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dc.contributor.author胡俊艳zh_CN
dc.contributor.author王蒙蒙zh_CN
dc.contributor.author刘洪涛zh_CN
dc.contributor.authorHU Jun-yanzh_CN
dc.contributor.authorWANG Meng-mengzh_CN
dc.contributor.authorLIU Hong-taozh_CN
dc.date.accessioned2015-09-17T01:48:58Z
dc.date.available2015-09-17T01:48:58Z
dc.date.issued2015-08-28zh_CN
dc.identifier.citation电化学,2015,21(4):382-386.zh_CN
dc.identifier.issn1006-3471zh_CN
dc.identifier.urihttp://dx.doi.org/10.13208/j.electrochem.150113zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/93767
dc.description.abstract通过溶胶-凝胶和高温固相掺杂反应可控合成了形貌均匀、结晶性好的尖晶石型LiMn1.9Al0.1O3.95F0.05正极材料,探究了Al部分取代Mn、F部分取代O后对结构的影响,测试并比较了电极材料的倍率性能和循环充放电性能. 结果表明,尖晶石型LiMn1.9Al0.1O3.95F0.05和LiMn2O4有同样的晶型,但电极较传统的LiMn2O4电极倍率稳定性有显著提高. 在连续混合(如0.1C、0.5C和1C)充放电150次后,LiMn1.9Al0.1O3.95F0.05电极的容量仍能保持90%以上.zh_CN
dc.description.abstractSpinel LiMn1.9Al0.1O3.95F0.05 cathode materials with good crystallinity were synthesized by a sol-gel process followed with a high-temperature solid reaction. The effects of partial substitution of Al for Mn, and F for O on the structure and the electrochemical performance were investigated. The results showed that LiMn1.9Al0.1O3.95F0.05 exhibited the same crystalline state as LiMn2O4, but much better electrochemical stability at higher rate cycling. As a result, LiMn1.9Al0.1O3.95F0.05 could maintain stable electrochemical lithium storage even suffering from different rate currents that retains over 90% of the initial capacity after 150 cycles at continuously varying currents (i.e. 0.1C, 0.5C, and 1C).zh_CN
dc.description.sponsorship湖南省科技计划重点项目(No. 2014FJ2007)、湖南省自然科学基金重点项目(No. 10JJ2004)及国家自然科学基金面上项目(No. 20976198)资助zh_CN
dc.language.isozhzh_CN
dc.publisher厦门大学《电化学》编辑部zh_CN
dc.relation.ispartofseries研究论文zh_CN
dc.relation.ispartofseriesArticleszh_CN
dc.source.urihttp://electrochem.xmu.edu.cn/CN/abstract/abstract10180.shtmlzh_CN
dc.subject尖晶石锰酸锂zh_CN
dc.subject锂离子电池zh_CN
dc.subject溶胶-凝胶zh_CN
dc.subject倍率性能zh_CN
dc.subject容量保持zh_CN
dc.subjectspinel lithium manganese oxidezh_CN
dc.subjectlithium-ion batteryzh_CN
dc.subjectsol-gel methodzh_CN
dc.subjectrate capabilityzh_CN
dc.subjectcapacity retentionzh_CN
dc.title尖晶石型LiMn1.9Al0.1O3.95F0.05材料的制备及其增强的倍率性能zh_CN
dc.title.alternativePreparation and Enhanced Rate Capability of Spinel LiMn1.9Al0.1O3.95F0.05zh_CN
dc.typeArticlezh_CN
dc.description.note作者联系地址:中南大学化学化工学院,湖南 长沙 410083zh_CN
dc.description.noteAuthor's Address: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Chinazh_CN
dc.description.note通讯作者E-mail:liuht@csu.edu.cnzh_CN


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