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Composite electrode including current collector

  • US 6,159,635 A
  • Filed: 09/29/1998
  • Issued: 12/12/2000
  • Est. Priority Date: 09/29/1998
  • Status: Expired due to Term
First Claim
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1. In a rechargeable lithium battery having a negative electrode, a positive electrode, a metallic current collector adjacent each electrode and a non-aqueous electrolyte, the improvement comprising, that an organic polymer laminate having two opposing faces and rendered electrically conductive by embedded electrically conductive particles, is inserted between at least one of the electrodes and the adjacent metallic current collector, thereby forming a composite electrode including said positive or said negative electrode, comprising said electrically conductive organic polymer laminate having one face in contact with said metallic current collector and another face with said positive or said negative electrode, said electrically conductive organic polymer laminate having a thickness, said thickness and said opposing faces defining a total volume, said electrically conductive organic polymer laminate having a positive temperature coefficient of resistivity, a resistivity switch temperature Trs, between 75 and 120°

  • C., said electrically conductive organic polymer laminate being capable of reversible resistivity change of at least 2 orders of magnitude within a 5°

    temperature band of said Trs, and wherein said electrically conductive organic polymer is capable of having said reversible resistivity change in a portion of the total volume of said electrically conductive organic polymer laminate.

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