Li-batteries: electrochemical intercalation of fluorocomplex anions into carbon nanotubes
Keywords:
ithium batteries, complex fluorides, carbon nanotubes, electrochemical cells, electrolytes solutions, cyclic voltammetry, anion intercalationAbstract
Presented new trends of electrochemical intercalation of fluorocomplex anions into carbon nanotubes, which are used in lithium batteries. Methods of Transmission Electron Microscopy and X-ray Diffractometry were used to characterize the microstructure of the carbon nanotubes. Electrochemical cells with metallic lithium were as the negative pole and a polypropylene microporous separator in the complex fluorides with organic solvents used as the electrolytes solutions. The cells were cycled between 4.5 V and 2 V by cyclic voltammetry technique under 70 mV/s voltage sweeping rate. It was shown that PF6- and BF4- intercalate into carbon nanotubes in a similar way than in graphite and fullerenes.
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