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Secondary Cell

  • US 20110195286A1
  • Filed: 02/07/2011
  • Published: 08/11/2011
  • Est. Priority Date: 02/08/2010
  • Status: Active Grant
First Claim
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1. A secondary cell, comprising:

  • an electrode roll in which a positive foil on which a positive-electrode material is coated and a negative foil on which a negative-electrode material is coated are winded through a separator into a flat shape around a winding core;

    a case in which the electrode roll is housed;

    a cover which seals the case;

    a positive terminal and a negative terminal provided on the cover;

    a positive electrode current collector plate that is electrically connected to the positive foil of the electrode roll and the positive terminal and held by the cover; and

    a negative electrode current collector plate that is electrically connected to the negative foil of the electrode roll and the negative terminal and held by the cover, wherein;

    the positive electrode current collector plate and the negative electrode current collector plate are each connected to the winding core.

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