Having Conductive Receptacle Or Mechanical Locking Means For The Active Material Patents (Class 429/239)
  • Patent number: 9472803
    Abstract: The present invention relates to an electrode assembly comprising fiber-shaped structures. The electrode assembly for a battery according to one embodiment of the present invention comprises: a first electrode including a plurality of first fiber-shaped structures extending in a first direction; a second electrode including a plurality of second fiber-shaped structures which extend in a second direction other than the first direction, and the polarities of which are different from the polarities of the first structures; and a first separator film interposed between the first structures and the second structures which intersect with each other, so as to separate the first structures and the second structures from each other.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: October 18, 2016
    Assignee: JENAX INC.
    Inventor: Kwon Seok Kim
  • Patent number: 9419302
    Abstract: An electrode constituent member for a battery module includes a current-carrying member including an internal connection portion relative to a tab-shaped terminal of an electricity-storage cell, and an external connection portion exposed to an outside of the battery module; a fastener member for fastening a member electrically connecting electrodes of a plurality of battery modules to the external connection portion of the current-carrying member; and an insulating member positioned between the external connection portion of the current-carrying member and the electricity-storage cell. In an inner side of the external connection portion, clamp portions receiving the insulating member in between are formed. In the clamp portions and the insulating member, respectively, engagement portions, engaging with each other when the insulating member is received, are formed.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: August 16, 2016
    Assignees: NIFCO INC., NISSAN MOTOR CO., LTD.
    Inventors: Ryuhei Nishida, Tomoaki Nagayama, Hirotatsu Kamimura, Yuichi Yamauchi
  • Patent number: 9368800
    Abstract: A grid for a battery having a plurality of spaced apart vertically extending and horizontally extending grid wire elements with each grid wire element having opposed ends joined to one of a plurality of nodes to define a plurality of open spaces and with selected ones of the grid wire elements being joined at one of their ends to frame elements. Oppositely facing sides of the grid wire elements define first and second planes that are parallel to each other. Selected ones of the frame elements have an undulating cross section across the width thereof with an apex of the undulation on one side of the grid being tangential to or terminating at a third plane that is separate from and parallel to the first and second planes.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: June 14, 2016
    Assignee: Oak Press Solutions Inc.
    Inventors: Brian Harker, Kent Lancaster
  • Publication number: 20150050558
    Abstract: The invention relates to a current collector foil for batteries, accumulators or capacitors, comprising a carrier material and at least one electrically conductive layer made from a metal. Moreover, the invention relates to a method for producing a corresponding current collector foil as well as to the advantageous use thereof. The object of providing a current collector foil for batteries, accumulators or capacitors, which is optimised in relation to the contact surface and the adhesive properties and which results in an improved service life, is achieved as a result of the fact that the at least one electrically conductive layer is produced at least partially by electrodepositing a metal and has a texture.
    Type: Application
    Filed: October 29, 2014
    Publication date: February 19, 2015
    Applicant: HYDRO ALUMINIUM ROLLED PRODUCTS GMBH
    Inventors: Ulrich Hampel, Kathrin Eckhard, Simon Jupp, Andreas Siemen
  • Publication number: 20150024243
    Abstract: This electrode is provided with a thin metal sheet and an active substance layer containing, on the surface of the thin metal sheet, multiple active substance particles of a prescribed average particle diameter. The surface of the thin metal sheet includes a forming region where the active substance layer is located. In the forming region, the thin metal sheet has a depressed section in the surface. A portion of the active substance particles is present in at least a part of the depression, and the average distance between the centers of two neighboring particles of these active substance particles present in at least a part of the depression is 60-98% of the aforementioned average particle diameter.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 22, 2015
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Motoaki Okuda, Taichi Nakamizo, Kyoichi Kinoshita, Masami Tomioka
  • Publication number: 20150017500
    Abstract: The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a conductive layer formed on the electrode active material layer and comprising a conductive material and a binder; and a first porous supporting layer formed on the conductive layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.
