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Cs 1.6 Gl-loader 168 EXCLUSIVE

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Silicon has a number of beneficial properties, for example, it is light weight, ductile, tough, wear resistant, and its strength is over 200 GPa. However, silicon cannot be used in Li-ion batteries because its large volume expansion is not compatible with the nanostructure of the active material electrode, as well as the polymeric electrolyte. In this study, we propose a new approach to combine graphite and Si, such that graphite is impregnated in Si powder by strong interaction between Si and graphite. Si dispersed with carbon is used in the fabrication of the anode. The fabricated anode material shows a slight volume increase, as well as a large capacity (1290 mAh g1), and good rate capacity (910 mAh g1 at 1400 mA g1). The improved anode material exhibits a significantly large capacity increase of Cs 1.6 Gl-loader 168 at a current density of 560 mA g1, which is the highest reported value in the literature so far.

Due to the unique structure and functionality, graphene is an excellent anode material for lithium storage. In this work, we prepared a type of graphene/poly(acrylonitrile-co-butadiene-co-styrene) (PAN/PBS) composite by a simple physical blending method and found that this novel material exhibits excellent electrochemical properties when used as anode in lithium batteries. The stable capacity was maintained over 700 mAh g−1 for up to 300 cycles at a current of 500 mA g−1. The capability to incorporate solvent and polymer molecules into the pristine graphene microstructure resulted in a remarkable improvement of the lithium ion intercalation process, which was attributed to the high reactivity of solvent/polymer molecules in the cell. The attractive results presented in this work may be extended to other graphene-based composites and open the way for the use of these materials as high-performance anode materials for lithium-ion batteries. 84d34552a1