{"id":266341,"date":"2021-06-03T15:20:11","date_gmt":"2021-06-03T12:20:11","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/scientists-develop-integrated-electrodes-for-high-energy-density-flexible-supercapacitors\/"},"modified":"2021-06-03T15:20:11","modified_gmt":"2021-06-03T12:20:11","slug":"scientists-develop-integrated-electrodes-for-high-energy-density-flexible-supercapacitors","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/scientists-develop-integrated-electrodes-for-high-energy-density-flexible-supercapacitors\/","title":{"rendered":"#Scientists develop integrated electrodes for high-energy-density flexible supercapacitors"},"content":{"rendered":"

“#Scientists develop integrated electrodes for high-energy-density flexible supercapacitors<\/strong>”<\/p>\n

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\"Scientists
\n Figure 1. Schematic diagram of the formation process of CoN-Ni3N\/N-C\/CC, VN\/CC, and the assembly of the flexible quasi-solid-state asymmetric supercapacitor device. Credit: LI Kunzhen
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Recently, a research team led by Prof. Zhao Bangchuan from the Institute of Solid Materials of the Hefei Institutes of Physical Science<\/a> (HFIPS) synthesized 3D porous honeycomb-like CoN-Ni3<\/sub>N\/N-C nanosheets and vanadium nitride (VN) nanobelt arrays via in-situ growth method, respectively, and constructed a high-energy-density flexible supercapacitor device. The result has been published in Advanced Functional Materials<\/i>.<\/p>\n

Transition metal nitrides (TMNs) are potential electrode materials for high-performance energy storage devices, but the structural instability severely hinders their app<\/a>lication. Therefore it is urgent to construct advanced cathode materials for flexible, wearable, long-life and high-energy-density energy storage devices.<\/p>\n

In this research, scientists designed and fabricated an integrated cathode with 3D porous honeycomb-like CoN-Ni3<\/sub>N\/N-C nanosheets, which were grown on flexible carbon cloth (CC) via a mild solvothermal method after post-nitrogenizing treatment.<\/p>\n

Further experiments proved that the intrinsic conductivity was enhanced, and concentration of the active sites was increased. It gives advantage to the optimized CoN-Ni3<\/sub>N\/N-C\/CC, which can be used as an integrated electrode for the supercapacitor to achieves remarkable electrochemical performance.<\/p>\n

This supercapacitor delivers an excellent energy density of 106 \u03bcWh cm2<\/sup> with maximum power density of 40 mW cm2<\/sup>, displaying an outstanding cycle stability.<\/p>\n

This work provides a viable strategy to construct high-energy flexible wearable electronics in next-generation electrochemical energy storage field.<\/p>\n

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\"Scientists
\n Figure 2. SEM images of (a-c) Co-Ni LDH\/CC, (d-f) CoN-Ni3<\/sub>N\/N-C\/CC, and (g-i)VN\/CC at different magnification. Credit: LI Kunzhen
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One-step method to improve performance of cathode materials in Na-ion batteries\n <\/p><\/div>\n

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\n More information:<\/strong>
\n Kunzhen Li et al, 3D Porous Honeycomb\u2010Like CoN\u2010Ni 3 N\/N\u2010C Nanosheets Integrated Electrode for High\u2010Energy\u2010Density Flexible Supercapacitor, Advanced Functional Materials<\/i> (2021). DOI: 10.1002\/adfm.202103073<\/a><\/p><\/div>\n
\n Provided by
\n Chinese Academy of Sciences
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Citation<\/strong>:
\n Scientists develop integrated electrodes for high-energy-density flexible supercapacitors (2021, June 3)
\n retrieved 4 June 2021
\n from https:\/\/techxplore.com\/news<\/a>\/2021-06-scientists-electrodes-high-energy-density-flexible-supercapacitors.html<\/p>\n

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\n part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n