Claims
- 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.
- 2. A process according to claim 1, wherein said polymer matrix is a poly(hydroxyalkylmethacrylate) based polymer matrix.
- 3. A process according to claim 2, wherein said polymer matrix comprises hydroxyethylmethacrylate.
- 4. A process according to claim 1, wherein said polymer matrix is a polyvinylalcohol based polymer matrix.
- 5. A process according to claim 1, wherein said polymer matrix is a polyacrylonitrile based polymer matrix.
- 6. A process according to claim 1, wherein said solvent-based electrolyte comprises boric acid and phosphoric acid in an ethylene glycol solvent base.
- 7. A process according to claim 1, wherein said solvent-based electrolyte comprises an ethylene glycol solution of 2.0%±0.5% Boric acid, 5.0%±2% water, and 50 ppm phosphoric acid.
- 8. 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 solution comprising a polymerization initiator and 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 (b) curing said polymer.
- 9. A process according to claim 8, wherein said polymer matrix is a poly(hydroxyalkylmethacrylate) based polymer matrix.
- 10. A process according to claim 9, wherein said polymer matrix comprises hydroxyethylmethacrylate.
- 11. A process according to claim 8, wherein said polymer matrix is a polyvinyl alcohol based polymer matrix.
- 12. A process according to claim 8, wherein said polymer matrix is a polyacrylonitrile based polymer matrix.
- 13. A process according to claim 8, wherein said solvent-based electrolyte comprises boric acid and phosphoric acid in an ethylene glycol solvent base.
- 14. A process according to claim 8, wherein said solvent-based electrolyte comprises an ethylene glycol solution of 2.0%±0.5% Boric acid, 5.0%±2% water, and 50 ppm phosphoric acid.
- 15. A process according to claim 1, wherein said solvent-based electrolyte comprises an ethylene glycol solution containing 4% to 9% dimer acid, 2.0%±0.5% Boric acid, and about 1.0% degassing agent.
- 16. A process according to claim 8, wherein said solvent-based electrolyte comprises an ethylene glycol solution containing 4% to 9% dimer acid, 2.0%±0.5% Boric acid, and about 1.0% degassing agent.
- 17. 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 between about 4% and 9% dimer acid; and (c) curing said polymer.
- 18. 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 about 1.0% degassing agent; and (c) curing said polymer.
- 19. 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 up to 5.0% of a 20% solution of colloidal silica in ethylene glycol; and (c) curing said polymer.
- 20. 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 up to 20% by weight of a co-solvent of butyl carbitol; and (c) curing said polymer.
- 21. 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 solution comprising a polymerization initiator and a polymer matrix of a hydrogel in an organic solvent-based liquid electrolyte, said solvent-based electrolyte comprising a solution of between about 4% and 9% dimer acid; and (b) curing said polymer.
- 22. 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 solution comprising a polymerization initiator and a polymer matrix of a hydrogel in an organic solvent-based liquid electrolyte, said solvent-based electrolyte comprising a solution of about 1.0% degassing agent; and (b) curing said polymer.
- 23. 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 solution comprising a polymerization initiator and a polymer matrix of a hydrogel in an organic solvent-based liquid electrolyte, said solvent-based electrolyte comprising up to 5.0% of a 20% solution of colloidal silica in ethylene glycol; and (b) curing said polymer.
- 24. 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 solution comprising a polymerization initiator and a polymer matrix of a hydrogel in an organic solvent-based liquid electrolyte, said solvent-based electrolyte comprising up to 20% by weight of a co-solvent of butyl carbitol; and (b) curing said polymer.
Parent Case Info
This is a divisional of copending application Ser. No. 09/458,549, filed on Dec. 9, 1999.
US Referenced Citations (18)