Enhanced overall electrochemical performance of silicon/carbon anode for lithium-ion batteries using fluoroethylene carbonate as an electrolyte additive

Top‐Down Synthesis of Silicon/Carbon Composite Anode Materials for Lithium‐Ion Batteries: Mechanical Milling and Etching

“…In this case, high CE, excellent electrochemical stability and long cycle life of Si‐based electrodes can be achieved. Therefore, it is of paramount importance to keep a stable and dense SEI layer for long cycle life of Si‐based anodes . Besides, both the poor electronic conductivity and Li‐ion diffusion rates in Si can result in unsatisfactory rate capability, particularly at high current densities.…”

“…Si–metal alloys were also investigated as one of the solutions to circumvent the major issues of Si. In addition to the highlighted strategies, novel conductive polymer binders such as polyaniline (PANi) hydrogels, poly(3,4‐ethylenedioxythiophene):poly(styrene‐4‐sulfonate) (PEDOT:PSS), poly(aniline‐ co ‐anthranilic acid) (PAAA), and electrolyte additives such as fluoroethylene carbonate (FEC) and vinylene carbonate (VC) were also utilized to improve the electrochemical performance of Si‐based anodes. Novel conducting polymeric binders outperform the most commonly used binders since they integrate dual functions of traditional conductive additives and binders, thereby increasing the electrode volumetric as well as gravimetric capacities .…”

Optimal Quantity of Nano-Silicon for Electrospun Silicon/Carbon Fibers as High Capacity Anodes

“…With the development of anode materials for LIBs, the defects and advantages of various new materials are highlighted. Among all anode materials, silicon (Si) is particularly promising due to its extremely high theoretical capacity (∼4,200 mAh g −1 ), low discharge voltage, and natural abundance (Wen et al, 2013;Pan et al, 2015;Tang et al, 2015;Xie et al, 2015;Casimir et al, 2016;Wang and Yang, 2017;Yamaguchi et al, 2017;Zuo et al, 2017;Fang et al, 2019). However, Si as an anode material undergoes significant volume expansion during the Li + ion lithiation/delithiation process, leading to particle fracture and loss of capacity (Datta et al, 2011;Zhong et al, 2014;Huang et al, 2016;Jeong et al, 2016;Lin et al, 2016;Yang et al, 2016;Kim et al, 2017).…”

Understanding the Role of Fluorination on the Interaction of Electrolytic Carbonates with Li+ through an Electronic Structure Approach

“…Fluoroethylene carbonate has been studied as a binary mixture with other non‐fluorinated/fluorinated solvents ,. Several reports have found significant improvement in the performance of the Li‐ion battery with the implementation of fluorinated carbonates as electrolyte ,. Furthermore, significant improvement in the cyclic stability of the anode/cathode materials has been observed in the presence of fluorinated carbonate .…”