    Type: Application
    Filed: September 4, 2014
    Publication date: January 15, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Publication number: 20140370349
    Abstract: The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; and a first porous supporting layer formed on the electrode active material layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surface thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.
    Type: Application
    Filed: August 29, 2014
    Publication date: December 18, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Patent number: 8722242
    Abstract: A magnesium battery, having an anode containing magnesium; a cathode stable to a voltage of at least 2.6 V relative to a magnesium reference; and an electrolyte containing an electrochemically active magnesium salt obtained by reaction of a Grignard reagent or Hauser base with a boron compound of formula BR3 is provided. The electrolyte is stable to 2.6 E.V. vs. Mg in the presence of stainless steel.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: May 13, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: John Muldoon, Claudiu Bogdan Bucur
  • Publication number: 20130323593
    Abstract: A rechargeable energy storage unit is proposed. The rechargeable energy storage unit has a first and a second electrode. The first electrode is assigned an energy storage material in the form of metal particles made from at least one metal which can be deoxidized during charging operation of the energy storage unit and can be oxidized during discharging operation of the energy storage unit. The metal particles are incorporated into a matrix-forming carrier material.
    Type: Application
    Filed: February 15, 2012
    Publication date: December 5, 2013
    Inventors: Ines Becker, Thomas Purucker
  • Patent number: 8524395
    Abstract: The present invention relates to nonaqueous electrolyte secondary batteries and durable anode materials and anodes for use in nonaqueous electrolyte secondary batteries. The present invention also relates to methods for producing these anode materials. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a displacement solution. The displacement solution contains ions of the metal to be deposited and a dissolution component for dissolving a part of the semiconductor in the anode material. When the anode material is contacted with the displacement solution, the dissolution component dissolves a part of the semiconductor in the anode material thereby providing electrons to reduce the metal ions and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: September 3, 2013
    Assignee: Enovix Corporation
    Inventors: Murali Ramasubramanian, Robert Spotnitz
  • Patent number: 8492027
    Abstract: The present invention provides an anode of a lithium secondary battery comprising a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a laminar structure without an opening, the active material layer has a network structure with an opening, and the shape of the opening in a planar view is a substantially regular polygon of pentagon or above and/or a substantial circle. The anode of the present invention can achieve charge-discharge-cycle property superior to that of the prior art.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: July 23, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Yoshihiro Uetani, Yuki Kajisa, Yasushi Tamura
  • Publication number: 20130183581
    Abstract: An improved substrate is disclosed for an electrode of an electrochemical cell. The improved substrate includes a core material surrounded by a coating. The coating is amorphous such that the coating includes substantially no grain boundaries. The core material may be one of lead, fiber glass, and titanium. The coating may be one of lead, lead-dioxide, titanium nitride, and titanium dioxide. Further, an intermediate adhesion promoter surrounds the core material to enhance adhesion between the coating and the core material.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 18, 2013
    Applicant: Energy Power Systems LLC
    Inventors: Subhash Dhar, Fabio Albano, Srinivasan Venkatesan, William Koetting, Lin Higley
  • Patent number: 8399134
    Abstract: A lead acid battery includes a housing and at least one cell disposed within the housing. Each cell includes at least one positive plate and at least one negative plate and an electrolyte disposed in a volume between the positive and negative plates. The at least one negative plate includes a current collector, consisting essentially of a layer of carbon foam disposed on a substrate, and a chemically active material disposed on the current collector.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: March 19, 2013
    Assignee: Firefly Energy, Inc.
