FR2528628A1 - Electric accumulator with reinforced terminal for handling during mfr. - uses rolled construction with electrode having shallow V=shape profile extending in direction of cell axis to permit machine handling - Google Patents
Electric accumulator with reinforced terminal for handling during mfr. - uses rolled construction with electrode having shallow V=shape profile extending in direction of cell axis to permit machine handling Download PDFInfo
- Publication number
- FR2528628A1 FR2528628A1 FR8210314A FR8210314A FR2528628A1 FR 2528628 A1 FR2528628 A1 FR 2528628A1 FR 8210314 A FR8210314 A FR 8210314A FR 8210314 A FR8210314 A FR 8210314A FR 2528628 A1 FR2528628 A1 FR 2528628A1
- Authority
- FR
- France
- Prior art keywords
- tongue
- electric accumulator
- electrode
- handling
- shallow
- 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.)
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
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- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Accumulateur électrique cylindrique
La présente invention concerne un accumulateur électrique cylindrigue, notamment du type accumulateur étanche nickel-cadmium ; elle se rapporte notamment aux connexions électriques internes d'un tel accumulateur.Cylindrical electric accumulator
The present invention relates to a cylindrical electric accumulator, in particular of the nickel-cadmium sealed accumulator type; it relates in particular to the internal electrical connections of such an accumulator.
Un accumulateur de ce genre comporte, dans un bottier, une électrode positive et une électrode négative enroulées avec interposition d'un séparateur approprié, en un bloc de forme sensiblement cylindrique. An accumulator of this kind comprises, in a case, a positive electrode and a negative electrode wound with the interposition of an appropriate separator, in a block of substantially cylindrical shape.
Deux collecteurs de courant en forme de plaquettes situées aux extrémités du bloc sont soudés d'une part aux lisières des électrodes et d'autre part à deux bornes de sortie appartenant au bottier. L'un des collecteurs de courant est généralement connecté à la face interne du couvercle du bottier par l'intermédiaire d'une languette métallique initialement parallèle aux génératrices du bloc cylindrique. Cette languette peut appartenir au collecteur de courant lui-même, comme cela apparatt dans le brevet français n0 2 097 301. Selon une autre variante, la languette est solidaire de la lisière des électrodes et forme elle même collecteur de courant. Cette solidarisation peut être obtenue très simplement par la découpe directe d'une languette dans le feuillard servant de support à la matière active de l'électrode. Two current collectors in the form of plates located at the ends of the block are welded on the one hand to the edges of the electrodes and on the other hand to two output terminals belonging to the shoemaker. One of the current collectors is generally connected to the internal face of the case cover by means of a metal tab initially parallel to the generatrices of the cylindrical block. This tongue can belong to the current collector itself, as it appears in French patent n ° 2 097 301. According to another variant, the tongue is secured to the edge of the electrodes and forms itself current collector. This joining can be obtained very simply by direct cutting of a tongue in the strip serving as a support for the active material of the electrode.
Dans tous les cas, on utilise la languette plusieurs fois au cours de la fabrication de l'accumulateur comme repère mécanique sur les machines automatiques de montage. Or il s'avère que cette languette, qui est le plus souvent une feuille d'acier nickelé de 0,1 à 0,2 mm d'épaisseur, se déforme de façon incontrôlée à la moindre sollicitation mécanique. In all cases, the tongue is used several times during the manufacture of the accumulator as a mechanical reference on automatic assembly machines. However, it turns out that this tongue, which is most often a sheet of nickel-plated steel 0.1 to 0.2 mm thick, deforms uncontrollably at the slightest mechanical stress.
La présente invention a pour but d'éviter cet inconvénient. The present invention aims to avoid this drawback.
