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Battery cell with an integrated pouch metal foil terminal

  • US 9,136,509 B2
  • Filed: 05/27/2011
  • Issued: 09/15/2015
  • Est. Priority Date: 05/27/2011
  • Status: Active Grant
First Claim
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1. An automated method for charging a rechargeable battery that is encased in a pouch having a conductive moisture barrier layer made of electrically insulated metal foil, the method comprising:

  • while charging the battery through first and second power terminals that are directly connected to battery cell electrodes, respectively, and are integrated with the pouch, applying a predetermined current to the metal foil, through a third terminal that is directly connected to the metal foil, while sensing a voltage of the metal foil through the third terminal, wherein the applied current is sourced from a power terminal of the battery;

    comparing the sensed voltage to a threshold; and

    based on the comparison, preventing the battery from being charged.

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