Chen Xu, Zhong Cheng, Liu Bin, Liu Zhi, Bi Xuanxuan, Zhao Naiqing, Han Xiaopeng, Deng Yida, Lu Jun, Hu Wenbin
Department of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin, 300072, China.
Small. 2018 Oct;14(43):e1702987. doi: 10.1002/smll.201702987. Epub 2018 Feb 1.
Flexible, wearable, and portable energy storage devices with high-energy density are crucial for next-generation electronics. However, the current battery technologies such as lithium ion batteries have limited theoretical energy density. Additionally, battery materials with small scale and high flexibility which could endure the large surface stress are highly required. In this study, a yarn-based 1D Zn-air battery is designed, which employs atomic layer thin Co O nanosheets as the oxygen reduction reaction/oxygen evolution reaction catalyst. The ultrathin nanosheets are synthesized by a high-yield and facile chemical method and show a thickness of only 1.6 nm, corresponding to few atomic layers. The 1D Zn-air battery shows high cycling stability and high rate capability. The battery is successfully knitted into clothes and it shows high stability during the large deformation and knotting conditions.
具有高能量密度的柔性、可穿戴和便携式储能设备对于下一代电子产品至关重要。然而，当前的电池技术如锂离子电池，其理论能量密度有限。此外，迫切需要具有小尺寸和高柔韧性且能承受大表面应力的电池材料。在本研究中，设计了一种基于纱线的一维锌空气电池，该电池采用原子层厚度的CoO纳米片作为氧还原反应/析氧反应催化剂。这些超薄纳米片通过高产率且简便的化学方法合成，厚度仅为1.6nm，相当于几个原子层。该一维锌空气电池具有高循环稳定性和高倍率性能。该电池已成功编织到衣服中，并且在大变形和打结条件下仍表现出高稳定性。
