Patent · US Expired

Carbon electrode for use in aqueous electrochemical devices and method of preparation

US7175783B2 · kind B2 · utility

33Cited by
9References
6Claims
0Family size

Inventor

Key dates

Filing dateAug 18, 2004
Grant dateFeb 13, 2007
Priority date
Expiry dateAug 17, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/249921
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A high tensile strength, highly conductive flexible composite sheet consisting of fibrillated PTFE polymers, performance enhancing dopants, and carbon particles useful in electrochemical devices such as flow through capacitors, capacitive deionization, electronic water purification, fuel cells, capacitors, super-capacitors and a method of preparation. The method consists of mixing the materials and calendering to the desired thickness and strength all at room temperature and leaving the material in a wet state without further drying.

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