Plural Cells Patents (Class 429/149)
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Publication number: 20030054239Abstract: In an assembled battery including at least two unit cells provided within a supporter, each unit cell is a thin laminate cell packaged with a laminate, and each unit cell is covered by a group of at least one resin. Thus, the assembled battery has a stable performance without structure breakdown or a fracture of the connection tab even when vibration is applied.Type: ApplicationFiled: September 5, 2002Publication date: March 20, 2003Applicant: Nissan Motor Co., Ltd.Inventors: Kyoichi Watanabe, Hideaki Horie, Hiroshi Sugawara
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Publication number: 20030054238Abstract: A 9V rechargeable battery comprising a plurality of column cells connected in series and enclosed by a container and a cover with a negative terminal and a positive terminal. Said container (1) further comprises a pair of lateral sidewalls formed with openings and another pair of lateral sidewalls formed with recesses so as to receive said cells snugly.Type: ApplicationFiled: August 23, 2002Publication date: March 20, 2003Inventors: Jianbo Yu, Ping Zhang, Jiangfeng Wu, Xuefeng Gao
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Publication number: 20030017383Abstract: A battery pack includes a plurality of cells (2) stacked on top of one another in tiers; a heat collecting plate (4, 7) made of a wave-like metal sheet and interposed between tiers of the cells so as to make contact with outer peripheral surfaces of upper and lower tiers of the cells alternately; a heat pipe (10) having its heating portion (10a) fitted into a fitting groove (8, 9) formed in the heat collecting plate; a pack case (1) for accommodating the cells, the heat collecting plate, and the heat pipe; and a heat dissipating member (3) attached to the pack case so as to close an opening of the pack case and having on its inner-surface side a concavely-formed receiving groove (11) into which a heat dissipating portion (10b) of the heat pipe is fitted.Type: ApplicationFiled: January 10, 2002Publication date: January 23, 2003Inventors: Hironori Ura, Hiroki Takeshima, Ryoichi Hamasaki, Osamu Aoya, Takehiro Chinen
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Publication number: 20030008207Abstract: Alithium secondary battery for use in electric vehicle, includes: a battery case, and an electricity-generating body including a positive electrode, a negative electrode, and a separator, the positive and the negative electrode being wound or laminated via the separator so that the positive electrode and negative electrode are not brought into direct contact with each other. Each single battery has a ratio (X/E) of battery output X (W) and battery energy E (Wh), of 2 to 36 or a product (R×E) of battery internal resistance R (m&OHgr;) and battery energy E (Wh), of 50 to 900 (m&OHgr;·Wh). The lithium secondary battery is used in an electric vehicle as combined batteries formed by connecting a required number of the single batteries in series.Type: ApplicationFiled: September 5, 2002Publication date: January 9, 2003Applicant: NGK Insulators, Ltd.Inventors: Hiroshi Nemoto, Kenshin Kitoh
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Publication number: 20020177035Abstract: The present invention is a thermal blanketing system used to manage the temperature of individual electrochemical cells within the modules of a single battery system. The present invention uses either a thin walled tube made from either a flexible or rigid material (i.e. plastic, etc.) which is wound in a fashion so at least one side of the tube makes contact with each individual cell, or uses a plurality of individual thermal jackets placed between battery cells such that at least some of the thermal jackets are contacted by at least two of the cells within the battery. In each of the above embodiments, each tube or jacket is filled with a thermal management fluid, chosen for its thermal management characteristics, and which flows throughout the tube or jackets, and acts either as a heat sink absorbing heat from the batteries to cool them, or as a heat source providing heat to the batteries as needed.Type: ApplicationFiled: May 23, 2001Publication date: November 28, 2002Applicant: ALCATELInventors: Salah M. Oweis, Peter G. Allen, Guy Chagnon
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Patent number: 6479186Abstract: A lithium secondary battery for use in electric vehicle, includes: a battery case, and an electricity-generating body including a positive electrode, a negative electrode, and a separator, the positive and the negative electrode being wound or laminated via the separator so that the positive electrode and negative electrode are not brought into direct contact with each other. Each single battery has a ratio (X/E) of battery output X (W) and battery energy E (Wh), of 2 to 36 or a product (R×E) of battery internal resistance R (m&OHgr;) and battery energy E (Wh), of 50 to 900 (m&OHgr;·Wh). The lithium secondary battery is used in an electric vehicle as combined batteries formed by connecting a required number of the single batteries in series.Type: GrantFiled: September 2, 1999Date of Patent: November 12, 2002Assignee: NGK Insulators, Ltd.Inventors: Hiroshi Nemoto, Kenshin Kitoh
