Journal of Electrochemical Science and Technology

  • 제3권2호
  • /
  • Pages.63-67
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  • 2012
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  • 2093-8551(pISSN)
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  • 2288-9221(eISSN)
한국전기화학회 (The Korean Electrochemical Society)
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Electrochemical Properties and Thermal Stability of LiNi0.8Co0.15 Al0.05O2-LiFePO4 Mixed Cathode Materials for Lithium Secondary Batteries

  • Kim, Hyun-Ju (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Jin, Bong-Soo (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Doh, Chil-Hoon (Battery Research Center, Korea Electrotechnology Research Institute) ;
  • Kim, Hyun-Soo (Battery Research Center, Korea Electrotechnology Research Institute)
  • 투고 : 2012.05.08
  • 심사 : 2012.06.22
  • 발행 : 2012.06.30
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초록

We prepared various $LiNi_{0.8}Co_{0.15}Al_{0.05}O_2-LiFePO_4$ mixed-cathode electrodes by changing the content of $LiNi_{0.8}Co_{0.15}Al_{0.05}O_2$ and $LiFePO_4$ used, and we analyzed the electrochemical characteristics of the cathodes. We found that the reversible specific capacity of the cathodes increased and that the capacity retention ratios of the cathodes decreased during cycling as the content of $LiNi_{0.8}Co_{0.15}Al_{0.05}O_2$ increased. Conversely, we found that although the reversible specific capacity of the cathodes decreased because of the material composition, the cycle property of the cathodes increased when the $LiFePO_4$ content increased. We analyzed the thermal stability of the $LiNi_{0.8}Co_{0.15}Al_{0.05}O_2-LiFePO_4$ mixed-material cathodes by differential scanning calorimetry and found that it increased as the $LiFePO_4$ content increased.

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참고문헌

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피인용 문헌

  1. Future generations of cathode materials: an automotive industry perspective vol.3, pp.13, 2015, https://doi.org/10.1039/C5TA00361J