Autonomous Self-Healing of Highly Stretchable Supercapacitors at All Climates,Nano Letters

当前位置： X-MOL 学术 › Nano Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Autonomous Self-Healing of Highly Stretchable Supercapacitors at All Climates
Nano Letters ( IF 9.6 ) Pub Date : 2022-06-24 , DOI: 10.1021/acs.nanolett.2c01635
Jing Dai ₁ , Haili Qin ₁ , Wen-Xuan Dong ₁ , Huai-Ping Cong ₁ , Shu-Hong Yu ₂

Affiliation

Realizing autonomous self-healing and high stretchability of flexible supercapacitors over a wide temperature range remains a big challenge because of simultaneous incorporation of self-healing, stretchable and temperature-tolerant elements into a device as well as unfavorable electrochemical kinetics in harsh conditions. Here, we demonstrate for the first time an autonomous self-healing and intrinsically stretchable supercapacitor that can work at all-climate environments assembled by universally self-healing and highly stretchable organohydrogel electrodes with record-high temperature-invariant conductivity of ∼965 S/cm. Benefiting from multiple hydrogen bonding and dynamic metal coordination combined with electrochemistry-favorable components and integrated device configuration, the supercapacitor exhibits outstanding long-term stability, high stretchability, instantaneous and complete capacitive self-healability, and real-time mechanical healing at harsh temperatures from −35 to 80 °C. The superiorities in stretchability, self-healability, and all-climate tolerance enable the supercapacitor presented here as the best performer among the flexible supercapacitors reported to date.

中文翻译：

高度可拉伸超级电容器在所有气候条件下的自主自愈

实现柔性超级电容器在宽温度范围内的自主自愈和高拉伸性仍然是一个巨大的挑战，因为同时将自愈、可拉伸和耐温元素结合到设备中，以及在恶劣条件下不利的电化学动力学。在这里，我们首次展示了一种自主自愈和本质上可拉伸的超级电容器，该超级电容器可以在所有气候环境下工作，由通用自愈和高度可拉伸的有机水凝胶电极组装而成，具有创纪录的~965 S/cm 的高温不变电导率. 得益于多重氢键和动态金属配位以及电化学有利的组件和集成器件配置，超级电容器表现出出色的长期稳定性，高拉伸性、瞬时和完全的电容自愈性，以及在-35至80°C的苛刻温度下的实时机械愈合。在可拉伸性、自愈性和所有气候耐受性方面的优势使这里展示的超级电容器成为迄今为止报道的柔性超级电容器中表现最好的。

更新日期：2022-06-24

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11