GB2084390A - A gas and liquid tight pole packing - Google Patents
A gas and liquid tight pole packing Download PDFInfo
- Publication number
- GB2084390A GB2084390A GB8128036A GB8128036A GB2084390A GB 2084390 A GB2084390 A GB 2084390A GB 8128036 A GB8128036 A GB 8128036A GB 8128036 A GB8128036 A GB 8128036A GB 2084390 A GB2084390 A GB 2084390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole
- cup
- plastics
- packing
- acid
- 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.)
- Granted
Links
- 238000012856 packing Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 title claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 26
- 229920003023 plastic Polymers 0.000 claims abstract description 26
- 238000005266 casting Methods 0.000 claims abstract description 24
- 239000002253 acid Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 15
- -1 polyethylene Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims abstract description 7
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000004831 Hot glue Substances 0.000 abstract description 9
- 239000004698 Polyethylene Substances 0.000 abstract description 4
- 239000004743 Polypropylene Substances 0.000 abstract description 4
- 229920000573 polyethylene Polymers 0.000 abstract description 4
- 229920001155 polypropylene Polymers 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Sealing Material Composition (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
A gas and liquid tight pole packing for accumulators or storage batteries has a body of plastics material, in particular of polyethylene or polypropylene, especially for lead accumulators. In order to provide a permanent, gas and liquid tight pole packing under all kinds of varying operational conditions there is provided a cup-shaped structure of the plastics top (2) near the through- opening (3) for the pole (1), a lower layer (5) of a hard casting composition, preferably of an acid- resistant bicomponent resin, on the bottom (4) of the cup, an intermediate layer (6) consisting of a thermoplastic, permanently elastic, acid-resistant plastics, preferably of a hot-melt adhesive, and an upper layer (7) consisting of hard casting composition, preferably of an acid resistant bicomponent resin, on top of the intermediate layer (6). <IMAGE>
Description
SPECIFICATION
A gas and liquid tight pole packing
The present invention relates to a gas and liquid tight pole packing for accumulators or storage batteries and to a method of making such a pole packing.
It has been known to make such pole packings of the type having a body consisting of plastics material in particular of polyethylene or polypropylene, especially for lead accumulators, by using a permanently elastic hot-melt adhesive.
However, such a packing is not pressure-resistant so that after a time the pole will become disoriented so that the packing also will no longer be operative. Furthermore, a hot-melt adhesive of the specified type will "creep" into every crack and crevice in the course of time.
It has further been known to make a pole packing by means of a hard casting composition.
However, such a packing cannot cope with the continuously varying operational conditions, in particular temperature differences, shock loads and humidity differences. Rather, it will become disengaged from the pole and/or from the housing top in the course of time and will thus result in a leakage.
The present invention makes it possible to eliminate or minimize the drawbacks inherent in the prior art and to provide a permanent pole packing which is gas and liquid tight under varying operational conditions.
In accordance with the invention the plastics top is cup-shaped in the region of the throughopening for the pole. The bottom of the cup is successively provided with a lower layer of hard casting material, preferably of an acid-resistant bicomponent resin, an intermediate layer of a thermoplastic, permanently elastic, acid-resistant plastics, preferably of a hot-melt adhesive, such as ethylene acrylo-polymers, or, respectively other products of this species, or polyamide, or of bitumen, wax, resin, grease, and a further, upper layer of hard casting material preferably of an acid-resistant bicomponent resin. In this manner a highly stable packing is formed.An annular groove may be formed about the pole in the region of the upper layer whereby the upper layer will be anchored to the pole such that it cannot be moved relative to the pole and a complete sealing effect under all operational conditions of the accumulator is achieved.
Suitably, a sealing disc, preferably of acidresistant rubber or plastics, is disposed between the cup bottom and the pole. This sealing disc has the special purpose of covering the air gap between the pole and the through-opening of the cup-shape of the plastics top so that during the curing step no liquid casting composition will flow into the accumulator interior. Moreover, this sealing disc also contributes to improving the overall sealing effect.
The cup-like structure of the plastics top could be obtained by placing a cup or a cylinder onto a plane plastics top so that a cup would result.
However, it will be most appropriate to provide a cup-shaped cavity in the range of the throughopening for the pole. Suitably, this cup-shaped cavity is formed integrally with the plastics top.
In a preferred embodiment of the invention, in which a polyolefin, for instance polyethylene or polypropylene, is used as material for the top, the invention permits the accommodation of mechanical forces acting axially on the pole by means of a sliding movement of the entire packing assembly along the inner wall of the cup, whereby the sealing effect is not at all affected.
