|本期目录/Table of Contents|

[1]丁一刚,李鹏涛,刘 东,等.磷酸铁的湿法磷酸制备及其对合成的磷酸铁锂性能的影响[J].武汉工程大学学报,2014,(01):1-4.[doi:10. 3969/j. issn. 1674-2869. 2014. 01. 001]
 DING Yi-gang,LI Peng-tao,LIU Dong,et al.Wet-process phosphoric acid for preparation of iron phosphate and its influence on performance of lithium iron phosphate synthesis[J].Journal of Wuhan Institute of Technology,2014,(01):1-4.[doi:10. 3969/j. issn. 1674-2869. 2014. 01. 001]
点击复制

磷酸铁的湿法磷酸制备及其对合成的磷酸铁锂性能的影响(/HTML)
分享到:

《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2014年01期
页码:
1-4
栏目:
化学与化学工程
出版日期:
2014-01-31

文章信息/Info

Title:
Wet-process phosphoric acid for preparation of iron phosphate and its influence on performance of lithium iron phosphate synthesis
作者:
丁一刚123李鹏涛123刘 东123梁 蕾4龙秉文123邓伏礼123戢 峻123刘生鹏123杨昌炎123
1. 武汉工程大学化工与制药学院,湖北 武汉 430074;2. 绿色化工过程教育部重点实验室(武汉工程大学),湖北 武汉 430074;3. 湖北省新型反应器与绿色化学工艺重点实验室,湖北 武汉 430074;4. 湖北祥云(集团)化工股份有限公司,湖北 武穴 435405
Author(s):
DING Yi-gang1 LI Peng-tao1 LIU Dong1 LIANG Lei1 LONG Bing-wen1 DENG Fu-li1 JI Jun1 LIU Sheng-peng1 YANG Chang-yan1
1. School of Chemical Engineering & Pharmacy,Wuhan Institute of Technology,Wuhan 430074,China;2. Key Laboratory for Green Chemical Process of Ministry of Education,Wuhan Institute of Technology,Wuhan 430074,China;3. Hubei Key Lab of Novel Reactor & Green Chemical Technology,Wuhan Institute of Technology,Wuhan 430074,China;4. Hubei Xiangyun (Group) Chemical Co. , Ltd. ,Wuxue 435405,China
关键词:
湿法磷酸磷酸铁磷酸铁锂电化学性能
Keywords:
wet-process phosphoric acid iron phosphate lithium iron phosphate electrochemistry properties
分类号:
TQ126.3+5
DOI:
10. 3969/j. issn. 1674-2869. 2014. 01. 001
文献标志码:
A
摘要:
以湿法磷酸和硫酸亚铁分别为磷源和铁源,通过合成、沉淀过程制备磷酸铁,研究了不同摩尔投料比对合成磷酸铁质量的影响,并以制备的磷酸铁为磷源和铁源采用溶胶凝胶法制备了磷酸铁锂材料. 采用了X射线衍射、扫描电子显微镜等手段对合成的磷酸铁锂材料结构和微观形貌进行表征,同时考察了其电化学性能. 结果表明:在湿法磷酸和硫酸亚铁摩尔比为1∶1时合成出的磷酸铁中磷质量分数为16.38%,铁质量分数为29.30%,得到的产物最为接近二水磷酸铁;用该磷酸铁制备的磷酸铁锂正极材料在0.1C倍率下充放电,其首次放电比容量达144.4 mAh/g,40次充放电循环后放电容量能达到141.6 mAh/g,衰减率为1.94%,循环倍率性能优良.
Abstract:
Iron phosphate was prepared using wet-process phosphoric acid as phosphorus source and ferrous sulfate as iron source through the synthesis and precipitation process. The influence of different molar weight ratio on the quality of synthetic iron phosphate was studied, and lithium iron phosphate anode material prepared using iron phosphate as the phosphorus source and iron source through the method of sor-gel. Structure and microstructure of the lithium iron phosphate material were characterized by X-ray diffraction and scanning electron microscope, and its electrochemical properties also were investigated. The results show that the phosphorus content of the prepared iron phosphate is 16.38% and iron content is 29.30% when the molar ratio of wet-process phosphoric acid and ferrous sulfate is 1∶1, the product closing to two water’s iron phosphate. The lithium iron phosphate anode material prepared using the iron phosphate was charged-discharged under 0.1C ratio,its first specific discharge capacity reaching up to 144.4 mAh/g. Finally the discharge capacity reaches to 141.6 mAh/g. and the attenuation rate is 1.94% after 40 times charge-discharge cycle, which demonstrates a excellent performance circulating rate.

