AT404649B - Grid plate for lead-acid accumulators - Google Patents

Grid plate for lead-acid accumulators Download PDF

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Publication number
AT404649B
AT404649B AT0030796A AT30796A AT404649B AT 404649 B AT404649 B AT 404649B AT 0030796 A AT0030796 A AT 0030796A AT 30796 A AT30796 A AT 30796A AT 404649 B AT404649 B AT 404649B
Authority
AT
Austria
Prior art keywords
grid
attachment part
lower corner
performance
area
Prior art date
Application number
AT0030796A
Other languages
German (de)
Other versions
ATA30796A (en
Original Assignee
Banner Gmbh
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 Banner Gmbh filed Critical Banner Gmbh
Priority to AT0030796A priority Critical patent/AT404649B/en
Priority to DE19810225A priority patent/DE19810225A1/en
Publication of ATA30796A publication Critical patent/ATA30796A/en
Application granted granted Critical
Publication of AT404649B publication Critical patent/AT404649B/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/64Carriers or collectors
    • H01M4/70Carriers or collectors characterised by shape or form
    • H01M4/72Grids
    • H01M4/73Grids for lead-acid accumulators, e.g. frame plates
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

A grid plate 1 for lead-acid accumulators comprises an essentially rectangular grid part 2 and an attachment part 3, for electrical connection, which is integrally formed in the upper edge region of the grid part 2. In order to allow mass and material to be saved without any adverse effect on performance, the grid part 2 is chamfered in the region of the lower corner 4 which is further away from the attachment part 3 and, possibly, also in the region of the lower corner 5 which is closer to the attachment part 3.

Claims (1)

AT 404 649 B Die Erfindung bezieht sich auf eine Gitterplatte für Bleiakkumulatoren mit einem im wesentlichen rechteckigen Gitterteil und einem im Oberkantenbereich des Gitterteils angeformten Ansatzteil zum Strom-anschluß. Diese Gitterplatten bestehen aus Bleilegierungen und werden nach verschiedenen Verfahren, meist im Gußverfahren hergestellt. In jüngster Zeit wurde auch schon vorgeschlagen, Gitterplatten aus der Rechteckform der Gitterplatten entsprechend abgelängten Streckmetallstreifen einzusetzen, wodurch die Herstellung rationalisiert werden kann und sich auch eine gewisse Materialeinsparung erreichen läßt. Der Erfindung liegt nun die Aufgab zugrunde, eine Gitterplatte der eingangs geschilderten Art zu schaffen, die ohne Leistungsverlust und unabhängig vom Herstellungsverfahren bei nur geringem herstellungsbedingtem Mehraufwand eine weitere Herabsetzung des Masseund Materialbedarfs mit sich bringt. Die Erfindung löst diese Aufgabe dadurch, daß der Gitterteil im Bereich der gegenüber dem Ansatzteil entfernteren unteren Ecke und gegebenenfalls auch im Bereich der gegenüber dem Ansatzteil näheren unteren Ecke abgeschrägt ist. Die Erfindung geht von der Erkenntnis aus, daß die in grober Annäherung als konzentrische Kreisbögen um den Ansatzteil verlaufenden Potentiallinien im Gitterteilbereich als Maß für die Leistung dienen und mit zunehmender Entfernung vom Ansatzteil immer weniger zur Leistung beitragen. Der vom Ansatzteil entferntere untere Eckbereich des Gitterteils spielt daher für die Leistungsverbesserung keine Rolle, womit auf ihn hinsichtlich der Leistung ohne nachteilige Folgen verzichtet werden kann, was durch zahlreiche Versuche auch bestätigt werden konnte. Durch den Verzicht auf den Eckbereich läßt sich aber eine bedeutende Material- und Masseneinsparung erzielen, die deshalb besonders wertvoll wird, weil das eingesparte Material direkt und verlustlos wiederverwertbar ist. Je nach Position des Ansatzteiles entlang der Gitteroberkante gilt gleiches für den dem Ansatzteil näherliegenden unteren Eckbereich, so daß üblicherweise bei einer etwas außermittigen Position des Ansatzteiles beide Eckbereiche fehlen können. Lediglich bei einer Position des Ansatzteiles in einem Endbereich der Oberkante wird auf den darunterliegenden Eckbereich ohne Leistungseinbußen nicht verzichtet werden können, sondern nur auf den diametral gegenüberliegenden unteren Eckbereich. Da beispielsweise bei der Ausbildung der Gitterplätte als Streckmetallstück das Streckmetallband abgelängt werden muß, kann gleichzeitig mit dem Ablängschnitt auch der Schnitt für das Abschrägen der Eckbereiche erfolgen, womit ein Mehraufwand für die Gitterplattenherstellung praktisch vermieden ist. In der Zeichnung ist eine erfindungsgemäße Gitterplatte beispielsweise an Hand einer schematischen Ansicht näher veranschaulicht. Eine Gitterplatte 1 für Bleiakkumulatoren besteht aus einem im wesentlichen rechteckigen Gitterteil 2 und einem im Oberkantenbereich des Gitterteils 2 angeformten Ansatzteil 3 zum Stromanschluß. Um ohne Leistungsverlust eine Material- und Masseeinsparung zu erreichen, ist der Gitterteil 2, wie durch die angedeuteten Potentiallinien P vorgegeben, im Bereich der gegenüber dem Ansatzteil 3 entfernteren unteren Ecke 4 und im Bereich der gegenüber dem Ansatzteil 3 näheren unteren Ecke 5 abgeschrägt. Patentansprüche 1. Gitterplatte für Bleiakkumulatoren mit einem im wesentlichen rechteckigen Gitterteil und einem im Oberkantenbereich des Gitterteils angeformten Ansatzteil zum Stromanschluß, dadurch gekennzeichnet, daß der Gitterteil (2) im Bereich der gegenüber dem Ansatzteil (3) entfernteren unteren Ecke (4) und gegebenenfalls auch im Bereich der gegenüber dem Ansatzteil (3) näheren unteren Ecke (5) abgeschrägt ist. Hiezu 1 Blatt Zeichnungen 2AT 404 649 B The invention relates to a grid plate for lead accumulators with an essentially rectangular grid part and an attachment part for power connection formed in the upper edge region of the grid part. These grid plates consist of lead alloys and are manufactured using various processes, mostly using the casting process. Recently, it has also been proposed to use grid plates made from the rectangular shape of the grid plates and correspondingly cut expanded metal strips, as a result of which the production can be rationalized and a certain material saving can also be achieved. The invention is based on the object of creating a grid plate of the type described which, without loss of performance and irrespective of the manufacturing process with only a small additional expenditure due to the manufacturing process, entails a further reduction in the mass and material requirements. The invention solves this problem in that the grating part is chamfered in the area of the lower corner, which is more distant from the attachment part, and possibly also in the area of the lower corner, which is closer to the attachment part. The invention is based on the knowledge that the roughly approximate concentric arcs around the attachment portion in the grid portion serve as a measure of the performance and contribute less and less to the performance with increasing distance from the attachment portion. The lower corner area of the lattice part, which is more distant from the attachment part, is therefore irrelevant for the improvement in performance, so that it can be dispensed with in terms of performance without disadvantageous consequences, which could also be confirmed by numerous tests. By doing without the corner area, significant material and mass savings can be achieved, which is particularly valuable because the material saved can be recycled directly and without loss. Depending on the position of the attachment part along the top edge of the grid, the same applies to the lower corner area closer to the attachment part, so that usually both corner areas may be missing when the attachment part is somewhat eccentric. Only in the case of a position of the attachment part in an end region of the upper edge will it not be possible to do without the corner region underneath without sacrificing performance, but only the diametrically opposite lower corner region. For example, since the expanded metal strip must be cut to length when the lattice plate is designed as an expanded metal piece, the cut for chamfering the corner areas can also be carried out at the same time as the cut to length, thus practically avoiding additional expense for the production of the lattice plate. In the drawing, a grid plate according to the invention is illustrated in more detail, for example, using a schematic view. A grid plate 1 for lead accumulators consists of a substantially rectangular grid part 2 and an attachment part 3 formed in the upper edge region of the grid part 2 for the power connection. In order to achieve material and mass savings without loss of performance, the grating part 2, as specified by the indicated potential lines P, is chamfered in the area of the lower corner 4, which is more distant from the attachment part 3, and in the area of the lower corner 5, which is closer to the attachment part 3. 1. Lattice plate for lead-acid batteries with a substantially rectangular lattice part and a molded part in the upper edge region of the lattice part for power connection, characterized in that the lattice part (2) in the region of the lower corner (4) which is more distant from the attachment part (3) and optionally also is chamfered in the area of the lower corner (5) closer to the attachment part (3). Including 1 sheet of drawings 2
AT0030796A 1996-02-20 1996-02-20 Grid plate for lead-acid accumulators AT404649B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT0030796A AT404649B (en) 1996-02-20 1996-02-20 Grid plate for lead-acid accumulators
DE19810225A DE19810225A1 (en) 1996-02-20 1998-03-10 Grid plate for lead accumulators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0030796A AT404649B (en) 1996-02-20 1996-02-20 Grid plate for lead-acid accumulators
DE19810225A DE19810225A1 (en) 1996-02-20 1998-03-10 Grid plate for lead accumulators

