H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 10/34 (2006.01) H01M 4/24 (2006.01) H01M 4/86 (2006.01) H01M 4/88 (2006.01) H01M 4/92 (2006.01) H01M 10/42 (2006.01)
Patent
CA 2596681
The invention concerns a device for catalytic recombination of gases for alkaline batteries with shortened zinc anode. The invention concerns a device for catalytic recombination of gases formed when charging a zinc anode alkaline battery, characterized in that it consists of a catalytic mass in contact with a crosslinked cellular metal foam serving as catalyst support and heat dissipating structure, said catalytic mass consisting of a mixture of carbon black including metal of platinum metals, and of a hydrophobic binder, the whole assembly being heat-treated to cause the hydrophobic binder of said catalytic mass to be sintered. Said device is advantageously connected to one of the terminals of the battery or to any other metal part constituting part of the cover of the battery case, so as to promote discharge of the calories produced. Such a device enables, in a long lasting manner during the charge-discharge cycles, limited internal pressure levels to be maintained, in particular in installations designed to operate without maintenance.
Dispositif de recombinaison catalytique des gaz pour accumulateurs alcalins à anode de zinc. L'invention concerne un dispositif de recombinaison catalytique des gaz formés lors de la charge d'un accumulateur alcalin à anode de zinc, caractérisé en ce qu'il est composé d'une masse catalytique disposée au contact d'une mousse métallique alvéolaire réticulée assurant le rôle de support de catalyseur et de structure de dissipation thermique, ladite masse catalytique étant constituée d'un mélange de noir de carbone comprenant un métal de la mine du platine, et d'un liant hydrophobe, l'ensemble étant soumis à un traitement thermique pour assurer le frittage du liant hydrophobe de ladite masse catalytique. Ce dispositif est avantageusement relié à l'une des bornes de l'accumulateur ou à toute pièce métallique constitutive d'une partie du couvercle du boîtier d'accumulateur, afin de favoriser l'évacuation des calories produites. Un tel dispositif permet, de manière durable au cours des cycles de charge-décharge, de conserver des niveaux de pression internes limités, en particulier dans des montages destinés à fonctionner sans entretien.
Bugnet Bernard
Doniat Denis
Rouget Robert
Bugnet Bernard
Doniat Denis
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Rouget Robert
S.c.p.s. Societe de Conseil Et de Prospective Scientifique S.a.
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