Lead Oxide Patents (Class 429/228)
  • Publication number: 20120115031
    Abstract: A paste suitable for a negative plate of a lead-acid battery comprises lead oxide and composite particles comprising carbon and silica.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 10, 2012
    Applicant: CABOT CORPORATION
    Inventors: Paolina ATANASSOVA, Berislav BLIZANAC, Toivo KODAS, Mark HAMPDEN-SMITH, Miodrag OLJACA
  • Patent number: 8101299
    Abstract: A method for producing, maturing and drying negative and positive plates for lead accumulators during which, in a pasting step, the plates are manufactured by introducing lead paste serving as an active material into an electrode support. The plates are directly placed one atop the other in stacks; the plates are matured at temperatures higher than 70° C.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: January 24, 2012
    Assignee: Bernd Muenstermann GmbH & Co. KG
    Inventors: Werner Nitsche, Uwe Schwinhorst
  • Publication number: 20110294008
    Abstract: A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).
    Type: Application
    Filed: July 19, 2011
    Publication date: December 1, 2011
    Inventors: Edgar Lara-Curzio, Ke An, James O. Kiggans, JR., Nancy J. Dudney, Cristian I. Contescu, Frederick S. Baker, Beth L. Armstrong
  • Publication number: 20110281157
    Abstract: An electrode material is created by forming a thin conformal coating of metal oxide on a highly porous carbon meta-structure. The highly porous carbon meta-structure performs a role in the synthesis of the oxide coating and in providing a three-dimensional, electronically conductive substrate supporting the thin coating of metal oxide. The metal oxide includes one or more metal oxides. The electrode material, a process for producing said electrode material, an electrochemical capacitor and an electrochemical secondary (rechargeable) battery using said electrode material is disclosed.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 17, 2011
    Inventor: Fraser W. SEYMOUR
  • Patent number: 8021784
    Abstract: A battery paste composition incorporates and promotes the formation of tetra basic lead sulfate using a micronized TTBLS additive, and eliminates free lead using a special oxide, during paste mixing and drying. Battery plates utilizing the disclosed battery paste composition are produced without the need for curing, and instead can be used in the battery immediately following plate drying.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: September 20, 2011
    Assignee: Hammond Group, Inc.
    Inventor: David Paul Boden
  • Patent number: 7993779
    Abstract: A carbon foam battery useful for electrical applications is disclosed which includes a relatively low conductivity low density high porosity carbon foam.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: August 9, 2011
    Assignee: GrafTech International Holdings Inc.
    Inventor: Diane M. Artman
  • Patent number: 7981818
    Abstract: A multilayer composite sheet for use in a lead-acid battery includes a) a base layer including paper or a glass fiber mat; b) a layer of polymeric nanofibers bonded with discrete adhesive particles to a first surface of the base layer; and c) a scrim layer bonded with discrete adhesive particles to a surface of the layer of nanofibers opposite the base layer. A plate assembly for a lead-acid battery includes one or more multilayer composite sheets located adjacent or partially enclosing a lead plate.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: July 19, 2011
    Assignee: P. H. Glatfelter Company
    Inventor: William N. Justice
  • Publication number: 20110159376
    Abstract: Provided is an anode for use in electrochemical cells, wherein the anode active layer has a first layer comprising lithium metal and a multi-layer structure comprising single ion conducting layers and polymer layers in contact with the first layer comprising lithium metal or in contact with an intermediate protective layer, such as a temporary protective metal layer, on the surface of the lithium-containing first layer. Another aspect of the invention provides an anode active layer formed by the in-situ deposition of lithium vapor and a reactive gas. The anodes of the current invention are particularly useful in electrochemical cells comprising sulfur-containing cathode active materials, such as elemental sulfur.
