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Article(id=1322608967621128709, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322608967147172356, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190330, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1557158400000, receivedDateStr=2019-05-07, revisedDate=1561046400000, revisedDateStr=2019-06-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1793264150767, onlineDateStr=2026-10-29, pubDate=1582128000000, pubDateStr=2020-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793264150767, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793264150767, creator=13701087609, updateTime=1793264150767, updator=13701087609, issue=Issue{id=1322608967147172356, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='2', pageStart='147', pageEnd='324', issueExtLink='null', onlineDate='null', pubDate='1582128000000', pubDateStr='2020-02-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793264150653, creator='13701087609', updateTime=1793276939599, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322662607933255748, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322608967147172356, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322662607933255749, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322608967147172356, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=174, endPage=181, ext={EN=ArticleExt(id=1322608967805678086, articleId=1322608967621128709, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Preparation of Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 Cathode Materials by Co-precipitation Method for Lithium Ion Batteries, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 cathode materials for lithium ion battery were prepared by a co-precipitation method and subsequnet lithium mixing and calcination. The phase composition, morphology and structure, valance state, particle size distribution and tap density of the prepared samples were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, laser particle size analysis and tap density measurement. The electrochemical performance of the samples was analyzed by means of charge and discharge tester. The results show that the sample prepared by co-precipitation at a low stirring speeds has a solid spherical morphology, which is assembly of massiverod-like primary particles. The sample prepared at high stirring speeds has a morphology of dispersed microrods. The as-prepared solid sphere sample exhibits a greater tap density of 1.7 g/cm3 and better electrochemical performances (i.e., discharge capacity of 233.8 mA·h/g at 0.2 C rate, 2 C/0.2 C specific discharge capacity ratio of 62.2% and capacity retention up to 90.8% at 0.5 C rate after 100 cycles), compared to the dispersed microrod sample.

, authors=Wenming LI, Maoqin QIU, Zeheng YANG, Weixin ZHANG, authorsList=Wenming LI, Maoqin QIU, Zeheng YANG, Weixin ZHANG, authorCompany=null, correspAuthors=Zeheng YANG, authorNote=

LI Wenming (1986-), male, Doctoral candidate. E-mail:

, correspAuthorsNote=
YANG Zeheng (1961-), male, Ph.D., Professor. E-mail:
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采用简易的草酸盐共沉淀方法，结合后续混锂焙烧制备了锂离子电池0.5Li2MnO3·0.5LiCo0.5Mn0.5O2富锂锰基正极材料。利用X射线衍射、场发射扫描电镜、透射电镜、X射线光电子能谱仪、激光粒度分析仪和振实密度仪等测试表征了所制备材料的物相、形貌、元素价态和粒度分布。利用充放电测试仪对材料的电化学性能进行了测试。结果表明：在低搅拌转速条件下共沉淀法制备的样品呈规则球状形貌，球体是由许多棒状一次粒子聚集而成；在高搅拌转速条件下，所制备出的样品呈现较为分散的棒状形貌。低搅拌转速下所制备的球状颗粒样品展现出了更高的振实密度（1.7 g/cm3）和更优异的电化学性能：0.2 C倍率条件下首次放电比容量为233.8 mA·h/g，2 C/0.2 C放电比容量比值为62.2%，0.5 C循环100次容量保持率为90.8%，倍率性能和循环稳定性能优异。

, authors=李文明, 邱茂琴, 杨则恒, 张卫新, authorsList=李文明, 邱茂琴, 杨则恒, 张卫新, authorCompany=null, correspAuthors=杨则恒, authorNote=

李文明（1986—），男，博士研究生。

, correspAuthorsNote=
杨则恒（1961—），男，博士，教授。
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LI Wenming (1986-), male, Doctoral candidate. E-mail:

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李文明（1986—），男，博士研究生。

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李文明（1986—），男，博士研究生。

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共沉淀法制备锂离子电池0.5Li2MnO3·0.5LiCo0.5Mn0.5O2富锂锰基正极材料
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李文明 , 邱茂琴 , 杨则恒 , 张卫新
硅酸盐学报 | 2020,48(2): 174-181
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硅酸盐学报 | 2020 , 48 (2) : 174 -181
共沉淀法制备锂离子电池0.5Li2MnO3·0.5LiCo0.5Mn0.5O2富锂锰基正极材料
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李文明 , 邱茂琴, 杨则恒 , 张卫新
作者信息
  • 合肥工业大学化学与化工学院，合肥 230009
通讯作者:
杨则恒（1961—），男，博士，教授。
作者简介:

