Flexible, Self-Supported Anode for Organic Batteries with a Matched Hierarchical Current Collector System for Boosted Current Density
DC Element | Wert | Sprache |
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dc.contributor.author | Beladi-Mousavi, Seyyed Mohsen | |
dc.contributor.author | Klein, Jonas | |
dc.contributor.author | Ciobanu, Marius | |
dc.contributor.author | Sadaf, Shamaila | |
dc.contributor.author | Mahmood, Arsalan Mado | |
dc.contributor.author | Walder, Lorenz | |
dc.date.accessioned | 2021-12-23T16:00:26Z | - |
dc.date.available | 2021-12-23T16:00:26Z | - |
dc.date.issued | 2021 | |
dc.identifier.issn | 16136810 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/4397 | - |
dc.description.abstract | The inherent flexibility of redox-active organic polymers and carbon-based fillers, combined with flexible current collectors (CCs) is ideal for the fabrication of flexible batteries. Herein, a one-step electrophoretic deposition of polyviologen (PV)/graphene-oxide (GO) aqueous composites onto a flexible mesh of 60 mu m thick wires, 100 mu m apart, is described. Notably, during electrodeposition, GO is transformed into conductive reduced GO (rGO), and nanoscopic pores are formed by self-assembly allowing charge/discharge of the redox sites over dozens of micrometers. Typically, electrodeposition of PV alone on a flat CC (FCC) is limited by its electrically insulating structure to approximate to 0.15 mAh cm(-2), but the presence of rGO allows thicker active layers without loss in (dis-)charging kinetics and reaching areal capacities of approximate to 2 mAh cm(-2). Remarkably, when the FCC is replaced by a mesh, the deposition of significantly more anode materials (approximate to 5 mAh cm(-2)) is possible, while the (dis-)charging kinetics is considerably improved. It exhibits high capacity retention at an ultrafast rate of 100 C (<3%) and excellent bending stabilities. This represents the first combination of a microscopic-CC (mesh wires) with a molecular-electronic and -ionic conductor (rGO with its pores), i.e., a hierarchical-CC system with maximized polymer thickness and minimized wire thickness. The stacking of such modified grids paves the road to further increase the areal capacity. | |
dc.description.sponsorship | Projekt DEAL; S.M.B.-M. and J.K. contributed equally to this work. Open access funding enabled and organized by Projekt DEAL. | |
dc.language.iso | en | |
dc.publisher | WILEY-V C H VERLAG GMBH | |
dc.relation.ispartof | SMALL | |
dc.subject | CATHODE | |
dc.subject | Chemistry | |
dc.subject | Chemistry, Multidisciplinary | |
dc.subject | Chemistry, Physical | |
dc.subject | electrodeposition | |
dc.subject | flexible batteries | |
dc.subject | hierarchical current collector | |
dc.subject | Materials Science | |
dc.subject | Materials Science, Multidisciplinary | |
dc.subject | Nanoscience & Nanotechnology | |
dc.subject | organic anodes | |
dc.subject | organic batteries | |
dc.subject | PERFORMANCE | |
dc.subject | Physics | |
dc.subject | Physics, Applied | |
dc.subject | Physics, Condensed Matter | |
dc.subject | reduced graphene oxide | |
dc.subject | Science & Technology - Other Topics | |
dc.subject | viologens | |
dc.title | Flexible, Self-Supported Anode for Organic Batteries with a Matched Hierarchical Current Collector System for Boosted Current Density | |
dc.type | journal article | |
dc.identifier.doi | 10.1002/smll.202103885 | |
dc.identifier.isi | ISI:000706983800001 | |
dc.description.volume | 17 | |
dc.description.issue | 50 | |
dc.identifier.eissn | 16136829 | |
dc.publisher.place | POSTFACH 101161, 69451 WEINHEIM, GERMANY | |
dcterms.isPartOf.abbreviation | Small | |
dcterms.oaStatus | hybrid | |
crisitem.author.dept | Institut für Chemie neuer Materialien | - |
crisitem.author.deptid | institute11 | - |
crisitem.author.orcid | 0000-0002-5497-034X | - |
crisitem.author.parentorg | FB 05 - Biologie/Chemie | - |
crisitem.author.grandparentorg | Universität Osnabrück | - |
crisitem.author.netid | WaLo966 | - |
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geprüft am 07.06.2024