| 球磨EMD对熔融浸渍法合成锰酸锂的影响 |
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| 引用本文： | 刘宏基,刘兴泉,王超,向小春.球磨EMD对熔融浸渍法合成锰酸锂的影响[J].电池,2011,41(6):297-300. |
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| 作者姓名： | 刘宏基 刘兴泉 王超 向小春 |
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| 作者单位： | 电子科技大学微电子与固体电子学院,电子薄膜与集成器件国家重点实验室,四川成都610054 |
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| 基金项目： | 国家自然科学基金项目，电子科技大学杰出人才引进计划资助项目 |
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| 摘 要： | 对锰源工业电解二氧化锰(EMD)进行人工研磨或球磨处理,再以熔融浸渍法合成锰酸锂(LiMn2O4)正极材料.对制备的LiMn2O4进行SEM、XRD和电化学性能分析,考察球磨时间对EMD粒径和形貌的影响.球磨处理EMD能改善LiMn2O4的电化学性能,当球磨时间为8h时,产物的晶粒大小均匀,结晶度较高.在3.40～4....
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| 关 键 词： | 尖晶石 锰酸锂(LiMa2O4) 熔融浸渍法 球磨 正极材料 |
Effects of ball-milling EMD on lithium manganese oxide synthesized via melt-impregnation method |
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| LIU Hong-ji,LIU Xing-quan,WANG Chao,XIANG Xiao-chun.Effects of ball-milling EMD on lithium manganese oxide synthesized via melt-impregnation method[J].Battery Bimonthly,2011,41(6):297-300. |
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| Authors: | LIU Hong-ji LIU Xing-quan WANG Chao XIANG Xiao-chun |
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| Affiliation: | (School of Microelectronics and Solid State Electronics,State Key Laboratory of ElectronicThin Film and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | Manganese source industrial electrolytic manganese dioxide(EMD) was treated by manual grinding or ball-milling,lithium manganese oxide(LiMn2O4) cathode materials were synthesized by melt-impregnation method.The prepared LiMn2O4 was analyzed by SEM,XRD and electrochemical performance to investigate the effects of ball-milling time on the grain size and morphology of EMD.Ball-milling treating to EMD could improve the electrochemical performance of LiMn2O4.When the ball-milling time was 8 h,the product had a uniform partical size and high degree of crystallinity,the 0.5 C initial specific discharge capacity was 115.3 mAh/g when charged-discharged at 3.40~4.35 V,the capacity retention after 20 cycles was 95.5%. |
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| Keywords: | spinel lithium manganese oxide(LiMn2O4) melt-impregnation method ball-milling cathode material |
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