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Stabilized anode for lithium-polymer batteries

  • US 5,961,672 A
  • Filed: 07/07/1997
  • Issued: 10/05/1999
  • Est. Priority Date: 02/16/1994
  • Status: Expired due to Term
First Claim
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1. A method for making a battery cell, said method comprising:

  • (a) providing a lithium anode having a lithium surface;

    (b) providing a non-aqueous organic electrolyte containing a dissolved lithium salt;

    (c) depositing on said lithium surface an anode stabilizing film, wherein said anode stabilizing film is deposited by vacuum deposition using a monomeric or oligomeric starting material, and wherein said anode stabilizing film has a chemical structure which is different than the chemical structure of said monomeric or oligomeric starting material; and

    ,(d) providing a cathode comprising a cathode active material;

    wherein;

    said anode stabilizing film is interposed between said lithium anode and said electrolyte; and

    ,said electrolyte is interposed between said anode stabilizing film and said cathode.

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