In End-to-end Contact, E.g., Stacked Button-type Cell, Etc. Patents (Class 429/157)
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Patent number: 8470467Abstract: A battery module comprising a plurality of battery cells arranged in a stacked configuration, each of the battery cells including a first terminal disposed on a first end of the battery cell and a second terminal disposed on a second end of the battery cell, wherein the first terminal of at least one of the battery cells is in direct electrical communication with the second terminal of another non-adjacent one of the battery cells.Type: GrantFiled: May 27, 2010Date of Patent: June 25, 2013Assignee: GM Global Technology Operations LLCInventors: Chih-Cheng Hsu, Rebecca S. Ratz
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Publication number: 20130157111Abstract: A casing for a lithium bipolar electrochemical battery including a bipolar element. The casing includes a composite material including a matrix and at least one porous reinforcement, the matrix of which includes at least one hardened polymer impregnating the at least one porous reinforcement, wherein the at least one porous reinforcement and the at least one hardened polymer encase the bipolar element and maintain a determined pressure on either side of the bipolar element to maintain a determined contact between its constituents.Type: ApplicationFiled: August 23, 2011Publication date: June 20, 2013Applicant: COMMISSARIAT A L'ENRGIE ATOMIQUE ET AUX ENE ALTInventors: Marianne Chami, Lionel Picard
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Publication number: 20130157112Abstract: Disclosed herein is a high-voltage battery with an integrated connector. The high-voltage battery includes cells, support members, a housing, the integrated connector and a BMS. A lower connection member is provided on one side of each support member and has protrusions made of electrical conductors. The protrusions come into contact with corresponding electrodes of the cells. A cell assembly formed by the arrangement of the cells and the supports is inserted into the housing. The integrated connector is connected to the lower connection members of the support members so as to mechanically and electrically connect the cells to each other.Type: ApplicationFiled: September 1, 2011Publication date: June 20, 2013Applicant: SK INNOVATION CO., LTD.Inventors: Jae Hwan Lim, Soo Yeup Jang
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Publication number: 20130143101Abstract: A battery module is configured such that n series blocks 20, each having m cells 10 connected in series, are connected in parallel. Adjacent cells 10 are connected in parallel via a first fusible link 30. One end of each of the series block 20 is connected to an input/output terminal 50 via a second fusible link 40. The number m of the cells 10 and the number n of the series blocks satisfy the formulas (1) and (2): m?½[Vc/Rc·If1?Rf1/Rc+3]??(1) n?(Vc+If2·Rc)/[Vc?(m?1)If2·Rc]??(2) where Vc and Rc represent an electromotive voltage and an internal resistance of the cell 10, respectively; Rf1 and If1 represent a resistance and a fuse current of the first fusible link 30, respectively; and If2 represents a fuse current of the second fusible link 40.Type: ApplicationFiled: January 29, 2013Publication date: June 6, 2013Applicant: PANASONIC CORPORATIONInventor: Panasonic Corporation
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Publication number: 20130136974Abstract: Disclosed is a safety structure for a high voltage battery of a vehicle. The safety structure includes a plurality of battery modules arranged in series with opposing poles adjacent to each other and a plurality of bus bars electrically connecting terminals having opposing poles of neighboring battery modules among the battery modules with each other. Furthermore, a meltable section having a locally large electrical resistance value is integrally formed in each bus bar itself.Type: ApplicationFiled: June 22, 2012Publication date: May 30, 2013Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANYInventors: Do Kyoung Lim, Suk Hyung Kim, Jae Hoon Choi, Yoon Jun Lee
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Publication number: 20130130071Abstract: A battery pack has battery cells and bus bars. Each of the battery cells is covered with an exterior case. All the battery cells are electrically connected in series through the bus bars. The battery cells are divided into a first stacked group and a second stacked group arranged adjacent to each other in a lateral direction of the battery pack. The battery cells in each stacked group are stacked in a thickness direction of the battery pack. The stacked groups have a different number of the battery cells in order to make a stair structure. An electrode terminal of one end terminal of the battery cells connected in series is arranged adjacent to the stair structure. A control board is arranged on a lower step part of the stair structure. Devices formed on the control board detect a state of each battery cell.Type: ApplicationFiled: November 23, 2012Publication date: May 23, 2013Applicant: DENSO CORPORATIONInventor: DENSO CORPORATION