    Inventors: Kurtis C. Kelley, Matthew J. Maroon
  • Patent number: 8373979
    Abstract: According to one embodiment, an electronic apparatus includes a first housing, a battery including a projection and configured to be attached to the first housing, a second housing including a display device and an end portion including a recess configured to correspond to the projection, a hinge configured to attach the second housing to the first housing rotatably between a first position in which a display screen of the display device is covered with the first housing and a second position in which the display screen is exposed, and a plurality of cables in the end portion of the second housing, the plurality of cables being arranged in a direction crossing a thickness direction of the second housing.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiro Hamada, Shingo Koide
  • Patent number: 8304112
    Abstract: The present invention discloses that the auxiliary electric conductor is additionally installed between the positive or negative electrode plates being installed at the edge inside the individual electrode cell having electrode plates and the electrode cell casing, and the insulator is further installed between the electrode plate and the auxiliary electric conductor thereby favoring currents of the current collecting terminals at multiple end sides of the electrode plates of the same polarity to be collected to the single end side current collecting terminal structure being used as the input/output interface terminal.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: November 6, 2012
    Inventor: Tai-Her Yang
  • Patent number: 8202653
    Abstract: An electrode includes a current collector comprising a grid, said grid comprising a plurality of planar, parallel rows disposed between interleaved rows having raised and lowered segments, and a tab portion extending from a side of the current collector. Raised and lowered segments are disposed horizontally relative to the tab portion, thereby providing substantially uninterrupted conductive ribbons extending from the bottom of the current collector to the tab portion.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: June 19, 2012
    Assignee: Axion Power International, Inc.
    Inventors: Edward R. Buiel, Joseph E. Cole
  • Patent number: 8182945
    Abstract: A current collector includes a substrate, a plurality of projections formed on a first portion of the substrate, and at least two adjacent minute projections formed on a second portion of the substrate. The substrate is a metal sheet. The first and second portions are formed on the surface of the substrate. The second portion includes 2 to 100 of minute projections. The minute projections have a height of below 35% of the average height of the plurality of projections. By forming an electrode active material layer on the face of the current collector where the plurality of projections are formed to make an electrode, the detachment of the electrode active material layer, and the spread of the detachment are significantly curbed.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: May 22, 2012
    Assignee: Panasonic Corporation
    Inventors: Yasutaka Kogetsu, Tatsuki Hiraoka, Takuhiro Nishimura
  • Patent number: 8133613
    Abstract: The present invention relates to nonaqueous electrolyte secondary batteries and durable anode materials and anodes for use in nonaqueous electrolyte secondary batteries. The present invention also relates to methods for producing these anode materials. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a displacement solution. The displacement solution contains ions of the metal to be deposited and a dissolution component for dissolving a part of the semiconductor in the anode material. When the anode material is contacted with the displacement solution, the dissolution component dissolves a part of the semiconductor in the anode material thereby providing electrons to reduce the metal ions and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: March 13, 2012
    Assignee: Enovix Corporation
    Inventors: Murali Ramasubramanian, Robert M. Spotnitz
  • Publication number: 20110250501
    Abstract: A lithium ion secondary having a high capacity in which decrease in the cycle characteristics is suppressed is provided by reducing cracks formed by repetition of charge and discharge.
    Type: Application
    Filed: September 27, 2010
    Publication date: October 13, 2011
    Inventors: Noriyuki Uchida, Noriaki Amo, Daisuke Suetsugu
  • Publication number: 20110129732
    Abstract: Embodiments of the invention contemplate forming an electrochemical device and device components, such as a battery cell or supercapacitor, using thin-film or layer deposition processes and other related methods for forming the same. In one embodiment, a battery bi-layer cell is provided. The battery bi-layer cell comprises an anode structure comprising a conductive collector substrate, a plurality of pockets formed on the conductive collector substrate by conductive microstructures comprising a plurality of columnar projections, and an anodically active powder deposited in and over the plurality of pockets, an insulative separator layer formed over the plurality of pockets, and a cathode structure joined over the insulative separator.
