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The synthesis of Co-doped LiMn2O4 materials by microwave template method
Author(s):
YANG Shu-Ting
,
DONG Hong-yu
,
YIN Yan-hong
,
ZHAO Na-hong
Pages:
223
-
225
Year:
2005
Issue:
3
Journal:
BATTERY BIMONTHLY
Keyword:
锂离子电池
;
锰酸锂
;
掺杂
;
正极材料
;
Abstract:
利用微波模板法制备了尖晶石型LiMn2O4-xCoxO4(x=0、0.1、0.2和0.4)锂离子电池正极材料.利用XRD和SEM等方法对样品进行了表征,结果表明:掺杂后的材料仍是尖晶石相,掺杂Co可提高材料的尖晶石结构稳定性.电化学测试结果显示:与纯的LiMn2O4材料相比,掺杂后的材料循环性能得到提高.x=0.2为最佳值,其初始容量为112 mAh/g,40次循环后,容量衰减率为9%.
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