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Publication number: 20130115493Abstract: Systems and methods are disclosed for battery cells with positive polarity rigid containers. In accordance with disclosed embodiments, the cell may include a container and a lid piece that couple together to form a rectangular prismatic geometry. An electrode assembly having positive and negative coils may be disposed within the cell, and the positive coil may be conductively coupled to the cell. In this way, the cell (e.g., both the lid and the container) may be positively polarized. Further, the electrode assembly may incorporate a jelly-roll or a stacked structure. In one embodiment, the lid piece may include a vent that opens in response to pressure in the cell surpassing an established threshold. The lid may further include a positive terminal, negative terminal, and a method for filling the cell with electrolyte. Another embodiment may provide a battery module include multiple cells with positive polarity rigid containers.Type: ApplicationFiled: October 24, 2012Publication date: May 9, 2013Applicant: JOHNSON CONTROLS TECHNOLOGY LLCInventor: Johnson Controls Technology LLC
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Patent number: 8420251Abstract: A battery is provided with a plurality of unit cells each having a tab, a bus bar connecting the tab of one of the plurality of unit cells and the tab of another one of the plurality of unit cells, and a plurality of welding points disposed on a center of gravity of an area, in which the bus bar and the tab are overlapped, or a vicinity thereof, and at least one position of line segments, radiately extending from the center of gravity, or a vicinity thereof, such that the bus bar and the tab are connected to one another at the plurality of welding points.Type: GrantFiled: February 5, 2003Date of Patent: April 16, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Kyoichi Watanabe, Hideaki Horie, Takanori Ito, Takaaki Abe, Osamu Shimamura, Takamitsu Saitou, Hiroshi Sugawara
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Patent number: 8394525Abstract: A battery includes a plurality of stacking supports including retaining flanges and support surfaces; and a plurality of generally cylindrical cells. Each cell is supported on a pair of the support surfaces. Each cell has an annular notch defined in a side wall with the annular notch mating with one retaining flange. The cells are arranged upon the stacking supports in a plurality of cell rows. The support surfaces are arranged on the stacking supports in such a manner so that the cells are arranged in a close-packed array and to maintain at least a predetermined distance between adjacent cells.Type: GrantFiled: June 22, 2010Date of Patent: March 12, 2013Assignee: Ford Global Technologies, LLCInventors: Patrick Daniel Maguire, Sarav Paramasivam
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Publication number: 20130034751Abstract: A power battery system includes a number of parallel groups that being connected in series and a number of improved electrode boards. Each of the parallel groups comprising a number of single batteries connected in parallel. Each of the improved electrode boards being connected between two neighbored parallel groups. Each of the improved electrode boards includes a number of electrode contact plate, a conductive substrate, and a number of security devices. Each electrode contact plate connects two neighbored single batteries of two neighbored parallel groups in series. Each of the security devices corresponds to an electrode connection plate and electrically connects an electrode connection plate to the conductive substrate. Each of the security devices fuses when one of the single batteries of a parallel group occurs short circuit.Type: ApplicationFiled: April 11, 2012Publication date: February 7, 2013Inventor: De-xian GENG
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Patent number: 8349485Abstract: A modular battery includes a housing, a first planar battery cell having a first planar electrode surface, a second planar battery cell having a second planar electrode surface, and an interconnector disposed between the first planar surface and the second planar surface and electrically connecting the first and second planar electrode surfaces, side peripheries of the interconnector, the first and second planar battery cells being electrically insulated from the housing. A method is also provided.Type: GrantFiled: March 30, 2012Date of Patent: January 8, 2013Assignee: Lightening EnergyInventors: Duncan Culver, Christopher K. Dyer, Michael L. Epstein
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Publication number: 20130004829Abstract: An electrochemical cell has first and second electroactive layers, a heterogeneous ohmic contact, and a homogeneous ohmic contact. The heterogeneous ohmic contact includes dissimilar first and second conductors, with the first conductor joined to the first electroactive layer and the second conductor oriented opposite the first electroactive layer. The homogeneous ohmic contact includes the second conductor, joined to the second electroactive layer.Type: ApplicationFiled: July 2, 2012Publication date: January 3, 2013Applicant: A123 SYSTEMS, INC.Inventor: Chad Allison
