| Hierarchical N-doped carbon nanocages/carbon textiles as a flexible O2 electrode for Li–O2 batteries |
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| 作者姓名： | Jia Liu Dan Li Siqi Zhang Ying Wang Guiru Sun Zhao Wang Haiming Xie Liqun Sun |
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| 作者单位： | Nation&Local United Engineering Laboratory for Power Batteries |
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| 基金项目： | supported by National Key R&D Program of China(2016YFB0100500);Special fund of key technology research and development projects(20180201097GX)(20180201099GX)(20180201096GX);Jilin Province Science and Technology Department.The R&D Program of power batteries with low temperature and high energy,Science and Technology Bureau of Changchun(19SS013);Key Subject Construction of Physical Chemistry of Northeast Normal University;General Financial Grant from the China Postdoctoral Science Foundation(Grant 2016M601363);Fundamental Research Funds for the Central Universities(Grant2412017QD011);Jilin Scientific and Technological Development Program(Grant 20180520143JH);National Natural Science Foundation of China(Grant 21805030)。 |
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| 摘 要： | The conventional Li–O2 battery(LOB)has hardly been considered as a next-generation flexible electronics thus far,since it is bulk,inflexible and limited by the absence of an adjustable cell configuration.Here,we present a flexible Li–O2 cell using N-doped carbon nanocages grown onto the carbon textiles(NCNs/CTs)as a self-standing and binder-free O2 electrode.The highly flexible NCNs/CTs exhibits an excellent mechanic durability,a promising catalytic activity towards the ORR and OER,a considerable cyclability of more than 70 cycles with an overpotential of 0.36 V on the 1 stcycle at a constant current density of 0.2 m A/cm2,a good rate capability,a superior reversibility with formation and decomposition of desired Li2 O2,and a highly electrochemical stability even under stringent bending and twisting conditions.Our work represents a promising progress in the material development and architecture design of O2 electrode for flexible LOBs.
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| 关 键 词： | N-doped carbon nanocages/carbon textiles Flexible Binder-free Li–O2 batteries |
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