La présente invention a pour objet un accumulateur électrique cylindrique comportant, dans un bottier, une électrode positive et une électrode négative enroulées, avec interposition d'un séparateur approprié, en un bloc de forme sensiblement cylindrique, et deux collecteurs de courant situés aux deux extrémités du bloc, soudés respectivement aux tranches des deux électrodes et reliés électriquement à deux bornes de sortie appartenant au bottier, l'un des collecteurs étant relié à la face interne du couvercle dudit boîtier par une languette métallique, parallèle aux génératrices dudit bloc cylindrique avant fermeture du boîtier, caractérisé par le fait que ladite languette présente une nervure longitudinale de raidissement. The subject of the present invention is a cylindrical electric accumulator comprising, in a case, a wound positive electrode and a negative electrode, with the interposition of an appropriate separator, in a block of substantially cylindrical shape, and two current collectors located at the two ends. of the block, welded respectively to the edges of the two electrodes and electrically connected to two output terminals belonging to the shoemaker, one of the collectors being connected to the internal face of the cover of said housing by a metal tab, parallel to the generatrices of said cylindrical block before closing of the housing, characterized in that said tongue has a longitudinal stiffening rib.
Selon un mode de réalisation particulièrement avantageux, ladite nervure est réalisée par pliure de la languette, 11 angle du dièdre formé étant de l'ordre de 72GO. According to a particularly advantageous embodiment, said rib is produced by bending the tongue, the angle of the dihedron formed being of the order of 72 GB.
D'autres caractéristiques et avantages de la présente invention apparaîtront au cours de la description suivante d'un mode de réalisation donné à titre illustratif mais nullement limitatif. Other characteristics and advantages of the present invention will appear during the following description of an embodiment given by way of illustration but in no way limitative.
La figure unique annexée le montre très schématiquement en perspective. The single attached figure shows it very schematically in perspective.
On voit une électrode positive 1 enroulée en spirale, constituée par une âme conductrice, telle qu'un feuillard d'acier nickelé recouvert d'une couche de métal fritté, et imprégnée de matière active positive sauf au niveau. de ses lisières. On n'a pas illustré l'élec- trode négative et le séparateur enroulés avec ltélectrode positive pour former un bloc cylindrique. We see a positive electrode 1 wound in a spiral, constituted by a conductive core, such as a nickel-plated steel strip covered with a layer of sintered metal, and impregnated with positive active material except at the level. of its edges. The negative electrode and the separator wound with the positive electrode have not been illustrated to form a cylindrical block.
Un collecteur de courant positif 2 en forme de plaquette est soudé d'une part sur la lisière de l'éleetrode 1 et d'autre part à la face interne du couvercle du godet qui contient le bloc cylindrique. A positive current collector 2 in the form of a plate is welded on the one hand to the edge of the electrode 1 and on the other hand to the internal face of the cover of the bucket which contains the cylindrical block.
Pour cela il comporte une languette 3, initialement parallèle aux génératrices du bloc cylindrique et présentant une pliure longitudinale 4 ; l'angle du dièdre ainsi formé est de l'ordre de 1200. Il en résulte une nervure conférant à la languette un raidissement suffisant pour supporter les sollieitations mécaniques auxquelles elle est soumise au cours des opérations successives de montage.For this it has a tongue 3, initially parallel to the generatrices of the cylindrical block and having a longitudinal fold 4; the angle of the dihedral thus formed is of the order of 1200. This results in a rib giving the tongue sufficient stiffening to withstand the mechanical stresses to which it is subjected during the successive assembly operations.
Bien entendu, comme on l'a indiqué plus haut, la languette peut venir directement d'une découpe du feuillard constituant l'âme de l'électrode 1. Of course, as indicated above, the tongue can come directly from a cutout of the strip constituting the core of the electrode 1.
L'opération réalisant la pliure de la languette peut donc être effectuée à des moments différents selon qu'elle est ou non solidaire d'un collecteur du type de celui qui est référencé 2 sur la figure. The operation performing the folding of the tongue can therefore be carried out at different times depending on whether or not it is integral with a collector of the type which is referenced 2 in the figure.