    Type: Application
    Filed: July 19, 2010
    Publication date: June 2, 2011
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Robert Z. Bachrach, Sergey D. Lopatin, Connie P. Wang, Donald J.K. Olgado
  • Patent number: 7879491
    Abstract: Disclosed herein are a stacking type electrode assembly constructed in a cathode/separator/anode structure, wherein the electrode assembly is provided at a predetermined region thereof with at least one through-hole, and a pair of holding members (a male coupling member and a female coupling member) constructed in a male-female coupling type structure is inserted through the through-hole inside a battery case, an outer surface of the female coupling member being brought into tight contact with the through-hole when the male coupling member is inserted into the female coupling member while the female coupling member having an outer diameter less than an inner diameter of the through-hole is inserted through the through-hole, and a secondary battery including the same.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: February 1, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Junill Yoon, Changjoo Han, Jongmoon Yoon
  • Patent number: 7790309
    Abstract: A battery pack includes a casing formed of an insulative material; a secondary battery disposed inside the casing; a control circuit-board disposed inside the casing and provided for charging and discharging the secondary battery; and a protection sheet formed of an insulative material and disposed inside the casing while being in contact with an outer surface of the secondary battery. The control circuit-board is disposed across from the secondary battery while the protection sheet is disposed therebetween. The external dimension of the protection sheet is greater than the external dimension of the control circuit-board.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: September 7, 2010
    Assignee: Sony Corporation
    Inventors: Satoshi Okachi, Tomoaki Watanabe
  • Publication number: 20100075219
    Abstract: In multilayer wholly solid lithium ion secondary batteries, a laminate having a collector layer of material with high conductivity superimposed on an active material layer has been disposed so as to attain a lowering of battery impedance. Consequently, in the fabrication of each of positive electrode layer and negative electrode layer, stacking of three layers consisting of an active material layer, a collector layer and an active material layer has been needed, thereby posing the problem of complex processing and high production cost. In the invention, a positive electrode layer and a negative electrode layer are fabricated from paste consisting of active material mixed with conductive substance in a given mixing ratio, and no collector layer is disposed. This realizes process simplification and manufacturing cost reduction without deterioration of battery performance and has also been effective in enhancing of battery performance, such as improvement to cycle characteristics.
    Type: Application
    Filed: February 16, 2007
    Publication date: March 25, 2010
    Applicant: NAMICS CORPORATION
    Inventors: Shoichi Iwaya, Hitoshi Masumura, Noriyuki Sakai, Takayuki Fujita, Hiroshi Sasagawa, Hiroshi Sato, Hisao Fukumori
  • Patent number: 7629084
    Abstract: A family of Li-ion battery cathode materials and methods of synthesizing the materials. The cathode material is a defective crystalline lithium transition metal phosphate of a specific chemical form. The material can be synthesized in air, eliminating the need for a furnace having an inert gas atmosphere. Excellent cycling behavior and charge/discharge rate capabilities are observed in batteries utilizing the cathode materials.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: December 8, 2009
    Assignee: Changs-Ascending Enterprise Co.
    Inventor: Chun-Chieh Chang
  • Patent number: 7416816
    Abstract: A battery providing a storage of electrical energy with electrolytic processes of charging and discharging, comprising a first vessel having a front wall formed as an electrode, a second vessel having a front wall formed as an electrode, the vessels being arranged so that the front walls formed as electrodes face one another, the vessels being filled with an electrolyte, the vessels having other walls which are composed of dielectric.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: August 26, 2008
    Inventor: Timofei Gutkin
  • Patent number: 7405020
    Abstract: An apparatus (1) for use of carbonized charcoal powder as an electrode is provided. Charcoal is provided as a powder, carbonized, and placed in a container (16) by which compressive pressure is applied to the carbonized-charcoal powder via one or more sides of the container (16). As a result of the compressive pressure the packed-bed (11) of carbonized-charcoal powder manifests a resistivity of less than about 1 ohm-cm and is suitable for use as an electrode in a fuel cell, battery or electrolyzer. The apparatus is adapted with electrical contacts (8, 9, 10) to conduct electric flow to or from the electrode and adapted for communication of an electrolyte with the electrode.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: July 29, 2008
    Assignee: University of Hawaii
    Inventor: Michael J. Antal, Jr.
