Rational Molecular Engineering of Amidonaphthoquinone Cathodes: Precise Hydrogen Bond and Size Control for High-Performance Lithium Organic Batteries.

ABSTRACT: Rational design of organic cathode materials with suppressed solubility is crucial yet challenging for achieving high-capacity and long-cycling rechargeable batteries. This study presents a facile synthesis strategy for three naphthoquinone derivatives (NQ1-NQ3) featuring tunable amide functionalities and molecular dimensions, followed by a systematic evaluation of their electrochemical performance in lithium-organic batteries (LOBs). The strategic incorporation of multiple amide motifs and molecular size expansion in NQ2 and NQ3 effectively enhances intermolecular interactions through hydrogen-bonding networks and π-π stacking, resulting in remarkable solubility suppression and superior cycling stability. Notably, the NQ3-based cathode demonstrates an intriguing structural evolution invol

SUBMITTER: Chen Q 

PROVIDER: S-EPMC12376649 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature