| 用于高性能水系锌离子电池正极材料的富1T-MoS2纳米薄片的制备及性能 | |
| Preparation and performance of rich 1T-MoS2 nanosheets for high-performance aqueous zinc ion battery cathode materials | |
| 摘要: 通过一步水热法成功制备了一种水系锌离子电池正极材料——富1T相的MoS2(1T'-MoS2)。表征结果与密度泛函理论(DFT)模拟计算表明，1T'-MoS2的电导率明显高于2H-MoS2，并且含有丰富的硫缺陷。这有助于大幅提升离子扩散速率和电荷转移速率，优化材料的电化学和动力学性能。因此，采用1T'-MoS2组装的电池在0.1 A·g-1的电流密度下，首次放电容量高达202 mAh·g-1。此外，在大电流密度下(1 A·g-1)，其经过500次恒电流充放电循环后，电池的容量保持率为92%，显示出较高的容量和长循环稳定性。 | |
| 关键词: 水系锌离子电池 1T-MoS2 硫缺陷 正极材料 | |
| 基金项目: 黑龙江省省属高等学校基本科研业务经费科研项目(No.145209102)和国家自然科学基金项目(No.52072191)资助。 | |
| Abstract: A cathode material rich in 1T-MoS2 (1T'-MoS2) for aqueous zinc ion batteries was successfully synthesized via a one-step hydrothermal method. The characterization results and density functional theory (DFT) simulation calculations indicated that the conductivity of 1T'-MoS2 was significantly higher than that of 2H-MoS2, and 1T'-MoS2 contained abundant sulfur vacancies. That substantially enhances the ion diffusion and charge transfer rates, as well as the electrochemical and kinetic characteristics of the material. Therefore, the initial discharge capacity of the battery assembled with 1T'-MoS2 was as high as 202 mAh·g-1 at a current density of 0.1 A·g-1. In addition, at a high current density (1 A·g-1), the capacity retention rate was 92% after 500 cycles, showing good high capacity and long-cycle stability. | |
| Keywords: aqueous Zn-ion battery 1T-MoS2 sulfur defect cathode material | |
| 投稿时间：2024-09-19 修订日期：2024-12-25 | |
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| 樊鹏阳,樊姗,戴勤进,郑晓英,董伟,王梦雪,黄小潇,张永.用于高性能水系锌离子电池正极材料的富1T-MoS2纳米薄片的制备及性能[J].无机化学学报,2025,41(4):675-682. | |
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