Strong and Robust Polyaniline‐Based Supramolecular Hydrogels for Flexible Supercapacitors,Angewandte Chemie International Edition

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Strong and Robust Polyaniline‐Based Supramolecular Hydrogels for Flexible Supercapacitors
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2016-06-22 , DOI: 10.1002/anie.201603417
Wanwan Li ₁ , Fengxian Gao ₁ , Xiaoqian Wang ₁ , Ning Zhang ₁ , Mingming Ma ₁

Affiliation

We report a supramolecular strategy to prepare conductive hydrogels with outstanding mechanical and electrochemical properties, which are utilized for flexible solid‐state supercapacitors (SCs) with high performance. The supramolecular assembly of polyaniline and polyvinyl alcohol through dynamic boronate bond yields the polyaniline–polyvinyl alcohol hydrogel (PPH), which shows remarkable tensile strength (5.3 MPa) and electrochemical capacitance (928 F g⁻¹). The flexible solid‐state supercapacitor based on PPH provides a large capacitance (306 mF cm⁻² and 153 F g⁻¹) and a high energy density of 13.6 Wh kg⁻¹, superior to other flexible supercapacitors. The robustness of the PPH‐based supercapacitor is demonstrated by the 100 % capacitance retention after 1000 mechanical folding cycles, and the 90 % capacitance retention after 1000 galvanostatic charge–discharge cycles. The high activity and robustness enable the PPH‐based supercapacitor as a promising power device for flexible electronics.

中文翻译：

强韧的基于聚苯胺的超分子水凝胶，用于柔性超级电容器

我们报告了一种超分子策略，以制备具有出色的机械和电化学性能的导电水凝胶，这些水凝胶可用于高性能的柔性固态超级电容器（SC）。聚苯胺和聚乙烯醇通过动态硼酸酯键的超分子组装产生了聚苯胺-聚乙烯醇水凝胶（PPH），显示出显着的拉伸强度（5.3 MPa）和电化学电容（928 F g ^-1）。基于PPH的柔性固态超级电容器可提供大电容（306 mF cm ^-2和153 F g ^-1）和13.6 Wh kg ^-1的高能量密度，优于其他柔性超级电容器。基于PPH的超级电容器的鲁棒性由1000次机械折叠循环后的100％电容保持率和1000次恒电流充放电循环后的90％电容保持率证明。高活性和坚固性使基于PPH的超级电容器成为柔性电子产品的有前途的功率器件。

更新日期：2016-06-22

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