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Patent number: 8298700Abstract: A prismatic sealed rechargeable battery includes a substantially prismatic battery case that accommodates an electrode plate assembly and an electrolyte solution. The battery case is formed of metal. On a side face of the battery case, a thin plate is provided which has a plurality of protruding portions formed in parallel at appropriate intervals. The protruding portion and the side face form spaces opened at both ends therebetween. The thin plate is bonded to the side face of the battery case by making flat portions between the protruding portions into surface-contact with the side face, thereby improving cooling capability of the battery.Type: GrantFiled: January 20, 2012Date of Patent: October 30, 2012Assignees: Panasonic Corporation, Toyota Jidosha Kabushiki KaishaInventors: Takashi Asahina, Shinji Hamada, Toyohiko Eto
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Patent number: 8228024Abstract: A battery container is presented which provides multiple configurations that allow the storage of cylindrical or rectangular batteries in a magazine and ensures the maintenance of a consistent orientation, easy access, and physical protection of the batteries. The battery container is further adaptable to provide easy recharging of the batteries. The battery container is additionally configurable to be connectable with other battery containers, allowing the easy storage and distinguishability of charged and discharged batteries. The convenient storage for discharged batteries increases the likelihood that more batteries will be retained for proper disposal, rather than being discarded on the ground or in an improper location.Type: GrantFiled: February 4, 2010Date of Patent: July 24, 2012Inventor: Christopher Zander
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Publication number: 20120177969Abstract: A battery module includes a plurality of battery cells aligned in one direction. First and second end plates are disposed outside of end ones of the battery cells, respectively. One or more connection members connect the first and second end plates to each other. In the battery module, one or more first alignment portions are provided on at least one side of the first and second end plates, and one or more second alignment portions corresponding to the one or more first alignment portions are provided to the connection member. Accordingly, it is possible to provide a battery module having enhanced reliability by improving the accuracy of assembling of battery cells members that constitute the battery module.Type: ApplicationFiled: October 5, 2011Publication date: July 12, 2012Inventor: Hee-Joon Jin
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Patent number: 8173294Abstract: A modular battery includes a housing, a first planar battery cell having a first planar electrode surface, a second planar battery cell having a second planar electrode surface, and an interconnector disposed between the first planar surface and the second planar surface and electrically connecting the first and second planar electrode surfaces, side peripheries of the interconnector, the first and second planar battery cells being electrically insulated from the housing. A method is also provided.Type: GrantFiled: December 31, 2009Date of Patent: May 8, 2012Assignee: Lightening EnergyInventors: Duncan Culver, Christopher K. Dyer, Michael L. Epstein
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Patent number: 8173293Abstract: A pouch type battery pack, including: a first pouch battery and a second pouch battery adjacent to the first pouch battery, wherein the first and second pouch batteries are combined by bonding an edge of the first pouch battery and an edge of the second pouch battery to each other. Accordingly, the bare cell can be separated without being damaged when the pouch battery is separated from the battery pack. Furthermore, the heat radiation performance is improved by including a heat radiation member between the two pouch batteries when the pouch batteries are stacked.Type: GrantFiled: April 8, 2008Date of Patent: May 8, 2012Assignee: Samsung SDI Co., Ltd.Inventor: Joongheon Kim
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Patent number: 8158278Abstract: A sealed rectangular battery excellent in volumetric efficiency and pressure resistance is provided. The sealed rectangular battery includes an electrode group having a positive electrode and a negative electrode and a cell casing for accommodating therein the electrode group and an electrolyte solution, which casing includes a rectangular frame member, a first lid member and a second lid member. Each of the first and second lid members includes a body portion for covering one of the openings of the frame member, and a side portion formed so as to protrude from the body portion substantially along at least one set of sides opposite to each other.Type: GrantFiled: October 5, 2010Date of Patent: April 17, 2012Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Kazuo Tsutsumi, Kazuya Nishimura
