Ionic liquid electrolyte of lithium bis(fluorosulfonyl)imide/N-methyl-N-propylpiperidinium bis(fluorosulfonyl)imide for Li/natural graphite cells: Effect of concentration of lithium salt on the physicochemical and electrochemical properties

• Published in: Electrochimica acta Vol. 149; pp. 370 - 385
• Main Authors: Liu, Chengyong, Ma, Xiaodi, Xu, Fei, Zheng, Liping, Zhang, Heng, Feng, Wenfang, Huang, Xuejie, Armand, Michel, Nie, Jin, Chen, Hanlin, Zhou, Zhibin
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 10.12.2014
• Subjects: Anions; Density; Electrodes; Electrolyte; Electrolytes; Graphite; Imides; Ionic liquids; Li-ion battery; Lithium; Lithium bis(fluorosulfonyl)imide; N-methyl-N-propylpiperidinium bis(fluorosulfonyl)imide; Reduction (electrolytic); Ionic liquids; Electrolyte; Lithium bis(fluorosulfonyl)imide; N-methyl-N-propylpiperidinium bis(fluorosulfonyl)imide; Li-ion battery

•Ionic liquid electrolytes containing various concentrations of lithium bis(fluorosulfonyl) imide (LiFSI) are characterized.•Their electrochemical properties on electrodes highly depend on the concentration of LiFSI.•High Li-ion reversibility in graphite electrodes are obtained in the LiFSI concentr...