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Vinyl ethylene carbonate as an additive to ionic liquid electrolyte for lithium ion batteries

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Abstract

In this research, we investigated the potential application of vinyl ethylene carbonate (VEC) and ethylene carbonate (EC) as solid electrolyte interface (SEI) film-forming additive in 1-ethyl-3-methylimidazolium (EMI)-bis(trifluoromethyl-sulfonyl) imide (TFSI)-LiTFSI ionic liquid electrolyte (IL). The electrochemical performance of natural graphite (NG7) was studied in LiTFSI/EMI-TFSI containing different weight percent of EC/VEC via cyclic voltammetry (CV), electrochemical impedance spectrum (EIS), and galvanostatic charge/discharge cycles. Temperature effect on the discharge/charge performance of NG7 electrode in the researched IL electrolyte was also discussed.

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Acknowledgment

The author would like to acknowledge the financial support by Shanghai Leading Academic Discipline Project (No. B113), by the Scientific Research Starting Foundation for Returned Overseas Chinese Scholars, Ministry of Education, China and by Fudan’s Undergraduate Research Opportunities Program.

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Authors and Affiliations

  1. Department of Materials Science, Fudan University, Shanghai, 200433, China

    Yanbao Fu, Cheng Chen, Chenchen Qiu & Xiaohua Ma

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  1. Yanbao Fu
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  2. Cheng Chen
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  3. Chenchen Qiu
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  4. Xiaohua Ma
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Correspondence to Xiaohua Ma.

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Fu, Y., Chen, C., Qiu, C. et al. Vinyl ethylene carbonate as an additive to ionic liquid electrolyte for lithium ion batteries. J Appl Electrochem 39, 2597–2603 (2009). https://doi.org/10.1007/s10800-009-9949-4

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  • DOI: https://doi.org/10.1007/s10800-009-9949-4

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