Synthesis of Arylene Ether-Type Hyperbranched Poly (Triphenylamine) for Lithium Battery Cathodes

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We synthesized a new poly(triphenylamine), having a hyperbranched structure, and employed it in lithium-ion batteries as an organic cathode material. Two types of monomers were prepared with hydroxyl groups and nitro leaving groups, activated by a trifluoromethyl substituent, and then polymerized via the nucleophilic aromatic substitution reaction. The reactivity of the monomers differed depending on the number of hydroxyl groups and the A(2)B type monomer with one hydroxyl group successfully produced poly(triphenylamine). Based on thermal, optical, and electrochemical analyses, a composite poly(triphenylamine) electrode was made. The electrochemical performance investigations confirmed that the lithium-ion batteries, fabricated with the poly(triphenylamine)-based cathodes, had reasonable specific capacity values and stable cycling performance, suggesting the potential of this hyperbranched polymer in cathode materials for lithium-ion batteries.
Publisher
MDPI
Issue Date
2021-12
Language
English
Article Type
Article
Citation

MATERIALS, v.14, no.24, pp.7885 - 7897

DOI
10.3390/ma14247885
URI
http://hdl.handle.net/10203/291865
Appears in Collection
CH-Journal Papers(저널논문)
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