| Li(Ni0.4Co0.2Mn0.4)O2包覆Al2O3对隔膜形貌及结构的影响 |
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| 引用本文： | 刘浩涵,张建,娄豫皖,夏保佳.Li(Ni0.4Co0.2Mn0.4)O2包覆Al2O3对隔膜形貌及结构的影响[J].电池,2012,42(2):59-61. |
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| 作者姓名： | 刘浩涵 张建 娄豫皖 夏保佳 |
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| 作者单位： | 中国科学院上海微系统与信息技术研究所,上海,200050 |
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| 基金项目： | 国家自然科学基金(20773157);中国科学院国防科技创新基金(CXJJ-09-M41);上海市科委纳米专项基金(1052nm00100) |
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| 摘 要： | 以Al2O3包覆前后的Li(Ni0.4Co0.2Mn0.4)O2为正极活性物质,中间相炭微球(MCMB)为负极活性物质,与聚丙烯(PP)-聚乙烯(PE)-PP三层隔膜组装成18650型锂离子电池,在循环不同次数后,用SEM观察隔膜形貌,XRD分析其精细结构.在电池的循环过程中,隔膜出现微孔闭合及微观结构改变；包覆抑制了隔膜中微孔的闭合,同时提高了结构稳定性.
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| 关 键 词： | Li(Ni0.4Co0.2Mn0.4)O2 包覆 循环性能 隔膜 |
Effect of Al2O3 coated Li(Ni0.4Co0.2Mn0.4)O2 on morphology and structure of separator |
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| LIU Hao-han
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ZHANG Jian
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LOU Yu-wan
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XIA Bao-jia.Effect of Al2O3 coated Li(Ni0.4Co0.2Mn0.4)O2 on morphology and structure of separator[J].Battery Bimonthly,2012,42(2):59-61. |
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| Authors: | LIU Hao-han ZHANG Jian LOU Yu-wan XIA Bao-jia |
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| Affiliation: | (Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China) |
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| Abstract: | 18650 type Li-ion battery was assembled with PP-PE-PP three-layer separator using Li(Ni0.4Co0.2Mn0.4)O2 before and after Al2O3 coating as cathode active material,MCMB as anode active material.The morphology of the separator was observed by SEM and the fine structure was tested by XRD after different cycle number.The partial holes of separators were closed during cycle process and the fine structure was changed.The coating suppressed the closing of holes of separators,at the same time,improved the structure stability. |
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| Keywords: | Li(Ni0 4Co0 2Mn0 4)O2 coating cycle performance separator |
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