Having Metallic Or Conductive Outer Casing Patents (Class 429/168)
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Patent number: 6472089Abstract: An electrochemical cell is provided that has a negative terminal cover with a hole therein or a raised portion with notches therein to provide adequate air ingress during the coating of a non-conductive material on the raised portion of the negative terminal. The addition of the hole or notches in the negative terminal cover prevents a vacuum from forming and thereby prevents migration of the non-conductive material toward the center of the negative terminal cover. The process of making an electrochemical cell with a negative terminal cover that has a hole therein or has a raised portion with notches therein is also provided.Type: GrantFiled: June 13, 2000Date of Patent: October 29, 2002Assignee: Eveready Battery Company, Inc.Inventors: James C. Stricker, Thomas J. Kmetich
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Patent number: 6468691Abstract: Disclosed is an electrochemical cell using a gasket with projections on both surfaces of an upstanding wall. When used as a seal member between two parts of the housing of an electrochemical cell, a plurality of high compressive stress areas is formed in the gasket wall. When projections on opposite sides of the gasket are not horizontally aligned, an effective seal can be achieved with a thinner-wall gasket, providing more internal cell volume for active materials. Also disclosed is a process for assembling the cell.Type: GrantFiled: February 28, 2000Date of Patent: October 22, 2002Assignee: Eveready Battery Company, Inc.Inventors: Manuel Rafols Malay, Robert E. Ray, Jr.
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Patent number: 6312849Abstract: A battery cell sleeve assembly includes a continuous cylindrical thermal sleeve extending between proximal and distal ends and has a plurality of substantially unidirectional longitudinally extending elongated heat conduction fibers having a thermal conductivity no less than that of aluminum embedded in an adhesive matrix. The thermal sleeve is received on the outer peripheral surface of a cylindrical battery cell and in a contiguous relationship with the battery cell. A cylindrical base member having an annular flange is attached to the thermal sleeve such that the distal ends of the heat conduction fibers are contiguous with the annular flange. With this construction, the annular flange operates as a heat shunt for drawing heat away from the thermal sleeve by conduction between the heat conduction fibers and the annular flange. In one embodiment, the heat conduction fibers are graphite and the thermal sleeve is between about 0.010 and 0.Type: GrantFiled: July 26, 1999Date of Patent: November 6, 2001Assignee: Space Systems/Loral, Inc.Inventor: John C. Hall
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Patent number: 6248473Abstract: An electrochemical cell of the present invention includes a composite cover assembly for the closed end of the cylindrical can of the electrochemical cell. The composite cover includes an electrically conductive contact terminal having a diameter substantially smaller than the diameter of the cylindrical can, and a flexible disk-shaped label that covers the portion of the surface of the closed end of the can that is not covered by the contact terminal. By using a smaller contact terminal, the gap 19 (FIGS. 1 and 2) provided between the positive cover 17 and the closed end 14 of can 15 to accommodate cell bulging in the conventional construction, may be substantially eliminated and the length of the can may be increased without exceeding the standards established for overall battery length. Thus, more active ingredients may be contained in the can, thereby increasing the service life of the electrochemical cell.Type: GrantFiled: July 25, 1997Date of Patent: June 19, 2001Assignee: Eveready Battery Company, Inc.Inventor: Glenn R. Lonsberry
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Patent number: 6228530Abstract: Notches (21a, 21b) are formed at the corners of only one side edge (19a) of a metal jacket blank (19) of a rectangular metal strip. The blank (19) is rolled into a cylindrical shape so that its opposite sides (19a, 19b) are adjoined to each other forming an abutment joint (10) and a lower end (19c) of the blank (19) is inwardly curled and crimped to form a bottom, thus completing an outer metal jacket (18). After a cell member (26) is loaded into the metal jacket (18), the upper end (19d) of the blank (19) is inwardly curled and crimped to cause the notches (21a, 21b) to abut the other side edge (19b) of the blank (19), forming a curled abutment joint (20) along a direction (S) which is different from the radial direction (R) of the metal jacket (18). This arrangement prevents any dents caused by the buckling of the outer metal jacket (18) while being crimped, and allows dry cells to be more efficiently produced.Type: GrantFiled: April 8, 1999Date of Patent: May 8, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tensaburo Dokyu, Akio Sakamoto, Keiji Ogino
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Patent number: 6165640Abstract: A battery can-forming plate consisting of a steel plate plated with an alloy, wherein a hardness of a plated layer formed on one surface of the steel plate is higher than that of a plated layer formed one the other surface thereof. The plated layer having a higher hardness is used as an inner surface of a battery can and the plated layer having a lower hardness is used as an outer surface thereof in forming the battery can. The steel plate is plated with a nickel alloy.Type: GrantFiled: May 19, 1997Date of Patent: December 26, 2000Assignee: Katayama Special Industries, Ltd.Inventor: Hirofumi Sugikawa
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Patent number: 6127064Abstract: A jar can for a secondary battery is formed by deep-drawing a clad material prepared by bonding an aluminum sheet and an iron sheet to each other. A nickel layer is formed between the iron sheet and the aluminum sheet. Another nickel layer is formed on another surface of the iron sheet. Thus, a lightweight jar can for a secondary battery having high rigidity is obtained.Type: GrantFiled: August 24, 1998Date of Patent: October 3, 2000Assignees: Sumitomo Electric Industries, Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Kenichiro Shibata, Yoshio Moriwaki, Isao Matsumoto
