@article{Lyu_Seong_Kim_Zhang_Jin_Kim_Jeon_Kang_Piao_2019, title={CNT/High Mass Loading MnO2/Graphene-Grafted Carbon Cloth Electrodes for High-Energy Asymmetric Supercapacitors}, volume={11}, url={https://nmlett.org/index.php/nml/article/view/150}, DOI={10.1007/s40820-019-0316-7}, abstractNote={<p>Flexible supercapacitor electrodes with high mass loading are crucial for obtaining favorable electrochemical performance but still challenging due to sluggish electron and ion transport. Herein, rationally designed CNT/MnO<sub>2</sub>/graphene-grafted carbon cloth electrodes are prepared by a “graft-deposit-coat” strategy. Due to the large surface area and good conductivity, graphene grafted on carbon cloth offers additional surface areas for the uniform deposition of MnO<sub>2</sub> (9.1&nbsp;mg&nbsp;cm<sup>−2</sup>) and facilitates charge transfer. Meanwhile, the nanostructured MnO<sub>2</sub> provides abundant electroactive sites and short ion transport distance, and CNT coated on MnO<sub>2</sub> acts as interconnected conductive “highways” to accelerate the electron transport, significantly improving redox reaction kinetics. Benefiting from high mass loading of electroactive materials, favorable conductivity, and a porous structure, the electrode achieves large areal capacitances without compromising rate capability. The assembled asymmetric supercapacitor demonstrates a wide working voltage (2.2&nbsp;V) and high energy density of 10.18&nbsp;mWh&nbsp;cm<sup>−3</sup>.</p> <p>Highlights:</p> <p>1 CNT/MnO<sub>2</sub>/graphene-grafted carbon cloth electrode is designed and achieves high MnO<sub>2</sub> mass loading (9.1 mg cm<sup>−2</sup>).<br>2 The electrode with favorable electronic/ionic conductivity delivers a large areal capacitance and rate capability.<br>3 The assembled asymmetric supercapacitor yields a large energy density of 10.18 mWh cm<sup>−3</sup>.</p>}, journal={Nano-Micro Letters}, author={Lyu, Lulu and Seong, Kwang‑dong and Kim, Jong Min and Zhang, Wang and Jin, Xuanzhen and Kim, Dae Kyom and Jeon, Youngmoo and Kang, Jeongmin and Piao, Yuanzhe}, year={2019}, month={Oct.}, pages={88} }