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Synergetic effects of inorganic components in solid electrolyte interphase on high cycle efficiency of lithium ion batteries

  • Qinglin Zhang
  • , Peng Lu
  • , Zhongyi Liu
  • , Mark W. Verbrugge
  • , Xingcheng Xiao
  • , Jie Pan
  • , Yang Tse Cheng
  • , Brian W. Sheldon
  • , Yue Qi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

The solid electrolyte interphase (SEI), a passivation layer formed on electrodes, is critical to battery performance and durability. The inorganic components in SEI, including lithium carbonate (Li2CO3) and lithium fluoride (LiF), provides both mechanical and chemical protection, meanwhile controls lithium ion transport. Although both Li2CO3 and LiF have relatively low ionic conductivity, we surprisingly found that the contact between Li2CO3 and LiF can promote space charge accumulation along their interfaces, which generates a higher ionic carrier concentration and significantly improves lithium ion transport and reduces electron leakage. The synergetic effect of the two inorganic components leads to high current efficiency and long cycle stability.

Original languageEnglish
Title of host publicationBattery Congress 2016
ISBN (Electronic)9781510825635
StatePublished - 2016
EventBattery Congress 2016 - Troy, United States
Duration: May 16 2016 → May 18 2016

Publication series

NameBattery Congress 2016

Conference

ConferenceBattery Congress 2016
Country/TerritoryUnited States
CityTroy
Period5/16/16 → 5/18/16

Funding

FundersFunder number
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China1355438

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 7 - Affordable and Clean Energy
      SDG 7 Affordable and Clean Energy

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Fuel Technology

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