VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Electrochemically stabilised quinone based electrode composites for Li-ion batteries
    Pirnat, Klemen ...
    In order to improve the stability and kinetics of organic materials for lithium batteries, composites between a quinone derivative of calyx[4]arene and carbon black were prepared. Two different ... approaches were used, the first relying on covalent grafting and the second on electrochemical grafting of the quinone derivatives on the carbon black support. The properties of prepared composites were investigated using XRD, FTIR, TGA and NMR, while their electrochemical stability was studied using classical galvanostatical cycling. It was found that the efficiency of the electrochemical stabilisation of organic molecules depends on the surface properties of the substrate. Interestingly, within the same compositional range, the covalently and electrochemically grafted quinone derivatives of calyx[4]arene showed similar cycling stability. Composites with approximately 20 wt.% of active organic material showed excellent cycling stability within 100 cycles with a delivered capacity of about 60 mAh g-1 of composite (more than 300 mAh g-1 per quinone).
    Vir: Journal of power sources. - ISSN 0378-7753 (Vol. 199, 2012, str. 308-314)
    Vrsta gradiva - članek, sestavni del
    Leto - 2012
    Jezik - angleški
    COBISS.SI-ID - 4847898