Energy Z is an interdisciplinary journal at the forefront of research in energy storage and conversion, dedicated to advancing innovative science and technologies toward a sustainable energy future. The journal brings together fundamental discoveries, emerging materials and technologies, advanced characterization and theoretical insights, and transformative applications across the energy field. It particularly welcomes pioneering research that addresses critical challenges in energy storage and conversion, establishes new scientific principles and technological strategies, and explores the integration of energy storage and conversion toward more efficient, sustainable, and intelligent energy systems.