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| Performance of oxygen vacancy-rich V-doped MnO2 for high-performance aqueous zinc ion battery |
| Author Name | Affiliation | E-mail | | DAI Qinjin | College of Material Science and Engineering, Qiqihar University, Qiqihar, Heilongjiang 106000, China | | | FAN Shan | College of Material Science and Engineering, Qiqihar University, Qiqihar, Heilongjiang 106000, China | 15804528735@163.com | | FAN Pengyang | College of Material Science and Engineering, Qiqihar University, Qiqihar, Heilongjiang 106000, China | | | ZHENG Xiaoying | College of Material Science and Engineering, Qiqihar University, Qiqihar, Heilongjiang 106000, China | | | DONG Wei | College of Material Science and Engineering, Qiqihar University, Qiqihar, Heilongjiang 106000, China | | | WANG Mengxue | College of Material Science and Engineering, Qiqihar University, Qiqihar, Heilongjiang 106000, China | | | ZHANG Yong | College of Material Science and Engineering, Qiqihar University, Qiqihar, Heilongjiang 106000, China | leon1981@163.com |
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| Abstract: V-doped MnO2 (VMO) was prepared as the aqueous zinc ion battery (ZIB) cathode by a simple hydrothermal method and its electrochemical performance was tested. The material characterization and electrochemical performance test indicated that the bismuth was evenly incorporated into MnO2. V doping expanded the interlayer spacing of MnO2, increased the specific surface area, and improved its internal ionic conductivity. The initial discharge capacity of the assembled ZIB reached 362 mAh·g-1 at a current density of 0.1 A·g-1. The doping of V made the lattice structure of MnO2 more stable, weakened the Jahn-Teller distortion effect, and improved the structural stability of the electrode material. The specific capacity remained 87% of the initial stage after 300 cycles at a 1 A·g-1 current density. |
| Keywords: zinc ion battery MnO2 V-doping high specific capacitance |
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| DAI Qinjin,FAN Shan,FAN Pengyang,ZHENG Xiaoying,DONG Wei,WANG Mengxue,ZHANG Yong.Performance of oxygen vacancy-rich V-doped MnO2 for high-performance aqueous zinc ion battery[J].Chinese Journal of Inorganic Chemistry,2025,41(3):453-460. |
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