journal article·2024-01-23

Highly Conductive Yarn Cathode Coated with Polypyrrole as a Flexible Battery for Wearables

Xiao-xuan Fan, Mei-Chen Lin, Jia-Horng Lin, Xiangdong Fu, Xiaoyang Zhang, Baolei Shen, Xilin Liao, Lu Zhang, Ting-Ting Li, Ching-Wen Lou

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Abstract

The practical application of yarn electrode materials has been restricted because of the inherent insulating properties and adverse electrochemical properties of conventional yarns. The aim of the study was to make yarn electrodes with higher specific capacitance and construct a type of yarn-like manganese dioxide (MnO 2 ) electrode. In this work, polyacrylonitrile-wrapped carbon fibers (CFs) core-spun yarn (CFP core spun yarn) was prepared by electrospinning with CF yarn as the base material. The highly conductive yarn (CFPP yarn) was then prepared by depositing polypyrrole nanoparticles by in situ polymerization on top of the CFP cored yarn. Finally, based on CFPP yarn, the CFPP@MnO 2 yarn cathode material was prepared by coating MnO 2 on CFPP yarn by an impregnation coating method. The CFPP@MnO 2 yarn cathode showed outstanding electrochemical performance in the three-electrode system test, maintaining 89.76% of the initial capacity after 100 charge–discharge cycles at a current density of 1 mA cm –1, which indicates that the CFPP@MnO 2 yarn cathode has outstanding cycling stability. The yarn cell can therefore be used as the cathode electrode for yarn batteries, providing an effective strategy for applications in smart textiles and wearable electronics.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China

Department of Biomedical Engineering, College of Biomedical Engineering, China Medical University, Taichung 404333, Taiwan

Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China

Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City 407102, Taiwan

School of Chinese Medicine, China Medical University, Taichung City 404333, Taiwan

Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, China

College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China

Department of Bioinformatics and Medical Engineering, Asia University, Taichung City 413305, Taiwan

Department of Medical Research, China Medical University Hospital, China Medical University, Taichung City 404333, Taiwan

Funding

China National Textile and Apparel Council

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