The invention also provides a method of making a gas and liquid tight pole packing for accumulators having a body consisting of plastics material, in particular of polyethylene or polypropylene, especially for lead accumulators, comprising the following steps:
a) inserting the pole into the substantially central through-opening of the cup-shaped structure of the plastics top,
b) placing a ring-shaped sealing member of acid-resistant rubber or plastics between the through-opening of the cup bottom and the pole,
c) introducing a hard casting composition of an acid-resistant bicomponent resin onto the cup bottom of the cup-shaped structure,
d) curing said hard casting composition to form a solid lower layer,
e) introducing an intermediate layer contiguous with the lower layer and consisting of thermoplastic, permanently elastic, acid-resistant plastics, preferably of hot-melt adhesive such as ethylene acrylo-polymer, or, respectively, other products of this species, or of bitumen, wax, resin, grease,
f) allowing the intermediate layer to cool until it has solidified to form a permanently elastic intermediate layer,
g) applying a second hard casting composition, preferably of an acid-resistant bicomponent resin, and curing the same to form an upper layer of hard casting material.
An embodiment of the present invention is illustrated in the single drawing, which shows, partially in longitudinal section, a gas and liquid tight pole packing.
A pole (1) includes an annular groove (8) in the region of the upper layer (7) of hard casting material. A cup-shaped member (10) extending into the accumulator interior is integrally formed with the plastics top (2). The pole (1) protrudes through a substantially central through-opening (3) formed in the cup-shaped member (10).
Intermediate the cup bottom (4) and the pole (1) a disc-like sealing member (9) is provided. Above the same the lower casting layer (5) is shown which is followed by the intermediate layer (6) of thermoplastic adhesive. Thereabove the second hard casting material layer (7) is disposed which also engages the region of the annular groove (8) of the pole (1).
Such a pole packing is prepared in the following way. When the pole (1) has been placed into the through-opening (3) of the cup-shaped member (10), the disc-like sealing member (9) is first placed in position so that no air gap will remain between the pole (1) and the bottom (4). Then the liquid hard casting composition, which preferably is an acid-resistant bicomponent resin, is poured into the cup and allowed to cure. Thereupon the liquid hot-melt adhesive (6) is poured in and allowed to cure by cooling. The hot-melt adhesive also must be acid-resistant as well as permanently elastic.
In the embodiment according to the figure the upper hard casting composition 7 is poured in and is also allowed to cure. It is highly desirable to provide an annular groove 8 whereby the interengagement of the pole 1 and the entire packing is considerably improved.
By means of the assembly according to the invention, in which a hot-melt adhesive having good sealing properties but no dimensional stability is disposed between two pressureresistant and dimensionally stable hard casting compositions, a reliable and permanent gas and liquid tight pole packing is obtained in a surprisingly simple manner under all practical operational conditions such as temperature variations, varying internal pressure, mechanical loads by vibrations and in case of an axial pole movement etc. The permanently elastic hot-melt adhesive will - in accordance with the load acting thereon - in part be urged between very fine air gaps which, as has been shown by experience, after some time will form between top and casting composition as well as between cell pole and casting composition and have so far been the causes of leakages.
Claims (10)
1. A gas and liquid tight pole packing for accumulators or storage batteries having a body made of plastics material, wherein the plastics top is provided with a cup-shaped part in the region of a through-opening for a pole, a lower layer of a hard casting material is disposed on the bottom of the cup-shaped part, an intermediate layer is disposed adjacent thereto and is made of a thermoplastic, permanently elastic, acid-resistant plastics material, and an upper layer made of a hard casting material is disposed on top of said intermediate layer.
2. A pole packing as claimed in Claim 1, wherein an annular groove is formed in the pole within the region of the upper layer.
3. A pole packing as claimed in Claim 1 or
Claim 2, wherein a sealing member is provided between the through-opening of the bottom of the cup-shaped part and the pole.
4. A pole packing as claimed in any of Claims 1 to 3, wherein the cup-shaped part of the plastics top extends towards the accumulator interior.
5. A pole packing as claimed in any preceding claim, wherein the cup-shaped part is integral with the plastics top.
6. A pole packing as claimed in any preceding claim, which is so constructed that, in case of axial pole displacements, the inner sides of the lower, the intermediate and the upper layers will adhere to the pole while the outer sides of said layers may sealingly slide along the inside of the cup-shaped part of the plastics top.