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Patent number: 8142921Abstract: A rechargeable battery having electrical stability includes an electrode assembly, a case, a cap assembly, and a spacer. The electrode assembly includes an anode, a cathode, and a separator interposed between the anode and the cathode. The case has an opening in which the electrode assembly is inserted and has a first thickness portion having a first thickness and a second thickness portion having a second thickness smaller than the first thickness. The cap assembly is coupled to the opening of the case and electrically connected to the electrode assembly. The spacer is fixed to an end of the case, and includes a supporting protrusion that engages with a portion of the case where the first thickness portion and the second thickness portion are connected to each other.Type: GrantFiled: May 23, 2008Date of Patent: March 27, 2012Assignee: Samsung SDI Co., Ltd.Inventor: Tae-Yong Kim
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Patent number: 8124270Abstract: A prismatic sealed rechargeable battery includes a substantially prismatic battery case that accommodates an electrode plate assembly and an electrolyte solution. The battery case is formed of metal. On a side face of the battery case, a thin plate is provided which has a plurality of protruding portions formed in parallel at appropriate intervals. The protruding portion and the side face form spaces opened at both ends therebetween. The thin plate is bonded to the side face of the battery case by making flat portions between the protruding portions into surface-contact with the side face, thereby improving cooling capability of the battery.Type: GrantFiled: February 7, 2007Date of Patent: February 28, 2012Assignees: Panasonic Corporation, Toyota Jidosha Kabushiki KaishaInventors: Takashi Asahina, Shinji Hamada, Toyohiko Eto
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Publication number: 20120040218Abstract: A single cell and a power battery pack comprising the same are provided. The single cell comprises: a shell; a cover board sealing an open end of the shell; an electrode core disposed inside the shell; an electrode terminal extending through the cover board, the electrode terminal comprising a first end portion connected with the electrode core inside the shell, a second end portion protruding outside the shell, and a middle portion between the first end portion and the second end portion; and an insulating member disposed between the electrode terminal and the cover board for insulating the electrode terminal; wherein each of the first end portion and the second end portion comprises a plurality of flexible conductive members.Type: ApplicationFiled: October 28, 2011Publication date: February 16, 2012Inventor: Weixin ZHENG
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Patent number: 8054041Abstract: A battery module is provided. The battery module includes a battery body having a plurality of unit cells arranged in series and having a respective barrier disposed between adjacent unit cells. End plates are disposed on opposite outermost sides of the battery body. A fixing unit fixes together the end plates and the battery body by enclosing an outer circumference of an assembly of the end plates and the battery body.Type: GrantFiled: November 24, 2010Date of Patent: November 8, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Tae-Yong Kim, Hong-Sup Lim
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Patent number: 7960052Abstract: A battery module is provided with a plurality of batteries (10) joined in a straight-line configuration, insulating caps (30) that insulate the series connected batteries (10), and connecting hardware (20, 40) disposed between connected batteries (10) that connect those batteries in series. The insulating cap (30) has an outer insulating region (31) that covers outer surfaces of adjacent batteries (10) connected in series. The connecting hardware (20, 40) has a first welding section (21, 41) that is welded to the end-plane electrode (19) of one battery, a second welding section (22, 42) that is disposed outside the first welding section and is welded to the end-plane electrode of another battery (10), and welding terminals (23, 43) that are disposed outside the outer insulating region (31) of the insulating cap (30) at battery outer surfaces in a manner insulated by the outer insulating region (31).Type: GrantFiled: June 25, 2008Date of Patent: June 14, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Yutaka Miyazaki, Taketoshi Yoshikane
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Publication number: 20110111282Abstract: A power storage apparatus includes a plurality of power storage elements aligned in one direction; and a pair of restraint members placed at both ends of the plurality of power storage elements in an alignment direction in which the elements are aligned, the restraint members configured to give a restraint force to the plurality of power storage elements. At least one restraint member of the pair of restraint members includes, a protruding portion protruding toward the power storage element adjacent to the restraint member, an end of the protruding portion being in contact with the adjacent power storage element to form a space between the restraint member and the adjacent power storage element; and a shield portion protruding in the alignment direction and preventing a heat exchange medium for use in temperature adjustment of the power storage element from entering into the space.Type: ApplicationFiled: July 12, 2010Publication date: May 12, 2011Inventors: Koichi Nagamine, Masahiro Mito, Tomotaka Osakabe
