Nitroxide polymer brushes grafted onto silica nanoparticles as cathodes for organic radical batteries

摘要: Abstract Nitroxide polymer brushes grafted on silica nanoparticles as binder-free cathodes for organic radical batteries have been investigated. Scanning electron microscopy, transmission infrared spectroscopy and spin resonance confirm that the nitroxide are successfully onto via surface-initiated atom transfer polymerization. The thermogravimetric analysis results indicate onset decomposition temperature of these is found to be ca. 201 °C. grafting density 0.74–1.01 chains nm −2 . electrochemical quartz crystal microbalance non-crosslinking prevent from dissolving into electrolytes. Furthermore, show discharge capacity 84.9–111.1 mAh g −1 at 10 C cells with brush electrodes a very good cycle-life performance 96.3% retention after 300 cycles.