On pourra, sans sortir du cadre de l'invention, remplacer toute disposition par une disposition équivalente. Without departing from the scope of the invention, any provision may be replaced by an equivalent provision.
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8210314A FR2528628A1 (en) | 1982-06-14 | 1982-06-14 | Electric accumulator with reinforced terminal for handling during mfr. - uses rolled construction with electrode having shallow V=shape profile extending in direction of cell axis to permit machine handling |
MX197636A MX153155A (en) | 1982-06-14 | 1983-06-13 | IMPROVEMENTS IN CYLINDRICAL ELECTRIC ACCUMULATOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8210314A FR2528628A1 (en) | 1982-06-14 | 1982-06-14 | Electric accumulator with reinforced terminal for handling during mfr. - uses rolled construction with electrode having shallow V=shape profile extending in direction of cell axis to permit machine handling |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2528628A1 true FR2528628A1 (en) | 1983-12-16 |
FR2528628B1 FR2528628B1 (en) | 1984-12-21 |
Family
ID=9274964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8210314A Granted FR2528628A1 (en) | 1982-06-14 | 1982-06-14 | Electric accumulator with reinforced terminal for handling during mfr. - uses rolled construction with electrode having shallow V=shape profile extending in direction of cell axis to permit machine handling |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2528628A1 (en) |
MX (1) | MX153155A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2337137A3 (en) * | 2009-09-30 | 2013-11-27 | Samsung SDI Co., Ltd. | Rechargeable battery |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE399943C (en) * | 1924-07-31 | Hermann Anschuetz Kaempfe Dr | Drilling device and method for making vertical boreholes in shaft construction | |
GB540181A (en) * | 1940-04-09 | 1941-10-08 | Ceag Ltd | Improvements in or relating to contacts associated with electric batteries |
FR2097301A5 (en) * | 1970-07-01 | 1972-03-03 | Accumulateurs Fixes | |
FR2260191A1 (en) * | 1974-02-04 | 1975-08-29 | Varta Batterie | |
DE2614428A1 (en) * | 1976-04-03 | 1977-10-13 | Rudolf Klaschka | Metal terminal for electrolytic capacitors - has tag on terminal pin with angular cross section whose tip coincides with pin axis |
DE3019186A1 (en) * | 1980-05-20 | 1981-11-26 | Varta Batterie Ag, 3000 Hannover | Gas-tightly closed accumulator with wound electrodes - has pole tap plate with dependent tongue, bent back against plate at sharp angle and connected to cell lid |
-
1982
- 1982-06-14 FR FR8210314A patent/FR2528628A1/en active Granted
-
1983
- 1983-06-13 MX MX197636A patent/MX153155A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE399943C (en) * | 1924-07-31 | Hermann Anschuetz Kaempfe Dr | Drilling device and method for making vertical boreholes in shaft construction | |
GB540181A (en) * | 1940-04-09 | 1941-10-08 | Ceag Ltd | Improvements in or relating to contacts associated with electric batteries |
FR2097301A5 (en) * | 1970-07-01 | 1972-03-03 | Accumulateurs Fixes | |
FR2260191A1 (en) * | 1974-02-04 | 1975-08-29 | Varta Batterie | |
DE2614428A1 (en) * | 1976-04-03 | 1977-10-13 | Rudolf Klaschka | Metal terminal for electrolytic capacitors - has tag on terminal pin with angular cross section whose tip coincides with pin axis |
DE3019186A1 (en) * | 1980-05-20 | 1981-11-26 | Varta Batterie Ag, 3000 Hannover | Gas-tightly closed accumulator with wound electrodes - has pole tap plate with dependent tongue, bent back against plate at sharp angle and connected to cell lid |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2337137A3 (en) * | 2009-09-30 | 2013-11-27 | Samsung SDI Co., Ltd. | Rechargeable battery |
Also Published As
Publication number | Publication date |
---|---|
MX153155A (en) | 1986-08-12 |
FR2528628B1 (en) | 1984-12-21 |
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