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Patent number: 7887947Abstract: The connection structure between unit cells connects a plurality of batteries B1 and B2 in series with bottomed cylindrical battery cases 2 and 5 which function as electrode terminals on one side, sealing plates 3 which close the opening portions of the battery cases 2 and 5 which function as electrode terminals on another side, and the first ring 1a with a flange is conductively connected at a bottom portion of a battery case 2 of one battery B1, the second ring 1b with a flange is conductively connected at an upper portion of the sealing plate 3 of another battery B2, and the first ring 1a and the second ring 1b are fitted.Type: GrantFiled: December 26, 2006Date of Patent: February 15, 2011Assignee: M&G Eco-Battery Co., Ltd.Inventors: Hiroshi Kawano, Isao Matsumoto, Keisuke Aoki, Yoshimitsu Hiroshima, Hiroshi Narusawa
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Patent number: 7883793Abstract: A battery module having battery cell assemblies with alignment-coupling features is provided. The battery module includes a first battery cell assembly having at least first, second, third and fourth alignment-coupling features thereon. The battery module further includes a second battery cell assembly having at least fifth, sixth, seventh, and eighth alignment-coupling features thereon. The fifth, sixth, seventh, and eighth alignment-coupling features of the second battery cell assembly are configured to engage the first, second, third and fourth alignment-coupling features, respectively, of the first battery cell assembly to couple the second battery cell assembly to the first battery cell assembly and to align the second battery cell assembly relative to the first battery cell assembly.Type: GrantFiled: June 30, 2008Date of Patent: February 8, 2011Assignee: LG Chem, Ltd.Inventors: Mark Niedzwiecki, Heekook Yang, Igor Isayev
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Patent number: 7879478Abstract: A battery module comprises: first and second rechargeable batteries, each of which includes a casing for storing an electrode assembly and a cap assembly provided on top of the casing; an interconnector provided between an upper portion of the first rechargeable battery and a lower portion of the second rechargeable battery so as to connect the first and second rechargeable batteries with each other; and an insulation cover which covers interconnected portions of the first and second rechargeable batteries, and which has at least one ventilation outlet.Type: GrantFiled: June 19, 2007Date of Patent: February 1, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Tae-Yong Kim, Sang-Won Byun
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Patent number: 7858224Abstract: A battery module is provided. The battery module includes a battery body having a plurality of unit cells arranged in series and having a respective barrier disposed between adjacent unit cells. End plates are disposed on opposite outermost sides of the battery body. A fixing unit fixes together the end plates and the battery body by enclosing an outer circumference of an assembly of the end plates and the battery body.Type: GrantFiled: September 1, 2006Date of Patent: December 28, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Tae-Yong Kim, Hong-Sup Lim
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Patent number: 7820322Abstract: Disclosed herein is a battery module for medium- or large-sized battery packs, including a plurality of unit cells, wherein the unit cells are generally plate-shaped unit cells, and the unit cells are electrically connected with each other while the unit cells are arranged in a module case so as to constitute at least two rows and at least two columns. According to the present invention, integration of the battery module is highly improved. Especially, the vertical-direction mechanical strength of the battery module is further increased, and the number of connecting members necessary for the electrical connection between the unit cells is reduced.Type: GrantFiled: June 14, 2006Date of Patent: October 26, 2010Assignee: LG Chem, Ltd.Inventors: Do Yang Jung, Heekook Yang, Yeo Won Yoon, John E. Namgoong
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Patent number: 7767334Abstract: A battery module is provided. The battery module includes a battery body having a plurality of unit cells arranged in series and having a respective barrier disposed between adjacent unit cells. End plates are disposed on opposite outermost sides of the battery body. A fixing unit fixes together the end plates and the battery body by enclosing an outer circumference of an assembly of the end plates and the battery body.Type: GrantFiled: September 1, 2006Date of Patent: August 3, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Tae-Yong Kim, Hong-Sup Lim
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Patent number: 7763994Abstract: A power source system (1) operable to supply a load circuit (10) with electrical power, including a power-supplying source (2) including a plurality of power source terminals (3) and (4) that differ in output voltage from one another, in which the power-supplying source is operable to supply the electrical power through the plurality of power source terminals (3) and (4), a power source terminal-selecting unit (5) operable to select either one of the plurality of power source terminals (3) and (4), a plurality of voltage converting units (6) and (7) connected to the power source terminal-selecting unit (5) and operable to convert electrical voltage, and a voltage converting unit-selecting unit (8) operable to select either one of the plurality of voltage converting units (6) and (7). The power source system provides the proper supply of the electrical power in accordance with a status of the load circuit (10).Type: GrantFiled: January 16, 2006Date of Patent: July 27, 2010Assignee: Panasonic CorporationInventor: Tomoyuki Inomoto
