Unlocking high-capacity and ultra-stable aqueous Cu-Se batteries via three-dimensional honeycomb-like nanoporous carbon confinement

Key Points

• High-capacity and ultra-stable performance were observed in aqueous Cu-Se batteries confined by nanoporous carbon.
• The enhanced electrode stability of the batteries led to increased energy density and improved cycling life.
• Assessment using three-dimensional honeycomb-like structures demonstrated superior electrochemical performance and longevity.
• These findings suggest that nanoporous carbon confinement may enable advancements in energy storage technologies for various applications.