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Publication number: 20020165291Abstract: A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is composed of polyolefin fibers having an average fiber diameter from 0.5 to 5 microns and a surface area from 0.2 to 30 square meters per gram.Type: ApplicationFiled: May 6, 2002Publication date: November 7, 2002Inventor: Wai Ming Choi
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Publication number: 20020146600Abstract: A rechargeable electrochemical cell system is provided. The system includes a plurality of cells, wherein each cell is comprised of a first electrode, a second electrode, and a third electrode electrically isolated from the second electrode. The cell system may be discharged upon application of a load across a discharge circuit, which is formed from the first electrodes and the second electrodes. The cell may be recharged upon application of a voltage across a recharging circuit, which is formed of at least one of the first electrodes and at least one of the third electrodes.Type: ApplicationFiled: April 6, 2001Publication date: October 10, 2002Inventors: Aditi Vartak, Tsepin Tsai
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Publication number: 20020136944Abstract: The present invention provides a lithium secondary cell including an inner electrode body impregnated with a non-aqueous electrolyte, made up of a positive electrode and a negative electrode wound or laminated together with a separator inserted in between, an cell case that contains the inner electrode body and an electrode cover that seals the inner electrode body provided with cell covers, external terminals and internal terminals. The lithium secondary cell is provided with a unit for cooling the electric current path. The lithium secondary cell is capable of preventing a lowering of performance and extending the service life by preventing heating of the lithium secondary cell and maintaining temperature within an adequate range.Type: ApplicationFiled: March 12, 2002Publication date: September 26, 2002Applicant: NGK Insulators, Ltd.Inventors: Hiroshi Nemoto, Kenshin Nemoto
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Patent number: 6455190Abstract: The battery module comprises a plurality of cells encased in prismatic cell cases having short lateral walls and long lateral walls coupled together as one piece. Each of the cells accommodates therein a group of electrode plates and liquid electrolyte, wherein collector plates are connected respectively to the groups of positive and negative electrode plates at opposite lateral edges thereof. Connection holes are formed at upper edge portions of the short lateral walls of the cell cases, and the collector plates are formed with connection bosses that fit into the connection holes, so that the connection bosses of the collector plates in neighboring cells are abutted each other and welded together, whereby two adjacent cells are connected to each other.Type: GrantFiled: September 20, 2000Date of Patent: September 24, 2002Assignees: Matsushita Electric Industrial Co. Ltd., Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Inoue, Nobuyuki Matsunaka, Hiromi Kajiya
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Patent number: 6444357Abstract: A plurality of slit-shaped space regions are provided on an anode active material layer on a front surface or a rear surface of an anode sheet so as to reach end planes to make it easy to inject an electrolyte into a scrolled body or a jelly roll of a non-aqueous electrolyte secondary battery through the slit-shaped space regions.Type: GrantFiled: May 17, 2000Date of Patent: September 3, 2002Assignee: NEC TOKIN CorporationInventors: Chika Kambe, Kouichi Zama
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Publication number: 20020119369Abstract: An electrical power generator includes a plastic cylindrical case that has an interior divided into a plurality of chambers. A copper electrode and a zinc electrode are disposed within each of the chambers. The copper electrodes have a positive electromotive force. The zinc electrodes have a negative electromotive force. The electrodes are in a circuit arrangement that has a negative terminal and a positive terminal. The negative output and a positive output terminals are respectively connected to the positive and negative outputs of the generator.Type: ApplicationFiled: February 28, 2001Publication date: August 29, 2002Inventor: Iradj Hessabi
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Publication number: 20020110733Abstract: Systems and methods for producing a multilayer thin film energy storage device having a plurality of thin film battery cells arranged to provide a higher output than a single cell thin film battery. The thin film battery cells are configured so that they stacked one on another with at least one thin film battery cell positioned upside down on top of another thin film battery cell. Alternatively, the thin film battery cells may be arranged in a side-by-side configuration. Each thin film battery cell includes a thin film layer of cathode material and anode material with an electrolyte material disposed between and separating the cathode material and anode material. A thin film current collector is positioned adjacent to each cathode and anode thin film layer. The particular pattern of thin films of current collectors, anodes, electrolytes and cathodes serves to a provide a high output necessary for particular applications.Type: ApplicationFiled: April 9, 2002Publication date: August 15, 2002Inventor: Lonnie G. Johnson
