FR2576149A1 - Valve for leaktight batteries - Google Patents

Valve for leaktight batteries Download PDF

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Publication number
FR2576149A1
FR2576149A1 FR8500333A FR8500333A FR2576149A1 FR 2576149 A1 FR2576149 A1 FR 2576149A1 FR 8500333 A FR8500333 A FR 8500333A FR 8500333 A FR8500333 A FR 8500333A FR 2576149 A1 FR2576149 A1 FR 2576149A1
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FR
France
Prior art keywords
valve
cover
battery
batteries
sealed battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR8500333A
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French (fr)
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR8500333A priority Critical patent/FR2576149A1/en
Publication of FR2576149A1 publication Critical patent/FR2576149A1/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • H01M50/333—Spring-loaded vent valves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

The invention relates to a valve for electric storage batteries, which is positioned on the inside of the cover or of a partition of the case. It comprises: a housing 1, forming a single body with the cover 4 for example, a retention element 2 and a shutter 3. According to the invention this system makes it possible to ensure leaktightness under a defined pressure, in a leaktight battery.

Description

La présente invention concerne un dispositif permettant d'assurer l'étanchéité d'une batterie dite étanche à l'aide d'une soupape. The present invention relates to a device for ensuring the tightness of a so-called sealed battery using a valve.

Les batteries étanches sont caractérisées, d'un point strictement physique, par le fait que le groupe électrochimique doit rester isolé de l'atmosphère, et qu'une pression peut ou doit régner dans l'enceinte du contenant, pour assurer une recombinaison des gaz formés par l'électroylyse de 1' eau pendant la charge, ou pendant l'autodécharge. Cette re-- combinaison essentiellement l'oxygène, s'effectue par oxydation des plaques négatives ( qui sont ensuite réduites pendant la charge ).Mais ces plaques négatives, très réactives ne doivent pas se trouver en présence de l'oxygène de l'air, car l'opération de réduction ne pourrait s'effectuer, d'une part à cause de la cinétique, d'autre part à cause de l'insu- ffisance deIectrolyte; Ainsi, les batteries seraient-rendues inutilisables. The sealed batteries are characterized, from a strictly physical point, by the fact that the electrochemical group must remain isolated from the atmosphere, and that a pressure can or must reign in the enclosure of the container, to ensure a recombination of the gases formed by the electrolysis of water during charging, or during self-discharge. This re-combination essentially oxygen, is carried out by oxidation of the negative plates (which are then reduced during the charge) .But these negative plates, very reactive must not be in the presence of the oxygen of the air , because the reduction operation could not be carried out, on the one hand because of the kinetics, on the other hand because of the insufficiency of the electrolyte; Thus, the batteries would be rendered unusable.

Cette pression peut varier, suivant le taux de recombinaison requis, en fonction d'une durée de vie prévue, mais aussi en fonction de la résistance mécanique du contenant bac, couvercle, joints de connexions, etc... This pressure can vary, depending on the recombination rate required, as a function of an expected lifetime, but also as a function of the mechanical strength of the container, cover, connection joints, etc.

Le moyen utilisé pour répondre à ces impératifs, doit donc permettre l'évacuation des gaz formés lors d'une surcharge intempestive par exemple, mais surtout éviter l'encrée d'air. The means used to meet these requirements must therefore allow the evacuation of gases formed during an untimely overload for example, but above all avoid the ingress of air.

La technique utilisée habituellement, est l'insertion d' une soupape dans le couvercle ( fig.8 ), constituée par un logement, une membrame souple, un opercule de maintien et/ou un couvercle général, cette soupape étant donc située sur le couvercle. The technique usually used is the insertion of a valve in the cover (fig. 8), consisting of a housing, a flexible membrane, a retaining cap and / or a general cover, this valve therefore being located on the cover .

Ce principe d'insertion apporte de nombreux inconvénients, et particulièrement, une complication importante des formes de moulage. De ce fait, il devient difficile, voire impossi- ble d'obtenir plusieurs profils rigoureusement semblables il faut 6 soupapes pour une batterie de 12 V au plomb, par exemple.)
L#'encombrement peut être également redhibitoire, dans cee tains cas et de même, le nombre d'empreinte sur la surface du couvercle peut limiter la miniaturisation des batteries.This insertion principle brings many drawbacks, and in particular, an important complication of the molding forms. As a result, it becomes difficult, even impossible, to obtain several strictly similar profiles (6 valves are needed for a 12 V lead-acid battery, for example.)
The size can also be prohibitive, in this case and in the same way, the number of imprints on the surface of the cover can limit the miniaturization of the batteries.

