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:
Nov. 18, 2003

Filed:

Jan. 27, 2000
Applicant:
Inventors:

Bernard Bugnet, Le Plessis-Trevise, FR;

Denis Doniat, Paris, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/48 ; H01M 4/62 ; H01M 4/58 ;
U.S. Cl.
CPC ...
H01M 4/48 ; H01M 4/62 ; H01M 4/58 ;
Abstract

Secondary electrochemical generators of the zinc-electrode alkaline type whose anode has a great capacity for cycling. The electrochemical generators according to the invention comprise zinc anodes made in such a manner as to increase within the active material the number of sites for formation of zinc during recharging, by a better draining of the electrical charges, obtained by using a dispersed secondary collector in the form of a conductive powder in the active mass, to which may advantageously be associated a principal support-collector of the high porous three-dimensional structured type having a high developed surface. These generators thus have zinc electrodes of improve cyclability, the number of charges and discharges that the electrode can perform under different regimes being increased.


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