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Publication number: 20020098412Abstract: Electric accumulator battery, which comprises a receptacle (1) with cover, of a size which fits in the compartment traditionally reserved for this purpose in a motor vehicle. This receptacle is subdivided internally into a series of cells (2) that are distributed in two or more parallel rows between which are formed intermediate ventilation ducts (3), which are open to the outside through the bottom and the cover.Type: ApplicationFiled: January 22, 2001Publication date: July 25, 2002Applicant: Sociedad Espanola del Acumulador Tudor, S.A.Inventors: Rafael Ruiz Rodriguez, Antonio Ripoll Anton
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Patent number: 6423441Abstract: A battery pack is provided that includes a case and at least one battery module disposed within the case. The battery pack further includes a flexible circuit to which the battery module may be electrically coupled. The flexible circuit includes a plurality of airflow openings configured to distribute air throughout the battery pack. In a preferred embodiment, the airflow openings vary in size relative to their proximity to an air source.Type: GrantFiled: January 12, 2000Date of Patent: July 23, 2002Assignee: Delphi Technologies, Inc.Inventors: Jeffrey J. Ronning, Robert C. Beer
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Publication number: 20020081487Abstract: The present invention relates to a back-up battery for an electronic device with a rechargeable battery, which electronic device is provided with a contact for connecting a battery charger and which back-up battery consists of one or more battery cells. According to the invention the terminals on the back-up battery are connected to a contact adapted to the contact for the battery charger on the electronic device, with the result that when it is connected to the electronic device's battery charger contact the back-up battery will charge the electronic device's rechargeable battery, thereby providing increased service life for the electronic device.Type: ApplicationFiled: December 21, 2001Publication date: June 27, 2002Inventors: Oivind Resch, Michael Raberg, Tore Lervik
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Patent number: 6410184Abstract: The power source holds a plurality of parallel oriented power modules in a holder-case. The holder-case is provided with cover-casings on both sides and intermediate-casings between them. Holder ribs project from the insides of cover-casings and from both sides of intermediate-casings for arranging power modules in a plurality of rows and retaining them in fixed positions. Cover-casings on both sides and intermediate-casings are joined to sandwich and hold the plurality of rows of power modules in fixed positions via the holder ribs.Type: GrantFiled: January 27, 2000Date of Patent: June 25, 2002Assignee: Sanyo Electric Co., Ltd.Inventors: Tatsuhito Horiuchi, Yoshiharu Takasaki
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Patent number: 6396242Abstract: A battery charging and discharging system is provided. The system has a tray including a battery insertion unit having a plurality of battery insertion portions, into which battery pouches can be inserted, and holes, through which the electrodes of the battery pouches can pass, on its bottom; and a frame surrounding the edge of the battery insertion unit. The system may also have an electrode contact clip including plate springs facing each other so that they can hold an electrode protruding through a hole on the bottom of the battery insertion unit, and a base for supporting the plate springs.Type: GrantFiled: June 14, 2001Date of Patent: May 28, 2002Assignee: Samsung SDI Co., Ltd.Inventors: Gang-Hyeon Choi, Kil-Tae Park, Jong-Min Lee, Soo-Yeol Park
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Publication number: 20020061436Abstract: Disclosed is a battery pack, comprising a secondary battery unit including at least one secondary battery, the at least one secondary battery comprising an electrode group and an insulating case having the electrode group housed therein, and the battery pack further comprising a heat conductive sheet which is provided at at least a part of the surface of the secondary battery unit and has a heat conductivity higher than a heat conductivity of the case.Type: ApplicationFiled: September 21, 2001Publication date: May 23, 2002Inventors: Hiroki Inagaki, Norio Takami, Tatsuoki Kohno, Tomokazu Morita, Haruchika Ishii
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Publication number: 20020051904Abstract: A battery set and a method for producing electric power output are disclosed as including a plurality of groups (A, B) of series-connected battery cells, wherein each group produces a voltage of x [V] in a normal state and a voltage of y [V] in an overcharged state and wherein each group includes more than y/(y−x) pieces and less than 400/x pieces of battery cells (12a, 12b, 12c, 12n; 14a, 14b, 14c, 14d, 14n) which are connected in series, and the plurality of groups of the series-connected battery cells are connected in parallel. Preferably, the battery set includes plural groups of more than fourpieces of LiMn2O4 type lithium ion battery cells which are connected in series, with the plural groups being connected in parallel.Type: ApplicationFiled: October 24, 2001Publication date: May 2, 2002Applicant: Nissan Motor Company, Ltd.Inventors: Takanori Itoh, Yuji Tanjo
