Intercell connector for lithium batteries

• US 4,477,544 A
• Filed: 10/06/1983
• Issued: 10/16/1984
• Est. Priority Date: 01/20/1982
• Status: Expired due to Fees

• Current Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Original Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Inventors: Bruder, Alan H.
• Primary Examiner(s): Skapars, Anthony
• Application Number:
  US06/539,644
• Time in Patent Office: 376 Days
• Field of Search: 429/160, 429/152, 429/149, 429/162, 429/130
• US Class Current: 429/160
• CPC Class Codes: H01M 4/66 Selection of materials
• CPC Class Codes: H01M 4/663 containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
• CPC Class Codes: H01M 4/666 in the form of mixed materials H01M4/668 takes precedence
• CPC Class Codes: H01M 4/667 in the form of layers, e.g. coatings
• CPC Class Codes: H01M 6/48 with bipolar electrodes

Abstract

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.

Claims

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.