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Battery with auxiliary electrode

  • US 9,287,580 B2
  • Filed: 07/27/2011
  • Issued: 03/15/2016
  • Est. Priority Date: 07/27/2011
  • Status: Active Grant
First Claim
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1. A lithium-ion battery comprising:

  • a case;

    an electrolyte;

    a positive electrode including a current collector and an active material;

    a negative electrode including a current collector and an active material; and

    an auxiliary electrode including an active material selected from the group consisting of silver vanadium oxide, carbon monofluoride, and manganese dioxide;

    wherein the electrolyte, positive electrode, negative electrode, and auxiliary electrode are disposed within the case; and

    wherein the auxiliary electrode is configured to selectively couple to the negative electrode to irreversibly absorb lithium from the negative electrode.

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