A novel polyphosphazene with nitroxide radical side groups as cathode-active material in Li-ion batteries
POLYMERS FOR ADVANCED TECHNOLOGIES, cilt.30, sa.12, ss.2977-2982, 2019 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 30 Sayı: 12
- Basım Tarihi: 2019
- Doi Numarası: 10.1002/pat.4728
- Dergi Adı: POLYMERS FOR ADVANCED TECHNOLOGIES
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.2977-2982
- Anahtar Kelimeler: cathode-active material, energy, Li-ion batteries, nitroxide radical, polyphosphazene, RECHARGEABLE BATTERIES, CONDUCTIVITY, POLYMERS
- Gazi Üniversitesi Adresli: Hayır
Özet
A novel polyphosphazene carrying stable nitroxide aromatic radical groups as a pendant with four electrons involvement per repeating unit is synthesized. To do so, series of macromolecular substitution reactions of poly (dichlorophosphazene) with 3,5-dibromophenol, 2-methyl-2-nitrosopropane, and lead oxide, respectively, are performed. After characterization of the newly synthesized polymers by standard spectroscopic techniques (such as Fourier transform infrared [FT-IR], nuclear magnetic resonance [NMR], or electron paramagnetic resonance [EPR]), the targeted polymer is further investigated as a cathode-active material for rechargeable lithium-ion batteries (LIBs). The cell delivered a good rate performance with a discharge capacity of 100 mAh/g at a C/2 current density over 500 cycles.