Journal of Solid State Electrochemistry

, Volume 14, Issue 4, pp 593–597 | Cite as

Effect of conducting additives on the properties of composite cathodes for lithium-ion batteries

  • Jong Hyeok Park
  • Sang-Young Lee
  • Jong Hun Kim
  • Soonho Ahn
  • Jae-Sung Park
  • Yeon Uk Jeong
Original Paper


In an attempt to achieve lithium-ion batteries with high rate capability, the effect of conducting additives with various shapes and contents on the physical and electrochemical performances was evaluated. Although the density of the cathode decreased upon the addition of the additives, the electrical conductivity and electrochemical performance were greatly improved. The composite cathodes with well-dispersed multi-walled carbon nanotubes (MWCNTs) exhibited excellent high rate capabilities and cyclabilities. In the case of cathode with 8 wt.% of MWCNTs (low density—LD), the highest discharge capacity of 136 mAh/g was obtained at 5 C-rate and capacity retention of 97% for 50 cycles was observed at 1 C-rate of discharge. The cathode with a mixture of 2 wt.% of Super P and 4 wt.% of MWCNTs (LD) also exhibits improved cycle performances. The volume changes in the charge and discharge processes were successfully controlled by the bundles distributed between the host particles.


Composite Cathode High Discharge Capacity High Rate Capability High Power Application High Density Sample 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The financial support for this research from LG Chem. in Korea is greatly acknowledged.


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Jong Hyeok Park
    • 1
  • Sang-Young Lee
    • 2
  • Jong Hun Kim
    • 3
  • Soonho Ahn
    • 3
  • Jae-Sung Park
    • 4
  • Yeon Uk Jeong
    • 5
  1. 1.Department of Chemical EngineeringSungkyunkwan UniversitySuwonSouth Korea
  2. 2.Department of Chemical EngineeringKangwon National UniversityChuncheonSouth Korea
  3. 3.Batteries Research & DevelopmentLG ChemTaejonSouth Korea
  4. 4.VITZROCELL Co., Ltd./R & D CenterYesanSouth Korea
  5. 5.School of Materials Science and EngineeringKyungpook National UniversityDaeguSouth Korea

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