Cationic Polymerization of Poly(vinyl ether) Bearing a TEMPO Radical: A New Cathode-Active Material for Organic Radical Batteries

PTVE was synthesized as a new active material for organic radical batteries. Cationic polymerization of a monomer bearing a TEMPO radical moiety took place. The spin concentration of PTVE was estimated to be 2.75 × 1021 spins · g−1 (100% spin per repeating unit). The PTVE is extremely stable; there...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2007-09, Vol.28 (18-19), p.1929-1933
Main Authors: Suguro, Masahiro, Iwasa, Shigeyuki, Kusachi, Yuki, Morioka, Yukiko, Nakahara, Kentaro
Format: Article
Language:English
Subjects:
Applied sciences
cationic polymerization
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Organic polymers
organic radical
Physicochemistry of polymers
poly-(vinyl ether)
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
rechargeable battery
TEMPO
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Summary:PTVE was synthesized as a new active material for organic radical batteries. Cationic polymerization of a monomer bearing a TEMPO radical moiety took place. The spin concentration of PTVE was estimated to be 2.75 × 1021 spins · g−1 (100% spin per repeating unit). The PTVE is extremely stable; there is no decrease in spin concentration when storing PTVE samples for more than a year under aerobic conditions at room temperature. The redox potential of PTVE is 3.55 V (vs. Li/Li+). A coin‐type cell using a PTVE/VGCF composite electrode was also fabricated, and then performed charge/discharge measurements. The discharge capacity of PTVE is 114 mAh · g−1 (84% of the theoretical value).
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200700300