본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Ceramics international v.43 no.6, 2017년, pp.5267 - 5273   SCI SCIE SCOPUS
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

SmPO4-coated Li1.2Mn0.54Ni0.13Co0.13O2 as a cathode material with enhanced cycling stability for lithium ion batteries

He, Lei (High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China ); Xu, Junmin (Department of Physics and Engineering and Key Laboratory of Material Physics, Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China ); Han, Tao (High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China ); Han, Hui (High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China ); Wang, Yongjian (High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China ); Yang, Jun (High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China ); Wang, Jingrong (High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China ); Zhu, Wenka (High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China ); Zhang, Changjin (High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China ); Zhang, Yuheng (High Magnetic );
  • 초록  

    Abstract SmPO 4 coated Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 cathode materials were prepared by the precipitation method and calcined at 450°C. The crystal structures and electrochemical properties of the pristine and coated samples are studied by X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, electron diffraction spectroscopy, galvanostatic cycling, cyclic voltammetry, and electrochemical impedance spectroscopy (EIS). It has been found that the electrochemical performances of the Li-rich cathode material have been substantially improved by SmPO 4 surface coating. Especially, the 2wt% SmPO 4 -coated sample demonstrates the best cycling performance, with capacity retention of 88.4% at 1C rate after 100 cycles, which is much better than that of 72.3% in the pristine sample. The improved electrochemical properties have been ascribed to the SmPO 4 coating layer, which not only stabilizes the cathode structure by decreasing the loss of oxygen, but also protects the Li-rich cathode material from side reaction with the electrolyte and increases the Li + migration rate at the cathode interface.


  • 주제어

    Lithium-rich cathode .   Surface coating .   SmPO4 .   High columbic efficiency .   Cycling stability .   Voltage fading.  

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기