Paving the Way for Next-Generation All-Solid-State Batteries: Dry Electrode Technology

Abstract

For the effective implementation of all-solid-state batteries (ASSBs), the progress of dry electrode technology is essential. Considering the urgent challenges posed by global warming, advancing affordable ASSBs is crucial for reliable and sustainable electrochemical energy conversion and storage systems. Despite the substantial progress in research on solid electrolytes, ASSBs continue to face fundamental challenges, including high manufacturing costs, considerable environmental impact, and insufficient interfacial stability. The dry electrode processing methodology presents a highly promising alternative to conventional wet electrode fabrication techniques, effectively addressing these limitations while facilitating scalable production capabilities. Although research on dry-electrode-based ASSBs has gained significant traction in recent years, the overall challenges are recognized as intricate due to the presence of multiple electrode components with diverse requirements and limitations. For the comprehensive review, the dry processing approach is systematically examined from the perspective of materials science and electrode processing. An electrode-component-level framework is adopted as well. Furthermore, crucial technical barriers are identified, and prospective research directions for the advancement of solid-state battery technology are delineated.