Copper nanowire (Cu NW)-based functional electrodes are one of the most important components in next-generation flexible and wearable electronics due to their superior electrical conductivity and remarkable mechanical flexibility. In the past decades, researchers have focused on the study of Cu NWs and have achieved many innovative results from synthesis to applications. Importantly, Cu NWs have immeasurable potential for extensive practical applications, especially in the field of electronic devices, due to their significantly lower price compared to other metal NWs. This review article emphasizes the recent progress of Cu NWs in electronic applications, including flexible transparent electrodes for optical devices, current collectors for lithium-ion batteries, and stretchable electrodes for wearable devices. Furthermore, various technical issues and personal perspectives are discussed that will help the researchers to solve some of the difficulties faced in the future. Finally, we put forward a brief outlook of Cu NWs in the above-mentioned electronics to promote better exploration and development of research for practical applications.

中文翻译：

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近期电子应用中的铜纳米线：进展和展望

基于铜纳米线（Cu NW）的功能电极由于其优越的导电性和出色的机械柔韧性，是下一代柔性和可穿戴电子产品中最重要的组件之一。在过去的几十年中，研究人员一直致力于铜纳米线的研究，并从合成到应用取得了许多创新成果。重要的是，由于与其他金属纳米线相比价格低廉，铜纳米线在广泛的实际应用中具有不可估量的潜力，尤其是在电子设备领域。这篇评论文章强调了铜纳米线在电子应用中的最新进展，包括用于光学设备的柔性透明电极，用于锂离子电池的集电器和用于可穿戴设备的可拉伸电极。此外，讨论了各种技术问题和个人观点，这将有助于研究人员解决将来面临的一些困难。最后，我们对上述电子器件中的铜纳米线进行了简要介绍，以促进更好的探索和开发实际应用的研究。