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Intercell connector for lithium batteries
| Details |
Inventors: Bruder, Alan H.;
Assignee: Polaroid Corporation (Cambridge, MA)
Primary Examiner: Skapars; Anthony
Assistant Examiner:
Attorney, Agent or Firm: Maccarone; Gaetano D.
Laminar batteries of series connected cells comprising lithium anodes and an electrolyte containing a passivating solvent reactive with lithium in which the cells are electrically connected in series by intercell barriers comprising outer layers of electrochemically inert electronically conducting material in contact with the electrochemically active anode and cathode of adjacent cells and a layer of metal foil between the electrochemically inert layers. |
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DETAILED DESCRIPTION Having thus described the invention, what is claimed is: 1.
An intercell assembly for lithium batteries, comprising an electrically insulating frame of thermoplastic material formed with a cental aperture, a thin sheet of aluminum foil coated on both sides with a conductive plastic adhesive and adhered on a rirst side to a first side of said frame in regions surrounding said aperture, a first layer of conductive plastic adhered to said aluminum foil on a second side opposite said first side, a second layer of conductive plastic adhered to said frame on a second side opposite said first side in regions surrounding said aperture and adhered to said aluminum foil in regions within said aperture, and a thin sheet of metallic lithium adhered to said second layer of conductive plastic on a side thereof opposite said aluminum foil.
Description:
This invention relates to electrical batteries, and particularly to a novel integral multicell lithium battery.
Lithium batteries have been long known to have potentially superior qualities, such as tolerance for low temperature, high energy density, and long shelf life, but have hitherto been adopted for use only in limited quantities and for highly specialized applications.
As pointed out in an article entitled "Focus On Lithium Batteries: High Energy For Critical Needs", Electronic Design, Dec.
10, 1981, pgs.
183-198, at page 183, the reasons for this limited acceptance have been simple, but compelling; conventional lithium batteries are very expensive, and have a reputation for being dangerous.
The conventional approach to the design and construction of lithium batteries revolves about a conception of the battery as a single cell encapsulated in a metal container, as of nickel plated steel, and comprising a lithium disc formed integral with a grid of nickel plated steel, or stainless steel, as a current collector.
The cathode is a solid pressed pellet of any of various reductants held in a metal cup, as by a metal ring
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Fuel Cells 
