US3428869A - Hermetically sealed electrolytic cell - Google Patents
Hermetically sealed electrolytic cell Download PDFInfo
- Publication number
- US3428869A US3428869A US586202A US3428869DA US3428869A US 3428869 A US3428869 A US 3428869A US 586202 A US586202 A US 586202A US 3428869D A US3428869D A US 3428869DA US 3428869 A US3428869 A US 3428869A
- Authority
- US
- United States
- Prior art keywords
- closure
- sealing
- container
- electrolytic cell
- hermetically sealed
- 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.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
- H01G9/10—Sealing, e.g. of lead-in wires
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- 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 of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
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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
Definitions
- HERMETICALLY SEALED ELECTROLYTIC CELL Filed Oct. 12, 1966 Sheet 2 of 2 INVENTOR. WILL/AM EKG/8527 6M, 6M, QMAQ M A T TOR/VEYS United States Patent 3,428 869 HERMETICALLY SEALED ELECTROLYTIC CELL William E. Gilbert, Grand Island, N.Y., assignor to Spaulding Fibre Company, Inc., Tonawanda, N.Y. Filed Oct. 12, 1966, Ser. No. 586,202 US. Cl. 317-230 4 Claims Int. -Cl. H01g 9/08 ABSTRACT OF THE DISCLOSURE An electrolytic cell has container laminated with a shoulder on the wall near the open end.
- a laminated seal cap comprises two substantially rigid insulative discs with a sandwich layer of cold-flow insulative caulking material between them.
- the seal cap fits into the open end of the container against the shoulder and the terminals of the cell project through it.
- a marginal lip around the end of the container is spun over against the edge of the cap, and the pressure thus exerted laterally expands the caulking material into sealing engagement with the wall of the container and around terminals.
- This invention relates to electrolytic cells, and more particularly to the end closure and sealing means therefor; such as for example in connection with the construe tion of electrical capacitors, power cells, rectifiers or the like.
- a cell of the type above referred to typically comprises a tubular casing with an integral bottom end wall which is hermetically sealed at its other end subsequent to installation of the functional contents of the cell, by means of a sealing-closure device from which the electric terminals extend. Subsequent to this assembly the top edge of the casing is spun over the marginal edge of the closure device to mechanically retain it in position.
- Another object is to provide improved means for sealing the end closure member relative to the casing wall member and relative to the electric lead and/ or terminal devices extending therethrough.
- Another object is to provide an improved sealing-closure device as aforesaid which is of simple construction and not expensive; yet which functions with improved efiicacy.
- FIG. 1 is a fragmentary sectional view on enlarged scale, through a typical capacitor embodying an end closure and sealing construction of the present invention
- FIG. 2 is a reduced scale top perspective view of the combination closure and sealing device of FIG. 1;
- FIG. 3 is a fragmentary diagrammatic view illustrating a subassembly step in the construction of a modified form of the device
- FIG. 4 corresponds to FIG. 3 and shows another subassembly step thereof.
- FIG. 5 corresponds to FIG. 1 but shows the modified form of the construction attained by the assembly system of FIGS. 3, 4.
- an electrolytic cell embodying the invention may be constructed to comprise a generally cylindrically shaped casing formed of sheet metal or the like.
- the casing portion 10 may be initially formed open at both ends or closed at its bottom end by an integral end wall (not shown), as may be preferred. In any case it will be open at one end (referred to as the upper end herein) to accommodate insertion of the electrodes or the rolled capacitor subassemply therein, such as is indicated at 14.
- Leads or risers as indicated at 16 extend upwardly from the subassembly 14 for electrical connections as indicated at 18 with corresponding terminals 20.
- the terminals 20 typically terminate in right angle flange portions 24 at their lower ends for embedment in the end closure and sealing device; whereby to anchor the terminal pieces in the unit and thus shield the electrical connections against mechanical disruption.
- the combination end closure and sealing device of the present invention is constructed as shown in FIGS. 1, 2, of the drawing herewith to comprise a sandwich-shaped assembly as indicated generally at 25.
