State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200438 (China).
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200438 (China).
Angew Chem Int Ed Engl. 2015 Dec 14;54(51):15390-4. doi: 10.1002/anie.201508848. Epub 2015 Oct 30.
The fabrication of flexible, stretchable and rechargeable devices with a high energy density is critical for next-generation electronics. Herein, fiber-shaped Zn-air batteries, are realized for the first time by designing aligned, cross-stacked and porous carbon nanotube sheets simultaneously that behave as a gas diffusion layer, a catalyst layer, and a current collector. The combined remarkable electronic and mechanical properties of the aligned carbon nanotube sheets endow good electrochemical properties. They display excellent discharge and charge performances at a high current density of 2 A g(-1) . They are also flexible and stretchable, which is particularly promising to power portable and wearable electronic devices.
制造具有高能量密度的柔性、可拉伸和可再充电器件对于下一代电子学至关重要。在此，通过设计同时排列、交叉堆叠和多孔的碳纳米管片，首次实现了纤维状锌空气电池，其作为气体扩散层、催化剂层和集流器。排列碳纳米管片的卓越的电子和机械性能结合赋予了良好的电化学性能。它们在 2 A g(-1)的高电流密度下显示出优异的放电和充电性能。它们还具有柔韧性和拉伸性，这对于为便携式和可穿戴电子设备提供动力具有很大的应用前景。
