Graphite shortcomings

However, carbon materials have a serious shortcoming. They are easily oxidized above 530°C in air. It is possible to protect graphite plates or carbon fibers with SiC coating by CVD or pyrolysis of polymer containing Si and C.16-18 SiC is known as an effective material to prevent oxidation and corrosion due to the strong covalent bond and the passive oxidation by forming a protective Si02 layer on SiC.19-24... 

However, since SCC-DFTB is derived from DFT, it inherits the DFT failures and shortcomings. On the one hand, there is the deficiency of DFT for the description of van der Waals bonded complexes. Here, we extended SCC-DFTB by an explicit treatment of attractive dispersion forces [36], an extension called hereafter SCC-DFTB-D, which has been added to DFT methods in the same way later on as well [37,38], We have shown that this term is crucial not only for the interaction of DNA bases [36,39,40] or DNA intercalators [41,42], but also, for example, for the structure and stability of water on a graphite surface [43] and certain peptide configurations [21,23,44],... 

Graphene-polymer nanocomposites share with other nanocomposites the characteristic of remarkable improvements in properties and percolation thresholds at very low filler contents. Although the majority of research has focused on polymer nanocomposites based on layered materials of natural origin, such as an MMT type of layered silicate compounds or synthetic clay (layered double hydroxide), the electrical and thermal conductivity of clay minerals are quite poor [177]. To overcome these shortcomings, carbon-based nanofillers, such as CB, carbon nanotubes, carbon nanofibers, and graphite have been introduced to the preparation of polymer nanocomposites. Among these, carbon nanotubes have proven to be very effective as conductive fillers. An important drawback of them as nanofillers is their high production costs, which... 

Now, natural graphite is becoming one of the most promising candidates as Uthium-ion battery anode materials mainly because of its low cost, low and flat potential profile, high coulombic efficiency in proper electrolytes, and relatively high reversible capacity (330-350 mAh/g). On the other hand, it has two main shortcomings its low rate capacity and incompatibility with PC-based electrolytes. 

---