- This structure comprises a base plate 26 formed of resin-bonded laminate, fiber board, or the like; a second layer of a non-corrosive cold-flow caulking material such as uncured camelback rubber 28 or a substitute therefor having suitable coldflow properties, as will be explained hereinafter; a next layer of an elastomer material such as cured rubber as indicated at 30; and a top layer of resin-bonded laminate material as indicated at 32.
- the parts are appropriately punched to provide apertures as indicated at 36 (FIG. 2) through which the risers 16 and terminals 20 will snugly slip-fit when the parts are brought into assembled relation as shown in FIG. 1.
- the electrical interconnections between the risers and the terminals may then of course be firmly established by any suitable means such as by mechanically crimping the terminal fins 38 upon the risers, or by soldering the interconnections; or by any combinations thereof.
- the unit comprising the subassembly 14 and the sealingclosure 25 is then lowered into the container 10 until the inner rim portion of the unit 25 seats against an inwardly extending flange portion 39 of the container.
- a retaining washer 40 is then slip-fitted into position to ride upon the top rim portion of the closure unit, whereupon the upper edge of the container may spun inwardly and downwardly as illustrated at 12, thereby completing the mechanical retention of the closure unit in container-sealing position.
- the combination closure and sealing device may be alternatively fabricated in the form of a pair subassemblies.
- the top layers 30, 32 may be initially assembled as a unit while the lower layers 26, 28, are initially assembled as a separate unit. These units are then punched to provide close fitting apertures through which capacitor risers and the terminals will be slip-fitted.
- the terminals 20 may then be slip-fitted upwardly through the top subassembly unit until the bottom flange portions 24 thereof bear upwardly against the bottom of the elastomer plate 30.
- the lower unit is then slip-fitted downwardly upon the risers 16 to the operative position as shown in the drawing.
- the upper unit, carrying the terminals 20 is then slip-fitted downwardly upon the risers 16 until the two units are in mating assembly.
- the electrical connections between the risers and the terminals are then perfected as explained hereinabove.
- the device is then transported to the final assembly station at which the top edge of the container 12 is spun inwardly and down into closure locking position as shown at FIG. 5 in the drawing herewith.
- any other mode of assembly may be employed if preferred, other than the assembly processes described hereinabove; the objective being to attain a firm relative assembly of the closure parts and of the closure device relative to the container.
- the camelback layer may be sprayed or otherwise thinly coated With a film of a release agent, such as a polyethylene solution which will operate to prevent the camelback parts from undesirably adhering to adjacent articles so as to be difiicult to handle during the subassembly and final assembly processes.
- a release agent such as a polyethylene solution which will operate to prevent the camelback parts from undesirably adhering to adjacent articles so as to be difiicult to handle during the subassembly and final assembly processes.
- the elastomer layer 30 restrains the camelback material from extruding out of the assembly while at the same time providing a means allowing the pressures to vent in the event they build up to explosive magnitude.
- said sealing-closure consisting of a sandwich-like unit slip-fitted into said container opening against a supporting shoulder portion thereof and held in place by mechanical pressure applying means, said unit comprising a base plate forming a substantially rigid backing, a body of cold flow caulking-type material layered upon said base plate, a cover sheet of elastomeric material disposed above said body of caulking-type material, and a top cover plate forming a substantially rigid backing in cooperation with said base plate to cause said caulking-type material to be expelled into sealing contact with said container.
