Dual-carbon based rechargeable batteries and supercapacitors are promising electrochemical energy storage devices because their characteristics of good safety, low cost and environmental friendliness. Herein, we extend the concept of dual-carbon devices to the energy storage devices using carbon materials as active materials in both anode and cathode, and offer a real-time and overall review of the representative research progress concerning such generalized dual-carbon devices. In this review, the charge storage mechanisms of various ions on different carbonaceous electrodes are introduced at first. Then, the research progress and problems of dual-carbon devices based on four types of charge-storage mechanisms including “adsorption-adsorption”, “adsorption-intercalation”, “intercalation-adsorption” and “intercalation-intercalation” are systematically discussed. Finally, prospects for future research directions and challenges of the dual-carbon devices are presented, and some new insights are proposed as well.

基于双碳的可充电电池和超级电容器具有良好的安全性，低成本和环境友好性，是有前途的电化学储能设备。在此，我们将双碳器件的概念扩展到在阳极和阴极中都使用碳材料作为活性材料的储能器件，并对涉及此类通用双碳器件的代表性研究进展进行了实时和全面的回顾。在这篇综述中，首先介绍了不同离子在不同碳质电极上的电荷存储机理。然后，基于“吸附-吸附”，“吸附-嵌入”四种电荷存储机理的双碳器件的研究进展和存在的问题。系统地讨论了“嵌入-吸附”和“嵌入-嵌入”。最后，提出了双碳装置未来研究方向和挑战的前景，并提出了一些新的见解。