7. A pole packing substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawing.
8. An accumulator or storage battery having a pole packing as claimed in any preceding claim.
9. A method of making a gas and liquid tight pole packing for accumulators or storage batteries having a body consisting of plastics material, comprising the steps of:
a) inserting the pole into the substantially central through-opening of a cup-shaped structure provided on the plastics top of the accumulator or storage battery,
b) placing a ring-shaped sealing member of acid-resistant rubber or plastics between the through-opening of the cup bottom and the pole,
c) introducing a hard casting composition of an acid-resistant bicomponent resin onto the cup bottom of the cup-shaped structure,
d) curing said hard casting composition to form a solid lower layer,
e) introducing an intermediate layer contiguous with the lower layer and consisting of thermoplastic, permanently elastic, acid-resistant plastics,
f) allowing the intermediate layer to cool until it has solidified to form a permanently elastic intermediate layer,
g) applying a second hard casting composition, and curing the same to form an upper layer of hard casting material.
10. A method of making a pole packing for an accumulator or storage battery, substantially as hereinbefore described with reference to the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3035842A DE3035842C2 (en) | 1980-09-23 | 1980-09-23 | Gas- and liquid-tight pole seal for accumulators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2084390A true GB2084390A (en) | 1982-04-07 |
| GB2084390B GB2084390B (en) | 1984-05-10 |
Family
ID=6112651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8128036A Expired GB2084390B (en) | 1980-09-23 | 1981-09-16 | A gas and liquid tight pole packing |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT380352B (en) |
| DE (1) | DE3035842C2 (en) |
| FR (1) | FR2490879A1 (en) |
| GB (1) | GB2084390B (en) |
| IT (1) | IT1212505B (en) |
| SE (1) | SE453136B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0241085A1 (en) * | 1986-04-07 | 1987-10-14 | C & D Power Systems, Inc. | Post seal and method of manufacture for lead-acid batteries |
| EP2523234A1 (en) * | 2011-05-13 | 2012-11-14 | LG Chem, Ltd. | Battery module and method for manufacturing the battery module |
| US8846240B2 (en) | 2012-02-16 | 2014-09-30 | Lg Chem, Ltd. | Battery cell interconnect and voltage sensing assembly and method of manufacturing the assembly |
| US8871376B2 (en) | 2011-08-31 | 2014-10-28 | Lg Chem, Ltd. | Interconnection assemblies and methods for forming the interconnection assemblies in a battery module |
| US8974938B2 (en) | 2011-08-30 | 2015-03-10 | Lg Chem, Ltd. | Battery system and method for coupling a battery cell assembly to an electrically non-conductive base member |
| US9437859B2 (en) | 2014-04-07 | 2016-09-06 | Lg Chem, Ltd. | Battery cell interconnect and voltage sensing assembly and a battery module |
| US9496544B2 (en) | 2011-07-28 | 2016-11-15 | Lg Chem. Ltd. | Battery modules having interconnect members with vibration dampening portions |
| US9620761B2 (en) | 2014-09-09 | 2017-04-11 | Lg Chem, Ltd. | Battery cell interconnect and voltage sensing assembly and a battery module |
| US9905892B2 (en) | 2015-02-09 | 2018-02-27 | Lg Chem, Ltd. | Battery module and method of coupling first and second electrical terminals of first and second battery cells to first and second voltage sense members of an interconnect assembly |
| US10020483B2 (en) | 2015-02-09 | 2018-07-10 | Lg Chem, Ltd. | Battery module and method of coupling first and second electrical terminals of first and second battery cells to a voltage sense member of an interconnect assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3236370A1 (en) * | 1982-10-01 | 1984-04-05 | Varta Batterie Ag, 3000 Hannover | GAS- AND LIQUID-TIGHT POLE SEALING FOR ELECTRIC ACCUMULATORS, ESPECIALLY LEAD ACCUMULATORS |
| DE8235188U1 (en) * | 1982-12-15 | 1983-06-09 | Accumulatorenfabrik Sonnenschein GmbH, 6470 Büdingen | GAS- AND LIQUID-TIGHT SEALING OF THE METAL POLE OF A BATTERY |
