The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 05, 2010

Filed:

May. 26, 2005
Applicants:

Damien Djian, Fontenay, FR;

Sebastien Martinet, Grenoble, FR;

Helene Lignier, Saint Laurent du Pont, FR;

Jean-yves Sanchez, Saint Ismier, FR;

Inventors:

Damien Djian, Fontenay, FR;

Sebastien Martinet, Grenoble, FR;

Helene Lignier, Saint Laurent du Pont, FR;

Jean-Yves Sanchez, Saint Ismier, FR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2006.01); H01M 2/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A separator for a battery in lithium. The separator is a thick membrane, of around 60 to 120 μm in polyvinylidene fluoride copolymer, which has considerable porosity, of around 50 to 90%, with pores of size between 1 and 10 μm. With these characteristics, it is possible to optimize the operation of a battery with an electrode in, e.g., LiTiO, in particular for rapid charges and discharges, in other words in power applications.


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