Hybrid anode materials consisting of micro-sized silicon (Si) particles interconnected with few-layer graphene (FLG) nanoplatelets and sodium-neutralized poly(acrylic acid) as a binder were evaluated for Li-ion batteries. The hybrid film has demonstrated a reversible discharge capacity of ∼1800 mA h g-1 with a capacity retention of 97% after 200 cycles. The superior electrochemical properties of the hybrid anodes are attributed to a durable, hierarchical conductive network formed between Si particles and the multi-scale carbon additives, with enhanced cohesion by the functional polymer binder. Furthermore, improved solid electrolyte interphase (SEI) stability is achieved from the electrolyte additives, due to the formation of a kinetically stable film on the surface of the Si.
CITATION STYLE
Loveridge, M. J., Lain, M. J., Huang, Q., Wan, C., Roberts, A. J., Pappas, G. S., & Bhagat, R. (2016). Enhancing cycling durability of Li-ion batteries with hierarchical structured silicon-graphene hybrid anodes. Physical Chemistry Chemical Physics, 18(44), 30677–30685. https://doi.org/10.1039/c6cp06788c
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