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Enhanced very high volt electrolyte

  • US 6,773,632 B1
  • Filed: 05/17/2001
  • Issued: 08/10/2004
  • Est. Priority Date: 12/09/1999
  • Status: Expired due to Fees
First Claim
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1. A process for impregnating an electrolytic capacitor stack or wound roll with an electrolyte having a breakdown voltage of at least about 700 V, comprising:

  • (a) impregnating said stack or wound roll with a polymerization initiator;

    (b) contacting said stack or wound roll with a polymer electrolyte solution comprising a polymer matrix of a hydrogel in an organic solvent-based liquid electrolyte, said solvent-based electrolyte comprising a solution of 2.0%±

    0.5% Boric acid; and

    (c) curing said polymer.

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