长寿命与超高容量灵活电极在实用质量负荷为电池超级电容器混合
Man Singh1, Alankar Kafle1, Divyani Gupta1
1Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India.
Small (Weinheim an der Bergstrasse, Germany)
|September 19, 2025
概括
研究人员使用过纸开发了环保,可生物降解的柔性电极,用于先进的电池超级电容混合动力. 这些电极为便携式电子产品提供高能量密度和稳定性.
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:
- 设计具有成本效益的,可生物降解的柔性电极用于高性能储能仍然具有挑战性.
- 工业标准要求高质量负载 (>10毫克/厘米-2) 对于稳定和耐用的设备.
研究的目的:
- 为环保电池超级电容混合动力 (BSH) 设计和制造柔性,可生物降解的电极.
- 使用易于获得的材料,实现高质量负载和优越的电化学性能.
主要方法:
- 在实验室过纸 (FP) 上无电沉积一个NiB层,以产生导电的Ni/NiB-FP.
- 铁化物 (NiFeP) 活性物质的电子沉积到Ni/NiB-FP上,以达到高质量负荷 (4.517 mg cm−2).
- 电化学激活和NiFeP@Ni/NiB-FP电极的表面重建.
主要成果:
- NiFeP@Ni/NiB-FP电极 (17 mg cm−2) 的超高面积电容为37.5 F cm−2 在5 mA cm−2.2.
- 异常速率能力 (在30 mA cm-2下保持90.6%) 和超稳定的循环性能 (在1329小时后保持37.4 F cm-2).
- 一个由四个BSH电池组成的合装置实现了高达6V的稳定工作电压,为多个电子设备供电.
结论:
- 开发的灵活的基于纸张的电极对下一代可持续的储能解决方案充满希望.
- 这种制造方法为生产高性能柔性电极提供了可扩展和具有成本效益的方法.
- 展示的应用突出了这些可生物降解的储能设备的多功能性和实际潜力.
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