Patent · US Expired

Electric double layer capacitor

US6466429B1 · kind B1 · utility

72Cited by
2References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 3, 2001
Grant dateOct 15, 2002
Priority date
Expiry dateMay 3, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/13
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

The present invention is directed to a novel capacitor. The capacitor may be used in electric double layer capacitors. The capacitors include a polarizable electrode including activated carbon and a non-polarizable electrode including lead dioxide and lead sulfate. The capacitors of the present invention provide considerably higher electric capacity, higher durability, and low resistance, while maintaining high conductivity. Additionally, the electrodes may be produced more quickly and inexpensively.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.