参考文献/References:

[1] Padhi A K, Nanjundaswamy K S, Goodenough J B. Phospho?olivines as positive?electrode materials for rechargeable lithium batteries [J]. J Electrochem Soc, 1997, 144(4): 1188-1194. [2] 李传玲,康雪雅,吐尔迪,等. 前驱体pH值对LiFePO4形貌和电化学性能的影响[J]. 材料与结构,2011,48(8):499-528. LI Chuan?ling,KANG Xue?ya,TU Er?di,et al. Precursor effect of pH values on the morphology and electrochemical properties of LiFePO4[J]. Materials and Structures, 2011,48(8):499-528. (in Chinese)[3] 陈亦可,冈田重人,山木准一,等. FePO4的制备及其在锂电池中的应用[J]. 华侨大学学报:自然科学版,2002,23(4):407-411. ZHANG Yi?ke, GANG Tian Z R, SHAN Mu W Y, et al. Preparation of FePO4 and its application in lithium?ion batteries[J]. Journal of Huaqiao University: Natural Science, 2002,23(4):407-411. (in Chinese)[4] ZHAO B, JIANG Y, ZHANG H J, et al. Morphology and electrical properties of carbon coated LiFePO4 cathode materials[J]. Journal of Power Sources, 2009, 189(1):462-466. [5] SON D,EUNJUN K,KIM T,et al. Nanoparticle iron?phosphate anode material for Li ion battery[J]. Applied Physics Letters, 2004,85(24):5875-5877. [6] 彭爱国,贺周初,余长艳,等. 电池级超微细磷酸铁的制备[J]. 武汉工程大学学报,2013,35(7):1-5. PENG Ai?guo, HE Zhou?chu,YU Chang?yan, et al. Preparation of Battery?grade Ultra Fne Iron Phosphates[J]. J Wuhan Inst Tech,2013,35(7):1?5.(in Chinese)[7] 沈琼璐,李鹏涛,丁一刚,等. 溶胶-凝胶法合成磷酸铁锂正极材料[J]. 化工新型材料,2013,41(5):68-70. SHEN Qing?lu, LI Peng?tao, DING Yi?gang, et al. Preparation of lithium iron phosphate anode material by sol?gel technique[J]. New Chemical Materials,2013,41(5):68-70. (in Chinese)[8] 易均辉. 磷酸铁和磷酸铁锂的制备、表征及电化学性能研究[D]. 南宁:广西大学,2010. YI Yun?hui, Study on preparation, characterization and electrochemical properties of iron phosphate and lithium iron phosphate[D]. Nanning:Guangxi University,2010. (in Chinese)[9] 吴锋,吴川. 新型锂离子电池正极材料LiMP04 (M=Fe,Mn)的谱学和电化学研究[J]. 光散射学报,2004, 15(4): 231-236. WU Feng, WU Chuan. Lithium ion battery cathode material LiMP04 (M=Fe, Mn) spectroscopic and Electrochemical Studies[J]. Chinese Journal of Light Scattering, 2004, 15(4): 231-236. (in Chinese)

相似文献/References:

