| 微波-高分子网络法合成可充锂离子电池材料LiLaxNd0.006-xMn1.994O4及其电化学测试 |
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| 引用本文： | 杨书廷,张焰峰,贾俊华,张明春,丁立.微波-高分子网络法合成可充锂离子电池材料LiLaxNd0.006-xMn1.994O4及其电化学测试[J].河南师范大学学报(自然科学版),2000,28(2). |
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| 作者姓名： | 杨书廷 张焰峰 贾俊华 张明春 丁立 |
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| 作者单位： | 河南师范大学化学与环境科学学院,河南,新乡,453002 |
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| 基金项目： | 河南省重大科技攻关项目!( 991 1 2 0 4 0 0 )，河南省自然科学基金项目 |
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| 摘 要： | 用微波—高分子网络法 ( m-p)合成掺杂 Li Lax Nd0 .0 0 6 - x Mn1 .994O4( x=0 .0 0 6,0 .0 0 4 ,0 .0 0 2 ,0 ) .XRD图显示用此法可制得晶型很好的样品 .充放电测试说明 Li Mn2 O4的特征容量为 1 2 0 m A/g,循环 2 0次后容量衰减率为 4 .7% .EIS和计时电量图说明掺 La的 Li Mn2 O4表层电阻小 ,而掺 Nd的 Li Mn2 O4的电导率高 .所以 ,将 La和 Nd以合适比例掺入 Li Mn2 O4中有可能提高材料的电导率和循环性能
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| 关 键 词： | LiMn_2O_4 掺杂 微波-高分子网络法 锂离子电池 |
Microwave-polymer Network Process and Electrochemical Performance of LiLaxNd0.006-xMn2O4 for Rechargeable Lithium Batteries |
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| YANG Shu-ting,ZHANG Yan-feng,JIA Jun-hua,ZHANG Ming-chun,DING Li.Microwave-polymer Network Process and Electrochemical Performance of LiLaxNd0.006-xMn2O4 for Rechargeable Lithium Batteries[J].Journal of Henan Normal University(Natural Science),2000,28(2). |
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| Authors: | YANG Shu-ting ZHANG Yan-feng JIA Jun-hua ZHANG Ming-chun DING Li |
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| Abstract: | Doped LiLa x Nd 0.006- x Mn 1.994 O 4 ( x =0.006, 0.004, 0.002, 0) was prepared by microwave-polymer (m-p) network process. XRD showed the high crystallinity was obtained by m-p process. Cyclic voltammogram and charge/ discharge tests showed that the specific capacity of doped LiMn 2O 4 was 120mAh/g and capacity fade was 4.7% after 20 cycles. EIS and the chronoamperometric data showed the surface resistance of LiMn 2O 4 doped with La was little, while LiMn 2O 4 doped with Nd had better electric conductivity, so LiMn 2O 4 doped with the proper proportion of La and Nd had better cyclability and electric conductivity. |
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| Keywords: | LiMn 2O 4 dope microwave-polymer network process lithium batteries |
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