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.
Patent No.:
Date of Patent:
Mar. 04, 2014
Filed:
Jan. 05, 2009
Bernard Bugnet, Le Plessis-Trevise, FR;
Denis Doniat, Paris, FR;
Fabrice Fourgeot, Fontenay-sous-Bois, FR;
Robert Rouget, Paris, FR;
Bernard Bugnet, Le Plessis-Trevise, FR;
Denis Doniat, Paris, FR;
Fabrice Fourgeot, Fontenay-sous-Bois, FR;
Robert Rouget, Paris, FR;
S.C.P.S. Societe de Conseil et de Prospective Scientifique, S.A., Rosny-sous-Bois, FR;
Abstract
Silver positive electrode for alkali secondary batteries having an enhanced cycling capability, and consequently a longer lifetime in cycling of the storage batteries incorporating it, by optimizing, in recharge mode, the conditions for electrochemically reducing the oxidized silver species. The silver electrode according to the invention is of the plasticized type, and a high-porosity collector, such as a woven fabric, a felt or a reticulated cellular metal foam, is used. The active compound introduced into the collector is prepared in paste form, in which the active material consists of metallic silver particles and/or silver monoxide particles, and may advantageously include a metal oxide acting as pore-forming and wetting agent for the electrode. Such an electrode is particularly intended for mounting in silver-zinc storage batteries operating in open mode or sealed mode.