Aluminum doping and lithium tungstate surface coating double effect to improve the cycle stability of lithium-rich manganese-based cathode materials
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| 1. | Title | Title of document | Aluminum doping and lithium tungstate surface coating double effect to improve the cycle stability of lithium-rich manganese-based cathode materials |
| 2. | Creator | Author's name, affiliation, country | Xuqiang Ren; School of materials science and engineering, Chang’an University; China |
| 2. | Creator | Author's name, affiliation, country | Donglin Li; School of materials science and engineering, Chang’an University; China |
| 2. | Creator | Author's name, affiliation, country | Zhenzhen Zhao; School of materials science and engineering, Chang’an University; China |
| 2. | Creator | Author's name, affiliation, country | Guangqi Chen; School of materials science and engineering, Chang’an University; China |
| 2. | Creator | Author's name, affiliation, country | Kun Zhao; School of materials science and engineering, Chang’an University; China |
| 2. | Creator | Author's name, affiliation, country | Xiangze Kong; School of materials science and engineering, Chang’an University; China |
| 2. | Creator | Author's name, affiliation, country | Tongxin Li; School of materials science and engineering, Chang’an University; China |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | Lithium-Ion Battery; Sol-Gel Method; Lithium-Rich Manganese-Based Cathode Material; Li2WO4; Al Doping |
| 4. | Description | Abstract | Al doped lithium-rich manganese-based Li1.2Mn0.54−xAlxNi0.13Co0.13O2 (x = 0, 0.03) cathode materials for lithium-ion batteries were synthesized with sol-gel method, and then Li2WO4 coating was prepared by one-step liquid phase method. The effects of Al doping and Li2WO4 coating on the electrochemical properties of lithium-rich manganese-based cathode materials were systematically studied. The results show that Al doping significantly improves the cycle stability of lithium-rich manganese-based cathode material, and the coating Li2WO4 significantly improves its magnification performance and the voltage attenuation of discharge plateau. The coating amount of Li2WO4 is 5%, and the specific capacity of Li1.2Mn0.51Al0.03Ni0.13Co0.13O2 cathode material is still up to about 110 mAh·g−1 in the charge and discharge voltage range of 2.0-4.8 V and the current density of 1,000 mA·g−1. At the same time, the capacity retention rate of 300 cycles at the current density of 100 mA·g−1 is 78%, and the voltage attenuation of the discharge plateau during the cycle is also significantly reduced. This work provides a new idea for solving the cycle stability and platform voltage attenuation of lithium-ion battery lithium-rich manganese-based cathode materials. |
| 5. | Publisher | Organizing agency, location | Arts and Science Press |
| 6. | Contributor | Sponsor(s) | |
| 7. | Date | (YYYY-MM-DD) | 2022-09-07 |
| 8. | Type | Status & genre | Peer-reviewed Article |
| 8. | Type | Type | |
| 9. | Format | File format | |
| 10. | Identifier | Uniform Resource Identifier | https://systems.enpress-publisher.com/index.php/ACE/article/view/1642 |
| 10. | Identifier | Digital Object Identifier (DOI) | https://doi.org/10.24294/ace.v5i2.1642 |
| 11. | Source | Title; vol., no. (year) | Applied Chemical Engineering (Transferred); Vol 5, No 2 (Published) |
| 12. | Language | English=en | |
| 14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
| 15. | Rights | Copyright and permissions |
Copyright (c) 2022 Xuqiang Ren, Donglin Li, Zhenzhen Zhao, Guangqi Chen, Kun Zhao, Xiangze Kong, Tongxin Li This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |