Atomic Layer Co3O4 Nanosheets: The Key to Knittable Zn–Air Batteries,Small

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Atomic Layer Co3O4 Nanosheets: The Key to Knittable Zn–Air Batteries
Small ( IF 13.0 ) Pub Date : 2018-02-01 , DOI: 10.1002/smll.201702987
Xu Chen ₁ , Cheng Zhong _{2,

3} , Bin Liu ₁ , Zhi Liu ₁ , Xuanxuan Bi ₄ , Naiqing Zhao ₃ , Xiaopeng Han ₃ , Yida Deng ₃ , Jun Lu ₄ , Wenbin Hu _{2,

3}

Affiliation

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 Co₃O₄ 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.

中文翻译：

原子层Co3O4纳米片：可编织锌空气电池的关键

具有高能量密度的柔性，可穿戴和便携式能量存储设备对于下一代电子产品至关重要。然而，当前的电池技术例如锂离子电池具有有限的理论能量密度。另外，迫切需要具有小尺寸和高柔韧性的电池材料，其可以承受较大的表面应力。在这项研究中，设计了一种基于纱线的一维Zn-空气电池，该电池使用了原子层薄的Co ₃ O _4。纳米片作为氧还原反应/氧释放反应催化剂。超薄纳米片是通过高产且简便的化学方法合成的，其厚度仅为1.6 nm，对应于很少的原子层。一维Zn-空气电池显示出高循环稳定性和高倍率能力。该电池已成功编织成衣服，并且在较大的变形和打结条件下显示出很高的稳定性。

更新日期：2018-02-01

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