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dc.contributor.author杜莉莉zh_CN
dc.contributor.author庄全超zh_CN
dc.contributor.author魏涛zh_CN
dc.contributor.author崔永丽zh_CN
dc.contributor.author孙智zh_CN
dc.contributor.author孙世刚zh_CN
dc.contributor.authorDu Li-lizh_CN
dc.contributor.authorZHUANG Quan-chaozh_CN
dc.contributor.authorWEI Taozh_CN
dc.contributor.authorCUI Yong-lizh_CN
dc.contributor.authorSUN Zhizh_CN
dc.contributor.authorSUN Shi-gangzh_CN
dc.date.accessioned2013-11-18T07:47:19Z
dc.date.available2013-11-18T07:47:19Z
dc.date.issued2011-05-28zh_CN
dc.identifier.citation电化学,2011,17(2):139-143.zh_CN
dc.identifier.issn1006-3471zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/58405
dc.description.abstract分别采用球磨法和高温热解法制备了Si/C复合材料,XRD、SEM、电化学阻抗谱、循环伏安法和恒流充放电测试表征该Si/C复合材料的结构、形貌和电化学性能.结果表明,相比于球磨法,高温热解HDPE制备的Si/C复合材料颗粒形貌规则,碳的包覆较为均匀,导电性较好,阻抗较小.该复合材料首次嵌锂容量为4495 mAh/g,首次库仑效率65.3% ,从第2周开始库仑电效率都保持在97% 左右,经过100次充放电循环后仍能达到438 mAh/g的可逆容量,具有较好的电化学循环稳定性.zh_CN
dc.description.abstractSi/C composite for lithium ion batteries was obtained by pyrolyzing and ball-milling. The microstructure and component of the composite was characterized by SEM and XRD, the electrochemical performance was investigated by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and galvano static charge-discharge tests. The results illustrate that the particle of Si/C composite prepared by pyrolysis exhibits inerratic morphology, uniform carbon-coating layer, good electrical conductivity, low resistance. The first intercalated-lithium capacity of the composite material is 4495 mAh/g; the first coulomb efficiency is 65.3%. From the second week the coulomb efficiency maintains 97%, and the capacity at the 100th cycle can retain 438 mAh/g. The Si/C composite has good electrochemical cycle stability.zh_CN
dc.description.sponsorship中央高校基本科研业务费专项资金(编号: 2010LKHX03、2010QNB04、2010QNB05) ,中国矿业大学科技攀登计划(编号: ON090237)项目资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/abstract9776.shtmlzh_CN
dc.subject锂离子电池zh_CN
dc.subjectzh_CN
dc.subject高温热解法zh_CN
dc.subjectlithium batteryzh_CN
dc.subjectsiliconzh_CN
dc.subjecthigh temperature pyrolysiszh_CN
dc.title包覆型Si/C复合材料的制备及其性能研究zh_CN
dc.title.alternativePreparation and Performance of Carbon-coated Si/C Compositeszh_CN
dc.typeArticlezh_CN
dc.description.note作者联系地址:1.中国矿业大学材料科学与工程学院锂离子电池实验室,江苏徐州 221116; 2. 厦门大学 固体表面物理化学国家重点实验室,化学化工学院化学系,福建 厦门 361005zh_CN
dc.description.noteAuthor's Address: 1.Li-ion Batteries Lab,  School of Materials Science and Engineering, China University of Mining and technology, Xuzhou 221116, Jiangsu, China; 2. State Key Lab for Physical Chemistry of Solid Surfaces,Department of Chemistry,College of Chemistry and Chemical Engineering, Xiamen University,Xiamen 361005,Fujian, Chinazh_CN
dc.description.note通讯作者E-mail:zhuangquanchao@126.comzh_CN


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