    Type: Application
    Filed: March 3, 2011
    Publication date: June 30, 2011
    Applicant: Sion Power Corporation
    Inventors: Terje A. Skotheim, Christopher J. Sheehan, Yuriy V. Mikhaylik, John D. Affinito
  • Patent number: 7943256
    Abstract: A method for producing at least one lead battery electrode, comprising the step of disposing an active paste on a support in such a manner as to form said electrode, and locating said electrode in a controlled atmosphere environment to expose said electrode to a gas enriched in ozone, characterised in that said electrode is exposed to an ozone-enriched gas of flow rate less than 100 liters per hour for each square meter of surface of said electrode.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: May 17, 2011
    Assignees: P.C. Di Pompeo Catelli, Oerlikon Stationar-Batterien AG Aesch BL
    Inventors: Cesare Catelli, Pascal Häring
  • Patent number: 7923151
    Abstract: A lead-acid battery comprising: at least one lead-based negative electrode; at least one lead dioxide-based positive electrode; at least one capacitor electrode; and electrolyte in contact with the electrodes; wherein a battery part is formed by the lead based negative electrode and the lead dioxide-based positive electrode; and an asymmetric capacitor part is formed by the capacitor electrode and one electrode selected from the lead based negative electrode and the lead-dioxide based positive electrode; and wherein all negative electrodes are connected to a negative busbar, and all positive electrodes are connected to a positive busbar. The capacitor electrode may be a capacitor negative electrode comprising carbon and an additive mixture selected from oxides, hydroxides or sulfates of lead, zinc, cadmium, silver and bismuth, or a capacitor negative electrode comprising carbon, red lead, antimony in oxide, hydroxide or sulfate form, and optionally other additives.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: April 12, 2011
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Lan Trieu Lam, Nigel Peter Haigh, Christopher G Phyland, David Anthony James Rand
  • Publication number: 20110027654
    Abstract: A carbon foam battery useful for electrical applications is disclosed which includes a relatively low conductivity low density high porosity carbon foam.
    Type: Application
    Filed: October 18, 2010
    Publication date: February 3, 2011
    Applicant: GrafTech International Holdings Inc.
    Inventor: Diane M. Artman
  • Patent number: 7862931
    Abstract: Provided is a lead-based alloy for a lead-acid battery, comprising not less than 0.02% and less than 0.05% by weight of calcium, not less than 0.4% and not more than 2.5% by weight of tin, not less than 0.005% and not more than 0.04% by weight of aluminum, not less than 0.002% and not more than 0.014% by weight of barium, and the balance of lead and unavoidable impurities.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: January 4, 2011
    Assignees: The Furukawa Battery Co., Ltd., Toho Zinc Co., Ltd.
    Inventors: Jun Furukawa, Yasuyuki Nehyo, Yutaka Mori, Tomohiro Hiraki
  • Patent number: 7838146
    Abstract: A carbon foam battery useful for electrical applications is disclosed which includes a relatively low conductivity low density high porosity carbon foam.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: November 23, 2010
    Assignee: GrafTech International Holdings, Inc.
    Inventor: Diane M. Artman
  • Patent number: 7816034
    Abstract: A method of forming battery electrodes with high specific surface and thin layers of active material is disclosed. The method enables low series resistance and high battery power.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: October 19, 2010
    Inventors: Donald L. McGervey, Paul T. Szozdowski, Gerhard E. Welsch
  • Patent number: 7785561
    Abstract: A process for producing high purity lead oxide from impure lead compounds particularly from waste lead battery paste which includes an oxidation-reduction step. The process results in a reduction of impure lead compounds to the +2 valence state and metal particle contaminants are oxidized to the +2 state.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 31, 2010
    Assignees: Toxco. Inc, Kinsbursky Brothers, Inc.
