具有定向通道和大质量负载的三维拉衍生电极,用于高性能水性离子电池

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Hanrui Zhao¹, Minfeng Chen¹, Jiaqi Yu¹

¹Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.

Journal of colloid and interface science

|September 20, 2024

概括

研究人员开发了一种新的3D电流收集器,用于水性离子电池 (AZIB). 这种具有成本效益的阴极使MnO2的高质量负载成为可能,大大提高了储能性能和循环寿命.

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:

水性离子电池 (AZIB) 由于其安全性和低成本,对大规模储能充满希望.
在AZIB中,有限的能量密度需要具有高质量负载的阴极.
开发高效的3D电流收集器对于提高阴极性能至关重要.

研究的目的:

为AZIBs创建一个具有成本效益和高性能的3D电流收集器.
为了增加能量密度,使活性物质的大量负载成为可能.
为了提高AZIB阴极的电化学性能和循环稳定性.

主要方法:

拉被转换成一个3D碳电流采集器使用紫外线脱和碳化.
一个3D MnO2阴极具有10毫克厘米-2的高负荷被制造使用泥粘合方法.
评估了电化学性能,包括面积容量和循环稳定性.

主要成果:

这种由3D拉制成的电流收集器表现出优异的结构和电化学性能.
3D MnO2 阴极在0.1 A/g时实现了3.65 mAh cm-2的高面积容量.
在高负载下1000个循环后,阴极表现出了60.2%的显著容量保留.

结论:

介绍了一种简单且低成本的方法,用于制造AZIB的高性能3D阴极.
开发的3D阴极策略有效地提高了面积容量和循环稳定性.
这种方法为推进具有成本效益和高能量密度的AZIB提供了可行的途径.

关键词:

3D层级多孔电极 3D层级多孔电极水性离子电池的水性离子电池定向通道定向通道很大的面积容量.拉的利用方式

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