Novel Synthesis of Plate-like LiFePO4 by Hydrothermal Method

Novel Synthesis of Plate-like LiFePO4 by Hydrothermal Method

Yi-Jie Gu* Chang-Jiao Li Long Cheng Peng-Gong Lv Fu-Jie Fu Hong-Quan Liu Jian-Xu Ding* Yan-Ming Wang Yun-Bo Chen Hai-Feng Wang Shun-Wei Fan

College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, China

Henan ZhongPingHanBo New Energy Co., Ltd., Pingdingshan 467000, China

Advanced Manufacture Technology Center, China Academy of Machinery Science and Technology, Beijing 100044, China

Rizhao Huaxian New Energy Co., Ltd., Rizhao 276826, China

Corresponding Author Email:,
01 October 2015
09 December 2015
08 February 2016
| Citation



Lithium iron phosphate (LiFePO4) was prepared by hydrothermal synthesis method using FeSO4·7H2O and LiH2POas resource of Li and Fe. The ratio of Li: Fe was maintained 1:1. The results suggested that pH value played a crucial role in the synthesis of LiFePO4, especially for the generation of impurities. We found that adding citric acid to the precursor was an effective way for chelating ferrous ions, thereby preventing the undesirable iron compounds during hydrothermal treatment. The particle morphology and the crystal orientation of the prepared LiFePO4 particles were investigated by the XRD and SEM results. The X-ray diffraction pattern of the samples indicated that single-phase LiFePO4 were successfully synthesized by hydrothermal method with a stoichiometric 1:1 ratio of Li :Fe.


hydrothermal synthesis, single phase LiFePO4, citric acid

1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
5. Acknowledgements

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