  • Patent number: 7001691
    Abstract: An impermeable electrode for batteries, with an impermeable conductive layer of graphite, which is deposited from a suspension comprising graphite at a concentration between 1 and 50 g/l in an organic solvent on a substrate by immersion for a given length of time of, for example, approximately 10 to 60 seconds and wherein, after the deposition, the substrate with the layer of graphite is dried at a temperature between approximately 80 and 150° C. for a given length of time of, for example, approximately 1 minute and, after the drying, is heat-treated at a temperature between approximately 200 and 450° C. for a given length of time of, for example, approximately 5 to 60 minutes.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: February 21, 2006
    Assignee: Becromal S.p.A.
    Inventors: Giovanni Pietro Chiavarotti, Jean Constanti, Giuseppe Vono
  • Patent number: 6869728
    Abstract: Concave portions and convex portion are formed on a peripheral surface of a thin metal sheet by applying a pressing force thereto while the metal sheet is being embossed; pores are each formed on an apex of each of the concave portions and convex portions and burrs each projecting outward from a peripheral edge of each of the pores are generated by the pressing force, the metal sheets having the concave portions and convex portions formed thereon are layered on each other; the burr at the apex of each convex portion of a lower-layer metal sheet is interlocked with the burr at the apex of each concave portion of a upper-layer metal sheet adjacent to the lower-layer metal sheet to integrate the metal sheets with each other; and an active substance is charged into spaces between the upper-layer sheet and the lower-layer metal sheet through and aperture at the apex of each of the concave portions and convex portions.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: March 22, 2005
    Assignee: Katayama Special Industries, Ltd.
    Inventor: Hirofumi Sugikawa
  • Patent number: 6800399
    Abstract: An electrode substrate is formed by mechanically processing a nickel foil so as to be made three dimensional through the creation of concave and convex parts, and then, this substrate is filled with active material or the like so that an electrode is manufactured, wherein the above described concave and convex parts are rolling pressed so as to incline in one direction. Furthermore, an electrode for secondary battery is formed by using the above described method.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: October 5, 2004
    Inventor: Isao Matsumoto
  • Patent number: 6656640
    Abstract: The invention provides an electrode comprising a porous three-dimensional conductive support containing an electrochemically active material, said support having at least a first edge connected to a connection piece and at least a second edge substantially parallel to said first edge, and means for preventing said active material disposed along said second edge from moving. Said means is selected from: a piece having a U-shaped fold placed stride said second edge; a surface covering; and treatment to modify the texture of said support. The electrode is used as a positive electrode in a second electrochemical cell of the nickel metal hydride type.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: December 2, 2003
    Assignee: Alcatel
    Inventors: Olivier Amiel, Inés Belkhir, Jean-Pierre Freluche, Nathalie Pineau, Christian Dupuy, Stéphane Babin
  • Patent number: 6656232
    Abstract: An apparatus for manufacturing a battery electrode from foamed metal electrode material includes first and second rollers which are parallel to each other at a shaft center, and rotatable in directions opposite to each other, and a guide bar which is between the first and second rollers. A method for manufacturing a battery electrode includes supplying a foamed metal electrode material including voids, and having a filled portion filled with active material and an unfilled portion without the active material, and a boundary line between the filled and unfilled portions. Part of the unfilled portion is folded in parallel to the boundary line passing through the unfilled portion, and at right angle against the unfilled portion. A lead welding portion is formed along the direction of the longer side, by applying, to the unfilled bent portion, a force in the direction perpendicular to the filled portion in a way to crush the voids, and compress the bent portion.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: December 2, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Usui, Tsuneo Ando, Ikuo Katsumata, Hiroki Takeshima
