| 室温固相法制备Co/Mn包覆LiNiO_2正极材料(英文) |
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| 引用本文： | 胡国荣,邓新荣,彭忠东,杜柯,曹雁冰,刘智敏,肖政伟.室温固相法制备Co/Mn包覆LiNiO_2正极材料(英文)[J].稀有金属材料与工程,2008,37(11). |
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| 作者姓名： | 胡国荣 邓新荣 彭忠东 杜柯 曹雁冰 刘智敏 肖政伟 |
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| 作者单位： | 1. 中南大学,湖南,长沙,410083
2. 中南大学冶金科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 国家自然科学基金
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| 摘 要： | 重点研究了室温固相法Co/Mn氢氧化物包覆Ni(OH)2的机理.采用XRD,SEM,TEM和EDS分析检测手段分析了未包覆与表面包覆材料的结构、形貌和表面成分.TEM实验结果表明,LiNiO2颗粒表面包覆了一薄层化合物;XPS实验结果表明,LiNiO2颗粒表面包覆了Co/Mn元素;SEM和EDS实验结果进一步表明,球形LiNiO2颗粒表面均匀包覆了Co/Mn化合物层.电化学性能测试结果表明,经Co/Mn包覆的LiNiO2正极材料显示了优越的循环性能.
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| 关 键 词： | 室温固相法 包覆 正极材料 |
Co/Mn-Coated LiNiO_2 Cathode Materials by Solid-State Reaction at Room Temperature |
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| Hu Guorong,Deng Xinrong,Peng Zhongdong,Du Ke,Cao Yanbin,Liu Zhimin,Xiao Zhengwei.Co/Mn-Coated LiNiO_2 Cathode Materials by Solid-State Reaction at Room Temperature[J].Rare Metal Materials and Engineering,2008,37(11). |
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| Authors: | Hu Guorong Deng Xinrong Peng Zhongdong Du Ke Cao Yanbin Liu Zhimin Xiao Zhengwei |
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| Affiliation: | Hu Guorong,Deng Xinrong,Peng Zhongdong,Du Ke,Cao Yanbin,Liu Zhimin,Xiao Zhengwei (Central South University,Changsha 410083,China) |
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| Abstract: | Preparation of Co/Mn-coated LiNiO2 cathode materials by solid-state reaction at room temperature was described. The mechanism of Co/Mn hydrate coated Ni(OH)2 by solid-state reaction at room temperature was investigated.The structure, morphology and surface composition of the uncoated and coated particles were studied with XRD,SEM,TEM and EDS.The TEM result shows a thin film is coated on the surface of LiNiO2 particles.XPS results show Co/Mn elements are coated on the surface of LiNiO2 particles.SEM and EDS ... |
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| Keywords: | solid-state reaction at room temperature coating cathode material |
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