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[1]吴林君,张家新,管道安,等.水热法制备高密度超细磷酸铁锂多晶粉[J].武汉工程大学学报,2012,(9):26-29,33.[doi:103969/jissn16742869201209007]
　WU Lin jun,ZHANG Jia xin,GUAN Dan an,et al.Hydrothermal synthesis of ultrafine lithium iron phosphate powders with high tap densities[J].Journal of Wuhan Institute of Technology,2012,(9):26-29,33.[doi:103969/jissn16742869201209007]
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水热法制备高密度超细磷酸铁锂多晶粉(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年9期
页码:
26-29,33
栏目:
资源与土木工程
出版日期:
2012-10-10

文章信息/Info

Title:
Hydrothermal synthesis of ultrafine lithium iron phosphate
powders with high tap densities
文章编号:
16742869(2012)09002604
作者:
吴林君1; 张家新1; 管道安1; 李婕2; 钱琼丽2
.1.中国船舶重工集团公司第712研究所，湖北 武汉430064;
2.武汉工程大学材料科学与工程学院，湖北 武汉430074
Author(s):
WU Linjun1;  ZHANG Jiaxin1;  GUAN Danan1;  LI Jie2;  QIAN Qiongli2
1. 712th Research Institute of CSIC, Wuhan 430064, China;
2. School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China
关键词:
磷酸铁锂; 磷酸亚铁铵; 水热法; 正极材料
Keywords:
lithium iron phosphate;  ferrous ammonium phosphate;  hydrothermal synthesis;  positive materials
分类号:
O614.111
DOI:
103969/jissn16742869201209007
文献标志码:
A
摘要:
分别采用两种不同锂盐与自制的磷酸亚铁铵（NH4FePO4·H2O）反应，通过水热法制备了高密度超细磷酸铁锂（LiFePO4）多晶粉，使用X射线衍射（XRD）、红外光谱（FTIR）和扫描电子显微镜（SEM）表征了磷酸亚铁铵和磷酸铁锂多晶粉，磷酸铁锂晶粒分别呈立方状和六方柱状，粒径约为0.2和0.3 μm，振实密度都在1.70 g/cm3以上，采用0.1C进行充放电，比容量分别达到144.8 mA·h/g和142.3 mA·h/g，并且具有较好的循环性能.
Abstract:
Polycrystalline lithium iron phosphate (LiFePO4) powders with high tap densities were prepared by hydrothermal method using selfmade ferrous ammonium phosphate (NH4FePO4·H2O) and lithium salts. The phosphates were characterized by Xray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM).The results show that the resulted lithium iron phosphate crystallites have cubic and bar shapes with average sizes of about 0.2 and 0.3 μm respectively, tap densities are above 1.70 g/cm3. The products exhibit high reversible specific capacities of 144.8 mA·h/g and 142.3 mA·h/g respectively at 0.1C with excellent cycling performance．

参考文献/References:

［1］Prosini P P, Carewska M, Silvera S, et al. A new synthesis route for preparing LiFePO4 with enhanced electrochemical performance\[J\]. J Electrochem Soc, 2002, 149(7): 886890.
［2］李会林,詹晖,周运鸿.分散剂PVA对水热反应制备LiFePO4性能的影响\[J\].电化学, 2006, 12(3): 262265.
［3］Shoufeng Yang, Peter Y. Hydrothermal synthesis of lithium iron phosphate cathodes\[J\]. Electrochem Commu, 200l（3）:505508.
［4］Arnold G, Garche J, Hemmer R， et al. Fineparticle lithium iron phosphate LiFePO4 synthesized by a new lowcost aqueous precipitation technique \[J\]. J Power Sources, 2003, 119121: 247251.
［5］张静, 刘素琴, 黄可龙, 等. LiFePO4:水热合成及性能研究\[J\].无机化学学报, 2005, 21:433434.
［6］Prosini P P, Carewska M, Silvera S, et a1. Longterm cyclability of nanostructured LiFePO4 \[J\]. Electrochemical Acta. 2003, 48:42054211.
［7］庄大高, 赵新兵, 曹高劭,等. 水热法合成LiFePO4的形貌和反应机理 \[J\]. 中国有色金属学报, 2005, 15:20342035.
［8］Yang Shuting, Zhao Nahong, Dong Hongyu, et al. PAM templating mechanism for synthesis of a novel LiFePO4 cathode material \[J\]. Chem Res Chinese U, 2005, 21:312.
［9］张自禄, 卢嘉春, 黄萍,等. FTIR研究LiFePO4的充放电过程 \[J\].分析测试学报, 2006, 25:9192.

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备注/Memo

备注/Memo:
收稿日期：20120731作者简介：吴林君（1979），女，湖北荆州人，工程师.研究方向：化学工程与工艺.
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