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Patent number: 6066412Abstract: The invention relates to a galvanic cell comprising an outer metallic jar which on its outside has an insulating and a decorative layer, which has been applied directly onto the metallic jar by means of a printing and/or coating process.Type: GrantFiled: October 10, 1997Date of Patent: May 23, 2000Assignee: Heitkamp & Thumann Metallverarbeitung GmbH & Co. KGInventors: Jurgen Schirr, Christoph Klaus
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Patent number: 5981103Abstract: An assembly of an electronic device within a sealed chamber of a flexible container. The electronic device, which may be a printed circuit board, has signal terminals connected to elongated insulated signal conductors. These conductors pass through a laminate construction wall of the container for connection to outside conductors. The signal conductors are electrically isolated from an EMI protection layer which forms part of the laminate construction wall. A grounding device connects a ground conductor of the electronic device to the EMI protection layer. The grounding device comprises a ground element having teeth on one side. A screwthread arrangement extends through the container wall and clamps the ground element onto the wall with the teeth cutting into the EMI protection layer to be in electrical contact therewith. The ground conductor is electrically connected to the screwthread arrangement.Type: GrantFiled: December 12, 1997Date of Patent: November 9, 1999Assignee: Northern Telecom LimitedInventors: L. Eugene Batten, Jr., Dennis A. McCulloch, David H. Williams
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Patent number: 5907471Abstract: An energy storage assembly is made of an energy storage device, and electromagnetic interference (EMI) shield, and an adhesive positioned between the EMI shield and the energy storage device for affixing the energy storage device to a surface of the EMI shield. The EMI shield is a metal that is shaped to partially enclose an electrical component other than the energy storage device.Type: GrantFiled: December 29, 1997Date of Patent: May 25, 1999Assignee: Motorola, Inc.Inventors: Hitendra K. Patel, Craig E. Rupp, John C. Byrne
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Patent number: 5840441Abstract: A steel plate having a plated layer on the upper and lower surfaces thereof to be processed into a battery can which is cylindrical and open in one end thereof by drawing and ironing processing. The plated steel plate has more than 1.2 as a Lankford value (r) which is a width deformation degree in a lengthwise direction thereof/a thickness deformation degree in the lengthwise direction thereof, a width deformation degree in a widthwise direction thereof/a thickness deformation degree in the widthwise direction thereof, a width deformation degree in an oblique direction thereof/a thickness deformation degree in the oblique direction thereof. In-plane anisotropy Ar which is the difference among the Lankford values (r) is set to be less than .+-.0.15 so that the elongation coefficient of the plated steel plate in lengthwise, widthwise, and oblique directions is almost constant, i.e., so that the generation of earring can be prevented in drawing and ironing a sheet comprising the steel plate into the battery can.Type: GrantFiled: January 17, 1995Date of Patent: November 24, 1998Assignee: Katayama Special Industries, Ltd.Inventors: Sugikawa Hirofumi, Michibata Sachio, Hayashi Keiichi
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Patent number: 5510208Abstract: A battery cell sleeve assembly comprises first and second cylindrical sleeves contiguously joined and defining an internal recess for receiving a battery cell. The first sleeve is comprised of a plurality of substantially unidirectional longitudinally extending first elongated fibers of high conductivity, low density, material embedded in an epoxy matrix. The second sleeve is comprised of a plurality of second and third elongated fibers of high conductivity, low density, material also embedded in an epoxy matrix, the second and third fibers being substantially unidirectional extending transverse of the first fibers, the second and third fibers extending in mutually transverse directions.Type: GrantFiled: September 28, 1994Date of Patent: April 23, 1996Assignee: Space Systems/Loral, Inc.Inventors: John C. Hall, Juan F. Leon
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Patent number: 5079108Abstract: An improved dry cell seal closure is disclosed which will substantially prevent moisture loss from and/or oxygen ingress into a battery cell while maximizing the volume available within the cell for the cathode mix core.Type: GrantFiled: June 12, 1991Date of Patent: January 7, 1992Assignee: Rayovac CorporationInventors: James H. Annen, Daniel A. Schneider
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Patent number: 5041345Abstract: An electrochemical cell having a temperature-activated vent in series with a pressure-activated vent. The inner cover of the inner cell housing has an upstanding rim around a central pressure release vent. The outer cover that closes the outer cell container has an annular area pressed against this rim and sealed to the rim by a heat fusible solder to form a temperature-responsive vent mechanism in series with the pressure-responsive vent.Type: GrantFiled: June 8, 1990Date of Patent: August 20, 1991Assignee: Eveready Battery CompanyInventor: Thomas J. O'Hara
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Patent number: 5026616Abstract: A plastic leak resistant and corrosion resistant end cover and contact for a battery having an electroless plated layer of nickel, tin or an alloy of nickel and tin on the surfaces thereof so that when in place in a battery it forms a conductive path for carrying current from inside the battery to the outside. A battery employing at least one of the afore described end cover.Type: GrantFiled: November 15, 1989Date of Patent: June 25, 1991Assignee: Eveready Battery Company, Inc.Inventor: Brooke Schumm, Jr.
