Cover Image, Volume 5, Number 5, May 2023

Front cover image: Given a rise in the popularity of wearable electronics that are able to deform into desirable configurations while preserving electrochemical functionality, stretchable and flexible supercapacitors (SCs) have become increasingly of interest as innovative energy storage devices. In article number: 10.1002/cey2.320, Amiri et al. investigated various advancements and upcoming prospects of flexible and stretchable SCs including 1D fiber-like SCs, 2D planar SCs, and 3D SCs. The fundamentals of stretchable SCs such as mechanisms, layouts, materials, and configuration designs associated with each configuration and their effects on mechanical and electrochemical properties are studied in details.