| 锰系三元材料合成试验研究 |
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| 引用本文： | 王春飞,李运姣,李华成,李普良,卢道焕. 锰系三元材料合成试验研究[J]. 中国锰业, 2013, 0(4): 22-26 |
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| 作者姓名： | 王春飞 李运姣 李华成 李普良 卢道焕 |
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| 作者单位： | [1]中信大锰矿业有限责任公司崇左分公司,广西崇左532200 [2]中南大学,湖南长沙410083 |
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| 摘 要： | 通过对三元前驱体的热反应过程分析，摸清了三元材料合成过程中的热行为，并以此确定合成温度范围。通过系列温度及气氛试验，研究了温度及气氛对锰系三元材料产品的晶体形貌、电化学性能及pH值的影响。试验表明，在先低温后高温的热处理制度下，当合成温度为450～880℃、通氧气时，合成的三元材料的综合性能最优。同时，借助TG—DSC、XRD、SEM等现代分析检测技术，系统研究了温度、气氛等参数对烧制过程的影响，探明了高温过程中材料的结构、组成、形貌及粒度的变化规律。
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| 关 键 词： | 三元氢氧化物前驱体 镍钴锰酸锂 烧结 |
Experimental Study on Mn Ternary Materials Synthesis |
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| WANG Chunfei,LI Yunjiao,LI Huacheng,LI Puliang,LU Daohuan. Experimental Study on Mn Ternary Materials Synthesis[J]. China's Manganese Industry, 2013, 0(4): 22-26 |
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| Authors: | WANG Chunfei LI Yunjiao LI Huacheng LI Puliang LU Daohuan |
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| Affiliation: | 1 CITIC Dameng Mining Industries Limited Chongzuo Branch, Chongzuo, Guangxi 532200, China; 2. Central South University, Changsha, Hunan 410083, China) |
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| Abstract: | Through an analysis on thermal reaction processes of ternary precursor, we have found out the thermal behavior of the synthesis process of ternary materials to determine the resultant temperature range. In a series of temperature and atmosphere testing of temperature and atmosphere on Mn ternary materials products of crystal morphology, we can know electrochemical properties and effects of pH values. Tests show the heat treatment of low temperature and high temperature after the preceding system when the synthesis temperature is 450 - 880~C in oxygen. Optimal synthesis of ternary material is comprehensive performance. At the same time, through TG-DSC, XRD, SEM, and other modem analysis and testing technology, we studied the effects of parameters such as temperature, atmosphere on the recording process, by exploring the structure of materials in high temperature processes with composition, morphology and size variation. |
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| Keywords: | Ternary hydroxide precursors Lithium cobalt nickel manganese oxide Sintering |
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