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Patent number: 6372382Abstract: A lead-acid battery, which achieves a low profile while allowing grids of relative maximum height to be used, comprises a container having the terminal cells located adjacent the front of the battery so as to allow ready access to the battery when located in racks or the like in service, and a cover, preferably a two-piece cover, containing the terminals, interior surfaces of the cover and top surfaces of the container being sloped upwardly in a rearward direction from the front of the battery, thereby allowing the use of relatively tall grids.Type: GrantFiled: August 21, 1999Date of Patent: April 16, 2002Assignee: GNB Technologies, Inc.Inventor: Steven R. Peterson
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Publication number: 20020028376Abstract: A battery device designed so that a plurality of battery modules (1) are arranged in rows at given spaces in a enclosure (2). Turbulence accelerators (5), such as dummy battery units or the like, are provided in a position on the uppermost-stream side of the enclosure in which air flows in the direction of arrangement of the battery modules. The heat transfer ability for the battery modules in the upper-stream position is enhanced by the turbulence accelerators which disorders the airflow introduced into the enclosure. Auxiliary coolant intake ports (7) for the introduction of a coolant are provided in the middle of an airflow path, whereby the heat transfer ability on the lower-stream side is enhanced, so that battery temperature differences between the battery units arranged in the enclosure can be restrained. Thus, a simple-construction battery device is realized enjoying improved quality and operation stability.Type: ApplicationFiled: October 31, 2001Publication date: March 7, 2002Applicant: TOSHIBA BATTERY CO., LTD.Inventors: Tetsuya Yamane, Katsumi Hisano, Tsutomu Matsui, Kei Matsuoka, Hideo Iwasaki
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Publication number: 20020012833Abstract: A monoblock battery case and a monobock battery. The monoblock battery case comprises a first and a second container each having partitions that divide the containers into cell compartments. The first container is attached to and co-operates with the second container to form one or more coolant channels disposed between the first and second containers.Type: ApplicationFiled: May 21, 2001Publication date: January 31, 2002Inventors: Philippe Gow, Anthony Osgood, Subhash K. Dhar, Dennis A. Corrigan, Stanford R. Ovshinsky
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Publication number: 20010038943Abstract: An electrochemical cell comprising a medium rate electrode region intended to be discharged under a substantially constant drain and a high rate electrode region intended to be pulse discharged, is described. Both electrode regions share a common anode and are activated with the same electrolyte.Type: ApplicationFiled: May 3, 2001Publication date: November 8, 2001Inventors: David M. Spillman, Esther S. Takeuchi
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Publication number: 20010033963Abstract: Sheet batteries are connected in series, layered and sandwiched between an upper substrate and a lower substrate, and the sheet batteries, the upper substrate and the lower substrate form a layered substrate with the batteries. Holes for wires of ICs are formed in the layered substrate. Applied voltages are determined according to batteries to which the holes are formed. The voltages of the sheet batteries may be uniform, or different.Type: ApplicationFiled: April 18, 2001Publication date: October 25, 2001Inventors: Akihisa Yamazaki, Youichi Sawachi
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Patent number: 6296968Abstract: A one-piece battery comprises a tank divided into cells each receiving an electrode assembly, closure means for the tank and a circulating fluid type heat exchanger facing the relatively larger faces of the electrode assembly. The fluid flows in a compartment defined by two flanges which incorporate a fluid inlet orifice communicating with a common inlet manifold and a fluid outlet orifice communicating with a common outlet manifold. The tank comprises at least two units and each unit comprises at least one cell delimited by walls. The wall facing a relatively larger face of the electrode assembly constitutes one of the flanges. Each unit further incorporates a portion of an inlet and outlet manifold. The units are fastened together so that the flanges when placed face-to-face form a sealed circulation compartment and the portions of the same manifold are aligned with each other.Type: GrantFiled: June 8, 1999Date of Patent: October 2, 2001Assignee: AlcatelInventor: Roelof Verhoog