Le point capital, soulevé par l'évolution rapide de la technique et des besoins non prévisibles, est que la définition initiale du projet ne permet plus de changement de principe. The key point, raised by the rapid evolution of technology and unpredictable needs, is that the initial definition of the project no longer allows a change in principle.

L'objet de la présente invention est de proposer un dispositif simple, d'un encombrement réduit, fiable et économique, limitant les opérations et réduisant le matériel pour la mise en place. The object of the present invention is to provide a simple device, of a reduced size, reliable and economical, limiting operations and reducing the material for the installation.

Le logement de la soupape est situé sur la face interne du couvercle (fig.9). Dans les modèles proposés à titre d'exemples et les montages effectués, ce logement est une couronne cylindrique -(4) , formée par moulage. Lors des premiers essais, elle était rapportée par collage. Cette forme cylindrique est la plus simple, mais toute autre forme peut-être envisagée, en fonction de paramètres définis lors de la conception de la batterie. The valve housing is located on the inside of the cover (fig. 9). In the models proposed by way of examples and the assemblies carried out, this housing is a cylindrical crown - (4), formed by molding. During the first tests, it was reported by gluing. This cylindrical shape is the simplest, but any other shape can be considered, depending on parameters defined during the design of the battery.

La soupape en elle-même peut se composer de deux éléments ou plus, à titre d'exemples, ces deux éléments de base peuvent être :
- un clapet formé d'une pièce souple en caoutchouc naturel ou synthétique, ou un mélange possédant les qualités requises (3). Nous pouvons utiliser, également, un opercule formé d'une bille ou une-couronne, maintenue par un ressort, par exemple
- unélément de maintien, en matière moulée, dans les exemples présentés (2). Cet élément maintient le clapet en place, tout en permettant l'évacuation des gaz internes.The valve itself can consist of two or more elements, for example, these two basic elements can be:
- a valve formed of a flexible piece of natural or synthetic rubber, or a mixture having the required qualities (3). We can also use a cover formed by a ball or a crown, held by a spring, for example
- a holding element, in molded material, in the examples presented (2). This element keeps the valve in place, while allowing the evacuation of internal gases.

Ces éléments peuvent avoir des formes variables. Le but du montage étant de permettre la sortie des gaz formés, à une pression choisie, cette pression étant elle-même définie par les formes, dimensions, choix judicieux de la matière composant le clapet, ainsi que la dureté. These elements can have variable forms. The purpose of the assembly being to allow the exit of the gases formed, at a selected pressure, this pressure being itself defined by the shapes, dimensions, judicious choice of the material making up the valve, as well as the hardness.

En exemples, une série non limitative de modèles accompa
gne le texte, pour l'éclairer. D'autres principes peuvent être utilisés, par exemple billes et ressorts, clapets rigides à masselotte, etc
Selon de réalisations préférentielles, des montages suivants les figures 1,2,3 et 5 ont été réalisés, suivant llen- combrement libre utilisable (volume, hauteur), l'un ou l'au- tre peut être choisi.In examples, a nonlimiting series of models accompa
embeds the text, to lighten it. Other principles can be used, for example balls and springs, rigid counterweight valves, etc.
According to preferred embodiments, arrangements according to FIGS. 1, 2, 3 and 5 have been produced, according to the free space usable (volume, height), one or the other can be chosen.

Le système de la figure 2, par exemple, limite les projections d'acide sur l'opercule en caoutchouc, dans certains cas de batteries contenant un léger excès d'électrolyte : ce modèle permet dans le cas de batteries fonctionnant tête en bas, de supprimer les crachotements d'électrolyte, dus au dé pôt de l'électrolyte suintant du groupe électrochimique
Divers essais effectués avec des clapets composés de dis gues ou de calottes souples, de dureté variable ont donné toute satisfaction.The system in Figure 2, for example, limits acid splashes on the rubber seal, in some cases of batteries containing a slight excess of electrolyte: this model allows in the case of batteries operating upside down, to suppress the spitting of electrolyte, due to the deposit of the electrolyte seeping from the electrochemical group
Various tests carried out with valves composed of dis gues or flexible caps, of varying hardness have given complete satisfaction.

