作为所有有机对称离子电池的电极材料的合协调聚合物与本佐基
Chenglu Liang1, Xuesong Cai1, Jinghang Lin1
1Center for Advanced Energy and Functional Materials, Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou, 350118, P. R. China.
ChemPlusChem
|December 5, 2023
概括
为离子电池开发了一种新的协调合聚合物电极材料. 这种先进的材料显示出出色的容量和稳定性,展示了未来电池技术的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 聚合物化学 聚合物化学
背景情况:
- 结合聚合物为储能提供可调节的性能.
- 开发高性能电极材料对于推进离子电池至关重要.
- 金属协调可以提高有机电极材料的电化学性能.
研究的目的:
- 通过使用2,3,5,6-四氨基-p-基 (TABQ) 合成和表征一种协调合聚合物.
- 评估Co-TABQ材料作为全有机对称离子电池的电极的性能.
- 研究开发材料的电荷转移机制和离子存储能力.
主要方法:
- 一种基于TABQ.Q的CO2+协调合聚合物的合成.
- 在半电池中对Co-TABQ材料进行电化学测试,作为阴极和阳极.
- 循环电压测量和静电电荷-放电循环,以评估容量,稳定性和速率性能.
- 分析由金属中心和功能组影响的电荷转移特性.
主要成果:
- 在对称电池中,Co-TABQ电极在50 mA g-1的50个循环后提供了超过100 mAh g-1.
- 作为阴极,Co-TABQ在20 mA g-1的150个循环后实现了133.3 mAh g-1,在500 mA g-1的4000个循环后保持了109.4 mAh g-1.
- 作为一个阳极,Co-TABQ表现出一个稳定的容量568.6mAhg-1在1Ag-1.
- 较低的电荷转移阻力和高效的Li+储存被归因于结合结构和活性功能组.
结论:
- 以金属为媒介的合聚合物,以Co-TABQ为例,显示出对高性能离子电池的重大前景.
- Co-TABQ 材料表现出卓越的循环稳定性和容量保留.
- 这项研究强调了通过金属协调设计先进的有机电极材料的潜力,用于下一代能源存储解决方案.
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