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对于可持续的金属电池而言,一个氧活性铁有机框架阴极

Yazhen Zhao¹, Shaopeng Chen¹, Miao Zhou¹

¹School of Chemistry and Chemical Engineering, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.

|August 7, 2024

概括

研究人员开发了一种可充电电池的新型铁二基金金属有机框架 (MOF). 这种双重氧化还原活性材料提供了高容量和稳定的储存,推进了可持续的能源解决方案.

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
储能储能储能储能储能储能

背景情况:

可充电电池 (RMB) 由于的丰富性和安全性,对可持续能源充满希望.
目前人民币的发展受限于缺乏高容量和稳定的储存高效的阴极材料在实际价格上.

研究的目的:

为高性能人民币设计和合成一种新的金属有机框架 (MOF) 阴极材料.
研究开发的MOF的电化学特性和储存机制.

主要方法:

一个3D铁的合成(III) -二基金 (Fe2(DHBQ) 3) MOF.
电化学表征包括容量,能量密度,功率密度和循环稳定性测试.
光谱分析和密度功能理论 (DFT) 计算,以了解氧化还原化学和离子扩散.

主要成果:

Fe2(DHBQ) 3 MOF的可逆容量高达395.3 mAh/g,能量密度为463.5 Wh/kg.
该材料表现出极好的循环稳定性,在2000mA/g下保持5000个循环的性能,其高功率密度为2456.0W/kg.
光谱和DFT分析证实了Fe3+和DHBQ配体的双氧还原活性,促进可逆Mg2+储存.

结论:

双氧还原活性Fe2(DHBQ) 3MOF是高性能可充电电池的高效阴极材料.
这项工作为为下一代储能系统设计基于MOF的先进阴极材料开辟了新的途径.

关键词:

铁2 (((DHBQ) 3 的时间.阴极阴极是指一个阴极.金属有机框架 (MOF) 是指一个金属有机框架.有机物质是有机物质.可充电的金属电池可充电的金属电池

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