| 锂离子电池正极材料LiNi0.8Co0.15Al0.05O2的制备及电化学性能 |
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| 引用本文： | 蒋世芳,孟焕菊,张宇栋,刘双,陶占良,陈军.锂离子电池正极材料LiNi0.8Co0.15Al0.05O2的制备及电化学性能[J].稀有金属材料与工程,2019,48(2):678-682. |
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| 作者姓名： | 蒋世芳 孟焕菊 张宇栋 刘双 陶占良 陈军 |
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| 作者单位： | 南开大学先进能源材料化学教育部重点实验室 |
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| 基金项目： | 国家重点研发计划(No.2016YFB0901502)、国家自然科学基金(No.51271094)及中央高校基本科研业务费资助 |
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| 摘 要： | 首先以AlO2-为铝源,采用三元共沉淀法制备前驱体Ni_(0.8)Co_(0.15)Al_(0.05)(OH)_2。对前驱体进行500℃高温处理,随后与过量的锂盐混合均匀,在氧气气氛下700℃煅烧12 h制得LiNi_(0.8)Co_(0.15)Al_(0.05)O_2(NCA)材料。采用X射线衍射仪(XRD)测试可知,所得的NCA材料呈典型的α-NaFeO_2层状结构,属于R-3m空间群。扫描电子显微镜(SEM)测试显示,NCA为粒径5～6μm的球状颗粒。材料在电流倍率为0.1C下首次放电容量为167.1mAh/g,循环200次以后容量保持率为96.2%。倍率测试表明,0.1、10 C下NCA的容量分别为184.0、112.7 mAh/g,到恢复到0.1 C时,容量仍可达179.7mAh/g,具有比较好的倍率性能。
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| 关 键 词： | 三元共沉淀法 高温处理 Ni0.8Co0.15Al0.05(OH)2 LiNi0.8Co0.15Al0.05O2 |
| 收稿时间： | 2017/6/5 0:00:00 |
| 修稿时间： | 2017/8/7 0:00:00 |
The preparation and electrochemical properties of LiNi0.8Co0.15Al0.05O2 lithium ion batteries cathode material |
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| Jiang Shifang,Meng Huanju,Zhang Yudong,Liu Shuang,Tao Zhanliang and Chen Jun.The preparation and electrochemical properties of LiNi0.8Co0.15Al0.05O2 lithium ion batteries cathode material[J].Rare Metal Materials and Engineering,2019,48(2):678-682. |
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| Authors: | Jiang Shifang Meng Huanju Zhang Yudong Liu Shuang Tao Zhanliang and Chen Jun |
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| Affiliation: | Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education,College of Chemistry,Nankai University,Collaborative Innovation Center of Chemical Science and Engineering,Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education,College of Chemistry,Nankai University,Collaborative Innovation Center of Chemical Science and Engineering,Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education,College of Chemistry,Nankai University,Collaborative Innovation Center of Chemical Science and Engineering,,Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education,College of Chemistry,Nankai University,Collaborative Innovation Center of Chemical Science and Engineering,Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education,College of Chemistry,Nankai University,Collaborative Innovation Center of Chemical Science and Engineering |
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| Abstract: | |
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| Keywords: | Co-precipitation method high-temperature process Ni0 8Co0 15Al0 05(OH)2 LiNi0 8Co0 15Al0 05O2 |
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