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Patent number: 6275003Abstract: A plurality of prismatic battery modules, each having a positive electrode connecting terminal and a negative electrode connecting terminal are arranged at opposite ends thereof, in a row such that the positive and negative electrode connecting terminals are directed alternately in opposite directions, thereby constituting a battery pack. A first and a second connection modules disposed at either end of the battery pack for connecting the battery modules in series are constituted by mutually linking, in a relatively displaceable manner, module connectors that comprise metal connection elements integrally held in a resin frame.Type: GrantFiled: June 8, 2000Date of Patent: August 14, 2001Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Shuhei Marukawa, Ko Watanabe, Yasuyoshi Fukao
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Patent number: 6270920Abstract: A battery module has a plurality of electrically connected unit cells fixed in a container. A buffer member is provided at the void between the inner wall of the container and the unit cell. By virtue of the buffer member in the battery module formed of a heat conductive elastic body, the requirement of vibration resistance can be met by the buffer member while the heat generated by the unit cell can be easily discharged via the buffer member. Thus, a battery module suppressed in degradation of the performance of the unit cell caused by heat can be provided.Type: GrantFiled: March 19, 1999Date of Patent: August 7, 2001Assignee: Sanyo Electric Co., Ltd.Inventors: Naoya Nakanishi, Kouichi Satoh, Yoshito Chikano, Kazunari Ohkita, Ikuo Yonezu, Koji Nishio
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Publication number: 20010010878Abstract: A battery module has a plurality of electrically connected unit cells fixed in a container. A buffer member is provided at the void between the inner wall of the container and the unit cell. By virtue of the buffer member in the battery module formed of a heat conductive elastic body, the requirement of vibration resistance can be met by the buffer member while the heat generated by the unit cell can be easily discharged via the buffer member. Thus, a battery module suppressed in degradation of the performance of the unit cell caused by heat can be provided.Type: ApplicationFiled: March 6, 2001Publication date: August 2, 2001Applicant: Sanyo Electric Co., LTD.Inventors: Naoya Nakanishi, Kouichi Satoh, Yoshito Chikano, Kazunari Ohkita, Ikuo Yonezu, Koji Nishio
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Patent number: 6265094Abstract: A metal-air cell with an anode container. The anode container is made from a reactive metal. The metal-air cell also has an absorbent layer with a first side and a second side. An electrolyte is substantially trapped within the absorbent layer. The first side of the absorbent layer is positioned in contact with the anode container and an air electrode is positioned in contact with the second side of the absorbent layer.Type: GrantFiled: November 12, 1998Date of Patent: July 24, 2001Assignee: AER Energy Resources, Inc.Inventors: Christopher S. Pedicini, John Witzigreuter
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Patent number: 6261719Abstract: A battery-connecting plate for connecting batteries in series. The batteries, each with a positive and a negative electrodes at opposite ends, are assembled in a row with the positive and negative electrodes reversed in an alternating manner. The battery-connecting plate includes a base plate of synthetic resin; connection portions each having a busbar provided on the base plate, the busbar having a predetermined number of holes for passing therethrough of a corresponding number of the electrodes for connection therewith; and a pitch adjusting means provided on the base plate at every predetermined number of the connection portions for adjusting a deviation in position between the electrodes and the holes of the busbars.Type: GrantFiled: September 8, 1999Date of Patent: July 17, 2001Assignees: Yazaki Corporation, Toyota Jidosha Kabushiki KaishaInventors: Tomohiro Ikeda, Satoshi Saito
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Patent number: 6255015Abstract: A multiple cell monoblock battery in which a plurality of electrochemical cells are disposed in a plastic or metal case and each of the cells includes an enclosure providing for gas to exit while preventing electrolyte to exit the enclosure. A novel integral system of flow channels allows liquid coolant to flow between adjacent cells. Other special features, such as cell interconnections are described.Type: GrantFiled: August 23, 1998Date of Patent: July 3, 2001Assignee: Ovonic Battery Company, Inc.Inventors: Dennis A. Corrigan, Philippe Gow, Lin R. Higley, Marshall D. Muller, Anthony Osgood, Stanford R. Ovshinsky, Joshua Payne, Rajeev Puttaiah
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Patent number: 6238818Abstract: The invention relates to a housing which receives dry cells in an in-line or end to end orientation. The invention includes features which prevent the incorrect orientation by preventing dry cell terminals making contact with the necessary components. In this way, it prevents premature dissipation of dry cells or their impairment. The mechanism by which these features do this is to recess one terminal namely that terminal which would be contacted by the positive terminal of a dry cell. In this way, the negative terminal of a dry cell can never make electrical connection. Another feature of the invention is the provision of an aperture having a profile of a silhouette of a dry cell, which has advantages in low light situations, saves material, and allows for relatively easy extraction of dry cells from the cartridge.Type: GrantFiled: June 23, 1999Date of Patent: May 29, 2001Assignee: Eveready Battery Company, Inc.Inventor: David R. Dalton
