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dc.contributor.author王飞zh_CN
dc.contributor.author杨军zh_CN
dc.contributor.authorWANG Feizh_CN
dc.contributor.authorYANG Junzh_CN
dc.date.accessioned2013-12-30T09:11:16Z
dc.date.available2013-12-30T09:11:16Z
dc.date.issued2013-12-28zh_CN
dc.identifier.citation电化学,2013,19(6):585-589.zh_CN
dc.identifier.issn1006-3471zh_CN
dc.identifier.urihttp://dx.doi.org/10.13208/j.electrochem.130355zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/71592
dc.description.abstract采用多元醇法合成了高电位LiCoPO4正极材料. 以甲苯为碳源,在LiCoPO4表面化学气相沉积包覆一层厚度约3 nm的导电碳层. 通过XRD、SEM、TEM、CV以及恒流充放电曲线等方法分析、观察和测试样品的晶体结构、微观形貌以及电化学性能. 结果表明,多元醇法合成的样品为纯相LiCoPO4,碳包覆LiCoPO4/C电极0.1C倍率首次放电容量达到132 mAh·g-1,50周期循环容量保持78%. 循环伏安和微分容量曲线表明LiCoPO4/C电极的充放电过程Li+脱出和嵌入均为两步步骤.zh_CN
dc.description.abstractHigh potential LiCoPO4 cathode material was synthesized by polyol method. Carbon layer of ca. 3 nm thick was coated on the LiCoPO4 surfaces by chemical vapor deposition from methylbenzene. Crystalline structure, morphology and electrochemical performance of the sample were studied by XRD, SEM, TEM, CV and galvanostatic charge/discharge curve. The synthesized material via polyol method showed a pure phase of LiCoPO4. The LiCoPO4/C electrode delivered a high discharge capacity of 132 mAh·g-1 and maintained 78% of the initial capacity after 50 cycles at 0.1C rate. The two-step extraction/insertion behavior of Li+ in LiCoPO4/C was observed from cyclic voltammogram and differential capacitance curves.zh_CN
dc.description.sponsorship安徽省自然科学基金项目(No. 1308085QB41)和上海市科研计划项目(No. 11DZ1100206)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锂离子电池近期研究专辑 (厦门大学 杨勇教授主编)zh_CN
dc.relation.ispartofseriesSpecial Issue of Lithium-Ion Battery (Editor: Professor YANG Yong, Xiamen University)zh_CN
dc.source.urihttp://electrochem.xmu.edu.cn/CN/abstract/abstract10024.shtmlzh_CN
dc.subject多元醇法zh_CN
dc.subjectLiCoPO4zh_CN
dc.subject化学气相沉积zh_CN
dc.subject碳包覆zh_CN
dc.subjectpolyol methodzh_CN
dc.subjectLiCoPO4zh_CN
dc.subjectchemical vapor depositionzh_CN
dc.subjectcarbon coatingzh_CN
dc.title多元醇法合成纳米LiCoPO4及其电化学性能zh_CN
dc.title.alternativeSynthesis and Electrochemical Performance of Nano LiCoPO4 by Polyol Methodzh_CN
dc.typeArticlezh_CN
dc.description.note作者联系地址:1. 淮北师范大学 化学与材料科学学院,安徽 淮北 235000;2. 上海交通大学 化学化工学院,上海 200240zh_CN
dc.description.noteAuthor's Address: 1. School of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui, China; 2. School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, Chinazh_CN
dc.description.note通讯作者E-mail:yangj723@sjtu.edu.cnzh_CN


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