Novel precursor of Mn(PO3(OH))·3H2O for synthesizing LiMn0.5Fe0.5PO4 cathode material

Jun Zong, Qingwen Peng, Jinpeng Yu, Xingjiang Liu*


研究成果: Article査読

26 被引用数 (Scopus)


A brand new method for synthesizing Mn(PO3(OH))·3H 2O is attained in this paper. During this process, pure flake-like Mn(PO3(OH))·3H2O precipitate is prepared using C2H5OH as initiator. Besides that, LiMn 0.5Fe0.5PO4/C is successfully synthesized from the Mn(PO3(OH))·3H2O precursor at 650°C for the first time. Thermogravimetric analysis (TGA), X-ray diffraction (XRD) and scanning electron microscopy (SEM) are applied in the characterization of the Mn(PO3(OH))·3H2O precursor and LiMn 0.5Fe0.5PO4/C. High-resolution transmission electron microscopy (HRTEM) is also used to investigate the morphology of LiMn0.5Fe0.5PO4/C. X-ray photoelectron spectroscopy (XPS) and galvanostatic charge and discharge test are employed to characterize the Mn(PO3(OH))·3H2O precursor and LiMn0.5Fe0.5PO4 material, respectively. The as-prepared LiMn0.5Fe0.5PO4/C material exhibited a reversible capacity of 131 mAh g-1 at 0.05 C. It can be confirmed that the incorporation of Fe into LiMnPO4 can significantly improve the electrochemical properties for improving the conductivity of the material and facilitating the Li+ diffusion. In addition, a capacity of 120 mAh g-1 is still delivered at 0.05 C rate with a capacity retention of about 91% after 25 cycles, and reversible capacity can reach 105 mAh g-1 at 1 C.

ジャーナルJournal of Power Sources
出版ステータスPublished - 2013

ASJC Scopus subject areas

  • 電子工学および電気工学
  • エネルギー工学および電力技術
  • 再生可能エネルギー、持続可能性、環境
  • 物理化学および理論化学


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