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Bipolar lithium-ion rechargeable battery

  • US 5,595,839 A
  • Filed: 06/01/1995
  • Issued: 01/21/1997
  • Est. Priority Date: 10/13/1994
  • Status: Expired due to Term
First Claim
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1. A bipolar rechargeable lithium-ion battery comprising:

  • a plurality of individual electrochemical cells having positive and negative electrodes disposed in opposite face-to-face arrangement with a porous separator containing electrolyte therebetween, wherein the positive and negative electrodes of adjacent cells are disposed in electrical connection respectively with opposite sides of a common current-collecting element forming a unitary bipolar structure, said negative electrode comprising a layer of carbon adhered to one of said opposite sides of said current-collecting element and said positive electrode comprising a layer containing a lithium transition metal oxide compound adhered to the other opposite side of said element, and wherein said electrolyte comprises a lithium salt dissolved in a non-aqueous, organic solvent, and means for joining said unitary bipolar structure of adjacent cells together in a sealed stacked array.

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