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Patent number: 6228528Abstract: The invention pertains to housings and enclosures for assemblies of electrochemical cells such as used in consumer electronic devices. A system of structural elements having constant cross-section along at least one axis is provided to construct protective housings for electrochemical cell assemblies. Where cell assemblies include sensitive circuit elements such as circuit boards the fabricated housings include cover portions to reduce the chance of impact or contact damage to the circuit elements. By designing structural elements having open and constant cross-sections, a family of housing components may be fabricated from a single structural element by altering a length. Different configuration housings may also be constructed by rearranging the housing components or introducing additional interconnecting components. By incorporating a unified interconnecting element into each component, interchangeability is increased.Type: GrantFiled: December 21, 1998Date of Patent: May 8, 2001Assignee: Eveready Battery Company, Inc.Inventors: Rick Burkholder, David Baggaley, Ernest Botos, Alexander Jacobs, III
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Patent number: 6218043Abstract: The battery has two legs of equal voltage (expressed as Volts DC or VDC) and equal electrochemical capacity (expressed as Ampere-Hours or AH). Each leg has one or more hinged and electrically connected modules. Both legs are hinged to each other but are not electrically connected. The modules of the battery can be folded into four basic prismatic shapes and an infinite number of non-prismatic shapes. Each shape is basically two batteries because the equal voltage legs can be connected to the load equipment in electrical series or electrical parallel. An adapter can be connected to the battery to provide additional battery footprints.Type: GrantFiled: October 20, 1998Date of Patent: April 17, 2001Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Fee Chan Leung, Mary A. Hendrickson
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Patent number: 6197446Abstract: A sealed secondary battery assembly in which electricity-generating elements are accommodated in cases made of resin formed in rectangular tubular shape having a bottom, a plurality of cells constituted by sealing the apertures of cases by covers made of resin are arranged in series, these being electrically connected by electrical connection elements, wherein: the cases of the individual cells are constituted by a unitary case and the covers of the individual cells are constituted by a unitary cover, support elements made of resin in which are fixed electrical connection elements are joined to support element mounting passage sections provided on partition sections that define the space for the cells, said electrical connection elements being thereby arranged so as to pass through said partition sections.Type: GrantFiled: June 15, 1999Date of Patent: March 6, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shinsuke Fukuda, Mitsugu Takaki, Kenji Sato, Rye Iwamura, Toshinobu Yokoyama
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Patent number: 6146783Abstract: A multi-cell storage battery, in particular to a lithium storage battery, which contains a temperature control device and in which groups of one or more individual cells arranged alongside one another are separated from one another by a thermally insulating solid layer whose coefficient of thermal conductivity lies between 0.01 and 0.2 W/(m*K), the thermal resistance of the solid layer being greater by at least a factor .lambda. than the thermal resistance of the individual cell. The individual cell is connected, at least in a region free of insulating material, to a heat exchanger, the thermal resistance of the heat exchanger in the direction toward the neighboring cell being selected to be greater by at least a factor .lambda. than the thermal resistance of the individual cell and, in addition, the thermal resistance of the heat exchanger toward the temperature control medium being selected to be smaller by at least a factor of about 10 than the thermal resistance of the individual cell, and .lambda.Type: GrantFiled: May 21, 1998Date of Patent: November 14, 2000Assignee: Varta Batterie AktiengesellschaftInventors: Thomas Brohm, Friedhelm Bottcher
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Patent number: 6114060Abstract: Thin-profile battery circuits and constructions, and in particular button-type battery circuits and constructions and methods of forming the same are described. In one implementation, a substrate is provided having an outer surface with a pair of spaced electrical contact pads thereon. At least two thin-profile batteries are conductively bonded together in a stack having a lowermost battery and an uppermost battery. The batteries include respective positive and negative terminals. The lowermost battery has one of its positive or negative terminals adhesively bonded to one of the pair of electrical contact pads while the uppermost battery has one of its positive or negative terminals electrically connected to the other of the pair of electrical contact pads. The batteries can be provided into parallel or series electrical connections.Type: GrantFiled: February 22, 1999Date of Patent: September 5, 2000Assignee: Micron Technology, Inc.Inventor: Mark E. Tuttle
