A review on advanced functional electrolyte additives for silicon-based lithium-ion batteries
Journal: Asian Journal of Green Chemistry (Vol.4, No. 4)Publication Date: 2020-10-01
Authors : Behrooz Mosallanejad;
Page : 473-490
Keywords : Lithium-ion battery; Electrolyte additive; Silicon anode; Solid electrolyte interface;
Abstract
In last decades, many efforts have been made to commercialize the silicon (Si) as anode material with a capacity of ten times higher than that of conventional graphite anode to enhance the energy and power density of the state of the art lithium-ion batteries (LIBs). However, the Si anodes suffer from large volume expansion during the charge/discharge process and continuous formation breaking reformation process of solid electrolyte interface (SEI) layer that may cause poor cycle life, hindering the commercialization of the Si anode. Various strategies have been used to overcome the above-mentioned problems, and one of those strategies is the use of the functional electrolyte additives. Among these additives, fluoroethylene carbonate (FEC) has been known as the most effective additive for the Si-based LIBs. This was found to be attributed to the ability of this compound to form a robust and stable SEI layer on the Si surface. This review comprehensively studies the diverse additives used in Si-based LIBs in last years.
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Last modified: 2020-09-01 01:55:59