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SECONDARY BATTERY

  • US 20110140666A1
  • Filed: 10/13/2010
  • Published: 06/16/2011
  • Est. Priority Date: 12/15/2009
  • Status: Active Grant
First Claim
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1. A secondary battery connectable to an external connection portion, the secondary battery comprising:

  • an electrode assembly comprising a separator interposed between a cathode and an anode, the cathode, the separator and the anode being wound;

    an electrode terminal connected to the cathode and anode;

    a case which accommodates the electrode assembly within the case and includes an accommodation groove recessed into an exterior surface of the case; and

    a connection terminal connected to the electrode terminal and electrically connectable to the external connection portion,wherein the accommodation groove accommodates the external connection portion therein.

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