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LITHIUM-ION BATTERY

  • US 20090286158A1
  • Filed: 07/28/2009
  • Published: 11/19/2009
  • Est. Priority Date: 10/29/2004
  • Status: Active Grant
First Claim
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1. A lithium-ion battery comprising:

  • a positive electrode comprisinga positive current collector havinga primary active material anda secondary active material provided on at least one side thereof;

    a negative electrode comprisinga negative current collector andan active material provided on the negative current collector;

    wherein the secondary active material does not include lithium, andwherein the secondary active material provides for a charging and discharging capacity of the positive electrode that is below a corrosion potential of the negative current collector and above a decomposition potential of the primary active material.

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