    Inventors: W. Novis Smith, Steven A. Kinsbursky
  • Publication number: 20100173198
    Abstract: The present invention provides a lithium ion battery that exhibits a significantly improved specific capacity and much longer charge-discharge cycle life. In one preferred embodiment, the battery comprises an anode active material that has been prelithiated and pre-pulverized. This anode may be prepared with a method that comprises (a) providing an anode active material (preferably in the form of fine powder or thin film); (b) intercalating or absorbing a desired amount of lithium into the anode active material to produce a prelithiated anode active material; (c) comminuting the prelithiated anode active material into fine particles with an average size less than 10 ?m (preferably <1 ?m and most preferably <200 nm); and (d) combining multiple fine particles of the prelithiated anode active material with a conductive additive and/or a binder material to form the anode. Preferably, the prelithiated particles are protected by a lithium ion-conducting matrix or coating material.
    Type: Application
    Filed: January 2, 2009
    Publication date: July 8, 2010
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 7722987
    Abstract: A battery having a housing assembled from multiple parts, of which one housing part is implemented like a vessel having an initially open front side and the other housing part is a closure part, which closes the vessel-like housing part on its initially open front side, and having at least one first and at least one second electrode, each of which is formed by a planar material, of which the first electrode is electrically connected to an electrically conductive housing part of the battery, while the second electrode is electrically connected to an electrically conductive contact, which is electrically insulated from the remaining housing, the battery comprising a molded part which is provided with at least one first recess for receiving and positioning at least one section of the first electrode or the first electrodes at a time.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: May 25, 2010
    Assignee: Biotronik CRM Patent AG
    Inventors: Juergen Drews, Steffen Hickmann, Roland Staub
  • Publication number: 20100035156
    Abstract: An electrode plate (44) for a lead-acid battery (10) is disclosed. The electrode plate includes a current-collecting first layer (48). In addition, the electrode plate also includes a second layer (50) comprising flexible graphite sheeting (52) and configured to distribute thermal energy within the electrode plate. Further, the electrode plate includes a third layer (48, 62), wherein the second layer is disposed between the current-collecting first layer and the third layer.
    Type: Application
    Filed: January 11, 2008
    Publication date: February 11, 2010
    Inventor: Kurtis C. Kelley
  • Publication number: 20090325064
    Abstract: Provided are an electrode assembly and a secondary battery having the same. The electrode assembly includes a positive electrode including a positive electrode active material layer, a negative electrode including a negative electrode active material layer, and a separator for separating the positive and negative electrodes from each other. The negative electrode active material layer includes a metal capable of alloying with lithium or lithium vanadium oxide (LiV3O5), the separator includes a porous layer formed by combining a ceramic material with a binder, and the content of the binder is from about 5 to about 15 wt % with respect to 100 wt % of the porous layer.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 31, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventor: Young-Churl Chang
  • Publication number: 20090317710
    Abstract: A process for producing lightweight materials for a battery comprises lightweight polymer substrate coated with dispersions of nano particles, conductive matrixes and active material.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 24, 2009
    Applicant: MysticMD, Inc.
    Inventors: Joel S. Douglas, Thomas Barbarich
  • Publication number: 20090305135
    Abstract: This invention provides a nanocomposite-based lithium battery electrode comprising: (a) A porous aggregate of electrically conductive nano-filaments that are substantially interconnected, intersected, physically contacted, or chemically bonded to form a three-dimensional network of electron-conducting paths, wherein the nano-filaments have a diameter or thickness less than 1 ?m (preferably less than 500 nm); and (b) Sub-micron or nanometer-scale electro-active particles that are bonded to a surface of the nano-filaments with a conductive binder material, wherein the particles comprise an electro-active material capable of absorbing and desorbing lithium ions and wherein the electro-active material content is no less than 25% by weight based on the total weight of the particles, the binder material, and the filaments. Preferably, these electro-active particles are coated with a thin carbon layer. This electrode can be an anode or a cathode.
