Preparation and properties of carbon nanofiberbased cathode materials for zinc-ion battery doped with rich oxygen deficiency MnOx
Rechargeable aqueous zinc-ion batteries (ZIBs) have been widely studied because of its excellent performance, low price and environment-friendly, and the structure design of ZIBs cathode with high capacity and long cycle life have become the focus. PAN solution containing Mn(NO3)2·xH2O was used as a...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2022-12-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000755 |
| _version_ | 1797965855718375424 |
|---|---|
| author | YAN Jun XIAO Yong XU Jing CHEN Lei LIU Yong |
| author_facet | YAN Jun XIAO Yong XU Jing CHEN Lei LIU Yong |
| author_sort | YAN Jun |
| collection | DOAJ |
| description | Rechargeable aqueous zinc-ion batteries (ZIBs) have been widely studied because of its excellent performance, low price and environment-friendly, and the structure design of ZIBs cathode with high capacity and long cycle life have become the focus. PAN solution containing Mn(NO3)2·xH2O was used as a core layer and PAN solution as skin layer by coaxial electrospinning. Due to the concentration gradient diffusion, Mn(NO3)2·xH2O diffused to the cortex. And MCNFs with sebaceous glandular structure on the surface was obtained by carbonization. MnO2 was electrodeposited on its surface, and MnO2@MCNFs cathode with excellent affinity with electrolytes were prepared. The results show that the sebaceous gland structure not only increases the specific surface area of cathode, but also constructs the riveting effect between MCNFs and α-MnO2, which enhances the interface bonding between the substrate and the active material, reduces the shedding of α-MnO2, reduces the interface resistance, and shortens the electron conduction and ion diffusion path. The test shows that the specific capacity of the first cycle of 3% MnO2@MCNFs can reach about 581.16 mAh/g under the current density of 100 mA/g, and the specific capacity of 120 mAh/g can be maintained after 1000 cycles under the high current density of 1 A/g, and the coulomb efficiency is around 99%. |
| first_indexed | 2024-04-11T02:06:33Z |
| format | Article |
| id | doaj.art-b32a69985003421fb1375c6012c8bad2 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:06:33Z |
| publishDate | 2022-12-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-b32a69985003421fb1375c6012c8bad22023-01-03T03:02:31ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812022-12-015012253410.11868/j.issn.1001-4381.2021.00075520221203Preparation and properties of carbon nanofiberbased cathode materials for zinc-ion battery doped with rich oxygen deficiency MnOxYAN Jun0XIAO Yong1XU Jing2CHEN Lei3LIU Yong4School of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaInstitute of Nonmetallic Materials of Shandong, Jinan 250031, ChinaTechnical Service Center of Quanzhou Customs, Quanzhou 362000, Fujian, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaRechargeable aqueous zinc-ion batteries (ZIBs) have been widely studied because of its excellent performance, low price and environment-friendly, and the structure design of ZIBs cathode with high capacity and long cycle life have become the focus. PAN solution containing Mn(NO3)2·xH2O was used as a core layer and PAN solution as skin layer by coaxial electrospinning. Due to the concentration gradient diffusion, Mn(NO3)2·xH2O diffused to the cortex. And MCNFs with sebaceous glandular structure on the surface was obtained by carbonization. MnO2 was electrodeposited on its surface, and MnO2@MCNFs cathode with excellent affinity with electrolytes were prepared. The results show that the sebaceous gland structure not only increases the specific surface area of cathode, but also constructs the riveting effect between MCNFs and α-MnO2, which enhances the interface bonding between the substrate and the active material, reduces the shedding of α-MnO2, reduces the interface resistance, and shortens the electron conduction and ion diffusion path. The test shows that the specific capacity of the first cycle of 3% MnO2@MCNFs can reach about 581.16 mAh/g under the current density of 100 mA/g, and the specific capacity of 120 mAh/g can be maintained after 1000 cycles under the high current density of 1 A/g, and the coulomb efficiency is around 99%.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000755sebaceous gland structuremnox@mcnfsfree-standingelectrochemical depositionzibs |
| spellingShingle | YAN Jun XIAO Yong XU Jing CHEN Lei LIU Yong Preparation and properties of carbon nanofiberbased cathode materials for zinc-ion battery doped with rich oxygen deficiency MnOx Cailiao gongcheng sebaceous gland structure mnox@mcnfs free-standing electrochemical deposition zibs |
| title | Preparation and properties of carbon nanofiberbased cathode materials for zinc-ion battery doped with rich oxygen deficiency MnOx |
| title_full | Preparation and properties of carbon nanofiberbased cathode materials for zinc-ion battery doped with rich oxygen deficiency MnOx |
| title_fullStr | Preparation and properties of carbon nanofiberbased cathode materials for zinc-ion battery doped with rich oxygen deficiency MnOx |
| title_full_unstemmed | Preparation and properties of carbon nanofiberbased cathode materials for zinc-ion battery doped with rich oxygen deficiency MnOx |
| title_short | Preparation and properties of carbon nanofiberbased cathode materials for zinc-ion battery doped with rich oxygen deficiency MnOx |
| title_sort | preparation and properties of carbon nanofiberbased cathode materials for zinc ion battery doped with rich oxygen deficiency mnox |
| topic | sebaceous gland structure mnox@mcnfs free-standing electrochemical deposition zibs |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000755 |
| work_keys_str_mv | AT yanjun preparationandpropertiesofcarbonnanofiberbasedcathodematerialsforzincionbatterydopedwithrichoxygendeficiencymnox AT xiaoyong preparationandpropertiesofcarbonnanofiberbasedcathodematerialsforzincionbatterydopedwithrichoxygendeficiencymnox AT xujing preparationandpropertiesofcarbonnanofiberbasedcathodematerialsforzincionbatterydopedwithrichoxygendeficiencymnox AT chenlei preparationandpropertiesofcarbonnanofiberbasedcathodematerialsforzincionbatterydopedwithrichoxygendeficiencymnox AT liuyong preparationandpropertiesofcarbonnanofiberbasedcathodematerialsforzincionbatterydopedwithrichoxygendeficiencymnox |