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Preparation and Characterization of Spherical-like Ferric Phosphate Precursors by Co-precipitation—Spray-drying Method
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Xida LI1, 2, Lijun LIU1, 2, Zhonglin LI1, 2, Changmao LIAO1, 2, Yibing LI1, 2
Hydrometallurgy of China | 2024, 43(4) : 446 - 453
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Hydrometallurgy of China | 2024, 43(4): 446-453
• Experiment Research •
Preparation and Characterization of Spherical-like Ferric Phosphate Precursors by Co-precipitation—Spray-drying Method
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Xida LI1, 2, Lijun LIU1, 2, Zhonglin LI1, 2, Changmao LIAO1, 2, Yibing LI1, 2
Affiliations
  • 1 Department of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
  • 2 Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, Guilin University of Technology, Guilin 541004, China
Published: 2024-08-20 doi: 10.13355/j.cnki.sfyj.2024.04.014
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The preparation of spherical-like battery-grade ferric phosphate by co-precipitation—spray-drying method was investigated using ferrous sulfate heptahydrate (FeSO4·7H2O) and ammonium dihydrogen phosphate (NH4H2PO4) as raw materials. The effects of the addition of the surfactant cetyltrimethyl ammonium bromide (CTAB), reaction time, and solution pH on the physical phase and particle size of ferric phosphate were examined. The products were characterized by a laser particle sizer, X-ray powder diffractometer, thermogravimetric analyzer, and field emission scanning electron microscope. The results indicate that under the conditions of a Fe/P molar ratio of 1/1.01, CTAB addition of 0.04 g, reaction time of 1 h, and solution pH of 3.0, the ferric phosphate exhibits the smallest particle size distribution, ranging from 300 to 500 nm, and displays more uniform spherical morphology. Moreover, lithium iron phosphate is prepared by ball milling, mixing and sintering, using the spherical-like ferric phosphate as the precursor iron source. The specific discharge capacity of lithium iron phosphate is150.14 mAh/g at 0.1 C, and the retention rate is 98.9% after 200 cycles at 1 C, the performance is good.

ferric phosphate  /  co-precipitation method  /  spray-drying  /  spherical-like  /  lithium iron phosphate  /  lithium battery  /  preparation  /  performance
Xida LI, Lijun LIU, Zhonglin LI, Changmao LIAO, Yibing LI. Preparation and Characterization of Spherical-like Ferric Phosphate Precursors by Co-precipitation—Spray-drying Method[J]. Hydrometallurgy of China, 2024 , 43 (4) : 446 -453 . DOI: 10.13355/j.cnki.sfyj.2024.04.014
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Year 2024 volume 43 Issue 4
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doi: 10.13355/j.cnki.sfyj.2024.04.014
  • Receive Date：2024-04-02
  • Online Date：2025-09-10
  • Published：2024-08-20
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  • Received：2024-04-02
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    1 Department of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
    2 Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, Guilin University of Technology, Guilin 541004, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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