In a breakthrough published in Advanced Materials, researchers from the Institute of Metal Research under the Chinese Academy of Sciences in the Chinese mainland have engineered a flexible solid-state lithium battery that endures up to 20,000 bends. This innovation tackles long-standing challenges in solid-state energy storage, offering a safer, higher-density alternative for next-generation electronics.
The heart of the innovation lies in a polymer-based electrolyte featuring ion-conducting ethoxy groups and electrochemically active short sulfur chains embedded directly into the polymer backbone. By integrating electrode–electrolyte interfaces at a molecular level, the team unlocked faster ion transport and reliable switchable performance.
In tests, prototypes with this material showed an impressive 86% jump in energy density when used in composite cathodes, while enduring 20,000 bending cycles without performance loss. This combination of flexibility, safety, and power density could pave the way for bendable smartphones, wearable gadgets, and more durable modules for electric vehicles.
As global demand for high-performance, sustainable energy storage surges, this design strategy opens fresh pathways for solid-state battery research. For digital nomads carrying slim foldable devices or entrepreneurs developing portable power solutions, a flexible, long-lasting battery could transform the way we stay connected on the move.
Reference(s):
cgtn.com
