Saft

Saft, Sa

Saft Groupe Sa

Lionel Goubault

Patrick Bernard

Thierry Hezeque

Nicolas Leroy

Rémi Najean

A positive electrode of an accumulator with an alkaline electrolyte comprising a nickel-based hydroxide and a lithiated oxide of formula LiMOwherein A method for making a lithiated oxide of at least one transition metal comprising the steps of:

Lithiated oxide for a positive electrode of an alkaline accumulator

An electrode including a conductive metal support and a paste including an electrochemically-active material and a binder. The binder includes a compound of silane type, and a polymer having at least one acrylic monomer, and representing at least approximately 0.15% of the weight of said paste. The use of this binder improves the calendar or cycle life of the battery at a temperature greater than or equal to 25&#xb0; C., preferably at a temperature greater than or equal to 40&#xb0; C.

Plasticized electrode for an alkaline battery

A non-sintered electrode containing a two-dimensional conductive support covered in a layer containing an electrochemically active material and a binder which is a mixture of a styrene-acrylate copolymer and a cellulose compound chosen from methylcellulose, carboxymethylcellulose, hydroxypropylmethylcellulose, hydroxypropylcellulose and hydroxyethylcellulose. The proportion of the styrene-acrylate copolymer is less than 4% by weight of the active layer.

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Carignan de Bordeaux, France

Lionel Goubault