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Battery electrode sheet and manufacturing method therefor

  • US 8,637,189 B2
  • Filed: 08/05/2011
  • Issued: 01/28/2014
  • Est. Priority Date: 08/18/2010
  • Status: Active Grant
First Claim
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1. An electrode sheet comprising:

  • a sheet of metal foil;

    at least one region coated with at least one active material layer subjected to working by rolling, the at least one coated region being provided in at least one central portion of the sheet of metal foil;

    at least one region uncoated with the at least one active material layer, the at least one uncoated region being provided in at least one edge portion of the sheet of metal foil; and

    at least one region subjected to working by drawing, the at least one drawn region being provided in at least a portion of the at least one uncoated region,wherein there are a plurality of the drawn regions, the plurality of the drawn regions being provided in intermittent fashion in a long direction of the electrode sheet.

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