Article(id=1319987070886589323, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319987055371858691, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210753, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1632585600000, receivedDateStr=2021-09-26, revisedDate=1635091200000, revisedDateStr=2021-10-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1792639041872, onlineDateStr=2026-10-22, pubDate=1645286400000, pubDateStr=2022-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792639041872, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792639041872, creator=13701087609, updateTime=1792639041872, updator=13701087609, issue=Issue{id=1319987055371858691, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='2', pageStart='277', pageEnd='554', issueExtLink='null', onlineDate='null', pubDate='1645286400000', pubDateStr='2022-02-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792639038174, creator='13701087609', updateTime=1792639254308, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319987961958089069, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319987055371858691, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319987961958089070, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319987055371858691, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=364, endPage=371, ext={EN=ArticleExt(id=1319987072119714700, articleId=1319987070886589323, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Preparation and Electrochemical Properties of Li4Ti5O12@Porous-C Composite as Anode of Lithium Ion Battery, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

A composite of porous carbon coated Li4Ti5O12 was prepared by a hydrothermal synthesis and high-temperature activation method. The microstructure and electrochemical properties of the composite were investigated. The results show that Li4Ti5O12 is completely coated on the porous carbon layer. Meanwhile, the surface pores of Li4Ti5O12@porous C composite are evenly distributed, and the carbon layer thickness is approximately (8.5±3.6) nm. The discharge capacity at first cycle is 363 mAh/g, which is approximately twice greater than that of pure Li4Ti5O12. The AC impedance value of Li4Ti5O12@porous C composite decreases, which is only the half of that of pure Li4Ti5O12. The discharge specific capacity of Li4Ti5O12@porous-C composite is 251 mAh/g and the retention rate is 97.7 % after 200 cycles (i.e., the specific capacity of pure Li4Ti5O12 is 143 mAh/g and the retention rate is 94.7%), the discharge specific capacity is nearly doubled, especially when the rate test is carried out at different discharge rates. The reversible capacity is twice greater than that of Li4Ti5O12. The porous carbon coated modification of Li4Ti5O12 can increase the specific surface area and the electron transfer rate for the higher electrochemical properties.

, authors=Ming WANG, Pengfei FANG, Liang DU, Pengtao QI, Ding SHEN, authorsList=Ming WANG, Pengfei FANG, Liang DU, Pengtao QI, Ding SHEN, authorCompany=null, correspAuthors=null, authorNote=

WANG Ming (1982-), male, Ph.D., Associate Professor. E-mail:

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利用水热合成和高温活化处理对Li4Ti5O12进行多孔碳包覆复合改性实验,制备了Li4Ti5O12@porous-C复合材料,研究了复合材料微观结构和电化学性能。结果表明:Li4Ti5O12完全被包覆在多孔碳层中,同时,Li4Ti5O12@porous-C复合材料表面碳层孔洞分布均匀,碳层厚度约为(8.5±3.6) nm。其首次放电比容量为363 mAh/g,约为纯Li4Ti5O12放电比容量的2倍;交流阻抗值降低,仅为纯Li4Ti5O12的阻抗值的一半;Li4Ti5O12@porous-C复合材料在循环200周后的放电比容量为251 mAh/g,容量保持率为97.7%(纯LTO的比容量为143 mAh/g,保持率为94.7%),放电比容量提高了近1倍,而且特别是在不同放电速率下进行倍率测试时,其可逆容量比Li4Ti5O12提高超1.5倍。对Li4Ti5O12表面进行多孔碳包覆改性,可以同时提高其比表面积和电子传输速率,这也是其电化学性能也显著提高的主要原因。

, authors=王鸣, 方鹏飞, 都亮, 齐鹏涛, 沈丁, authorsList=王鸣, 方鹏飞, 都亮, 齐鹏涛, 沈丁, authorCompany=null, correspAuthors=null, authorNote=

王鸣(1982—),男,博士,副教授。

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锂离子电池负极用多孔碳包覆Li4Ti5O12复合材料的制备及电化学性能
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王鸣 , 方鹏飞 , 都亮 , 齐鹏涛 , 沈丁
硅酸盐学报 | 研究论文 2022,50(2): 364-371
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硅酸盐学报 |研究论文 2022 , 50 (2) : 364 -371
锂离子电池负极用多孔碳包覆Li4Ti5O12复合材料的制备及电化学性能
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王鸣 , 方鹏飞, 都亮, 齐鹏涛, 沈丁
作者信息
  • 辽宁工程技术大学材料科学与工程学院,辽宁 阜新 123000
作者简介:

王鸣(1982—),男,博士,副教授。

Preparation and Electrochemical Properties of Li4Ti5O12@Porous-C Composite as Anode of Lithium Ion Battery
Ming WANG , Pengfei FANG, Liang DU, Pengtao QI, Ding SHEN
Affiliations
  • School of Materials Science and Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China
  • WANG Ming (1982-), male, Ph.D., Associate Professor. E-mail:

出版时间: 2022-02-20 doi: 10.14062/j.issn.0454-5648.20210753
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利用水热合成和高温活化处理对Li4Ti5O12进行多孔碳包覆复合改性实验,制备了Li4Ti5O12@porous-C复合材料,研究了复合材料微观结构和电化学性能。结果表明:Li4Ti5O12完全被包覆在多孔碳层中,同时,Li4Ti5O12@porous-C复合材料表面碳层孔洞分布均匀,碳层厚度约为(8.5±3.6) nm。其首次放电比容量为363 mAh/g,约为纯Li4Ti5O12放电比容量的2倍;交流阻抗值降低,仅为纯Li4Ti5O12的阻抗值的一半;Li4Ti5O12@porous-C复合材料在循环200周后的放电比容量为251 mAh/g,容量保持率为97.7%(纯LTO的比容量为143 mAh/g,保持率为94.7%),放电比容量提高了近1倍,而且特别是在不同放电速率下进行倍率测试时,其可逆容量比Li4Ti5O12提高超1.5倍。对Li4Ti5O12表面进行多孔碳包覆改性,可以同时提高其比表面积和电子传输速率,这也是其电化学性能也显著提高的主要原因。

钛酸锂  /  多孔碳包覆  /  电化学性能  /  锂离子电池

A composite of porous carbon coated Li4Ti5O12 was prepared by a hydrothermal synthesis and high-temperature activation method. The microstructure and electrochemical properties of the composite were investigated. The results show that Li4Ti5O12 is completely coated on the porous carbon layer. Meanwhile, the surface pores of Li4Ti5O12@porous C composite are evenly distributed, and the carbon layer thickness is approximately (8.5±3.6) nm. The discharge capacity at first cycle is 363 mAh/g, which is approximately twice greater than that of pure Li4Ti5O12. The AC impedance value of Li4Ti5O12@porous C composite decreases, which is only the half of that of pure Li4Ti5O12. The discharge specific capacity of Li4Ti5O12@porous-C composite is 251 mAh/g and the retention rate is 97.7 % after 200 cycles (i.e., the specific capacity of pure Li4Ti5O12 is 143 mAh/g and the retention rate is 94.7%), the discharge specific capacity is nearly doubled, especially when the rate test is carried out at different discharge rates. The reversible capacity is twice greater than that of Li4Ti5O12. The porous carbon coated modification of Li4Ti5O12 can increase the specific surface area and the electron transfer rate for the higher electrochemical properties.

lithium titanate  /  porous carbon coating  /  electrochemical performance  /  lithium ion battery
王鸣, 方鹏飞, 都亮, 齐鹏涛, 沈丁. 锂离子电池负极用多孔碳包覆Li4Ti5O12复合材料的制备及电化学性能. 硅酸盐学报, 2022 , 50 (2) : 364 -371 . DOI: 10.14062/j.issn.0454-5648.20210753
Ming WANG, Pengfei FANG, Liang DU, Pengtao QI, Ding SHEN. Preparation and Electrochemical Properties of Li4Ti5O12@Porous-C Composite as Anode of Lithium Ion Battery[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (2) : 364 -371 . DOI: 10.14062/j.issn.0454-5648.20210753
  • 国家自然科学基金项目(51874167; 51774175)
  • 辽宁省教育厅科学研究面上项目(LJKZ0363)
  • 辽宁工程技术大学学科创新团队项目(LNTU20TD-09; LNTU20TD-16)
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doi: 10.14062/j.issn.0454-5648.20210753
  • 接收时间:2021-09-26
  • 首发时间:2026-10-22
  • 出版时间:2022-02-20
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  • 收稿日期:2021-09-26
  • 修回日期:2021-10-25
基金
国家自然科学基金项目(51874167; 51774175)
辽宁省教育厅科学研究面上项目(LJKZ0363)
辽宁工程技术大学学科创新团队项目(LNTU20TD-09; LNTU20TD-16)
作者信息
    辽宁工程技术大学材料科学与工程学院,辽宁 阜新 123000
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2种不同金属材料的力学参数
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genus
种数
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species
占总种数比例
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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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