Article(id=1319986872395354256, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210656, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1628611200000, receivedDateStr=2021-08-11, revisedDate=1633104000000, revisedDateStr=2021-10-02, acceptedDate=null, acceptedDateStr=null, onlineDate=1792638994549, onlineDateStr=2026-10-22, pubDate=1652976000000, pubDateStr=2022-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792638994549, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792638994549, creator=13701087609, updateTime=1792638994549, updator=13701087609, issue=Issue{id=1319986871980118160, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='5', pageStart='1201', pageEnd='1454', issueExtLink='null', onlineDate='null', pubDate='1652976000000', pubDateStr='2022-05-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792638994450, creator='13701087609', updateTime=1792639285419, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319988092451275233, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319988092451275234, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319986871980118160, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1201, endPage=1208, ext={EN=ArticleExt(id=1319986872567320721, articleId=1319986872395354256, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Electrochemical Performance of LiAlSiO4 Modified High Voltage LiCoO2 Cathode Materials, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

Lithium cobalt oxide is a leading cathode material for 3C electronic products because of its high bulk energy density, excellent rate capacity and good cycle performance. The existing gram capacity of lithium cobalt oxide material in practical application is approximately 65% of the theoretical capacity, and this material has a potential for further development. In this paper, a lithium ion cobalt oxide cathode material was coated with lithium ion conductor material LiAlSiO4 by a sol-gel method. The effects of LiAlSiO4 and heat treatment temperature on the structure, morphology and electrochemical properties of the material were investigated. The results show that during the heat treatment, Al3+ enters the LiCoO2 lattice to form a solid solution LiCo1-xAlxO2, and an inert coating layer is formed on the surface of the lithium cobalt oxide particles LiAlSiO4 coating, effectively improving the cycle and rate performance of the lithium cobalt oxide material at a high voltage. The optimum overall performance of the lithium cobalt oxide material coated with LiAlSiO4 can be obtained at a heat treatment temperature of 600 ℃. In a voltage range of 2.75-4.55 V, the specific discharge capacity at room temperature at 0.5 C rate is 209.3 mA·h/g, and the discharge specific capacity after 50 cycles is 201.6 mA·h/g (at a capacity retention rate of 96.3%), and the specific capacity is 160.0 mA·h/g at 8 C.

, authors=Bin SHEN1, Xing XU2, Wanmin LIU1, Mulan QIN1, Weigang WANG1, authorsList=Bin SHEN, Xing XU, Wanmin LIU, Mulan QIN, Weigang WANG, authorCompany=null, correspAuthors=Wanmin LIU, authorNote=

SHEN Bin (1986-), male, Ph.D.. E-mail:

, correspAuthorsNote=
LIU Wanmin (1979-), male, Ph.D., Professor. E-mail:
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钴酸锂因其高体积能量密度、优异的倍率容量和良好的循环性能,是3C类电子产品的主导正极材料,且目前实际应用的钴酸锂材料克容量约为理论容量的65%,还具有进一步开发的潜力。采用溶胶-凝胶法对正极材料LiCoO2进行锂离子导体材料LiAlSiO4包覆,研究了LiAlSiO4及热处理温度对材料结构、形貌和电化学性能的影响。结果表明:热处理过程中Al3+可进入LiCoO2晶格,形成固溶体LiCo1-xAlxO2;LiAlSiO4在钴酸锂颗粒表面形成惰性的包覆层,有效地改善了钴酸锂材料在高电压下的循环和倍率性能。当热处理温度为600 ℃时,LiAlSiO4包覆的钴酸锂材料综合性能达到最优。该样品在2.75~4.55 V的电压范围内,0.5 C倍率下室温放电比容量为209.3 mA·h/g,50次循环后的放电比容量为201.6 mA·h/g(容量保留率96.3%),且在8 C倍率下依然能释放出160.0 mA·h/g的比容量。

, authors=申斌1, 徐星2, 刘万民1, 秦牡兰1, 王伟刚1, authorsList=申斌, 徐星, 刘万民, 秦牡兰, 王伟刚, authorCompany=null, correspAuthors=刘万民, authorNote=

申斌(1986—),男,博士。

, correspAuthorsNote=
刘万民(1979—),男,博士,教授。
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LiAlSiO4改性高电压LiCoO2正极材料的电化学性能
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申斌 1 , 徐星 2 , 刘万民 1 , 秦牡兰 1 , 王伟刚 1
硅酸盐学报 | 研究论文 2022,50(5): 1201-1208
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硅酸盐学报 |研究论文 2022 , 50 (5) : 1201 -1208
LiAlSiO4改性高电压LiCoO2正极材料的电化学性能
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申斌1 , 徐星2, 刘万民1 , 秦牡兰1, 王伟刚1
作者信息
  • 1.湖南工程学院材料与化工学院,湖南 湘潭 411100
  • 2.特种化学电源国家重点实验室,贵州梅岭电源有限公司,贵州 遵义 563003
通讯作者:
刘万民(1979—),男,博士,教授。
作者简介:

申斌(1986—),男,博士。

Electrochemical Performance of LiAlSiO4 Modified High Voltage LiCoO2 Cathode Materials
Bin SHEN1 , Xing XU2, Wanmin LIU1 , Mulan QIN1, Weigang WANG1
Affiliations
  • 1.College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411100, Hunan, China
  • 2.State Key Laboratory of Advanced Chemical Power Sources, Guizhou Meiling Power Sources Co. Ltd., Zunyi 563003, Guizhou, China
  • Corresponding Author:
    LIU Wanmin (1979-), male, Ph.D., Professor. E-mail:

    SHEN Bin (1986-), male, Ph.D.. E-mail:

出版时间: 2022-05-20 doi: 10.14062/j.issn.0454-5648.20210656
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钴酸锂因其高体积能量密度、优异的倍率容量和良好的循环性能,是3C类电子产品的主导正极材料,且目前实际应用的钴酸锂材料克容量约为理论容量的65%,还具有进一步开发的潜力。采用溶胶-凝胶法对正极材料LiCoO2进行锂离子导体材料LiAlSiO4包覆,研究了LiAlSiO4及热处理温度对材料结构、形貌和电化学性能的影响。结果表明:热处理过程中Al3+可进入LiCoO2晶格,形成固溶体LiCo1-xAlxO2;LiAlSiO4在钴酸锂颗粒表面形成惰性的包覆层,有效地改善了钴酸锂材料在高电压下的循环和倍率性能。当热处理温度为600 ℃时,LiAlSiO4包覆的钴酸锂材料综合性能达到最优。该样品在2.75~4.55 V的电压范围内,0.5 C倍率下室温放电比容量为209.3 mA·h/g,50次循环后的放电比容量为201.6 mA·h/g(容量保留率96.3%),且在8 C倍率下依然能释放出160.0 mA·h/g的比容量。

锂离子电池  /  钴酸锂  /  硅酸铝锂  /  高电压  /  包覆改性

Lithium cobalt oxide is a leading cathode material for 3C electronic products because of its high bulk energy density, excellent rate capacity and good cycle performance. The existing gram capacity of lithium cobalt oxide material in practical application is approximately 65% of the theoretical capacity, and this material has a potential for further development. In this paper, a lithium ion cobalt oxide cathode material was coated with lithium ion conductor material LiAlSiO4 by a sol-gel method. The effects of LiAlSiO4 and heat treatment temperature on the structure, morphology and electrochemical properties of the material were investigated. The results show that during the heat treatment, Al3+ enters the LiCoO2 lattice to form a solid solution LiCo1-xAlxO2, and an inert coating layer is formed on the surface of the lithium cobalt oxide particles LiAlSiO4 coating, effectively improving the cycle and rate performance of the lithium cobalt oxide material at a high voltage. The optimum overall performance of the lithium cobalt oxide material coated with LiAlSiO4 can be obtained at a heat treatment temperature of 600 ℃. In a voltage range of 2.75-4.55 V, the specific discharge capacity at room temperature at 0.5 C rate is 209.3 mA·h/g, and the discharge specific capacity after 50 cycles is 201.6 mA·h/g (at a capacity retention rate of 96.3%), and the specific capacity is 160.0 mA·h/g at 8 C.

lithium-ion battery  /  lithium cobalt oxide  /  lithium aluminum silicate  /  high voltage  /  coating modification
申斌, 徐星, 刘万民, 秦牡兰, 王伟刚. LiAlSiO4改性高电压LiCoO2正极材料的电化学性能. 硅酸盐学报, 2022 , 50 (5) : 1201 -1208 . DOI: 10.14062/j.issn.0454-5648.20210656
Bin SHEN, Xing XU, Wanmin LIU, Mulan QIN, Weigang WANG. Electrochemical Performance of LiAlSiO4 Modified High Voltage LiCoO2 Cathode Materials[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (5) : 1201 -1208 . DOI: 10.14062/j.issn.0454-5648.20210656
  • 湖南省教育厅科研项目(19A111; 20C0490)
  • 湖南省自然科学基金(2021JJ30183)
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doi: 10.14062/j.issn.0454-5648.20210656
  • 接收时间:2021-08-11
  • 首发时间:2026-10-22
  • 出版时间:2022-05-20
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  • 收稿日期:2021-08-11
  • 修回日期:2021-10-02
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湖南省教育厅科研项目(19A111; 20C0490)
湖南省自然科学基金(2021JJ30183)
作者信息
    1.湖南工程学院材料与化工学院,湖南 湘潭 411100
    2.特种化学电源国家重点实验室,贵州梅岭电源有限公司,贵州 遵义 563003

通讯作者:

刘万民(1979—),男,博士,教授。
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2种不同金属材料的力学参数
科
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属数
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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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