Results of computational study, using density functional theory, of few-layer graphene (FLG) nanostructures as storing cells for Li are presented. It is shown, that FLG nanostructures, modified by bridge-like defects, can contain very high concentration of Li atoms, with keeping the dimensional stability. Some peculiarities of lithium diffusion motion in structural defect zones of few-layer graphene sheets have been studied. Simulations and calculations performed allow of predicting that radiation functionalizing of the FLG nanostructures due to formation of bridge-like defects [1-3] can be used as a key technological tool in production of Li-based safe, high capacity and super-long- life batteries.
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