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Publication number: 20100075218Abstract: A battery unit includes a casing, bipolar batteries as a plurality of stacked type batteries housed in the casing, and a plug. The bipolar battery is formed by stacking a plurality of battery elements each having sheet electrodes on opposite sides of an electrolyte, and has collectors. The plug is detachably inserted between the bipolar batteries, and electrically connects bipolar batteries.Type: ApplicationFiled: March 7, 2008Publication date: March 25, 2010Inventors: Kazutaka Tatematsu, Ryoji Mizutani, Eiji Yamada, Yasuhiro Endo
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Patent number: 7678497Abstract: A battery including: a solid electrolyte film; and a plurality of unit cells formed thereon and connected in parallel. Each of the unit cells consists of: a positive electrode provided on one side of the solid electrolyte film; a negative electrode provided on the other side of the solid electrolyte film at a position opposite to the positive electrode; and a part of the solid electrolyte film sandwiched between the positive electrode and the negative electrode.Type: GrantFiled: December 16, 2004Date of Patent: March 16, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Hideaki Horie, Takamitsu Saito, Osamu Shimamura
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Patent number: 7662508Abstract: A secondary battery module includes at least more than two battery aggregates having a plurality of unit batteries continuously arranged, and a housing receiving the battery aggregates, wherein, with respect to the arrangement direction of the unit batteries, each of the unit batteries of each of the battery aggregates is disposed in an oblique direction against the arrangement direction of the unit batteries.Type: GrantFiled: November 28, 2005Date of Patent: February 16, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Gun-Goo Lee, Tae-Yong Kim, Yoon-Cheol Jeon
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Patent number: 7659029Abstract: A battery module has stacked therein a plurality of flat cells each formed by sealing a power generating element with a package member and deriving to the exterior electrode tabs from the package member and has the electrode tabs of the flat cells connected electrically. The battery module includes electrically insulated spacers adapted to nip the electrode tab from the opposite surface sides of the electrode tab along the stacking direction of the plurality of flat cells. The paired spacers nipping the electrode tab include an engaging member adapted to fasten the electrode tab by being passed through the electrode tab along the stacking direction.Type: GrantFiled: October 25, 2005Date of Patent: February 9, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Masayasu Ota, Ryuichi Amagai, Taisuke Isonaga, Etsuo Oogami
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Publication number: 20100021809Abstract: An energy storage device is provided including multiple back-to-back-disposed storage cells, from the first end of which the plus pole is made to emerge and from the other end of which the minus pole is made to emerge, thereby creating a series circuit of the storage cells. In order to reduce fabrication costs, it is proposed that each of the storage cells have a continuous opening between the plus pole and the minus pole, through which opening a guide rod extends that secures the back-to-back-disposed storage cells in this position.Type: ApplicationFiled: February 27, 2009Publication date: January 28, 2010Applicant: Bayerische Motoren Werke AktiengesellschaftInventors: Joachim FROESCHL, Markus KAINDL, Anton SCHUMANN
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Patent number: 7625665Abstract: A secondary battery module includes unit batteries arranged adjacent to each other in a battery group, the battery group having outermost surfaces. A first end-plate is disposed on one of the outermost surfaces, and a second end-plate disposed on another of the outermost surfaces. A connection rod is fixed to the first end-plate and the second end-plate through fastening members. A thickness of the first end-plate is smaller than a thickness of the first fastening member.Type: GrantFiled: November 14, 2005Date of Patent: December 1, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Yoon-Cheol Jeon, Tae-Yong Kim