    Type: Application
    Filed: June 4, 2008
    Publication date: December 10, 2009
    Inventors: Jinjun Shi, Aruna Zhamu, Bor Z. Jang
  • Publication number: 20090220858
    Abstract: Described is a composite lithium compound having a mixed crystalline structure. Such compound was formed by heating a lithium compound and a metal compound together. The resulting mixed metal crystal exhibits superior electrical property and is a better cathode material for lithium secondary batteries.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 3, 2009
    Applicant: BYD COMPANY LIMITED
    Inventors: Tangli Cheng, Long He, Zhanfeng Jiang, Ye Tian, Junfeng Liu
  • Publication number: 20090186276
    Abstract: This invention provides a hybrid nano-filament composition for use as a cathode active material. The composition comprises (a) an aggregate of nanometer-scaled, electrically conductive filaments that are substantially interconnected, intersected, or percolated to form a porous, electrically conductive filament network, wherein the filaments have a length and a diameter or thickness with the diameter or thickness being less than 500 nm; and (b) micron- or nanometer-scaled coating that is deposited on a surface of the filaments, wherein the coating comprises a cathode active material capable of absorbing and desorbing lithium ions and the coating has a thickness less than 10 ?m, preferably less than 1 ?m and more preferably less than 500 nm. Also provided is a lithium metal battery or lithium ion battery that comprises such a cathode. Preferably, the battery includes an anode that is manufactured according to a similar hybrid nano filament approach.
    Type: Application
    Filed: January 18, 2008
    Publication date: July 23, 2009
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Publication number: 20090181312
    Abstract: A rechargeable battery is provided such that the positive electrode comprises lead dioxide, the negative electrode comprises at least one alloy, and the electrolyte is alkaline. Upon discharge, the lead dioxide is reduced to lead oxide, and the electrolyte remains unchanged. The alloy of the negative electrode can be a metal hydride. The reactions are reversed when the battery is charged.
    Type: Application
    Filed: March 25, 2009
    Publication date: July 16, 2009
    Inventor: John E. Stauffer
  • Publication number: 20090169996
    Abstract: This invention provides a hybrid nano-filament composition for use as an electrochemical cell electrode. The composition comprises: (a) an aggregate of nanometer-scaled, electrically conductive filaments that are substantially interconnected, intersected, or percolated to form a porous, electrically conductive filament network comprising substantially interconnected pores, wherein the filaments have an elongate dimension and a first transverse dimension with the first transverse dimension being less than 500 nm (preferably less than 100 nm) and an aspect ratio of the elongate dimension to the first transverse dimension greater than 10; and (b) micron- or nanometer-scaled coating that is deposited on a surface of the filaments, wherein the coating comprises an anode active material capable of absorbing and desorbing lithium ions and the coating has a thickness less than 20 ?m (preferably less than 1 ?m). Also provided is a lithium ion battery comprising such an electrode as an anode.
    Type: Application
    Filed: January 2, 2008
    Publication date: July 2, 2009
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 7550131
    Abstract: A solid state reaction method for the production of tetrabasic lead sulfate includes the steps of mixing a stoichiometric mixture of 5PbO and H2SO4 and heating the stoichiometric mixture of 5PbO and H2SO4 at a temperature between 500 and 700° C. for 3 to 8 hours. The method also includes the steps of deagglomerating and sieving resulting tetrabasic lead sulfate.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: June 23, 2009
    Assignee: GES Technologies IP GmbH
    Inventors: Ricardo Flores-Lira, Sanjuana Garza-de La Garza
  • Publication number: 20090142670
    Abstract: Disclosed is an electrolytic solution including an organic solvent, a lithium salt, and an additive. The additive includes maleimide compound and vinylene carbonate. The maleimide compound can be maleimide, bismaleimide, polymaleimide, polybismaleimide, maleimide-bismaleimide copolymer, or combinations thereof. The lithium battery employing the described electrolytic solution has a higher capacity of confirmation, higher cycle efficiency, and longer operational lifespan.
    Type: Application
    Filed: February 25, 2008
    Publication date: June 4, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Fu-Ming Wang, Chang-Rung Yang, Jing-Pin Pan, Hung-Chun Wu
  • Patent number: 7541113
    Abstract: An electrode for a bipolar cell or battery comprises a plate like body made of hardened resin containing particles of titanium suboxide or other electrically conductive particulate arranged to form electrical paths. A method of testing the body for porosity is also disclosed.
