Cited by 92Advancements in Battery MaterialsAdvanced Battery Technologies ResearchAdvanced Battery Materials and Technologies

2,3,4,5,6-Pentafluorophenyl Methanesulfonate as a Versatile Electrolyte Additive Matches LiNi0.5Co0.2Mn0.3O2/Graphite Batteries Working in a Wide-Temperature Range

Yang, Tianxiang, Fan, Weizhen, Wang, Chengyun, Lei, Qiufen, Ma, Zhen, Yu, Le, Zuo, Xiaoxi, Nan, Junmin·2018·ACS Applied Materials & Interfaces

Abstract

An electrolyte using 2,3,4,5,6-pentafluorophenyl methanesulfonate (PFPMS) as a versatile additive is investigated through calculating the molecular orbital energies of additives and solvents and designing the electrolyte composition, and the comparative performances of LiNi 0.5 Co 0.2 Mn 0.3 O 2 /graphite cells operating in a wide-temperature range are improved. It is revealed that PFPMS can form interfacial films on both the cathode and anode surfaces, resulting in a decrease of the cell impedance and the side reactions between the active materials and electrolyte. Compared to the cells without additive of 74.9% and those with vinylene carbonate (VC) of 76.7%, the cycling retention of the cell with 1.0 wt % PFPMS reaches 91.7% after 400 cycles at room temperature. In particular, for the high-temperature storage at 60 °C for 7 d, the cell containing 1.0 wt % PFPMS exhibits optimal capacity retention of 86.3% and capacity recovery of 90.6%; for the low-temperature discharge capacity retention at -20 °C, the cell with 1.0 wt % PFPMS maintains at 66.3% at 0.5 C, while for the cells without additive and containing 1.0 wt % VC, their retention values are 55.0 and 62.1%, respectively. The excellent cycling, wide-temperature practicability, and rate capability of the cells with PFPMS demonstrate that the electrolyte with PFPMS additive is promising for applications in LiNi 0.5 Co 0.2 Mn 0.3 O 2 /graphite batteries.

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Crossref · 10.1021/acsami.8b04743

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  • The low-impedance SEI in the PFPMS system was composed of S-containing decomposition products (ROSO2Li) and less LiF and Li2CO3, yielding faster ionic transportation.

    “According to the XPS results (Fig. 15b), this low impedance SEI was composed of S-containing decomposition products (i.e., ROSO 2 Li), and less LiF and Li 2 CO 3 , yielding faster ionic transportation.”
  • PFPMS participates in both SEI and CEI formation, stabilizing NCM523 and graphite.

    “The PFPMS was able to participate in both SEI and CEI formation, which stabilizes NCM523 and graphite based on the theoretical calculation and experimental results.”
  • The improved performance with PFPMS was attributed to a lower-resistance interphase, resulting in better ionic conductivity at low temperatures in full cells.

    “This improved performance was attributed to the as-formed lower resistance interphase in PFPMS electrolytes compared to VC-additive and no-additive systems, resulting in better ionic conductivity at LTs in full cells.”
  • Cells containing PFPMS delivered 72.3% and 66.3% of RT capacity at -20 °C at 0.2 C and 0.5 C, better than 67.8% and 55.0% without additives and 70.5% and 62.1% with 1% VC.

    “cells containing PFPMS delivered 72.3% and 66.3% of the RT capacity when discharged at -20 °C, with 0.2 C and 0.5 C rates, respectively, better than 67.8% and 55.0% for the cells without additives and 70.5% and 62.1% for the cells with 1% VC additive under the same conditions.”
  • There are competing arguments in the literature that improved battery performance at low temperatures was obtained by decreasing inorganic species including LiF in SEIs.

    “there are competing arguments regarding the effects of inorganic components of SEIs in the literature claiming that improved battery performance was obtained at LTs by decreasing inorganic species including LiF in SEIs.”

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Authors
Yang, T., Fan, W., Wang, C., Lei, Q., Ma, Z., Yu, L., Zuo, X., & Nan, J.
Affiliations
  • South China Normal University (CN)
  • Guangzhou Tinci Materials Technology Co., Ltd., Guangzhou 510760, PR China
Corresponding author
Nan, Junmin
Venue
ACS Applied Materials & Interfaces
Published
2018-08-21
Volume
10
Issue
37
Pages
31735-31744
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2888762693
Cited by
92
References
59
Citations by year
2026: 10 · 2025: 5 · 2024: 9 · 2023: 20 · 2022: 13 · 2021: 15 · 2020: 13 · 2019: 7
FWCI
3.35
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Applied Materials & Interfaces (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Guangzhou Science and Technology Program key projects (201704030020, 201604016131, 2014J4500025)
  • Guangdong Province (2015B010135008)
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
electrolyte additives, LiNi0.5Co0.2Mn0.3O2, NCM cathode, graphite anode, lithium-ion batteries, wide temperature range operation, vinylene carbonate, cycling stability, high-temperature storage, low-temperature discharge, molecular orbital energies

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