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Patent number: 7550228Abstract: The car power source battery apparatus houses a plurality of battery modules in a holder case. Battery modules have batteries connected in a straight-line fashion, and boundary regions between batteries are covered with elastomer cylinders, which can flexibly deform. The outline of elastomer cylinder regions of a battery module is wider than the outline of battery regions not covered by elastomer cylinders. The holder case is divided into a first holder and a second holder to form holding compartments to retain battery modules. The inside shape of a holding compartment is a cylinder shape which is narrower than the outline of elastomer cylinder regions and wider than the outline of battery regions. Elastomer cylinder regions are resiliently compressed by holding compartment inside surfaces to hold battery modules, and cooling gaps are established between battery regions and holding compartment inside surfaces.Type: GrantFiled: July 22, 2005Date of Patent: June 23, 2009Assignee: Sanyo Electric Co., Ltd.Inventor: Ryosaku Izawa
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Patent number: 7454027Abstract: A hearing aid or headset for delivering a sound signal to the vicinity of the tympanic membrane includes at least a signal capture device, a signal processing unit, a receiver and an energy storage unit for storage and supply of electric energy, the energy storage unit including two or more sections which are interconnected in a manner which allows angulation of one section with respect to the neighboring section/sections.Type: GrantFiled: September 27, 2002Date of Patent: November 18, 2008Assignee: Oticon A/SInventor: Per Kokholm Sorensen
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Patent number: 7410724Abstract: A battery is fabricated on the basis of at least one of the following four concepts, i.e., lead terminals passing through a package not lower than the uppermost surface of an electrolyte cell, lead terminals projecting from a package in directions opposite to each other, a film package with a crushed portion expandable for accumulating gas and sheets of gas barrier sealant for keeping the boundaries between component parts of a package sealed; the seal is hardly broken so that the battery is durable and highly reliable.Type: GrantFiled: July 19, 2006Date of Patent: August 12, 2008Assignee: NEC CorporationInventors: Hiroshi Yageta, Makihiro Otohata, Nobuaki Yoshioka
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Publication number: 20080078594Abstract: A negative electrode active material contains a metal-displaced lithium-titanium oxide of a ramsdellite structure expressed by the formula Li(16/7)-xTi(24/7)-yMyO8 (where M is at least one metal element selected from the group consisting of Nb, Ta, Mo, and W, and x and y are respectively numbers in the range of 0<x<16/7 and 0<y<24/7).Type: ApplicationFiled: September 11, 2007Publication date: April 3, 2008Inventors: Yasuhiro HARADA, Norio Takami, Hiroki Inagaki, Tomokazu Morita
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Patent number: 7351496Abstract: A battery including an electrode unit which is an electricity generating element housed in a battery can, in which the electricity can be taken out of the can via a pair of negative and positive electrode terminals which are exposed outside the can, and one of the negative and positive electrode terminals has a coating layer formed on a surface thereof that is the same material as the material of which the other of the negative and positive electrode terminals is made.Type: GrantFiled: August 4, 2003Date of Patent: April 1, 2008Assignee: Sanyo Electric Co., Ltd.Inventors: Naoya Nakanishi, Kouichi Satoh, Atsuhiro Funahashi, Toshiyuki Nohma
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Patent number: 7291422Abstract: A battery is provided with a plurality of unit cells stacked in a stack direction, a plurality of conductive members each having an electric conductivity, and a plurality of insulation members each having an insulation property. The plurality of conductive members and the plurality of insulation members are alternately disposed in the stack direction with the plurality of unit cells having respective output terminals being sandwiched such that the plurality of unit cells are electrically connected in the stack direction.Type: GrantFiled: October 7, 2004Date of Patent: November 6, 2007Assignee: Nissan Motor Co., Ltd.Inventors: Etsuo Oogami, Ryuichi Amagai, Tadahiko Morigaki, Tsuyoshi Enokida
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Patent number: 7172832Abstract: A sealed battery (100) includes a power generation element (120), a battery case (110), and an external positive terminal (150) fixed to a first case wall (110a). Case side faces (110c, 110d) serve as external negative electrode portions providing an electrical connection to a negative electrode of the power generation element (120). The external positive terminal (150) has extended joint portions (155) extending in a direction perpendicular to the first case wall (110a). The extended joint portions (155) are laid to overlap from outside with and connected to the external negative electrode portions when the external positive terminal (150) of the sealed battery (100) is brought into contact with a second case wall (110b) of another sealed battery (100).Type: GrantFiled: September 14, 2005Date of Patent: February 6, 2007Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinji Hamada, Takashi Asahina, Toyohiko Eto
