Biaxial Stretchability in High‐Performance, All‐Solid‐State Supercapacitor with a Double‐Layer Anode and a Faradic Cathode Based on Graphitic‐2200 Knitted Carbon Fiber,Advanced Energy Materials

当前位置： X-MOL 学术 › Adv. Energy Mater. › 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.)

Biaxial Stretchability in High‐Performance, All‐Solid‐State Supercapacitor with a Double‐Layer Anode and a Faradic Cathode Based on Graphitic‐2200 Knitted Carbon Fiber
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2020-11-20 , DOI: 10.1002/aenm.202002961
Bipeen Dahal _{1,

2} , Kisan Chhetri ₁ , Alagan Muthurasu ₁ , Tanka Mukhiya _{1,

3} , Arjun Prasad Tiwari _{1,

4} , Jagadis Gautam ₅ , Jun Youb Lee ₆ , Dong Chul Chung ₆ , Hak Yong Kim _{1,

7}

Affiliation

Large reversible biaxial (xy) stretching in energy storage devices is now an urgent requirement for the field of stretchable electronics to enable reliability in practical applications. Here, a fascinating stretching machine is designed and used for xy‐stretching of a high‐performance supercapacitor device without performance degradation. A trimetallic metal organic framework (MOF)‐derived ternary metal oxide on graphitic‐2200 knitted carbon fiber (MOF‐ZNCO@g‐KCF), activated carbon loaded onto drilled knitted carbon fiber (AC@g‐KCF‐d), and a poly‐vinyl alcohol, poly‐ethylene oxide, and potassium hydroxide (PVA/PEO/KOH) based hydrogel polymer film are used as a faradic cathode, a double layer anode, and an electrolyte, respectively, to integrate the biaxially stretchable asymmetric supercapacitor (BSASC) device. The fabricated MOF‐ZNCO@g‐KCF//AC@g‐KCF‐d BSASC maintains an outstanding performance consistency at different xy‐stretched conditions, even after repeated deformations. Notably, after 10 000 galvanostatic charge–discharge cycles, the BSASC in the xy‐biaxial stretched condition is retained at 93.7%, and after 100 successive stretch–relax cycles for the same stretching dimension it still retains a 92.48% capacity, demonstrating excellent mechanical and electrochemical stability. The exceptional performance consistency in the xy‐stretched position, demonstrates that the BSASC is one of the best performers among the stretchable supercapacitors reported to date.

中文翻译：

基于Graphitic-2200编织碳纤维的高性能，全固态超级电容器具有双层阳极和法拉第阴极的双轴拉伸性

储能装置中的大可逆双轴（xy）拉伸现在是可拉伸电子领域迫切需要的，以确保实际应用中的可靠性。在这里，设计了一种引人入胜的拉伸机，用于xy拉伸高性能超级电容器器件而不会降低性能。石墨2200编织碳纤维（MOF-ZNCO @ g-KCF）上的三金属金属有机骨架（MOF）衍生的三元金属氧化物，活性炭加载到钻孔的编织碳纤维（AC @ g-KCF-d）上基于聚乙烯醇，聚环氧乙烷和氢氧化钾（PVA / PEO / KOH）的水凝胶聚合物薄膜分别用作法拉第阴极，双层阳极和电解质，以集成双轴可拉伸不对称超级电容器（ BSASC）设备。制成的MOF-ZNCO @ g-KCF // AC @ g-KCF-d BSASC在不同的xy拉伸条件下，即使经过反复变形，仍保持出色的性能一致性。值得注意的是，经过1万次恒电流充放电循环后，BSASCxy双轴拉伸条件保持在93.7％，并且在相同拉伸尺寸下连续100次拉伸-松弛循环后，它仍然保持92.48％的容量，显示出优异的机械和电化学稳定性。xy拉伸位置的出色性能一致性证明，BSASC是迄今为止报道的可拉伸超级电容器中性能最好的之一。

更新日期：2020-11-20

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