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Method for making an electrical energy storage device

  • US 5,370,711 A
  • Filed: 08/11/1993
  • Issued: 12/06/1994
  • Est. Priority Date: 07/21/1993
  • Status: Expired due to Term
First Claim
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1. A method for making an electric energy storage device comprising the steps of:

  • forming a winding by winding on a rotating arbor multiple layers including a cathode plate, an anode plate, and a separator between the cathode and anode plates, the diameter of the winding increasing from an initial diameter to a completed diameter;

    supporting the winding during the step of winding using a series of rollers arranged about the rotating arbor and being movable away from the arbor during the winding step, only a portion of the series of rollers contacting the winding when the winding is of the initial diameter, and additional rollers contacting the winding when the winding reaches a diameter between the initial and completed diameters.

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