A Textile-Based Temperature-Tolerant Stretchable Supercapacitor for Wearable Electronics,Advanced Functional Materials

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A Textile-Based Temperature-Tolerant Stretchable Supercapacitor for Wearable Electronics
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2021-09-12 , DOI: 10.1002/adfm.202106491
Hanchan Lee ₁ , Gyusung Jung ₁ , Kayeon Keum ₁ , Jung Wook Kim ₁ , Hyein Jeong ₁ , Yong Hui Lee ₁ , Dong Sik Kim ₁ , Jeong Sook Ha _{1,

2}

Affiliation

Among the extensive development of wearable electronics, which can be implanted onto bodies or embedded in clothes, textile-based devices have gained significant attention. For daily basis applications, wearable energy storage devices are required to be stable under harsh environmental conditions and different deformational conditions. In this study, a textile-based stretchable supercapacitor with high electrochemical performance, mechanical stability, and temperature tolerance over a wide temperature range is reported. It exhibits high areal capacitances of 28.0, 30.4, and 30.6 mF cm⁻² at −30, 25, and 80 °C, respectively, while the capacitance remains stable over three repeated cycles of cooling and heating from −30 to 80 °C. The supercapacitor is stable under stretching up to 50% and 1000 repetitive cycles of stretching. A temperature sensor and an liquid-crystal display are simultaneously driven at temperatures between −20 and 80 °C by the supercapacitors. The supercapacitors are woven into a nylon glove power a micro-light-emitting diode stably regardless of the bending of the index finger. Furthermore, the encapsulated supercapacitors retain the capacitance during being immersed in water for a few days. This study demonstrates the potential application of the fabricated supercapacitor as a wearable energy storage device that works under extreme temperature variations, high humidity, and body movements.

中文翻译：

用于可穿戴电子产品的基于纺织品的耐高温可拉伸超级电容器

在可植入身体或嵌入衣服的可穿戴电子设备的广泛发展中，基于纺织品的设备受到了极大的关注。对于日常应用，可穿戴储能设备需要在恶劣的环境条件和不同的变形条件下保持稳定。在这项研究中，报道了一种基于纺织品的可拉伸超级电容器，在很宽的温度范围内具有高电化学性能、机械稳定性和耐温性。它具有 28.0、30.4 和 30.6 mF cm ^{-2 的}高面电容分别在 -30、25 和 80 °C，而电容在从 -30 到 80 °C 的三个重复冷却和加热循环中保持稳定。超级电容器在高达 50% 的拉伸和 1000 次重复拉伸循环下是稳定的。超级电容器在 -20 至 80 °C 的温度下同时驱动温度传感器和液晶显示器。超级电容器编织成尼龙手套，无论食指弯曲如何，都能稳定地为微型发光二极管供电。此外，封装的超级电容器在浸入水中数天期间仍能保持电容。这项研究证明了制造的超级电容器作为可穿戴储能设备的潜在应用，可在极端温度变化、高湿度和身体运动下工作。

更新日期：2021-09-12

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