Boron′s electron deficiency results in diverse structural variations and complex electron behavior in its nanostructures.Since graphene′s discovery, interest in boron-based nanoengineering has grown, with studies exploring its unique structural, elec., and electrochem. properties, especially for batteries.However, boron nanostructures face significant challenges, particularly poor stability, which limits their application in energy storage.To overcome this, research focuses on improving boron′s redox reaction kinetics, alk. cation adsorption, and overall stability as an electrode material.Despite progress, major knowledge gaps remain, highlighting the need for further theor. and exptl. studies.Boron-based batteries offer both opportunities and challenges, requiring systematic investigation into the fabrication, properties, and applications of boron materials.This review covers the main aspects of B within the field of energy storage applications since the synthesis of B-based nanomaterials and its uses as electroactive materials in batteries such as Li-ion, Li-S as well as electrolytes.In addition, some of the latest studies are discussed as a means to elucidate the intricacies of B nanoengineering and the ways that it can benchmark the performance of different types of batteries.In this sense, some of the key strategies include B-doping in nanocarbons, surface functionalization, heterostructure interface engineering with borophene, and the development of 3D porous borophene architectures to enhance stability and electrochem. performance in Li-ion and Li-S batteries.Addnl., the review discusses challenges related to manufacturing, scalability, stability, characterization, and safety.Lastly, the authors emphasize borophene′s potential to drive advancements in 2D materials and battery research, aiming to inspire innovative approaches for future development.