction, scanning electromicroscope. The results showed that the reaction temperature and time influenced the structure and performance of the products. The products sintered at 650 ℃ for 20 h possessed excellent electrochemical performance. The first specific discharge capacity reached 111.6 mAh/g at 0.1 C rate.
出处 《电源技术》 CAS CSCD 北大核心 2004年第12期748-750,共3页 Chinese Journal of Power Sources
基金 国家自然科学基金资助项目(50302016)
关键词 锂离子蓄电池 正极材料 磷酸铁锂 合成 Li-ion battery cathode material lithium iron phosphate preparation
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  • 1PADHI A K, NANJUNDASWAMY K S, GOODENOUGH J B.Phospho-olivines as positive-electrode materials for rechargeable lithium batteries[J]. J Electrochem Soc, 1997, 144(4): 1 188-1 194.
  • 2RAVET N, GOODENOUGH J B, BESNER S, et al. The Electrochemical Society and The Electrochemical Society of Japan Meeting Abstracts[C]. Honolulu, HI: 1999.2: Abstracts 127.
  • 3TAKAHASHI 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.
  • 4YAMADA A, CHUNG S C, HINOKUMA K. Optimized LiFePO4 for lithium battery cathodes[J]. J Electrochem Soc, 2001, 148(3):A 224-A 229.
  • 5ANDERSSON A S, THOMAS J O. The source of first-cycle capacity loss in LiFePO4[J]. J Power Sources, 2001, 97-98: 498-502.
  • 6HUANG H, YIN S C, NAZAR L F. Approaching theoretical capacity of a LiFePO4 at room temperature at high rates[J]. Electrochem Solid-State Lett, 2001,4(10): A 170-A 172.
  • 7PROSINI P P, ZANE D, PASQUALI M. Improved electrochemical performance ofa LiFePO4-based composite cathode [J]. Electrochimica Acta, 2001, 46:3 517-3 523.
  • 8YAMADA A, KUDO Y, LIU K Y. Reaction mechanism of the olivine-type Lix(Mn0.6Fe0.4)PO4[J]. J Electrochem Soc, 2001, 148(7):A 747-A 754.
  • 9YAMADA A, CHUNG S C. Crystal chemistry of the olivine-type Li(MnyFe1-y)PO4and (MnyFe1-y)PO4 as possible 4V cathode materials for lithium batteries[J]. J Electrochem Soc, 2001, 148(8): A 960-967.
  • 10CHUNG S Y, BLOCKING J T, CHIANG Y M. Electronically conductive Phospho-olivinnes as lithium storage electrodes[J]. Nature Mater, 2002, 2: 123-128.

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