  • Patent number: 6605388
    Abstract: In a first process, an electrically conductive thin metal plate 7 is subjected to a press molding process employing a plurality of punches 3 in a primary molding block 1 and a plurality of dies 4 in a secondary molding block 2, so as to form therein a plurality of hollow projections 9 that project from one side of the metal plate 7, and bulges 14 that bulge out in a direction opposite to that of the projections 9, positioned between the projections 9. In a second process, the metal plate 7 on which have been formed the plurality of projections 9 and bulges 14 is subjected to either chemical etching or electrolytic etching, so as to form through holes 17 by corrosively removing thin-walled portions 11 from the tips of the projections 9, and, at the same time, to corrosively form innumerable fine irregularities 18 over the entire surface of the metal plate 7.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: August 12, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Goda, Mamoru Iida, Takeo Takayanagi, Masahiko Ogawa, Yoshio Moriwaki, Saburo Nakatsuka
  • Patent number: 6472099
    Abstract: An alkaline cell having an anode comprising zinc and a cathode comprising manganese dioxide wherein the cathode is located annularly along the inside surface of the cell housing and has a plurality of indentations on the inside of its surface facing the cell interior. Each indentation has a wall defining a channel with an opening thereto running preferably in the direction of the cell's length. The channel and opening facing the cell interior filled with anode material. The cell can have an anode current collector, typically of metal, with at least a portion of its surface extending into the cathode indentation channel. The anode current collector can have a portion of its surface extending from a point within the anode and into the cathode indentation channel through said opening. The cell can include a cathode current collector comprising a sheet of conductive material such as a sheet of metal or graphite placed within the cathode, particularly within thick regions of the cathode.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 29, 2002
    Assignee: The Gillette Company
    Inventors: Tae-Won Lee, Shuming Zeng, Kenneth R. Taylor, George Cintra, Philip D. Trainer, Alexander B. Shelekhin
  • Patent number: 6421233
    Abstract: A pocket personal computer having improved battery compartment enclosing structures is disclosed. The battery compartment enclosing structures include a battery compartment defined in a rear side of the pocket personal computer for accommodating a battery therein, a battery compartment cap for enclosing the battery compartment and an unlocking means form unlocking the cap. The battery compartment has two positioning openings defined in a rear side wall of the compartment and a bulge inwardly formed on an inner face of a front side wall and the bulge has a slanted upper face and a flat lower face. The cap has two protrusions formed at a rear end thereof which can be received in the openings as the cap is positioned over the compartment and a latch downwardly formed at the front end of the cap and the latch has a slanted lower end and a depressed neck portion to cooperate with the bulge to lock the cap in position.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: July 16, 2002
    Assignee: High Tech Computer Corporation
    Inventor: Mi-Rong Hong
  • Publication number: 20020055037
    Abstract: An environmentally responsible and non-toxic alkaline cell, both catalytically and electrically rechargable, consisting of one or more iron anodes, as well as a zinc cathode, all immersed in an aquaous solution of potassium hydroxide in a plastic container. The cathodic material is cast zinc and is preferably wrapped in a special sheet of studded rubber provided with either a semi-perforated edge or a specially serrated edge on both sides to permit ionic communication between anodes and cathode. This rubber sheet should also be equipped with diagonal grooves on at least one side of the material. The anodes consist of thin, mild steel stampings, made to a special pattern, and are preferably blued to resist rust. The tips of these anodes are then coated with a paste prepared from one part 100 mesh iron powder to one part 100 mesh activated carbon powder. To form the paste, the powders are first thoroughly mixed dry and then properly wetted with distilled water.
