Cationic Polymerization of Poly(vinyl ether) Bearing a TEMPO Radical: A New Cathode-Active Material for Organic Radical Batteries
✍ Scribed by Masahiro Suguro; Shigeyuki Iwasa; Yuki Kusachi; Yukiko Morioka; Kentaro Nakahara
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 147 KB
- Volume
- 28
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
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 × 10^21^ 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).
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