Conductor mixed frameworks

Consequently, most of the intercalation compounds are mixed-conductors, i.e., electronic and ionic to some extent, in which the charge transfer occurs between the intercalant species and the host structure. The tendency for this charge transfer process is the main driving force for the intercalation reaction and it is one of the basic properties that make the host framework a suitable cathode material. Intercalation is crucial in the working cycle of modem batteries and supercapacitors it involves complex diffusion processes along and across the layers. 

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