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Covalent organic frameworks (COFs) hold great promise for electrochemical energy storage because of their high surface area, readily accessible redox‐active sites, and environment‐friendly chemical composition. In this study, the synthesis of a redox‐active pyrene‐containing polyimide COF (PICOF‐1) by linker exchange using an imine‐linked COF as a template is reported and its performance in sodium‐ion...
Two large barriers are impeding the wide implementation of electric vehicles, namely driving‐range and cost, primarily due to the low specific energy and high cost of mono‐valence cathodes used in lithium‐ion batteries. Iron is the ideal element for cathode materials considering its abundance, low cost and toxicity. However, the poor reversibility of (de)lithiation and low electronic conductivity...
The ever‐growing annual electricity generated from sustainable and intermittent energy such as wind and solar power requires cost effective and reliable electrochemical energy storage. Rechargeable batteries based on multivalent metal anodes such as Zn, Al, and Fe, taking advantage of large‐scale production and affordable cost, have emerged as promising candidates. However, the uncontrollable dendrite‐like...
Sodium ion batteries (NIBs) based on earth‐abundant materials offer efficient, safe, and environmentally sustainable solutions for a decarbonized society. However, to compete with mature energy storage technologies such as lithium ion batteries, further progress is needed, particularly regarding the energy density and operational lifetime. Considering these aspects as well as a circular economy perspective,...
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