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SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME

  • US 20190326647A1
  • Filed: 07/01/2019
  • Published: 10/24/2019
  • Est. Priority Date: 02/22/2017
  • Status: Active Grant
First Claim
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1. A method of manufacturing a secondary battery having an electrode winding body that includes a positive electrode and a negative electrode, and has a non-rectangular shape in a planar view thereof, the manufacturing method comprising:

  • forming an electrode precursor laminate by stacking a positive electrode precursor on a negative electrode precursor with a separator interposed therebetween; and

    winding the electrode precursor laminate to form the electrode winding body, with the winding performed about a winding axis that is substantially parallel to an extending direction of a terminal element of the secondary battery,wherein the electrode precursor laminate has a comb-teeth shape in the planar view and the electrode winding body is a non-rectangular shape in the planar view thereof.

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