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Patent number: 4965149Abstract: An outer metal jacket for a dry cell, prepared by butting a rectangular metal plate at both side edges and joining the butted part by welding or bonding to make a cylindrical body, characterized in that a part having smaller mechanical strength is integrally provided on at least one of the upper and lower rims of the cylindrical body as a safety mechanism. When the inner pressure is increased by any reason originated from an electrochemical cell system accommodated therein, the safety mechanism is opened outwardly and the increased pressure is reduced therethrough.Type: GrantFiled: March 10, 1989Date of Patent: October 23, 1990Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Ryohei Ashihara, Kikumitsu Suehiro, Masayuki Yabuta, Hideaki Yamagishi
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Patent number: 4576881Abstract: Electrochemical storage cell with at least one anode space and a cathode space separated from each other by an alkali-ion-conducting solid electrolyte and bounded at least in some areas by a housing. The housing is bounded on its inside by an inner housing element and on its outside by an outer housing element. The inner housing element acts as the current collector and embraces the two reactant spaces. The outer housing element assumes a support function and is arranged on all sides around the inner housing element in the manner of an enclosure. Preferably, the outer housing element is a tubular enclosure with two discs forming the end faces of the storage cell. The inner housing element is preferably made of aluminum and is provided with corrosion protection. The outer housing element can be made of a heat-resistant steel or an organic or inorganic material.Type: GrantFiled: November 2, 1984Date of Patent: March 18, 1986Assignee: Brown, Boveri & Cie AGInventors: Dieter Hasenauer, Kuno Hug
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Patent number: 4539269Abstract: A galvanic cell having a closure member which contains a resealable vent comprising the inwardly turned peripheral edge portion of the cell container and a closure member having a resilient peripheral lip and a resilient annular flange, the low profile construction of which allows for increased amounts of reactive material to be placed within the cell container.Type: GrantFiled: December 20, 1984Date of Patent: September 3, 1985Assignee: Union Carbide CorporationInventor: Manuel R. Malay
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Patent number: 4444854Abstract: An electrochemical cell comprises a spirally wound assembly, the assembly including a negative plate; a porous polyester layer disposed on each major surface of the negative plate; a porous, electrically non-conductive separator disposed on each of the polyester layers; and a positive plate disposed on one of the separators. The cell further includes a housing for enclosing the assembly and an electrolyte such that the electrolyte comes in contact with the plates, polyester layers and separators. The housing includes a pair of external terminals each of which being connected to one of the plates.Type: GrantFiled: September 14, 1981Date of Patent: April 24, 1984Assignee: General Electric CompanyInventor: John W. Hooke
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Patent number: 4237199Abstract: The invention relates to a cylindrical electric cell in which the negative electrode (8) is a sheet of lithium wound round a current collector (1) which is elastically deformable and is in the form of a cylinder whose directrix is a substantially circular curve with two distinct ends. In accordance with the invention, the two portions of cylinder close to said ends are cut into matching shapes so that they fit into each other, the protruding parts (2) of one portion being accomodated in the recessed parts (3) of the other portion. Application to electric cells whose positive active material is liquid.Type: GrantFiled: December 31, 1979Date of Patent: December 2, 1980Assignee: Saft LeclancheInventor: Guy Gelin