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METHOD FOR FORMING LITHIUM METAL AND INORGANIC MATERIAL COMPOSITE THIN FILM AND METHOD FOR PRE-LITHIATION OF NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY BY USING SAME

  • US 20200136128A1
  • Filed: 08/03/2018
  • Published: 04/30/2020
  • Est. Priority Date: 08/10/2017
  • Status: Active Grant
First Claim
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1. A method for pre-lithiating a negative electrode, the method comprising:

  • adding an inorganic powder to molten lithium to form a mixture;

    extruding the mixture and cooling the mixture to prepare a lithium metal-inorganic composite ribbon having a thickness of 100 μ

    m to 200 μ

    m;

    rolling the lithium metal-inorganic composite ribbon to produce a lithium metal-inorganic composite film; and

    bonding the lithium metal-inorganic composite film on a surface of the negative electrode to form a lithium metal-inorganic composite layer on the surface of the negative electrode.

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