- terminal devices include laterally flanged foot portions embedded within said caulking and elastomeric materials.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58620266A | 1966-10-12 | 1966-10-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3428869A true US3428869A (en) | 1969-02-18 |
Family
ID=24344742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US586202A Expired - Lifetime US3428869A (en) | 1966-10-12 | 1966-10-12 | Hermetically sealed electrolytic cell |
Country Status (1)
Country | Link |
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US (1) | US3428869A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3569794A (en) * | 1968-05-22 | 1971-03-09 | Gen Electric | Capacitor cover sealing means |
US3629935A (en) * | 1968-05-22 | 1971-12-28 | Gen Electric | Method of making capacitor having chordwise tab-retaining slit |
US4074417A (en) * | 1974-09-09 | 1978-02-21 | P. R. Mallory & Co. Inc. | Method of sealing electrical housing |
US4997392A (en) * | 1989-11-06 | 1991-03-05 | Motorola, Inc. | Waterproof external connector |
FR2721759A1 (en) * | 1994-06-24 | 1995-12-29 | Motorola Inc | Sealed electrical connector for detonator |
DE19721342C1 (en) * | 1997-05-22 | 1998-07-16 | New York Hamburger Gummi Waare | Sealed electrolytic capacitor prevented from drying out and loss of function |
US6040974A (en) * | 1994-07-19 | 2000-03-21 | Universal Products, Inc. | Capacitor cover |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2758149A (en) * | 1952-12-20 | 1956-08-07 | Joseph B Brennan | Electric device and hermetic seal therefor |
US3248613A (en) * | 1962-04-25 | 1966-04-26 | Itt | Hermetic seal for electrical device |
US3335335A (en) * | 1962-12-21 | 1967-08-08 | Tansitor Electronics Inc | Sealed electrolytic capacitor with insulative plug integrally joined within container opening |
-
1966
- 1966-10-12 US US586202A patent/US3428869A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2758149A (en) * | 1952-12-20 | 1956-08-07 | Joseph B Brennan | Electric device and hermetic seal therefor |
US3248613A (en) * | 1962-04-25 | 1966-04-26 | Itt | Hermetic seal for electrical device |
US3335335A (en) * | 1962-12-21 | 1967-08-08 | Tansitor Electronics Inc | Sealed electrolytic capacitor with insulative plug integrally joined within container opening |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3569794A (en) * | 1968-05-22 | 1971-03-09 | Gen Electric | Capacitor cover sealing means |
US3629935A (en) * | 1968-05-22 | 1971-12-28 | Gen Electric | Method of making capacitor having chordwise tab-retaining slit |
US4074417A (en) * | 1974-09-09 | 1978-02-21 | P. R. Mallory & Co. Inc. | Method of sealing electrical housing |
US4997392A (en) * | 1989-11-06 | 1991-03-05 | Motorola, Inc. | Waterproof external connector |
FR2721759A1 (en) * | 1994-06-24 | 1995-12-29 | Motorola Inc | Sealed electrical connector for detonator |
US6040974A (en) * | 1994-07-19 | 2000-03-21 | Universal Products, Inc. | Capacitor cover |
DE19721342C1 (en) * | 1997-05-22 | 1998-07-16 | New York Hamburger Gummi Waare | Sealed electrolytic capacitor prevented from drying out and loss of function |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SECURITY PACIFIC BUSINESS CREDIT INC., 10089 WILLO Free format text: SECURITY INTEREST;ASSIGNOR:SPAULDING FIBRE COMPANY, INC.;REEL/FRAME:004332/0155 Effective date: 19840918 |
|
AS | Assignment |
Owner name: CITICORP INDUSTRIAL CREDIT, INC.,CALIFORNIA Free format text: SECURITY INTEREST;ASSIGNOR:SPAULDING FIBRE COMPANY, INC., A NH CORP.;REEL/FRAME:004333/0384 Effective date: 19840918 Owner name: CITICORP INDUSTRIAL CREDIT, INC., 444 SOUTH FLOWER Free format text: SECURITY INTEREST;ASSIGNOR:SPAULDING FIBRE COMPANY, INC., A NH CORP.;REEL/FRAME:004333/0384 Effective date: 19840918 |
|
AS | Assignment |
Owner name: ANGUS MCBAIN AND WALTER ROSE, AS CO-AGENTS FOR Free format text: SECURITY INTEREST;ASSIGNOR:SPAULDING COMPOSITES COMPANY, INC., A NEW HAMPSHIRE CORPORATION;REEL/FRAME:007189/0246 Effective date: 19941011 |
|
AS | Assignment |
Owner name: CIT GROUP/CREDIT FINANCE, INC., THE, NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNOR:SPAULDING COMPOSITES COMPANY, INC.;REEL/FRAME:008732/0209 Effective date: 19970827 |
|
AS | Assignment |
Owner name: SPAULDING COMPOSITES COMPANY, INC., NEW HAMPSHIRE Free format text: RELEASE;ASSIGNOR:BT COMMERCIAL CORPORATION;REEL/FRAME:008744/0276 Effective date: 19970826 |