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基于低蒸汽压力液体电解质的热稳定和形状适应的三电纳米发电机

Teklebrahan Gebrekrstos Weldemhret¹, Nebiyou Tadesse Debele², Sofonias Nursefa Kedir²

¹Department of Physics, Dongguk University, Seoul, 04620, Republic of Korea.

Small (Weinheim an der Bergstrasse, Germany)

|April 22, 2025

概括

这项研究介绍了一种新的液电极 triboelectric 纳米发电机 (TENG),使用低蒸汽压液体来克服干燥问题. 这些稳定,可拉伸的TENG能够有效地从运动中获取能量,即使在高温下也是如此.

科学领域:

材料科学材料科学材料科学
收集能源收集能源
纳米技术纳米技术

背景情况:

基于水溶液的液电极 triboelectric 纳米发电机 (TENGs) 提供了出色的伸展性和适应性.
这些TENGs的一个显著的局限性是它们易受干燥的影响,导致运行故障.
开发具有增强稳定性的TENG,特别是在高温下,对于实际应用至关重要.

研究的目的:

开发一种稳定,可伸缩和适应形状的TENG,克服传统水性TENG的干燥限制.
研究使用低蒸气压液体 (LVPL) 作为电极,以提高高温性能.
评估开发的LVPL-TENGs的能量收集能力和潜在的传感应用.

主要方法:

使用分支聚乙烯胺 (bPEI) 或胆/甘油 (ChCl:Gly) 作为液体电极制造低蒸汽压液体电极TENG (LVPL-TENG).
在各种条件下测试LVPL-TENG的功率密度和能量采集效率,包括高温和拉伸到400%.
评估LVPL-TENGs的长期稳定性,通过在100°C下保存24小时,并评估它们的电力输出.

主要成果:

在LVPL-TENGs展示了大约6.2Wm−2 (bPEI) 和4.0Wm−2 (ChCl:Gly) 的高功率密度.
这些设备表现出了显著的能量收获能力,即使拉伸到400%,在长时间的高温储存后也保持了稳定的电力输出.
LVPL-TENGs成功地从小型生理运动中收集能量,并显示出作为自动供电的触觉传感器的潜力.

结论:

开发的LVPL-TENG为水性TENG的干燥问题提供了有前途的解决方案,可在高温下稳定运行.
这些可伸缩和可适应形状的TENG表现出来自各种运动的高效能量收获,并且在人机交互和传感方面具有潜力.
这项研究为在苛刻的环境中部署强大而多功能的TENG开辟了新的途径.

关键词:

能源收获机的能源收获机液体三电式纳米发电机.可伸缩和可变形的电子产品触觉传感器触觉传感器

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