The synthesis of a novel first stage GIC containing simultaneously lithium, potassium and barium through solid–liquid reaction by molten salts method is described. Such route has been largely developed in our laboratory for intercalation metals into graphite. interplanar distance this quaternary compound reaches 950 pm exhibits poly-layered intercalated sheets defined X-ray measurements. Li0.2K...

The intercalation of lithium into graphite was discovered in the 1950's.' After that, many studies focused on the staged phases ' that are formed during lithium intercalation in graphite and in graphitic carbon types. Safran concluded that the staging phenomenon is the result of the competition between interlayer repulsive and in-plane attractive interactions between the intercalated lithium. S...

Graphite has long been the most used commercial anode material in Li-ion batteries. However, it has a limited Li intercalation capacity of 372 mAh g , which cannot meet the increasing energy demand for Li-ion batteries. Here, we propose massive artificial graphite as a host material for the controlled deposition and stripping of Li metal within the internal space of the particles and demonstrat...

Electrochemical impedance spectroscopy (EIS) and in-situ intrinsic resistance measurements were applied to sandwiched disk graphite electrodes to investigate the mechanism of formation of irreversible capacity during initial galvanostatic or potentiostatic lithium intercalation into graphite in four different electrolyte formulations. The stability of the solid electrolyte interphase (SEI) film...

This study reports the first attempt to employ a potassium–graphite intercalation compound (KC24) as an initiator for one-pot synthesis of multi-block copolymer. The results obtained show that KC24 successfully initiated copolymerization, leading copolymer consisting poly(styrene), poly(methyl methacrylate) and poly(ethylene oxide) blocks. When all three comonomers were introduced simultaneousl...

We present an exhaustive first-principles investigation of Li absorption and intercalation in single layer graphene and few layer graphene, as compared to bulk graphite. For single layer graphene, the cluster expansion method is used to systemically search for the lowest energy ionic configuration as a function of absorbed Li content. It is predicted that there exists no Li arrangement that sta...

Herein, we report on a significant discovery, namely, the quantitative discharging of reduced graphite forms, such as graphite intercalation compounds, graphenide dispersions and graphenides deposited on surfaces with the simple solvent benzonitrile. Because of its comparatively low reduction potential, benzonitrile is reduced during this process to the radical anion, which exhibits a red colou...