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High power, high energy, hybrid electrode and electrical energy storage device made therefrom

  • US 5,744,258 A
  • Filed: 12/23/1996
  • Issued: 04/28/1998
  • Est. Priority Date: 12/23/1996
  • Status: Expired due to Term
First Claim
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1. A hybrid electrode for a high power, high energy, electrical storage device, said hybrid electrode comprising:

  • a current collector;

    a first electroactive material; and

    a second electroactive material,wherein;

    the first electroactive material has a higher energy density than the second electroactive material;

    the second electroactive material has a higher rate capability than the first electroactive material; and

    one of the first and second electroactive materials is formed as a first discrete layer in contact with the current collector, and the other of the first and second electroactive materials is formed as a second discrete layer deposited onto the first discrete layer.

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