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Issue 26, 2018, Issue in Progress
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Ferrocene-functionalized polyheteroacenes for the use as cathode active material in rechargeable batteries

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Abstract

Herein we report the synthesis and characterization of new conjugated polymers bearing redox-active pendant groups for applications as cathode active materials in secondary batteries. The polymers comprise a ferrocene moiety immobilized at a poly(cyclopenta[2,1-b:3,4-b′]dithiophene) (pCPDT, P1) or a poly(dithieno[3,2-b:2′,3′-d]pyrrole) (pDTP, P2) backbone via an ester or an amide linker. Electrochemical and oxidative chemical polymerizations were performed in order to investigate the redox behaviour of the obtained polymers P1 and P2 and to synthesize materials on gram-scale for battery tests, respectively. During galvanostatic cycling in a typical battery environment, both polymers showed high reversible capacities of 90% and 87% of their theoretical capacity and excellent capacity retentions of 84% and 97% over 50 cycles.

Graphical abstract: Ferrocene-functionalized polyheteroacenes for the use as cathode active material in rechargeable batteries

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Supplementary files

Article information


Submitted
05 Jan 2018
Accepted
02 Apr 2018
First published
17 Apr 2018

This article is Open Access

RSC Adv., 2018,8, 14193-14200
Article type
Paper

Ferrocene-functionalized polyheteroacenes for the use as cathode active material in rechargeable batteries

P. Schwartz, S. Förtsch, E. Mena-Osteritz, D. Weirather-Köstner, M. Wachtler and P. Bäuerle, RSC Adv., 2018, 8, 14193
DOI: 10.1039/C8RA00129D

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