| LiCoO2改性LiMn2O4的结构及性能 |
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| 引用本文： | 蔡振平,李明勋,卢世刚,阚素荣,金维华.LiCoO2改性LiMn2O4的结构及性能[J].电池,2005,35(2):89-90. |
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| 作者姓名： | 蔡振平 李明勋 卢世刚 阚素荣 金维华 |
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| 作者单位： | 北京有色金属研究总院,北京,100088;北京有色金属研究总院,北京,100088;北京有色金属研究总院,北京,100088;北京有色金属研究总院,北京,100088;北京有色金属研究总院,北京,100088 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用固相反应法制备了尘晶石型LiMn2O4及改性LiMn2O4.利用XRD和SEM对合成产物的结构进行表征,并测试了它们的电化学性能.结果表明:用LiCoO2改性后的复合产物保持了尖晶石主体结构,随着liCoO2量的增加,Mn-O键增强,晶胞参数减小,产物的结构性能较好.以合成的改性产物为正极材料,MCMB为负极材料,组装的063048型锂离子电池循环300次后,容量保持率在80%以上.
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| 关 键 词： | 锂离子电池 LiMn2O4 改性 |
| 文章编号： | 1001-1579(2005)02-0089-02 |
| 修稿时间： | 2004年10月27 |
Structure and performance of LiMn2O4 modified with LiCoO2 |
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| CAI Zhen-ping,LI Ming-xun,LU Shi-gang,KAN Su-rong,JIN Wei-hua.Structure and performance of LiMn2O4 modified with LiCoO2[J].Battery Bimonthly,2005,35(2):89-90. |
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| Authors: | CAI Zhen-ping LI Ming-xun LU Shi-gang KAN Su-rong JIN Wei-hua |
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| Abstract: | Spinel LiMn_2O_4 and modified LiMn_2O_4 were synthesized by the solid-state reaction method. The XRD and SEM were used to study the structure properties and the electrochemical performance of products. The results showed that the crystal structure of modified LiMn_2O_4 was kept as spinel, and with the increasing of LiCoO_2, bonds of Mn-O were strengthened and lattice parameters were decreased,the structure stability was improved.The 063048 Li-ion battery assembled with the synthesized (products) as the cathode materials and MCMB as the anode material showed that its capacity retention was over 80% after 300 cycles. |
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| Keywords: | LiMn2O4 |
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