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The Metallocene Battery: Ultrafast Electron Transfer Self Exchange Rate Accompanied by a Harmonic Height Breathing

Beladi‐Mousavi, Seyyed Mohsen ; Sadaf, Shamaila ; Hennecke, Ann‐Kristin ; Klein, Jonas ; Mahmood, Arsalan Mado ; Rüttiger, Christian ; Gallei, Markus ; Fu, Fangyu ; Fouquet, Eric ; Ruiz, Jaime ; Astruc, Didier ; Walder, Lorenz (2024)
The Metallocene Battery: Ultrafast Electron Transfer Self Exchange Rate Accompanied by a Harmonic Height Breathing.
In: Angewandte Chemie International Edition, 2021, 60 (24)
doi: 10.26083/tuprints-00020133
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Item Type: Article
Type of entry: Secondary publication
Title: The Metallocene Battery: Ultrafast Electron Transfer Self Exchange Rate Accompanied by a Harmonic Height Breathing
Language: English
Date: 13 February 2024
Place of Publication: Darmstadt
Year of primary publication: 2021
Place of primary publication: Weinheim
Publisher: Wiley-VCH
Journal or Publication Title: Angewandte Chemie International Edition
Volume of the journal: 60
Issue Number: 24
DOI: 10.26083/tuprints-00020133
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

The first all‐metallocene rechargeable battery consisting of poly‐cobaltocenium/‐ and poly‐ferrocene/reduced graphene oxide composites as anode and cathode was prepared. The intrinsically fast ET self‐exchange rate of metallocenes was successfully combined with an efficient ion‐percolation achieved by molecular self‐assembly. The resulting battery materials show ideal Nernstian behavior, is thickness scalable up to >1.2 C cm⁻², and exhibit high coulombic efficiency at ultrafast rates (200 A g⁻¹). Using aqueous LiClO₄, the charge is carried exclusively by the anion. The ClO₄⁻ intercalation is accompanied by a reciprocal height change of the active layers. Principally, volume changes in organic battery materials during charging/discharging are not desirable and represent a major safety issue. However, here, the individual height changes — due to ion breathing — are reciprocal and thus prohibiting any internal pressure build‐up in the closed‐cell, leading to excellent cycling stability.

Alternative Abstract:
Alternative AbstractLanguage

An all-metallocene battery consisting of poly-ferrocene and poly-cobaltocene is shown. The extremely high power density is provided via molecular self-assembly between polymers and reduced graphene oxide. The precise construction of anode and cathode results in a reciprocal height change during charging–discharging, due to anion (de)intercalation in the soft structure

English
Uncontrolled Keywords: cobaltocene, ferrocene, organic batteries, organometallic electrodes, reduced graphene oxide
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-201334
Classification DDC: 500 Science and mathematics > 540 Chemistry
600 Technology, medicine, applied sciences > 660 Chemical engineering
Divisions: 07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Makromolekulare Chemie
Date Deposited: 13 Feb 2024 10:28
Last Modified: 21 Jun 2024 07:42
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20133
PPN: 51709391X
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