    Type: Application
    Filed: April 29, 1999
    Publication date: May 9, 2002
    Inventor: KENNETH DALE RHOTEN
  • Patent number: 6338918
    Abstract: An electrode comprises a porous three-dimensional conductive support and at least one reinforcing metal band fixed along a longitudinal edge portion of the support and having a coefficient of elongation to rupture equal to at least 20% in a direction parallel to the edge portion of the support. Two longitudinal edge portions of the band are bent against the same face of the band, at least part of whose surface is pressed against the support.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: January 15, 2002
    Assignee: Alcatel
    Inventors: Georges Caillon, Rémi Najean, Christian Pineau, Christian Dupuy, Jérôme Mazalrey, Jean-Yves Kerybin
  • Patent number: 6306534
    Abstract: Disclosed are various types of metal-air FCB-based systems comprising a Metal-Fuel Transport Subsystem, a Metal-Fuel Discharging Subsystem, and a Metal-Fuel Recharging Subsystem. The function of the Metal-Fuel Transport Subsystem is to transport metal-fuel cards or sheets to the Metal-Fuel Discharge Subsystem, or the Metal-Fuel Recharge Subsystem, depending on the mode of the system selected. When transported to or through the Metal-Fuel Discharge Subsystem, each metal-fuel card is discharged by (i.e. electro-chemically reaction with) one or more discharging heads in order produce electrical power across an electrical load connected to the subsystem while H2O and O2 are consumed at the cathode-electrolyte interface during the electro-chemical reaction.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: October 23, 2001
    Assignee: Reveo, Inc.
    Inventors: Sadeg M. Faris, Tsepin Tsai
  • Patent number: 6291097
    Abstract: Disclosed herein is a battery design for bi-cell polymer matrix batteries. Each bi-cell comprises, sequentially, a first counter electrode, a first separator membrane, a centrally located electrode, a second separator membrane, and a second counter electrode. The current collector of each of the counter electrodes is positioned other than medially within the counter electrode. Generally, the current collector of the counter electrode is located within the outer half of the counter electrode. When the current collector is located at the extreme outer edge of the counter electrode, a capping film of polymer matrix material is preferably laminated to the perforated current collector, and, through the perforated current collector, to the counter electrode material itself.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: September 18, 2001
    Assignees: Valence Technology, Inc., Delphi Technologies, Inc.
    Inventors: Jeremy Barker, Wade Guindy, Howard Kisner, Porter Mitchell, Mohammad Parsian
  • Patent number: 6150056
    Abstract: Disclosed is an alkaline storage battery which exhibit exceptional charge/discharge and cycle life characteristics by improved current collection and active material retention of the electrode substrate. The electrode comprises a substrate composed of a conductive core material and fibrous nickel members unitary sintered on both surfaces of the conductive core material, and a layer of an active material filled into the substrate. The fibrous nickel members of the substrate are bent or curved at least at their tip ends inside the active material layer to retain the active material.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: November 21, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toru Inagaki, Hiroki Takeshima, Kazushige Sugimoto, Katsuhiro Okamoto
  • Patent number: 6132896
    Abstract: An electrochemical cell has a silver vanadium oxide cathode material formed into a pellet shape which expands as the cell is discharged. A cathode current collector circumferentially surrounds the cathode pellet and is in contact with the peripheral edge of the cathode pellet to prevent peripheral cathode expansion. The peripheral cathode current collector maintains a stable cell impedance during cell discharge. The cell has a D-shaped housing in which the cathode is disposed adjacent to a first interior surface, and a lithium anode is disposed adjacent to a second interior surface.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: October 17, 2000
    Assignee: Medtronics, Inc.
