Lithium intercalated graphite with preformed passivation layer as superior anode for Lithium ion batteries

Sukyoung Choi, Gyujin Jung, Jong Eun Kim, Tae Young Kim, Kwang S. Suh

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Graphite has been the most common anode materials in the Li-ion batteries (LIBs). However, it has a limited Coulombic efficiency and cycling stability which are crucial for the practical use of LIBs. Here, we present a lithium (Li)-intercalated graphite (LIG) electrode with a stable passivating layer on the surface for an improved electrochemical performance. The LIG was prepared by thermal treatment of commercial graphite in the presence of Li metal vapor and subsequent exposure to air. Characterization revealed that the surface of LIG was passivated by a thin inorganic compound (Li 2 CO 3 ). This passivation layer on the graphite surface function as a preformed stable solid electrolyte interphase (SEI) films and allows the graphite electrode to deliver a high reversible capacity, high Coulombic efficiency, and stable cycle life.

Original languageEnglish
Pages (from-to)367-372
Number of pages6
JournalApplied Surface Science
Publication statusPublished - 2018 Oct 15

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF- 2016R1D1A1B01008736 ). This work was also supported by the Gachon University research fund of 2016. (GCU- 2016-0217 )

Publisher Copyright:
© 2018


  • Graphite anode
  • Li pre-charging
  • Li-ion battery
  • Passivating layer
  • Solid electrolyte interphase

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • General Physics and Astronomy
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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