李文明（1986—），男，博士研究生。

Preparation of Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 Cathode Materials by Co-precipitation Method for Lithium Ion Batteries
Wenming LI , Maoqin QIU, Zeheng YANG , Weixin ZHANG
Affiliations
  • School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
    • Corresponding Author:
    YANG Zeheng (1961-), male, Ph.D., Professor. E-mail:

    LI Wenming (1986-), male, Doctoral candidate. E-mail:

出版时间: 2020-02-20 doi: 10.14062/j.issn.0454-5648.20190330
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摘要
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采用简易的草酸盐共沉淀方法，结合后续混锂焙烧制备了锂离子电池0.5Li2MnO3·0.5LiCo0.5Mn0.5O2富锂锰基正极材料。利用X射线衍射、场发射扫描电镜、透射电镜、X射线光电子能谱仪、激光粒度分析仪和振实密度仪等测试表征了所制备材料的物相、形貌、元素价态和粒度分布。利用充放电测试仪对材料的电化学性能进行了测试。结果表明：在低搅拌转速条件下共沉淀法制备的样品呈规则球状形貌，球体是由许多棒状一次粒子聚集而成；在高搅拌转速条件下，所制备出的样品呈现较为分散的棒状形貌。低搅拌转速下所制备的球状颗粒样品展现出了更高的振实密度（1.7 g/cm3）和更优异的电化学性能：0.2 C倍率条件下首次放电比容量为233.8 mA·h/g，2 C/0.2 C放电比容量比值为62.2%，0.5 C循环100次容量保持率为90.8%，倍率性能和循环稳定性能优异。

共沉淀法  /  钴锰酸锂  /  富锂锰基  /  正极材料  /  锂电子电池

Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 cathode materials for lithium ion battery were prepared by a co-precipitation method and subsequnet lithium mixing and calcination. The phase composition, morphology and structure, valance state, particle size distribution and tap density of the prepared samples were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, laser particle size analysis and tap density measurement. The electrochemical performance of the samples was analyzed by means of charge and discharge tester. The results show that the sample prepared by co-precipitation at a low stirring speeds has a solid spherical morphology, which is assembly of massiverod-like primary particles. The sample prepared at high stirring speeds has a morphology of dispersed microrods. The as-prepared solid sphere sample exhibits a greater tap density of 1.7 g/cm3 and better electrochemical performances (i.e., discharge capacity of 233.8 mA·h/g at 0.2 C rate, 2 C/0.2 C specific discharge capacity ratio of 62.2% and capacity retention up to 90.8% at 0.5 C rate after 100 cycles), compared to the dispersed microrod sample.

co-precipitation  /  lithium cobalt manganese oxide  /  lithium-rich manganese-based  /  cathode material  /  lithium ion battery
李文明, 邱茂琴, 杨则恒, 张卫新. 共沉淀法制备锂离子电池0.5Li2MnO3·0.5LiCo0.5Mn0.5O2富锂锰基正极材料. 硅酸盐学报, 2020 , 48 (2) : 174 -181 . DOI: 10.14062/j.issn.0454-5648.20190330
Wenming LI, Maoqin QIU, Zeheng YANG, Weixin ZHANG. Preparation of Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 Cathode Materials by Co-precipitation Method for Lithium Ion Batteries[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (2) : 174 -181 . DOI: 10.14062/j.issn.0454-5648.20190330
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  • 国家自然科学基金项目(91834301; 91534102; 21271058)
  • 安徽省科技攻关项目(1501021013)
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doi: 10.14062/j.issn.0454-5648.20190330
  • 接收时间：2019-05-07
  • 首发时间：2026-10-29
  • 出版时间：2020-02-20
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  • 收稿日期：2019-05-07
  • 修回日期：2019-06-21
基金
国家自然科学基金项目(91834301; 91534102; 21271058)
安徽省科技攻关项目(1501021013)
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    合肥工业大学化学与化工学院，合肥 230009

通讯作者:

杨则恒（1961—），男，博士，教授。
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2种不同金属材料的力学参数
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Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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