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LITHIUM-ION BATTERY

  • US 20100009245A1
  • Filed: 07/29/2009
  • Published: 01/14/2010
  • Est. Priority Date: 10/29/2004
  • Status: Active Grant
First Claim
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1. A battery comprising:

  • a positive electrode comprisinga current collector anda first active material;

    a negative electrode comprisinga current collector anda second active material; and

    an auxiliary electrode comprisinga current collector anda third active material;

    wherein the auxiliary electrode is configured for selective electrical connection to the negative electrode;

    wherein the first active material, the second active material, and the third active material are configured to allow doping and undoping of lithium ions; and

    wherein the third active material exhibits charging and discharging capacity below a corrosion potential of the current collector of the negative electrode and above a decomposition potential of the first active material.

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