具有同轴纤维结构的高性能锂空气电池。
High-Performance Lithium-Air Battery with a Coaxial-Fiber Architecture.
机构信息
State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, 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.
出版信息
Angew Chem Int Ed Engl. 2016 Mar 24;55(14):4487-91. doi: 10.1002/anie.201511832. Epub 2016 Mar 1.
The lithium-air battery has been proposed as the next-generation energy-storage device with a much higher energy density compared with the conventional lithium-ion battery. However, lithium-air batteries currently suffer enormous problems including parasitic reactions, low recyclability in air, degradation, and leakage of liquid electrolyte. Besides, they are designed into a rigid bulk structure that cannot meet the flexible requirement in the modern electronics. Herein, for the first time, a new family of fiber-shaped lithium-air batteries with high electrochemical performances and flexibility has been developed. The battery exhibited a discharge capacity of 12,470 mAh g(-1) and could stably work for 100 cycles in air; its electrochemical performances were well maintained under bending and after bending. It was also wearable and formed flexible power textiles for various electronic devices.
锂空电池被认为是下一代储能设备，与传统的锂离子电池相比，其能量密度要高得多。然而，锂空电池目前存在巨大的问题，包括寄生反应、在空气中的低可回收性、降解和液体电解质泄漏。此外，它们被设计成刚性的块状结构，无法满足现代电子产品的灵活性要求。在此，首次开发了一种具有高电化学性能和柔韧性的新型纤维状锂空电池。该电池的放电容量为 12,470 mAh g(-1)，在空气中稳定工作 100 个循环；其电化学性能在弯曲和弯曲后都能得到很好的保持。它还具有可穿戴性，并为各种电子设备形成了灵活的电力纺织品。
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