Flexible metal–gas batteries: a potential option for next-generation power accessories for wearable electronics,Energy & Environmental Science

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Flexible metal–gas batteries: a potential option for next-generation power accessories for wearable electronics
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2020-03-11 , DOI: 10.1039/d0ee00039f
Jingwen Zhou _{1,

2,

3,

4} , Jianli Cheng _{1,

2,

3,

4} , Bin Wang _{1,

2,

3,

4} , Huisheng Peng _{5,

6,

7,

8} , Jun Lu _{9,

10,

11,

12}

Affiliation

Flexible metal–gas batteries have become increasingly attractive for use in wearable electronics in the recent years due to their large theoretical energy density and superior adaptability to irregular geometric surfaces, such as the human body. With continuous improvements in design strategies and assembly technologies, the fabrication of various advanced flexible metal–gas batteries has been attempted. In spite of these efforts, the synchronous integration of high flexibility, safety, comfort, and high performance into flexible metal–gas batteries with specifically functionalized configurations still remains a formidable challenge. To resolve these dilemmas, the redesign of cathode catalysts, gel polymer electrolyte, and battery configurations/components has been investigated. In this paper, we review the recent technical advances together with the major dilemmas facing currently available flexible metal–gas batteries, highlighting how flexible cathodes and gel polymer electrolytes with various structures and components can affect the electrochemical performance and functionality of flexible metal–gas batteries. Flexible Zn–air, Li–O₂/air, and Li–CO₂ batteries are mainly exemplified to elucidate their promising potential. Finally, based on our considerations, unresolved technical hurdles and future research perspectives involving flexible metal–gas batteries for wearable electronics are proposed.

中文翻译：

柔性金属-气体电池：可穿戴电子设备的下一代电源配件的潜在选择

近年来，柔性金属-气体电池由于其较高的理论能量密度和对不规则几何形状表面（如人体）的出色适应性，在可穿戴电子产品中变得越来越有吸引力。随着设计策略和组装技术的不断改进，已经尝试制造各种先进的柔性金属气电池。尽管做出了这些努力，将高灵活性，安全性，舒适性和高性能同步集成到具有特定功能配置的柔性金属气电池中仍然是一个巨大的挑战。为了解决这些难题，已经研究了阴极催化剂，凝胶聚合物电解质和电池配置/组件的重新设计。在本文中，我们回顾了最新的技术进展以及当前可用的柔性金属气体电池所面临的主要难题，突出了具有不同结构和成分的柔性阴极和凝胶聚合物电解质如何影响柔性金属气体电池的电化学性能和功能。灵活的Zn-空气，Li-O₂ /空气和Li–CO₂电池主要是为了阐明其潜力。最后，基于我们的考虑，提出了涉及可穿戴电子设备的柔性金属-气体电池的未解决的技术障碍和未来的研究前景。

更新日期：2020-03-11

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