한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제37권2호
  • /
  • Pages.215-222
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  • 2024
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  • 1226-7945(pISSN)
  • /
  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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공침법을 통한 나노로드 형태의 니켈계 양극 소재 개발에 관한 연구

A Study on the Development of Nanorod-Type Ni-Rich Cathode Materials by Using Co-Precipitation Method

  • 박주혁 (계명대학교 화공신소재공학부 신소재공학전공)
  • Joohyuk Park (Department of Advanced Materials Engineering, Keimyung University)
  • 투고 : 2023.12.28
  • 심사 : 2024.01.08
  • 발행 : 2024.03.01
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초록

Ni-rich cathode materials have been developed as the most promising candidates for next-generation cathode materials for lithium-ion batteries because of their high capacity and energy density. In particular, the electrochemical performance of lithium-ion batteries could be enhanced by increasing the contents of nickel ion. However, there are still limitations, such as low structural stability, cation mixing, low capacity retention and poor rate capability. Herein, we have successfully developed the nanorod-type Ni-rich cathode materials by using co-precipitation method. Particularly, the nanorod-type primary particles of LiNi0.7Co0.15Mn0.15O2 could facilitate the electron transfer because of their longitudinal morphology. Moreover, there were holes at the center of secondary particles, resulting in high permeability of the electrolyte. Lithium-ion batteries using the prepared nanorod-type LiNi0.7Co0.15Mn0.15O2 achieved highly improved electrochemical performance with a superior rate capability during battery cycling.

키워드

과제정보

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF-2021R1F1A1045466).

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