{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Jin Z"],"funding":["National Science Foundation"],"pagination":["3533-3538"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8943886"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(12)"],"pubmed_abstract":["Redox-active two-dimensional polymers (RA-2DPs) are promising lithium battery organic cathode materials due to their regular porosities and high chemical stabilities. However, weak electrical conductivities inherent to the non-conjugated molecular motifs used thus far limit device performance and the practical relevance of these materials. We herein address this problem by developing a modular approach to construct π-conjugated RA-2DPs with a new polycyclic aromatic redox-active building block PDI-DA. Efficient imine-condensation between PDI-DA and two polyfunctional amine nodes followed by quantitative alkyl chain removal produced RA-2DPs TAPPy-PDI and TAPB-PDI as conjugated, porous, polycrystalline networks. In-plane conjugation and permanent porosity endow these materials with high electrical conductivity and high ion diffusion rates. As such, both RA-2DPs function as organic cathode materials with good rate performance and excellent cycling stability. Importantly, the improved design enables higher areal mass-loadings than were previously available, which drives a practical demonstration of TAPPy-PDI as the power source for a series of LED lights. Collectively, this investigation discloses viable synthetic methodologies and design principles for the realization of high-performance organic cathode materials."],"journal":["Chemical science"],"pubmed_title":["π-Conjugated redox-active two-dimensional polymers as organic cathode materials."],"pmcid":["PMC8943886"],"funding_grant_id":["DMR-2002634"],"pubmed_authors":["Gray J","Nuckolls C","Yang Y","Venkataraman L","Cheng Q","Bao ST","Wei F","Jin Z","Zhang R","Evans AM"],"additional_accession":[]},"is_claimable":false,"name":"π-Conjugated redox-active two-dimensional polymers as organic cathode materials.","description":"Redox-active two-dimensional polymers (RA-2DPs) are promising lithium battery organic cathode materials due to their regular porosities and high chemical stabilities. However, weak electrical conductivities inherent to the non-conjugated molecular motifs used thus far limit device performance and the practical relevance of these materials. We herein address this problem by developing a modular approach to construct π-conjugated RA-2DPs with a new polycyclic aromatic redox-active building block PDI-DA. Efficient imine-condensation between PDI-DA and two polyfunctional amine nodes followed by quantitative alkyl chain removal produced RA-2DPs TAPPy-PDI and TAPB-PDI as conjugated, porous, polycrystalline networks. In-plane conjugation and permanent porosity endow these materials with high electrical conductivity and high ion diffusion rates. As such, both RA-2DPs function as organic cathode materials with good rate performance and excellent cycling stability. Importantly, the improved design enables higher areal mass-loadings than were previously available, which drives a practical demonstration of TAPPy-PDI as the power source for a series of LED lights. Collectively, this investigation discloses viable synthetic methodologies and design principles for the realization of high-performance organic cathode materials.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Mar","modification":"2026-05-09T21:56:48.617Z","creation":"2025-04-04T13:30:54.355Z"},"accession":"S-EPMC8943886","cross_references":{"pubmed":["35432867"],"doi":["10.1039/d1sc07157b"]}}