Crosslinked Polyimide and Reduced Graphene Oxide Composites as Long Cycle Life Positive Electrode for Lithium-Ion Cells.
Cathode
composites
crosslinked polyimides
lithium-ion batteries
long cycle life
Journal
ChemSusChem
ISSN: 1864-564X
Titre abrégé: ChemSusChem
Pays: Germany
ID NLM: 101319536
Informations de publication
Date de publication:
21 Oct 2020
21 Oct 2020
Historique:
received:
04
06
2020
revised:
24
07
2020
pubmed:
30
7
2020
medline:
30
7
2020
entrez:
30
7
2020
Statut:
ppublish
Résumé
Conjugated polymers with electrochemically active redox groups are a promising class of positive electrode material for lithium-ion batteries. However, most polymers, such as polyimides, possess low intrinsic conductivity, which results in low utilization of redox-active sites during charge cycling and, consequently, poor electrochemical performance. Here, it was shown that this limitation can be overcome by synthesizing polyimide composites (PIX) with reduced graphene oxide (rGO) using an in situ polycondensation reaction. The polyimide composites showed increased charge-transfer performance and much larger specific capacities, with PI50, which contains 50 wt % of rGO, showing the largest specific capacity of 172 mAh g
Identifiants
pubmed: 32725860
doi: 10.1002/cssc.202001389
pmc: PMC7693101
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
5571-5579Subventions
Organisme : Engineering and Physical Sciences Research Council (EPSRC)
ID : EP/N004884/1
Organisme : EPSRC funding
ID : EP/R020744/1
Informations de copyright
© 2020 The Authors. Published by Wiley-VCH GmbH.
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