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Abstract Poly(N-vinylcarbazole) (PVK) containing the electron-rich carbazole moiety is exploited as a high-potential and high-capacity organic polymer cathode for dual-intercalation Na-ion batteries, which exhibits redox potential in the range of… Click to show full abstract
Abstract Poly(N-vinylcarbazole) (PVK) containing the electron-rich carbazole moiety is exploited as a high-potential and high-capacity organic polymer cathode for dual-intercalation Na-ion batteries, which exhibits redox potential in the range of 2.5–4.6 V (vs. Na+/Na) and theoretical specific capacity of ~138 mAh g−1. After proper optimizations, PVK can deliver average discharge capacities of ~110 mAh g−1 for 100 cycles under a low current density (50 mA g−1) and ~62 mAh g−1 for 900 cycles under a high current density (0.5 A g−1) using 1 M NaPF6 in ethylene carbonate (EC) and diethyl carbonate (DEC).
Journal Title: Organic Electronics
Year Published: 2019
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