| DE102018208141A1 (en) * | 2018-05-24 | 2019-11-28 | Robert Bosch Gmbh | Lid assembly for a housing of a battery cell |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781414A (en) * | 1952-07-03 | 1957-02-12 | Elgin Nat Watch Co | Electrical energy producing cells and method of making the same |
| US2892006A (en) * | 1954-12-30 | 1959-06-23 | Sonotone Corp | Terminal seals for alkaline electric batteries |
| US3228804A (en) * | 1963-07-29 | 1966-01-11 | Electric Storage Battery Co | Electric storage battery terminal post and cover assembly |
| DE1926763U (en) * | 1965-08-27 | 1965-11-11 | Hessische Accumulatorenwerke G | TRAINING OF THE LID OPENINGS FOR THE POLD LEAD-THROUGH FOR ELECTRIC COLLECTORS. |
| IL43371A (en) * | 1973-10-04 | 1977-04-29 | Abir M | Insulating seal for terminals of primary or secondary cells |
| DE7525500U (en) * | 1975-08-12 | 1976-10-21 | Varta Batterie Ag, 3000 Hannover | ELECTRIC ACCUMULATOR, IN PARTICULAR LEAD ACCUMULATOR WITH SEALED POLE BOLT THROUGH THE LID |
| DE7538815U (en) * | 1975-12-05 | 1976-06-03 | Accumulatorenfabriken Wilhelm Hagen Ag Soest-Kassel-Berlin, 4770 Soest | POLD LEAD THROUGH THE LID OF AN ACCUMULATOR CELL |
| DE7824751U1 (en) * | 1978-08-19 | 1979-10-25 | Varta Batterie Ag, 3000 Hannover | LID GUT-THROUGH FOR POLE BOLTS OF ELECTRIC ACCUMULATORS |
-
1980
- 1980-09-23 DE DE3035842A patent/DE3035842C2/en not_active Expired
-
1981
- 1981-09-16 GB GB8128036A patent/GB2084390B/en not_active Expired
- 1981-09-18 IT IT8124048A patent/IT1212505B/en active
- 1981-09-22 AT AT0407881A patent/AT380352B/en not_active IP Right Cessation
- 1981-09-22 SE SE8105587A patent/SE453136B/en not_active IP Right Cessation
- 1981-09-22 FR FR8117867A patent/FR2490879A1/en active Granted
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0241085A1 (en) * | 1986-04-07 | 1987-10-14 | C & D Power Systems, Inc. | Post seal and method of manufacture for lead-acid batteries |
| US4752545A (en) * | 1986-04-07 | 1988-06-21 | C & D Power Systems, Inc. | Post seal and method of manufacture for lead-acid batteries |
| CN102779954B (en) * | 2011-05-13 | 2014-11-26 | 株式会社Lg化学 | Battery module and method for manufacturing the battery module |
| CN102779954A (en) * | 2011-05-13 | 2012-11-14 | 株式会社Lg化学 | Battery module and method for manufacturing the battery module |
| EP2523234A1 (en) * | 2011-05-13 | 2012-11-14 | LG Chem, Ltd. | Battery module and method for manufacturing the battery module |
| US9178192B2 (en) | 2011-05-13 | 2015-11-03 | Lg Chem, Ltd. | Battery module and method for manufacturing the battery module |
| US9496544B2 (en) | 2011-07-28 | 2016-11-15 | Lg Chem. Ltd. | Battery modules having interconnect members with vibration dampening portions |
| US8974938B2 (en) | 2011-08-30 | 2015-03-10 | Lg Chem, Ltd. | Battery system and method for coupling a battery cell assembly to an electrically non-conductive base member |
| US8871376B2 (en) | 2011-08-31 | 2014-10-28 | Lg Chem, Ltd. | Interconnection assemblies and methods for forming the interconnection assemblies in a battery module |
| US8846240B2 (en) | 2012-02-16 | 2014-09-30 | Lg Chem, Ltd. | Battery cell interconnect and voltage sensing assembly and method of manufacturing the assembly |
| US9437859B2 (en) | 2014-04-07 | 2016-09-06 | Lg Chem, Ltd. | Battery cell interconnect and voltage sensing assembly and a battery module |
| US9620761B2 (en) | 2014-09-09 | 2017-04-11 | Lg Chem, Ltd. | Battery cell interconnect and voltage sensing assembly and a battery module |
| US9905892B2 (en) | 2015-02-09 | 2018-02-27 | Lg Chem, Ltd. | Battery module and method of coupling first and second electrical terminals of first and second battery cells to first and second voltage sense members of an interconnect assembly |
| US10020483B2 (en) | 2015-02-09 | 2018-07-10 | Lg Chem, Ltd. | Battery module and method of coupling first and second electrical terminals of first and second battery cells to a voltage sense member of an interconnect assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| SE453136B (en) | 1988-01-11 |
| IT1212505B (en) | 1989-11-22 |
| DE3035842C2 (en) | 1983-11-10 |
| DE3035842A1 (en) | 1982-04-01 |
| FR2490879B1 (en) | 1984-06-29 |
| FR2490879A1 (en) | 1982-03-26 |
| AT380352B (en) | 1986-05-12 |
| ATA407881A (en) | 1985-09-15 |
| SE8105587L (en) | 1982-03-24 |
| GB2084390B (en) | 1984-05-10 |
| IT8124048A0 (en) | 1981-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |