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 Battery packaging construction for alkali metal multicell batteries

Details
Inventors: Hope, Stephen F.; Kejha, Joseph B.;
Assignee:
Primary Examiner: Skapars; Anthony
Assistant Examiner:
Attorney, Agent or Firm: Wobesmith, III; Z. T.

Battery packaging construction for multiple cell alkali metal batteries wherein a plurality of flat or cubic battery cells, which have leads extending therefrom, are individually packaged by using layers of heat sealed or adhesively sealed plastic tape. The cells after assembly are stacked and the leads are electrically connected in series or parallel to terminals, and are secured by a band of tape, or glued together, and then enclosed in a plastic coated metal foil bag, heat sealed and adhesive sealed for moisture-proofing. The bag is placed in a hard box which is then closed to form the completed battery with the terminals extending therefrom. The hard box may optionally be provided with a liner of vibration and impact shock absorbing material.

DETAILED DESCRIPTION We claim: 1.
Battery packaging construction for packaging multicell alkali metal or alkaline earth metal batteries which comprises a plurality of battery cells in stacked configuration, said cells each having a base layer of electrically insulating tape, a battery cell on said base layer, a top layer of electrically insulating tape on said cell extending over and in contact with said tape base layer, leads extending from each of said cells between said tapes and therefrom and electrically connected in series or parallel to the leads of another cell, a moisture proof bag enclosing said stack of cells in sealed relationship, terminals connected to said cell leads and extending from said bag, and a hard box enclosing said bag, with said terminals extending from said box.
2.
Battery packaging construction as defined in claim 1 in which said base tape and said top tape layers are of plastic coated with adhesive, which adhesive faces said cell.
3.
Battery packaging construction as defined in claim 1 in which said base tape and said top tape layers are of heat sealable plastic.
4.
Battery packaging construction as defined in claim 2 in which said adhesive and said plastic are anhydrous.
5.
Battery packaging construction as defined in claim 3 in which said plastic is anhydrous.
6.
Battery packaging construction as defined in claim 1 in which said leads and said terminals are electrically connected by cold soldering.
7.
Battery packaging construction as defined in claim 1 in which said leads and said terminals are electrically connected by electrically conductive adhesive transfer tape.
8.
Battery packaging construction as defined in claim 6 in which said cold soldering material is lithium.
9.
Battery packaging construction as defined in claim 1 in which said base layer and/or said top layers of electrically insulated tapes are continuous and used as a carrier of individual cells during mass production.
10.
Battery packaging construction as defined in claim 1 in which said hard box is lined with a layer of vibration, and shock absorbing material


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