A research team has achieved remarkable breakthroughs in the realm of solid-state lithium batteries, with their pertinent research findings published in the esteemed journal Advanced Materials. Solid-state lithium batteries are widely recognized as a pivotal direction for next-generation energy storage technologies. Nevertheless, the subpar solid-solid interface contact in conventional solid-state batteries has posed a significant obstacle, constraining their practical applications.
The research team leveraged the design versatility of polymer molecules to create a novel material, thereby attaining molecular-scale interface integration. This innovative material not only boasts high ion transport capabilities but also has the ability to controllably switch between ion transport and storage behaviors. The integrated flexible battery based on this material demonstrates outstanding resistance to bending. When employed as a polymer electrolyte in composite cathodes, it leads to an 86% increase in energy density, thus offering a fresh approach for the development of high-performance, high-safety solid-state batteries.