    Inventors: Walter C. Sunderland, Anthony W. Rorvick, Donald R. Merritt, Craig L. Schmidt, David P. Haas
  • Patent number: 5554710
    Abstract: A conductive polymer comprises a silicon-containing polymer having, in the main chain thereof, Si--Si bonds or both Si--Si bonds and C--C multiple bonds, and ferric chloride doped in said polymer through vapor phase doping. A method for preparing such a conductive polymer is also described.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: September 10, 1996
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shigeru Mori, Motoo Fukushima, Eiichi Tabei, Yoshitaka Hamada, Seizi Katayama
  • Patent number: 5434020
    Abstract: An electrochemical cell providing full consumption of electrochemically active particles in a nonpacking, electrolyte-permeable bed has a tapered cell cavity bounded by two nonparallel surfaces separated by a distance that promotes bridging of particles across the cavity. The gap/particle size ratio is maintained as the particles are consumed, decrease in size, and travel from the point of entry to the narrower end of the cell. A cell of this configuration supports a bed of low packing density maintained in a dynamic steady state by alternate formation and collapse of particle bridges across the gap and associated voids over the entire active area of the cell. The cell design can be applied to refuelable zinc/air cells and zinc/ferrocyanide storage batteries.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: July 18, 1995
    Assignee: The Regents of the University of California
    Inventor: John F. Cooper
  • Patent number: 4749635
    Abstract: In this plate electrode for use in alkaline electrochemical elements or disposable batteries and accumulators, the cover-walls are formed by two metal fabric pieces (1, 2) of plate size. A netting (3), made of thermoplastic material, is located in between. The netting apertures form squares (7) for receiving the active composition (6). In production, the plate, constructed in this way, is compressed over the whole surface under the influence of heat, so that the metal fabric pieces are fused into the plastic netting. The active composition is compressed at the same time. The metal fabrics consist of uniform wire material, especially of nickel. In comparison with conventional pocket plates comprising pockets produced or assembled from perforated metal sheet, the present plate electrode possesses advantages with respect to its quality features and production costs.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: June 7, 1988
    Inventors: Max Muller, Heinz Kolling
  • Patent number: 4618549
    Abstract: An electrode for a lead acid battery, comprising a frame of an acid resistant plastic material which holds a current grid and active material covered by a porous previous web or the like, characterized in that the electrode comprises two or more portions, each one constituting a frame portion of plastic material having a grid and surrounding active material disposed in shallow troughs and covered by a web or the like on one side thereof, and adapted to be put together with a similar frame portion, back to back, so as to jointly form the electrode.
    Type: Grant
    Filed: September 12, 1984
    Date of Patent: October 21, 1986
    Inventor: Ove K. G. Nilsson
  • Patent number: 4316945
    Abstract: A mass plate electrode comprises a tablet of active material in a container of nickel gauze. The container consists of a cup and a lid which are joined by overlapping peripheral closure portions which are pressed into abutting attachment with each other to form an annular rim which is then bent over so as to embrace the side-wall portion of the cup.Prior to bending the rim over, the abutting closure portions of the cup and the lid are subjected to planishing or swaging to reduce the combined thickness of the two abutting closure portions by one half.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: February 23, 1982
    Assignee: Varta Limited
    Inventors: Douglas H. Marcham, Kenneth A. Reichter
  • Patent number: 4283470
    Abstract: An anode structure for a cylindrical primary electrochemical cell. The anode structure in accordance with the invention includes a thin, circular, lithium metal disc having a central opening therein, and a small, thin, resilient, metal (e.g., nickel) contact member secured to the lithium disc. The metal contact member is of a generally circular configuration and has a flat central portion with a circular opening therein aligned with the opening in the lithium disc. The contact member has a plurality of tab portions extending outwardly from, and spaced at regular intervals about, its outer periphery, and a pair of spikes or barbs depending from opposed ends of each tab portion. The spikes are pressed into the soft lithium disc at points spaced from the opening therein for permanently securing the contact member to the disc.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: August 11, 1981
    Assignee: GTE Products Corporation
    Inventors: Roger K. Freeman, Franz Goebel
  • Patent number: 4087596
    Abstract: The positive electrode for an air/zinc element is a depolarizer mass attached to a perforated plastic carrier with interposition of a conductive foil and a metal foil take-off conductor, both also perforated. The perforations in the plastic carrier are in the form of hollow rivets extending toward the foils, the foils are engaged by their own perforations concentrically upon said rivets, and the rivets have outwardly protruding collars extending over the foils, whereby the foils are attached and all perforations are aligned.
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: May 2, 1978
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Hans Sauer, Wolfgang Kloss