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Medical device having lithium-ion battery

  • US 20060093913A1
  • Filed: 10/29/2004
  • Published: 05/04/2006
  • Est. Priority Date: 10/29/2004
  • Status: Active Grant
First Claim
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1. A medical device comprising:

  • a rechargeable lithium-ion battery for providing power to the medical device, the lithium-ion battery comprising;

    a positive electrode comprising a current collector and an active material comprising a material selected from the group consisting of LiCoO2, LiMn2O4, LiNixCoyNi(1−

    x−

    y)
    O2, LiAlxCoyNi(1−

    x−

    y)
    O2, LiTixCoyNi(1−

    x−

    y)
    O2, and combinations thereof; and

    a negative electrode comprising a current collector and an active material comprising a lithium titanate material;

    the current collector of the negative electrode comprising a material selected from the group consisting of aluminum, titanium, and silver;

    whereby the battery is configured for cycling to near-zero-voltage conditions without a substantial loss of battery capacity.

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