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3D Periodic Polyimide Nano-Networks for Ultrahigh-Rate and Sustainable Energy Storage

An important aspect of the future for rechargeable batteries lies in the development of advanced electrode materials that not only possess reliable electrochemical performances capabilities but also safe, sustainable, and cost-effective. In this respect, organic molecules with redox-active motifs are witnessing a surge in popularity as attractive candidates for next-generation electrodes. The research groups of Prof. Seokwoo Jeon, Prof. Paul V. Braun, and Prof. Il-Doo Kim have focused on revolutionizing rechargeable organic batteries through the structural engineering of organic-based electrodes. They succeeded in developing a new 3D periodic nano-network of multi-redox active polyimide with incomparably high-rate cycling stability. The study was published on August 6, 2021, in Energy & Environmental Science (Impact Factor: 38.5).
Redox-active organic materials offer the inherent advantages of lightness, a high theoretical capacity, a small environmental footprint, and molecular tunability. While there has been significant progress in the exploration of a new class of redox centers and molecular structures, the practical requirements of high electrochemical activity and stability alond with rapid kinetics for fast charging, are motivating the search for rational design principles applicable to electrode architectures.
The researchers conceived a lithographic fabrication strategy to realize a 3D bicontinuous nano-network consisting of a periodically porous nickel-supported redox-active organic layer (pore radius
2021 KI Newsletter

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