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Patent number: 6051336Abstract: The present invention includes a battery case and battery wherein the battery case includes a housing having a top and a bottom and wherein the housing defines a plurality of cavities that are generally octagonal in cross-section. The battery includes a housing defining octagonal shaped cavities, a terminal coupled to the housing, a top and bottom sealingly coupled to the housing, and a plurality of battery cells disposed win the cavities and electrically interconnected in series with the terminal.Type: GrantFiled: January 19, 1998Date of Patent: April 18, 2000Assignee: Johnson Controls TechnologyInventors: Thomas J. Dougherty, Michael G. Andrew, Gerald K. Bowen, Jeffrey P. Zagrodnik
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Patent number: 5977746Abstract: A rechargeable battery pack (20) having a plurality of rechargeable cells (30) that form a cell cluster (32). Binders (62) formed of electrically insulating material are secured over the top and bottom of the cells. Each binder is formed with a set of openings (64) that exposed the base (52) of each cell which serves as its negative terminal and its head (54), which serves as its positive terminal. The binders are further shaped so that the perimeter sections that define the openings extend around the cell lips (56) integral with the bases (52) that surround the heads (54). Conductive straps (70) extend between the openings over the binders to electrically connect the cells together. Thus, the binders, in addition to securing the cells together, insulate the straps from the underlying cell lips. This insulating function prevents the straps from shorting out the cells to which they are connected.Type: GrantFiled: July 21, 1998Date of Patent: November 2, 1999Assignee: Stryker CorporationInventors: David E. Hershberger, John Izenbaard
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Patent number: 5942353Abstract: A plurality of battery cells are each contained within a separate casing. Each cell has a positive terminal and a negative terminal, each terminal comprising a threaded post extending outwardly from the casing. A battery cable adapter is provided for electrical connection of the terminal to a battery cable. A conductive bar includes a first aperture configured to receive one of the posts of one of the cells, and a second aperture configured to receive one of the posts of an adjacent one of the cells. Nuts threadedly engage the posts to engage the conductive bar securely to the posts. An insulated connector cap is configured to cover the conductive bar and the posts received within the first and second apertures of the bar. A holder is configured to receive the cells together in an adjoining manner wherein at least one of the terminals of each of the cells is adjacent one of the terminals of an adjacent one of the cells.Type: GrantFiled: May 22, 1997Date of Patent: August 24, 1999Inventor: Roger A. Schoultz
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Patent number: 5935728Abstract: An electrochemical cell comprising a medium rate electrode region intended to be discharged under a substantially constant drain and a high rate electrode region disposed in a jellyroll wound configuration intended to be pulse discharged, is described. Both electrode regions share a common anode and are activated with the same electreolyte.Type: GrantFiled: April 4, 1997Date of Patent: August 10, 1999Assignee: Wilson Greatbatch Ltd.Inventors: David M. Spillman, Esther S. Takeuchi
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Patent number: 5906899Abstract: A sealed lead acid storage battery includes a monoblock container, a cover, plural assembly elements, each assembly element comprising a plurality of positive and negative electrode plates that are stacked via separators in a predetermined direction, a positive and negative electrode strap, and a positive and negative electrode terminal. The positive and negative electrode terminals protrude above the cover. The container further comprises ribs formed inside a bottom surface thereof for enabling the electrode plates to rest on the ribs. Each positive electrode plate has a pair of feet that are formed on a lower end thereof in a substantially symmetrical arrangement and further comprises a lug connected to the positive electrode strap that is disposed at a position shifting either to the left or to the right. One of the feet correspond to the position having the lug not resting on any rib, while the other foot rests on a rib.Type: GrantFiled: December 9, 1996Date of Patent: May 25, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Muneyoshi Noda, Yasuhiko Uchida, Yukihiro Onoda, Hiroshi Sugiyama
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Patent number: 5886501Abstract: A battery pack including a cover overlying a plurality of individual batteries and a plurality of inter-battery connectors for electrically coupling the several batteries together. The inter-battery connectors are secured to the cover such that upon removal of the cover all of the connectors are removed from the batteries en masse.Type: GrantFiled: April 7, 1997Date of Patent: March 23, 1999Assignee: General Motors CorporationInventors: Richard William Marks, John D. Steele
