Perpustakaan Digital ITB

Recently, the development of silicon-based anodes for lithium-ion batteries has attracted tremendous attentionfor overcoming the disadvantages of commercial graphite-based anodes. In this work, we suggest a chemical methodology ofsynthesizing silicon?carbon composite anodes, with capacity values of 763 and 182 mAh/g at current densities of 0.1 and 5 A/g, respectively. An electrostatic assembly technique is designed to be triggered by a cationic polyelectrolyte, poly(ethylenimine),for negatively charged silicon nanoparticles and graphene oxides. Amine-functionalized carbon nanotubes are synthesized in anondestructive fashion and incorporated additionally to provide intraconnected conductive pathways between neighboringcomposite materials. It is revealed that the electrochemical performance of intraconnected composite materials is determined bythe chemical/physical factors of constituent compartments. The applicability toward all-solid-state batteries is also suggestedwith usage of a solid polymer electrolyte synthesized from a mixture of bisphenol A ethoxylate diacrylate, polyethylene glycoldimethyl ether,tert-butyl peroxypivalate, and bis(trifluoromethane)sulfonimide lithium salt