Phenothiazine-based polymer cathode materials with ultrahigh power densities for lithium ion batteries

Simple item page
buir.contributor.authorÜlgüt, Burak
dc.citation.epage3564en_US
dc.citation.issueNumber8en_US
dc.citation.spage3560en_US
dc.citation.volumeNumber1en_US
dc.contributor.authorPeterson, B. M.en_US
dc.contributor.authorRen, D.en_US
dc.contributor.authorShen, L.en_US
dc.contributor.authorWu, Y. -C. M.en_US
dc.contributor.authorÜlgüt, Buraken_US
dc.contributor.authorCoates, G. W.en_US
dc.contributor.authorAbruna, H. D.en_US
dc.contributor.authorFors, B. P.en_US
dc.date.accessioned2019-02-22T19:17:40Z
dc.date.available2019-02-22T19:17:40Z
dc.date.issued2018en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractLithium ion batteries (LIBs) currently deliver the highest energy density of any known secondary electrochemical energy storage system. However, new cathode materials, which can deliver both high energy and power densities, are needed to improve LIBs. Herein, we report on the synthesis of a new organic-based redox-active material centered about phenothiazine and phenylenediamine units. Improved Coulombic efficiencies and greater capacity retention during cycling are observed through the copolymerization of a phenothiazine-based monomer that yields cross-linked materials. With this as the positive electrode in Li-coin cells, high specific capacities (150 mAh/g) are delivered at very positive operating voltages (2.8−4.3 V vs Li+ /Li), yielding high energy densities. The material has low charge transfer resistance as verified by electrochemical impedance spectroscopy, which contributes in delivering previously unseen power densities in coin cells for organic-based cathodes. Excellent retention of capacity (82%) is observed at ultrafast discharge rates (120 C).en_US
dc.description.provenanceSubmitted by Onur Emek (onur.emek@bilkent.edu.tr) on 2019-02-22T19:17:40Z No. of bitstreams: 1 Phenothiazine-based_polymer_cathode_materials_with_ultrahigh_power_densities_for_lithium_ıon_batteries.pdf: 1905766 bytes, checksum: e9032baade4dc43028668012ca07dcab (MD5)en
dc.description.provenanceMade available in DSpace on 2019-02-22T19:17:40Z (GMT). No. of bitstreams: 1 Phenothiazine-based_polymer_cathode_materials_with_ultrahigh_power_densities_for_lithium_ıon_batteries.pdf: 1905766 bytes, checksum: e9032baade4dc43028668012ca07dcab (MD5) Previous issue date: 2018en
dc.identifier.doi10.1021/acsaem.8b00778en_US
dc.identifier.eissn2574-0962
dc.identifier.urihttp://hdl.handle.net/11693/50554
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttps://doi.org/10.1021/acsaem.8b00778en_US
dc.source.titleACS Applied Energy Materialsen_US
dc.subjectLithium ion batteriesen_US
dc.subjectOrganic cathode materialsen_US
dc.subjectPolymer cathode materialsen_US
dc.subjectSecondary batteriesen_US
dc.subjectPhenothiazineen_US
dc.titlePhenothiazine-based polymer cathode materials with ultrahigh power densities for lithium ion batteriesen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Phenothiazine_based_polymer_cathode_materials_with_ultrahigh_power_densities_for_lithium_ıon_batteries.pdf
Size:
1.8 MB
Format:
Adobe Portable Document Format
Description:
View / Download
Download

Collections

Scholarly Publications - Chemistry