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Patent number: 5871861Abstract: A lithium ion secondary cell comprises a plurality of single cells composed of a collector comprising positive electrodes composed of a metallic material coated with a positive electrode active substance; negative electrodes composed of a metallic material coated with a negative electrode active substance; separators interposed between the positive and negative electrodes; lugs of the metallic materials where the active substance is not coated; and conductors adapted to bunch and clamp the lugs of the positive and negative electrodes separately, the positive and negative electrodes being assembled in laminate alternatively, and the ends of the lugs of the positive and negative electrodes being welded to the respective conductors separately so that electric current can be taken out through the conductors.Type: GrantFiled: October 8, 1996Date of Patent: February 16, 1999Assignee: Mitsubishi Chemical CorporationInventors: Nobuyoshi Hirokou, Yuukichi Kobayashi, Isao Kaneko, Minoru Inoue, Tomikazu Koyama
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Patent number: 5825155Abstract: In a battery-driven portable computer, a battery pack is constituted by m battery sets connected in series each including n lithium-ion secondary battery cells connected in parallel. A voltage monitor for monitoring the voltage of the terminal electrode of each battery set and a charger for independently appropriately charging each battery set in accordance with a monitor result are arranged, thereby realizing battery driving by a lithium-ion secondary battery pack having a large capacity.Type: GrantFiled: May 9, 1997Date of Patent: October 20, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Hironori Ito, Yuichiro Hino, Naoki Tashiro, Masahiko Hagiwara, Keiichi Mitsui, Akihiko Uchida
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Patent number: 5796188Abstract: A medical instrument, such as a surgical drill, includes a battery-powered handpiece and a booster. The handpiece includes an electrical device, such as a motor, having an operating characteristic responsive to changes in DC voltage and a battery that applies a first DC voltage to the electrical device. The booster is disposed externally of the handpiece body and includes a DC power source and a cable for connecting the DC power source with the battery in the handpiece to apply a second DC voltage to the electrical device. The operating characteristic of the electrical device, e.g., speed, is modified by selectively coupling or decoupling the booster from the handpiece.Type: GrantFiled: October 5, 1995Date of Patent: August 18, 1998Assignee: Xomed Surgical Products, Inc.Inventor: F. Barry Bays
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Patent number: 5728488Abstract: In a high-energy battery with a plurality of individual cells, the individual cells have the shape of flat parallelepipeds. The parallelepipeds are arranged flush to form a flat battery body. The battery body is surrounded on its two wide sides by a liquid heat exchange medium.Type: GrantFiled: August 14, 1996Date of Patent: March 17, 1998Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Herbert Kranz, Peter Catchpole, Robert Hoeppler
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Patent number: 5635814Abstract: A modular battery system for a portable device including a charging module with a retractable plug and charging circuit for converting an AC line voltage to a DC battery charging current. The charging module combines with a battery module and optional fuel gauge (if present) to form a single unit for recharging, preconditioning the battery, and connection to the portable device. The modules are releasably connected, preferably involving conductive fasteners, so that a user may connect a new battery module to an old charging module. The releasable connection serves as both the mechanical and the electrical interface between the battery module and the charging module. The conductive fasteners may be located in different positions on the modules to accommodate different connector geometries. The charging module may also combine with a battery mounting module, rather than the battery module, so that the system works with conventional battery packs.Type: GrantFiled: February 16, 1995Date of Patent: June 3, 1997Assignee: International Components CorporationInventors: Ejaz Afzal, Bradley E. Bylund, Charles W. Frank, Jr., Darrel W. Pontius
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Patent number: 5604051Abstract: There is described an lithium--alloy/molten salt/metal sulfide electrochemical cell which eliminates the use of perforated baskets to restrain active materials and uses simple mechanical seal made from ceramic material. It also uses high melting point salt as the electrical insulator between the electrodes and the cell can. In the cell, the positive current collector is made from flexible graphite and a corrosion resistant metal. The cell is assembled in a low carbon steel case with side closure.Type: GrantFiled: October 17, 1994Date of Patent: February 18, 1997Inventors: Christopher J. Pulley, Steven J. Specht, Geoffrey Barlow