Wearable supercapacitor based on polyaniline supported by graphene coated polyester textile. (6th September 2021)

• Record Type: Journal Article
• Authors: Huang, Dong; Zheng, Qiying; Guo, Kunkun; Chen, Xuli
• Is Part Of: International journal of energy research. Volume 45:Number 15(2021)
• Page Start: 21403
• Page End: 21413
• Publication Date: 2021-09-06
• Subjects: daily textile electrode -- graphene -- PANI -- supercapacitor -- wearable; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.7190
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: Wearable supercapacitors have broad application prospects in emerging portable devices. To realize the large‐scale application, it is necessary to develop a low‐cost and large‐scale method to fabricate wearable electrode with high electrochemical performance. Here, polyaniline supported by graphene coated polyester textile (PANI/GPT) electrode is prepared through a simple and low‐cost method. First, graphene ink with high concentration is prepared, and then the polyester textile is coated by graphene through a repeatedly soaking‐drying process. Subsequently, PANI/GPT electrode is prepared by electrochemical deposition of polyaniline (PANI) on graphene coated polyester textile. The ratio of PANI in the textile electrode has been systematically modified and the obtained textile electrode possesses good energy storage performance with specific capacitance reaching 896.50 F g −1 and good rate capability. The assembled flexible supercapacitor also owns excellent flexibility with capacitance retention of 95.10% after bending for up to 5000 cycles. Such high‐performance textile electrodes and the low‐cost method can be widely applied to develop other wearable energy storage devices. Abstract : Polyester textile (PT) and graphite are used as material resource for the preparation of flexible electrode. The PT is coated by graphene through soaking‐drying process and then polyaniline (PANI) is electrochemically deposited on it. The obtained textile electrode exhibits high specific capacitance of 896.50 F g −1 and excellent flexibility with capacitance retention of 95.10% after bending for 5, 000 cycles.