Les nombreux avantages proposés par ce type d'inclusion sont entre autres
- un couvercle de batterie de forme simplifiée
- des soupapes identiques, l'élément de maintien étant simplifié
--une mise en place facile par collage, soudage ou toute autre méthode, la technique utilisée n'ayant aucune incidence négative sur la finition.The many advantages offered by this type of inclusion are among others
- a simplified battery cover
- identical valves, the holding element being simplified
- easy installation by gluing, welding or any other method, the technique used having no negative impact on the finish.

- une disjonction du couvercle et de sa soupape. - a disconnection of the cover and its valve.

- un encombrement réduit. - reduced dimensions.

- un coût réduit. - reduced cost.

- l'interchangeabilité totale entre les soupapes de même type, mais aussi et surtout, de divers types de soupape. - total interchangeability between valves of the same type, but also and above all, of various types of valve.

- un excellent aspect du couvercle, une finition soignée. - an excellent appearance of the cover, a neat finish.

Cette soupape est entre autres destinée à assurer l'étan- chéité de batteries au plomb  This valve is inter alia intended to ensure the sealing of lead-acid batteries

Claims (8)

est place contre le couvercle, sue la face intérieure de ce dernier. is placed against the cover, on the inside of the latter. l)Sou:#ape pour batterie étanche, caractérisée par le fait qu'elle l) Sou: #ape for waterproof battery, characterized in that it REVENDICATIONS 2) Soupape pour batterie étanche, selon la revendication 1, caractérisée par le fait que le couvercle maintient le clapet en place. 2) Valve for sealed battery, according to claim 1, characterized in that the cover holds the valve in place. 3)Soupape pour batterie êtanc#e,selon les revendications 1 et 2, caractérisée par le fait que le logement peut autre moulé avec le couvercle. 3) Valve for battery étanc # e, according to claims 1 and 2, characterized in that the housing can other molded with the cover. 4)Soupape pour batterie étanche,selon les revendications 1 à 3, 4) Valve for sealed battery, according to claims 1 to 3, caractérisée par le f#ait que l'élément de maintien peut autre fixé par collage ou soudage. characterized by the f # has that the holding element can other fixed by gluing or welding. 5)Soupape pour batterie étanche, selon les revendications 1 et 2, 5) Valve for sealed battery, according to claims 1 and 2, caractérisée par le fait que le clapet est composé d'une matière souple, characterized by the fact that the valve is made of a flexible material, 6)Soupape pour batterie étanche, selon les revendications 1 et 2, caractérisée par le fait que le clapet est constitué par un ensemble 6) Valve for sealed battery, according to claims 1 and 2, characterized in that the valve consists of an assembly d'éléments remplaçant la matière souple. of elements replacing the flexible material. 7)Soupape pour batterie étanche, selon une des revendications 2 à 6, 7) Valve for sealed battery, according to one of claims 2 to 6, caractérisée par le fait qu'elle peut être placée à l'intérieur de la batterie,contre l'une des parois du#bac.  characterized by the fact that it can be placed inside the battery, against one of the walls of the # tray. 8)Soupape pour batterie étanche, selon la revendication 7,caractérisée par le fait que la paroi du bac maintient le clapet en place.  8) Valve for sealed battery, according to claim 7, characterized in that the wall of the tank keeps the valve in place.
FR8500333A 1985-01-11 1985-01-11 Valve for leaktight batteries Pending FR2576149A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8500333A FR2576149A1 (en) 1985-01-11 1985-01-11 Valve for leaktight batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8500333A FR2576149A1 (en) 1985-01-11 1985-01-11 Valve for leaktight batteries

Publications (1)

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FR2576149A1 true FR2576149A1 (en) 1986-07-18

