低成本电池材料Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2)的制备与表征  

Synthesis and characterization of Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2)cathode material for Li-ion batteries

作　　者：王玉慧[1] 王超会[1] 岳成娥[1] 于岩[1] WANG Yuhui;WANG Chaohui;YUE Cheng’e;YU Yan(College of Materials Science and Engineering,Qiqihar University,Qiqihar Heilongjiang 161006,China)

机构地区：[1]齐齐哈尔大学材料科学与工程学院,哈尔滨齐齐哈尔161006

出　　处：《电源技术》2021年第7期857-858,880,共3页Chinese Journal of Power Sources

基　　金：黑龙江省普通本科高等学校青年创新人才培养计划(2018103);黑龙江省省属高等学校基本科研业务费科研项目,青年学术骨干项目(135209301)。

摘　　要：Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2)中用地壳储量丰富的Fe元素取代了昂贵及有毒性的Co元素,既避免了使用有毒元素又降低了生产成本,为商业化批量生产提供了新的材料。采用溶胶凝胶法制备了Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2)正极材料。实验结果表明,煅烧11 h制得的Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2)具有最优的综合性能,粒子尺寸在100~300 nm之间,首次放电比容量达235 mAh/g,50次循环后的容量保持率在89.3%。Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2)contains Fe elements rich in crustal reserves to replace expensive and toxic Co elements,avoiding the use of toxic elements which can not only reduce the production costs but also provide new materials for commercial mass production.Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2)cathode materials were prepared by sol-gel method.The test results show that Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2)prepared by calcination of 11 h has the best comprehensive performance.The particle size is between 100-300 nm,the initial discharge specific capacity reaches 235 mAh/g,and after 50 cycles,the capacity retention rate is 89.3%.

关 键 词：铁 溶胶凝胶法 Li[Li_(1/6)Fe_(1/6)Ni_(1/6)Mn_(1/2)]O_(2) 低成本 

分 类 号：TM912.9[电气工程—电力电子与电力传动]