From Lab to Life: Progress in Supercapacitor Electrode Materials for Real-Life Electrochemical Energy Storage Applications

The growing demand for sustainable, high-performance energy solutions has intensified the need for advanced electrochemical electrode materials, particularly for real-life applications, notably electric vehicles, grid stabilization, and portable electronics. Supercapacitors have become essential in this real-world energy storage landscape due to their exceptional power density, rapid charge–discharge capability, and long operational lifetime. While various electrode materials and their electrochemical performances have been extensively studied, limited attention has been paid to the transition from laboratory-scale development to real-world application. This article fills this gap by exploring the latest advancements in supercapacitor electrode materials with a particular focus on their progression from laboratory innovation to practical real-time energy storage and supply. Emphasizing the crucial role of electrode materials in optimizing electrochemical performance, we provide a thorough analysis of the state-of-the-art supercapacitor technologies in terms of the electrode materials and their advanced processing methods. We further highlight the emerging integrations of machine learning techniques for predictive material discovery and synthesis optimization, and of the environmentally sustainable materials for dissemination of the high-performance supercapacitors to our society. This article provides a clear roadmap for translating lab-scale innovations into sustainable, market-ready supercapacitor technologies, emphasizing the crucial role of advanced electrode materials.