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0756338A1 (en) * 1995-07-27 1997-01-29 HAGEN Batterie AG Plug assembly for closing individual openings of the cells of an accumulator
EP1717884A1 (en) 2005-04-26 2006-11-02 Deutsche Exide GmbH Vent plug for lead acid battery
CN107534101A (en) * 2015-06-12 2018-01-02 株式会社东芝 battery and battery pack
DE102021123420A1 (en) 2020-09-11 2022-03-17 Illinois Tool Works Inc. emergency degassing valve
DE102023106792A1 (en) 2022-04-11 2023-10-12 Illinois Tool Works Inc. Emergency degassing valve device

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE36794C (en) * A. FRIEDLAENDER in Berlin W., Französischestr. 51 Locking device for galvanic elements
FR932940A (en) * 1945-09-11 1948-04-06 Chloride Electrical Storage Co Reversible electric accumulator
FR1533500A (en) * 1966-06-30 1968-07-19 Matsushita Electric Ind Co Ltd Electric accumulator
FR1566018A (en) * 1967-05-22 1969-05-02 Electromite Corp
US3537902A (en) * 1964-10-29 1970-11-03 Yuasa Batttery Co Ltd Semi-sealed type storage battery
US3556863A (en) * 1968-08-07 1971-01-19 Marathon Mfg Co Normally sealed encased rechargeable cells with self-resealing excess pressure gas vent
US3715239A (en) * 1971-04-05 1973-02-06 Gates Rubber Co Electrochemical cell closure and method of making
FR2265179A1 (en) * 1974-03-21 1975-10-17 Accumulateurs Fixes
FR2276704A1 (en) * 1974-06-27 1976-01-23 Accumulateurs Fixes Electric battery - modules with conductive and liquid proof separators between positive and negative materials
FR2290048A1 (en) * 1974-10-31 1976-05-28 Chloride Group Ltd Sealed lead cell for a storage battery - with separators between positive and negative electrode strips of specified porosity and thickness and self supporting (BE300476)
US4444853A (en) * 1983-07-01 1984-04-24 Globe-Union Inc. Storage battery construction

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE36794C (en) * A. FRIEDLAENDER in Berlin W., Französischestr. 51 Locking device for galvanic elements
FR932940A (en) * 1945-09-11 1948-04-06 Chloride Electrical Storage Co Reversible electric accumulator
US3537902A (en) * 1964-10-29 1970-11-03 Yuasa Batttery Co Ltd Semi-sealed type storage battery
FR1533500A (en) * 1966-06-30 1968-07-19 Matsushita Electric Ind Co Ltd Electric accumulator
FR1566018A (en) * 1967-05-22 1969-05-02 Electromite Corp
US3556863A (en) * 1968-08-07 1971-01-19 Marathon Mfg Co Normally sealed encased rechargeable cells with self-resealing excess pressure gas vent
US3715239A (en) * 1971-04-05 1973-02-06 Gates Rubber Co Electrochemical cell closure and method of making
FR2265179A1 (en) * 1974-03-21 1975-10-17 Accumulateurs Fixes
FR2276704A1 (en) * 1974-06-27 1976-01-23 Accumulateurs Fixes Electric battery - modules with conductive and liquid proof separators between positive and negative materials
FR2290048A1 (en) * 1974-10-31 1976-05-28 Chloride Group Ltd Sealed lead cell for a storage battery - with separators between positive and negative electrode strips of specified porosity and thickness and self supporting (BE300476)
US4444853A (en) * 1983-07-01 1984-04-24 Globe-Union Inc. Storage battery construction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0756338A1 (en) * 1995-07-27 1997-01-29 HAGEN Batterie AG Plug assembly for closing individual openings of the cells of an accumulator
EP1717884A1 (en) 2005-04-26 2006-11-02 Deutsche Exide GmbH Vent plug for lead acid battery
US7951475B2 (en) 2005-04-26 2011-05-31 Deutsche Exide Gmbh Vent valve for acid batteries
CN107534101A (en) * 2015-06-12 2018-01-02 株式会社东芝 battery and battery pack
CN107534101B (en) * 2015-06-12 2020-09-04 株式会社东芝 Battery and assembled battery
DE102021123420A1 (en) 2020-09-11 2022-03-17 Illinois Tool Works Inc. emergency degassing valve
DE102023106792A1 (en) 2022-04-11 2023-10-12 Illinois Tool Works Inc. Emergency degassing valve device

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