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Effect of Fluoroethylene Carbonate Additive on Low Temperature Performance of Li-Ion Batteries

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Liu, Bingxiao, Li, Bing, Guan, Shiyou·2012·Electrochemical and Solid-State Letters

Abstract

The effects of Fluoroethylene carbonate (FEC) on the low temperature performance of Li-ion batteries were evaluated. By addition of 2 v% FEC into a commercial ternary electrolyte, the initial lithium intercalation capacity (graphite/Li model cell) was remarkably improved by approximately 50% and the voltage plateau of the cell was lowered by about 0.2 V at −20°C. This is maybe attributed to a reduced charge transfer resistance and a lowered SEI film resistance with a richer LiF phase formed on the graphite electrode by Tafel polarization, AC impedance and X-ray photoelectron spectroscopy (XPS) analysis.

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Crossref · 10.1149/2.027206esl

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  • In contrast, only about 175 mAh g-1 was obtained at the same condition for a cell using the electrolyte without FEC.

    “In contrast, only ~ 175 mAh g -1 was obtained at the same condition for a cell using the electrolyte without FEC (Fig. 14a) [125].”

    From Review on Low-Temperature Electrolytes for Lithium-Ion and Lithium Metal Batteries (2023) · cites this paper as [125]

    The Results and Discussion section reports that a cell without FEC had a lower first-cycle discharge capacity at −20 °C than a cell with 2% FEC. It does not give an absolute capacity of approximately 175 mAh g⁻¹, so the cited text supports the comparison but not the claimed number. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • By using conventional carbonate electrolyte with FEC as additive, a capacity of about 320 mAh g-1 was delivered when a Li/graphite cell was discharged at -20 °C at a 1/15C rate.

    “By using conventional carbonate electrolyte with FEC as the additive, it was reported that a capacity of ~ 320 mAh g -1 was delivered when a Li/graphite cell was discharged at -20 °C (a 1/15C rate).”

    From Review on Low-Temperature Electrolytes for Lithium-Ion and Lithium Metal Batteries (2023) · cites this paper as [125]

    The Experimental section (page unavailable) describes Li/graphite cells using a carbonate electrolyte with FEC and discharge at −20 °C at 1/15C. Results and Discussion (page unavailable) reports increased discharge capacity with FEC, but our copy gives no value of approximately 320 mAh g⁻¹; a search for 320 did not find it. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The benefit of using FEC decreased rapidly during cycling and became insignificant after 25 cycles at -20 °C.

    “Unfortunately, the benefit of using FEC decreased rapidly during cycling and became insignificant after 25 cycles at -20”
  • The difference in capacity with and without FEC was attributed to decreased charge transfer and SEI impedance after forming LiF-rich SEIs with FEC.

    “This difference was attributed to the decreased charge transfer and the SEI impedance after forming LiF-rich SEIs with FEC.”

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Cites

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Research works printed but not linked: 16

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Authors
Liu, B., Li, B., & Guan, S.
Affiliations
East China University of Science and Technology (CN)
Venue
Electrochemical and Solid-State Letters
Published
2012
Volume
15
Issue
6
Pages
A77
ISSN
1099-0062 (ISSN-L)
OpenAlex
W2068358703
Cited by
79
References
0
Citations by year
2026: 3 · 2025: 7 · 2024: 3 · 2023: 9 · 2022: 9 · 2021: 7 · 2020: 8 · 2019: 5 · 2018: 5 · 2017: 4 · 2016: 6 · 2015: 5 · 2014: 4 · 2013: 3 · 2012: 1
FWCI
2.66
Type
journal article
Language
en
Open access
Locations
Electrochemical and Solid-State Letters (publishedVersion)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advancements in Battery Materials
  • Physical Sciences › Engineering › Automotive Engineering › Advanced Battery Technologies Research
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Battery Materials and Technologies
Keywords
fluoroethylene carbonate, electrolyte additives, low-temperature performance, lithium-ion batteries, ternary electrolyte solutions, graphite electrodes, solid electrolyte interphase, charge transfer resistance, voltage plateau

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