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Patent number: 7160643Abstract: A battery pack includes a plurality of batteries interlocked linearly through a connector. The connector includes an inner peripheral portion to be welded to one battery, and an outer peripheral portion, provided outside the inner peripheral portion, to be welded to the other battery. The inner peripheral portion and the outer peripheral portion have a step in between, and the step places the inner peripheral portion in a concave portion of the connector. The inner peripheral portion of the connector is located interiorly of a caulking convex strip provided at an end face of one battery, and an inner peripheral portion is connected to the battery end face through welding without coming in contact with the caulking convex strip. The outer peripheral portion is connected to an outer peripheral portion of a battery end face of the other battery through welding.Type: GrantFiled: January 27, 2003Date of Patent: January 9, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Kiyoshi Kunimoto, Shoichi Toya, Saburo Kouno, Yutaka Ueki
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Patent number: 7125628Abstract: A battery pack comprises a plurality of rectangular shaped batteries, wherein each of the plurality of rectangular shaped batteries is formed into a thin rectangular-parallelepiped shape, and wherein the plurality of rectangular shaped batteries are stacked side-by-side in a thickness direction, and a pair of pressurizing plates, wherein one of the pressurizing plates is located at each end of the stacked rectangular shaped batteries oriented in the thickness direction, wherein the pressurizing plates are elastically pushed against each other to pressurize the plurality rectangular shaped batteries.Type: GrantFiled: July 16, 2002Date of Patent: October 24, 2006Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Shuhei Marukawa, Ko Watanabe, Toyohiko Etoh, Keiji Shukuya, Shogo Yoneda
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Patent number: 7090945Abstract: A cell includes an electrode plate group which is formed by laminating a positive electrode plate and a negative electrode plate with a separator interposed between them, and includes leads protruding toward directions opposite to each other from one side of the positive electrode plate and the negative electrode plate, collectors which are joined to the leads on both sides of the electrode plate group, and include connection protrusions formed so as to protrude outside, and a bag-shape battery case containing the electrode plate group joined to the collectors such that only the connection protrusions of the collectors are protruded outside. A battery module is constituted by placing a plurality of the cells in a prismatic battery case while the connection protrusions of the collectors of the cells are connected with each other, thereby making the current-carrying path between the electrode plate groups straight and short and increasing the output.Type: GrantFiled: August 6, 2002Date of Patent: August 15, 2006Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Takashi Asahina, Shinsuke Fukuda, Shinji Hamada, Toyohiko Eto, Masato Onishi
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Patent number: 7074517Abstract: A plurality of cell units 10a made of stacked cells 10 are stacked. Pressing mechanisms 30 and 31, which apply a pressing force between a pair of pressuring members 20 arranged in a stack direction where the cell units 10a are stacked, are provided, and the cell units 10a are pressured in the stack direction. A state in which the cell units 10a are pressed by the pressing mechanisms 30 and 31 is managed by a managing member 32. Thus, a state where electrode plates of power generation elements 11 are pressed is maintained, and the pressed state of the power generation elements 11 can be precisely managed by the managing member 32.Type: GrantFiled: June 30, 2003Date of Patent: July 11, 2006Assignee: Nissan Motor Co., Ltd.Inventor: Tatsuya Higashino
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Patent number: 7056618Abstract: A plurality of projections for projection welding are formed respectively on the opposite sides of a connector. The electrode plate of the sealing member of one of two adjacent cells is bonded and connected by projection welding to a side of the connector by way of the projections, while the cell case of the other cell is bonded and connected by projection welding to the other side of the connector by way of the projections. In this way, a plurality of cells are connected in series.Type: GrantFiled: December 13, 2001Date of Patent: June 6, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Fujio Hirano, Akio Kujirai
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Patent number: RE43449Abstract: A battery is fabricated on the basis of at least one of the following four concepts, i.e., lead terminals passing through a package not lower than the uppermost surface of an electrolyte cell, lead terminals projecting from a package in directions opposite to each other, a film package with a crushed portion expandable for accumulating gas and sheets of gas barrier sealant for keeping the boundaries between component parts of a package sealed; the seal is hardly broken so that the battery is durable and highly reliable.Type: GrantFiled: August 12, 2010Date of Patent: June 5, 2012Assignee: NEC CorporationInventors: Hiroshi Yageta, Makihiro Otohata, Nobuaki Yoshioka