熔融浸渍法提高尖晶石锰酸锂循环性能Enhanced cycle stability of spinel LiMn2O4 by a melting impregnation method

 熔融浸渍法提高尖晶石锰酸锂循环性能[EB/OL]

北京：中国科技论文在线

其中ZnO包覆的试样表现出最好的循环性能

循环稳定性能的提高是源于颗粒表面氧化物对锰酸锂颗粒的保护作用

Al2O3和CeO2对尖晶石锰酸锂颗粒进行了表面包覆

其他试样的循环性能都有了不同程度的提高

除了CeO2包覆的试样之外

而未经处理的锰酸锂容量只剩下80 mAh g-1

） Abstract： In this paper, CuO, MgO, ZnO, Al2O3 and CeO2 coated spinal LiMn2O4 were successfully synthesized using a melting impregnation method

Except the CeO2 coated sample, all the others exhibit better capacity retention than bare LiMn2O4 at both room temperature and 55C

Among these samples, the ZnO coated sample showed the best capacity retention, a capacity of 100 mAh g-1 was obtained after 100 cycles at 55ºC while the capacity of bare LiMn2O4 remains only 80 mAh g-1

The improvement of the capacity retention is attributed to the suppressed Mn dissolution caused by HF

Keywords： melting impregnation method, LiMn2O4, coating, metal-oxide, cycle stability 下载PDF阅读器 PDF全文下载： 初稿 （ 224 ） 作者简介： 通信联系人： 【收录情况】 中国科技论文在线： 齐好