The improvement on capacity retention of silicon/graphite composites with TiN additive as anode materials for Li-ion battery

Synthesis and Characterization of Silicon Nanoparticles Inserted into Graphene Sheets as High Performance Anode Material for Lithium Ion Batteries

“…Mechanical stability is provided by a polymeric binder, usually PVDF [5]. Besides graphite, which possesses a theoretical specific capacity of 372 mAhg −1 , there are several other promising materials for application as anode material in Li-ion batteries, with theoretical specific capacities superior to graphite, like tin [6,7], SnO 2 [8], and Ge [9]. Unlike graphite, where lithium ions are stored in between the graphene layers in the graphite lattice during intercalation [10], silicon forms binary alloys with lithium [11][12][13][14][15].…”

“…Intense research activities are currently undertaken in the field of carbon-silicon composites [6,19,20]. This group of materials seems to be a promising solution to overcome the silicon related problems discussed above.…”

Si/C composites prepared by spray drying from cross-linked polyvinyl alcohol as Li-ion batteries anodes

“…In particular, we can find in the literature such technique for preparing mixtures of silicon with graphite [6,7], with different carbon precursors [8][9][10] or with graphite and a carbon precursor together [11][12][13]. Several authors [8,10,[14][15][16] stated that Si/C composites prepared by ball milling show a better reversible capacity than graphite and an improved cyclability compared to raw silicon.…”

Electrochemical characterization with homopolymer of 2-propen-1-amine coating on artificial graphite/carbon/silicon composites as anode materials for lithium ion batteries

“…By contrast, carbon of the C/Si composite materials can buffer the volume expansion and enhance the electronic conductivity [20][21][22][23][24][25]. The buffer matrix can effectively reduce the volume expansion of metal oxide during the lithium intercalation, preventing mechanical failure and resulting in improved cycle life [26][27][28][29][30][31][32][33]. Combining nanostructures and carbon composites is practical for enhancing the electrochemical performance of silicon.…”