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SCREEN-LESS ANODE DESIGN CONCEPTS FOR LOW COST LITHIUM ELECTROCHEMICAL CELLS FOR USE IN IMPLANTABLE MEDICAL DEVICE APPLICATIONS

  • US 20110104542A1
  • Filed: 10/28/2010
  • Published: 05/05/2011
  • Est. Priority Date: 10/30/2009
  • Status: Active Grant
First Claim
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1. An electrochemical cell, which comprises:

  • a) a casing;

    b) an anode comprising;

    i) a body of lithium as an anode active material having an upper edge and a spaced apart lower edge defining an anode height, both the upper and lower edges extending to and meeting with right and left edges defining an anode width; and

    ii) an anode current collector as a metal strip devoid of perforations and having a length extending from a distal end of a distal portion to a proximal end of at least one proximal portion contacted by the lithium body, the distal end being electrically connected to an anode terminal; and

    c) a cathode of at least one cathode active material contacted to at least one side of a cathode current collector;

    d) a separator disposed between the anode and the cathode to prevent direct physical contact between them; and

    e) a nonaqueous electrolyte activating the anode and the cathode housed inside the casing.

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