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To holistically address these multifaceted drawbacks, this work demonstrates a synergistic multi\u2010scale confinement engineering strategy through coordinated design at the molecule\u2010ion\u2010electron levels. Specifically, active molecules are physically confined within the ordered mesopores of conductive CMK3 carbon, ensuring structural stability and efficient electron transport. Concurrently, a high concentration electrolyte (3\u00a0\n                    <jats:sc>m<\/jats:sc>\n                    KFSI in EC\/DEC) is employed to tailor the solvation environment, regulating anion activity, and stabilize the interface. At the molecular scale, an electron\u2010withdrawing fluorine substituent is used to optimize electronic structure, enhancing potassium storage kinetics and capacity. The resulting 2FBA@CMK3 anode delivers an impressive reversible capacity of 152 mAh\/g after 400 cycles at 500\u00a0mA\/g, outperforming most reported organic PIB anodes. This work establishes a holistic and rational design paradigm for advancing organic electrode materials toward high\u2010performance PIBs.\n                  <\/jats:p>","DOI":"10.1002\/smtd.202502295","type":"journal-article","created":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T05:58:17Z","timestamp":1768543097000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Synergistic Multi\u2010Scale Confinement Engineering Stabilizes Organic Anode for High\u2010Performance Potassium\u2010Ion Batteries"],"prefix":"10.1002","volume":"10","author":[{"given":"Xiaokang","family":"Chu","sequence":"first","affiliation":[{"name":"Department of Chemistry and Materials Science College of Science Nanjing Forestry University  Nanjing P. R. 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