[1]熊祥祖,王威,李志保,等.离子交换树脂脱除湿法磷酸中金属杂质的研究[J].武汉工程大学学报,2009,(07):26.
 XIONG Xiang zu,WANG Wei,LI Zhi bao,et al.Research on the removal of metal impurities from WetProcess Phosphoric Acid with duolite[J].Journal of Wuhan Institute of Technology,2009,(01):26.
[2]余莹,鄢笑非,周红,等.中低品位磷矿生产工业级磷酸二铵的工艺研究[J].武汉工程大学学报,2008,(04):5.
 YU Ying,YAN Xiao fei,ZHOU Hong,et al.Production of industrial diammonium phosphatewith midlowgrade phosphate rock[J].Journal of Wuhan Institute of Technology,2008,(01):5.
[3]乐武阳,丁一刚*,李攀,等.复合萃取剂萃取湿法磷酸相平衡和动力学研究[J].武汉工程大学学报,2011,(02):31.[doi:10.3969/j.issn.16742869.2011.02.008]
 YUE Wu yang,DING Yi gang,LI Pan,et al.Study on phase equilibrium and kinetics of extraction ofWetprocess Phosphoric Acid by composite extractant[J].Journal of Wuhan Institute of Technology,2011,(01):31.[doi:10.3969/j.issn.16742869.2011.02.008]
[4]熊祥祖,徐彪,王威,等.大孔阳离子树脂脱除湿法磷酸中阳离子的研究[J].武汉工程大学学报,2011,(03):36.[doi:10.3969/j.issn.16742869.2011.03.010]
 XIONG Xiang zu,XU Biao,WANG Wei,et al.Research on removal of metal impurities from wetprocess phosphoric acid with macroporous strong acid cation exchange resin [J].Journal of Wuhan Institute of Technology,2011,(01):36.[doi:10.3969/j.issn.16742869.2011.03.010]
[5]夏云,丁一刚*,王超,等.低水溶性萃取剂对湿法磷酸的萃取净化工艺[J].武汉工程大学学报,2011,(11):7.
 XIA Yun,DING Yi gang,WANG Chao,et al.Lowwatersoluble extractant for extraction of WPA purification process[J].Journal of Wuhan Institute of Technology,2011,(01):7.
[6]周晶晶,姜振胜,李玲.有机溶剂在湿法磷酸脱色中的应用[J].武汉工程大学学报,2012,(3):11.
 ZHOU Jing\|jing,JIANG Zhen\|sheng,LI Ling.Application of organic solvent in decoloration of wet\|process phosphoric acid[J].Journal of Wuhan Institute of Technology,2012,(01):11.
[7]姜振胜,李玲,佟宏宇.湿法磷酸过滤脱色扩大性试验[J].武汉工程大学学报,2013,(04):82.[doi:103969/jissn 16742869201304018]
 JIANG Zhen sheng,LI Ling,TONG Hong yu.Expanding research of filtration and decolorization of wet process phosphoric acid[J].Journal of Wuhan Institute of Technology,2013,(01):82.[doi:103969/jissn 16742869201304018]
[8]彭爱国,贺周初,余长艳,等.电池级超微细磷酸铁的制备[J].武汉工程大学学报,2013,(07):1.[doi:103969/jissn16742869201307001]
 PENG Ai guo,HE Zhou chu,YU Chang yan,et al.Preparation of batterygrade ultra fine iron phosphates[J].Journal of Wuhan Institute of Technology,2013,(01):1.[doi:103969/jissn16742869201307001]
[9]丁一刚1,2,3,等.二氧化硅对湿法磷酸中液相氟的脱除[J].武汉工程大学学报,2015,37(06):5.[doi:10. 3969/j. issn. 1674-2869. 2015. 06. 002]
 ,,et al.Effect of silica on defluorination of wet process phosphoric acid[J].Journal of Wuhan Institute of Technology,2015,37(01):5.[doi:10. 3969/j. issn. 1674-2869. 2015. 06. 002]

备注/Memo

备注/Memo:
收稿日期:2013-12-08基金项目:煤转化与新型炭材料湖北省重点实验室项目(2009WKDM05)作者简介:丁一刚(1963-),男,湖北黄冈人,教授,博士,博士研究生导师. 研究方向:化学工程与技术.
更新日期/Last Update: 2014-02-24