微波干燥在锂离子电池材料生产中的应用?
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摘要
介绍了微波干燥的原理、特点和设备组成,并与传统干燥技术相比较,研究和分析了微波干燥技术在锂离子电池材料生产中的优势。结果表明,经微波干燥处理后,锂离子电池材料的前驱体磁性异物引入量大大降低,分散性好且无团聚现象,与传统干燥前驱体的X射线衍射物相无明显差异,干燥效率提高,一次成品率显著提升。微波干燥技术成功解决了锂离子电池材料磁性异物引入量高、干燥不均匀、分散性差、易团聚等问题,有利于锂离子电池材料的工业化生产。
The principle, characteristics, and equipment of microwave drying were introduced in this paper. Compared with the traditional drying technology, the advantages of microwave drying used in the precursor preparation of lithium-ion battery materials were studied and analyzed. In the results, the content of magnetic foreign body by mass introduced into the precursor of lithium ion battery material dried by microwave is greatly reduced, the dispersibility is good, and there is no agglomeration phenomenon.Compared with the traditional drying technology, there is no significant difference in phase composition of precursor dried by microwave using X-ray diffraction. The drying efficiency is improved, and the primary yield is significantly increased. Problems in the production of lithium-ion battery materials can be solved by microwave drying technology, such as the introduction of magnetic foreign body, the nonuniform drying, the poor dispersibility, and the aggregation effect, which will benefit the industrial production of lithium-ion battery materials.
The principle, characteristics, and equipment of microwave drying were introduced in this paper. Compared with the traditional drying technology, the advantages of microwave drying used in the precursor preparation of lithium-ion battery materials were studied and analyzed. In the results, the content of magnetic foreign body by mass introduced into the precursor of lithium ion battery material dried by microwave is greatly reduced, the dispersibility is good, and there is no agglomeration phenomenon.Compared with the traditional drying technology, there is no significant difference in phase composition of precursor dried by microwave using X-ray diffraction. The drying efficiency is improved, and the primary yield is significantly increased. Problems in the production of lithium-ion battery materials can be solved by microwave drying technology, such as the introduction of magnetic foreign body, the nonuniform drying, the poor dispersibility, and the aggregation effect, which will benefit the industrial production of lithium-ion battery materials.
引文
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[3] Yang X W. Electromagnetic Simulation and Optimization Design of Microwave Oven[Dissertation]. Chengdu:University of Electronic Science and Technology of China,2008(杨先玮.微波炉电磁仿真与优化设计[学位论文].成都:电子科技大学, 2008)
[4] Zhu S Y, Wang G H. Principle and application of microwave drying. Ind Furn, 2003, 25(3):42(祝圣远,王国恒.微波干燥原理及其应用.工业炉,2003, 25(3):42)
[5] Chen H. Study on the Magnetic and Electrochemical Properties of Electrode Materials for Lithium Batteries[Dissertation]. Changchun:Jilin University, 2011(陈红.锂电池电极材料的磁性及电化学性质研究[学位论文].长春:吉林大学, 2011)
[6] Chang Q Z, Zhi F P, Wang S L, et al. A Method and Device for Reducing the Content of Magnetic Foreign Material in Cathode Material of Lithium Ion Batteries:China Patent,CN104835944B. 2017-8-4(常全忠,智福鹏,王树亮,等.一种降低锂离子电池正极材料磁性异物含量的方法及装置:中国专利,CN104835944B. 2017-8-4)
[7] Zeng H X, Cheng Z, Liao J J, et al. Application of microwave drying technology in the production of titanium silicon molecular sieves. Ind Catal, 2009,17(Suppl 1):157(曾厚旭,程志,廖建军,等.微波干燥技术在钛硅分子筛生产中的应用.工业催化, 2009, 17(增刊1):157)
[8] Wang S L. Application of Microwave Heating Technology:Drying and Sterilization. Beijing:Machinery Industry Press, 2003(王绍林.微波加热技术的应用—干燥和杀菌.北京:机械工业出版社, 2003)
[9] Mao R, Li Z G. Study on application of microwave technology in ceramic industry. Adv Ceram, 2007(4):38(毛瑞,李正刚.微波技术在陶瓷工业中的应用研究.现代技术陶瓷, 2007(4):38)
[2] Bai X T, Sun X Y, Zhuang W D, et al. Mechanism of synthesizing LiNi0.5Co0.2Mn0.3O2 by hydroxide precursor.Battery Bimonthly, 2014, 44(5):206(柏祥涛,孙学义,庄卫东,等.氢氧化物前驱体制备LiNi0.5Co0.2Mn0.3O2的机理.电池, 2014, 44(5):260)
[3] Yang X W. Electromagnetic Simulation and Optimization Design of Microwave Oven[Dissertation]. Chengdu:University of Electronic Science and Technology of China,2008(杨先玮.微波炉电磁仿真与优化设计[学位论文].成都:电子科技大学, 2008)
[4] Zhu S Y, Wang G H. Principle and application of microwave drying. Ind Furn, 2003, 25(3):42(祝圣远,王国恒.微波干燥原理及其应用.工业炉,2003, 25(3):42)
[5] Chen H. Study on the Magnetic and Electrochemical Properties of Electrode Materials for Lithium Batteries[Dissertation]. Changchun:Jilin University, 2011(陈红.锂电池电极材料的磁性及电化学性质研究[学位论文].长春:吉林大学, 2011)
[6] Chang Q Z, Zhi F P, Wang S L, et al. A Method and Device for Reducing the Content of Magnetic Foreign Material in Cathode Material of Lithium Ion Batteries:China Patent,CN104835944B. 2017-8-4(常全忠,智福鹏,王树亮,等.一种降低锂离子电池正极材料磁性异物含量的方法及装置:中国专利,CN104835944B. 2017-8-4)
[7] Zeng H X, Cheng Z, Liao J J, et al. Application of microwave drying technology in the production of titanium silicon molecular sieves. Ind Catal, 2009,17(Suppl 1):157(曾厚旭,程志,廖建军,等.微波干燥技术在钛硅分子筛生产中的应用.工业催化, 2009, 17(增刊1):157)
[8] Wang S L. Application of Microwave Heating Technology:Drying and Sterilization. Beijing:Machinery Industry Press, 2003(王绍林.微波加热技术的应用—干燥和杀菌.北京:机械工业出版社, 2003)
[9] Mao R, Li Z G. Study on application of microwave technology in ceramic industry. Adv Ceram, 2007(4):38(毛瑞,李正刚.微波技术在陶瓷工业中的应用研究.现代技术陶瓷, 2007(4):38)