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Secondary battery and secondary battery module

  • US 20110244309A1
  • Filed: 02/08/2011
  • Published: 10/06/2011
  • Est. Priority Date: 03/30/2010
  • Status: Active Grant
First Claim
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1. A secondary battery, comprising:

  • an electrode assembly, the electrode assembly including a positive electrode, a negative electrode, and a separator therebetween;

    a case for accommodating the electrode assembly;

    a cap plate for sealing the case; and

    at least one terminal unit, the at least one terminal unit including;

    an electrode rivet electrically connected to one of the electrodes of the electrode assembly and formed of a first metallic material,a rivet terminal formed of a second metallic material, the second metallic material being different from the first metallic material, anda clad unit between the electrode rivet and the rivet terminal.

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