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SEPARATOR FOR LEAD ACID STORAGE BATTERY

  • US 20200136117A1
  • Filed: 04/27/2018
  • Published: 04/30/2020
  • Est. Priority Date: 04/28/2017
  • Status: Active Grant
First Claim
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1. :

  • A separator for a lead acid storage battery, comprising;

    a microporous film having a thickness of from 0.1 to 0.3 mm as a base portion;

    plural main ribs that are provided on one surface of the base portion; and

    plural miniature ribs that have a lower height than a height of the main ribs and are provided on the other surface of the base portion,the plural miniature ribs being provided in a linear form with an inter-rib distance, which is a distance between facing surfaces of the adjacent miniature ribs, of less than 1.9 mm.

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