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Journal of Nanomaterials
Volume 2015 (2015), Article ID 970856, 7 pages
Research Article

Morphology Effect on Enhanced Li+-Ion Storage Performance for Ni2+/3+ and/or Co2+/3+ Doped LiMnPO4 Cathode Nanoparticles

1Advanced Battery Materials Research Group, Korea Research Institute of Chemical Technology, 141 Gajeongro, Yuseong, Daejeon 305-600, Republic of Korea
2Division of Materials Science and Engineering, Hanyang University, Seongdong-gu, Seoul 133-791, Republic of Korea
3Global Frontier R&D Center for Hybrid Interface Materials (HIM), Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 609-735, Republic of Korea
4School of Materials Science and Engineering, Pusan National University (PNU), Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 609-735, Republic of Korea

Received 24 August 2015; Accepted 4 November 2015

Academic Editor: Je M. Yun

Copyright © 2015 Young Jun Yun et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The electrochemical performance of Li(Mn, M)PO4 (M = Co2+/3+, Ni2+/3+) was investigated with regard to the particle morphology. Within a controlled chemical composition, Li(Mn0.92Co0.04Ni0.04)PO4, the resultant cathode exhibited somewhat spherical-shaped nanocrystalline particles and enhanced Li+-ion storage, which was even better than the undoped LiMnPO4, up to 16% in discharge capacity at 0.05 C. The outstanding electrochemical performance is attributed to the well-dispersed spherical-shaped particle morphology, which allows the fast Li+-ion migration during the electrochemical lithiation/delithiation process, especially at high current density.