Publications (2)

Publication Number Publication Date
ATA30796A ATA30796A (en) 1998-05-15
AT404649B true AT404649B (en) 1999-01-25

Family

ID=25592271

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0030796A AT404649B (en) 1996-02-20 1996-02-20 Grid plate for lead-acid accumulators

Country Status (2)

Country Link
AT (1) AT404649B (en)
DE (1) DE19810225A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013111108A1 (en) * 2013-10-08 2015-04-09 Johnson Controls Autobatterie Gmbh & Co. Kgaa Grid arrangement for a plate-shaped battery electrode of an electrochemical accumulator and accumulator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189322912A (en) * 1893-11-29 1894-04-21 Edward Henry Wheeler Improvements in Electrodes and Cells for Secondary Batteries or Accumulators.
US4477546A (en) * 1983-02-03 1984-10-16 Eagle-Picher Industries, Inc. Lattice for a battery electrode substrate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189322912A (en) * 1893-11-29 1894-04-21 Edward Henry Wheeler Improvements in Electrodes and Cells for Secondary Batteries or Accumulators.
US4477546A (en) * 1983-02-03 1984-10-16 Eagle-Picher Industries, Inc. Lattice for a battery electrode substrate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013111108A1 (en) * 2013-10-08 2015-04-09 Johnson Controls Autobatterie Gmbh & Co. Kgaa Grid arrangement for a plate-shaped battery electrode of an electrochemical accumulator and accumulator
DE102013111108B4 (en) 2013-10-08 2023-05-04 Clarios Germany Gmbh & Co. Kg Grid arrangement for a plate-shaped battery electrode of an electrochemical accumulator and accumulator

Also Published As

Publication number Publication date
ATA30796A (en) 1998-05-15
DE19810225A1 (en) 1999-09-16

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Effective date: 20160220