Electrochemical properties of various carbon nanofilaments for use as Li-ion battery anodes

Abstract

Carbon nanotubes (CNTs) and carbon nanofilaments (CNFs) have attracted considerable interest in industry and many other fields such as for their use in electronic devices. In this study, CNFs were synthesized by decomposition of ethylene over Pd-and Ni-loaded oxidized diamond catalysts using a fluidized-bed reactor. We examined the effects of various internal structures on Li-ion battery anode properties. Electrochemical measurements indicated that CNF anodes displayed near the theoretical discharge capacity of graphite intercalation compounds (372 mAh/g) as well as high cycle retention. CNF anodes were thus found to be appropriate materials for the use in Li-ion batteries.

Investigation of the electrochemical intercalation of Ca2+ into graphite layer carbon nano filaments as a novel electrode material for calcium-ion batteries

“…Thus, they might be applied in a wide range of fields. As reported previously the use of coin-stacked CNFs with a graphite structure as an anode material for LIBs yielded higher capacity than that of a graphite anode [28]. Thus, the MNC anode may intercalate more Ca 2+ between the graphene layers of CNF than the graphite anode.…”