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Preparation and Electrochemical Properties of Li4Ti5O12@Porous-C Composite as Anode of Lithium Ion Battery
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Ming WANG, Pengfei FANG, Liang DU, Pengtao QI, Ding SHEN
Journal of the Chinese Ceramic Society | 2022, 50(2) : 364 - 371
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Journal of the Chinese Ceramic Society | 2022, 50(2): 364-371
• Research Articles •
Preparation and Electrochemical Properties of Li4Ti5O12@Porous-C Composite as Anode of Lithium Ion Battery
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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:

About Author:

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

Published: 2022-02-20 doi: 10.14062/j.issn.0454-5648.20210753
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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
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Year 2022 volume 50 Issue 2
17
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Article Info
doi: 10.14062/j.issn.0454-5648.20210753
  • Receive Date：2021-09-26
  • Online Date：2026-10-22
  • Published：2022-02-20
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  • Received：2021-09-26
  • Revised：2021-10-25
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    School of Materials Science and Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China
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表12种不同金属材料的力学参数
科
Family		 属数
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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