The development of lightweight,flexible,and stretchable energy storage systems is essential for state-of-the-art electronic devices.We propose a new and broad strategy to fabricate a stretchable and conductive GO/CNTs...The development of lightweight,flexible,and stretchable energy storage systems is essential for state-of-the-art electronic devices.We propose a new and broad strategy to fabricate a stretchable and conductive GO/CNTs-TPU fiber electrode by direct wet spinning,from which a flexible fibrous supercapacitor is fabricated.The fibrous electrode exhibits a high strength of 11.68 MPa,high conductivity of 342 S/cm,and high specific capacitances(21.8 mF/cm,36.45 F/cm^3,and 95 F/g).The specific capacitance of the assembled all-solid-state hybrid fiber-shaped supercapacitor reaches 14.3 F/cm^3.After 5000 charge-discharge cycles,97%of the capacitance of the hybrid supercapacitor is maintained.These high-strength electrochemical electrode materials could be potential candidates for applications in practical and large-scale energy storage systems and textile clothes.展开更多
基金supported by the Fundamental Research Funds for the Central Universities(No.2232019A3-02)DHU Distinguished Young Professor Program(No.LZB2019002)+1 种基金Young Elite Scientists Sponsorship Program by CAST(No.2017QNRC001)J.L.acknowledges funding provided by the Donghua University Doctoral Innovation Fund Program(Nos.17D310606,106-06-0019058).
文摘The development of lightweight,flexible,and stretchable energy storage systems is essential for state-of-the-art electronic devices.We propose a new and broad strategy to fabricate a stretchable and conductive GO/CNTs-TPU fiber electrode by direct wet spinning,from which a flexible fibrous supercapacitor is fabricated.The fibrous electrode exhibits a high strength of 11.68 MPa,high conductivity of 342 S/cm,and high specific capacitances(21.8 mF/cm,36.45 F/cm^3,and 95 F/g).The specific capacitance of the assembled all-solid-state hybrid fiber-shaped supercapacitor reaches 14.3 F/cm^3.After 5000 charge-discharge cycles,97%of the capacitance of the hybrid supercapacitor is maintained.These high-strength electrochemical electrode materials could be potential candidates for applications in practical and large-scale energy storage systems and textile clothes.
