Patent · US Active

Multi-layer article comprising polyimide nanoweb

US8557444B2 · kind B2 · utility

9Cited by

3References

11Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Pankaj Arora · Sammamish, US
Stephane Francois Bazzana · Wilmington, US
T. Joseph Dennes · Parkesburg, US
Eric P. Holowka · Philadelphia, US
Lakshmi Krishnamurthy · Wilmington, US
Stephen Mazur · Wilmington, US
Glen E. Simmonds · Avondale, US

Key dates

Filing date	Oct 7, 2010
Grant date	Oct 15, 2013
Priority date	—
Expiry date	Sep 11, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

This invention provides a multi-layer article comprising a first electrode material, a second electrode material, and a porous separator disposed between and in contact with the first and the second electrode materials, wherein the porous separator comprises a nanoweb consisting essentially of a plurality of nanofibers of a fully aromatic polyimide. Also provided is a method for preparing the multi-layer article, and an electrochemical cell employing the same. A multi-layer article comprising a polyimide nanoweb with enhanced properties is also provided.

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