A Simple Hydrothermal Process Based on FePO4•2H2O to Synthesize Spherical LiFePO4/C Cathode Material

Wen Qin Wang; Jun Jie Hao; Zhi Meng Guo; Qing Ye

doi:10.4028/www.scientific.net/AMR.476-478.1837

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 476-478A Simple Hydrothermal Process Based on FePO4•2H2O...

A Simple Hydrothermal Process Based on FePO₄•2H₂O to Synthesize Spherical LiFePO₄/C Cathode Material

Abstract:

LiFePO₄/C cathode material with particle size of 5~6 μm and tap density of 1.67 g•cm-3 was prepared based on spherical crystal FePO₄•2H₂O powders. The spherical crystal FePO₄•2H₂O powders were first prepared by a simple hydrothermal synthesis via the amorphous FePO₄•2H₂O solution maintained at 150°C for 12 h without any supplementary equipment. The produced LiFePO4/C powders exhibited the initial discharge capacity of 137 and 118 mAh•g-1 at 0.1 C and 0.5 C, respectively. The volumetric capacity of the spherical LiFePO₄/C powders corresponded to 230 and 197 mAh•cm-3, which are remarkably higher than irregularity powders. The high-density spherical LiFePO₄/C powders produced by this novel method can be considered as a very promising candidate in the high-power batteries.

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Periodical:

Advanced Materials Research (Volumes 476-478)

Pages:

1837-1840

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.1837

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Online since:

February 2012

Authors:

Wen Qin Wang, Jun Jie Hao, Zhi Meng Guo, Qing Ye

Keywords:

Cathode Material, FePO₄•2H₂O, Hydrothermal Synthesis, LiFePO₄/C, Spherical

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