    Type: Grant
    Filed: January 21, 2002
    Date of Patent: June 2, 2009
    Assignee: Atraverda Limited
    Inventor: Thomas John Partington
  • Publication number: 20090123839
    Abstract: A positive electrode for a lithium-ion secondary battery includes a positive-electrode mixture layer, which includes a positive-electrode active material containing lithium composite oxide, a conductive material, and a binder, and a current collector. The positive-electrode mixture layer contains a compound including sulfur and/or phosphorous, a first polymer serving as a main binder, and a second polymer different from the first polymer.
    Type: Application
    Filed: November 3, 2008
    Publication date: May 14, 2009
    Applicant: SONY CORPORATION
    Inventors: Masanori Soma, Kenichi Kawase, Masayuki Ihara, Atsumichi Kawashima, Kazumi Izumitani
  • Publication number: 20090042101
    Abstract: A method of forming battery electrodes with high specific surface and thin layers of active material is disclosed. The method enables low series resistance and high battery power.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Inventors: Donald L. McGervey, Paul T. Szozdowski, Gerhard E. Welsch
  • Patent number: 7459140
    Abstract: A solid state reaction method for the production of tetrabasic lead sulfate includes the steps of mixing a stoichiometric mixture of 4PbO and PbCO3 and H2SO4 and heating the stoichiometric mixture of 4PbO and PbCO3 and H2SO4 at a temperature between 500 and 700° C. for 3 to 8 hours. The method also includes the steps of deagglomerating and sieving resulting tetrabasic lead sulfate.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: December 2, 2008
    Assignee: GES Technologies IP GmbH
    Inventors: Ricardo Flores-Lira, Sanjuana Garza-de La Garza
  • Publication number: 20080145757
    Abstract: Provided are a porous anode active material, a method of preparing the same, and an anode and a lithium battery employing the same. The porous anode active material includes fine particles of metallic substance capable of forming a lithium alloy; a crystalline carboneous substance; and a porous carboneous material coating and attaching to the fine particles of metallic substance and the crystalline carboneous substance, the porous anode active material having pores exhibiting a bimodal size distribution with two pore diameter peaks as measured by a Barrett-Joyner-Halenda (BJH) pore size distribution from a nitrogen adsorption. The porous anode active material has the pores having a bimodal size distribution, and thus may efficiently remove a stress occurring due to a difference of expansion between a carboneous material and a metallic active material during charging and discharging.
    Type: Application
    Filed: July 27, 2007
    Publication date: June 19, 2008
    Inventors: Sang-kook Mah, Han-su Kim, Dong-min Im
  • Publication number: 20080113268
    Abstract: A hybrid energy storage device has at least one lead-based positive electrode and at least one carbon-based negative electrode, a separator between the electrodes, a casing which will contain the electrodes and separator, and an acid electrolyte. The separator is gas permeable, and is capable of absorbing and entraining acid electrolyte. The separator has a finite capacity for absorption of acid electrolyte, and the quantity of acid electrolyte which is present in the cell is less than the finite capacity of the separator. Upon assembly of the cell, the casing is sealed, and there is no liquid acid electrolyte within the assembled cell.
    Type: Application
    Filed: October 22, 2007
    Publication date: May 15, 2008
    Inventors: Edward R. Buiel, Victor Eshkenazi, Leonid Rabinovich, Wei Sun, Vladimir Vichnyakov, Adam J. Swiecki, Joseph E. Cole
  • Patent number: 7309478
    Abstract: A solid state reaction method for the production of tetrabasic lead sulfate includes the steps of mixing a stoichiometric mixture of 3PbO.PbSO4.H2O and PbO and heating the stoichiometric mixture of 3PbO.PbSO4.H2O and PbO at a temperature between 500 and 700° C. for 3 to 8 hours. The method also includes the steps of deagglomerating and sieving resulting tetrabasic lead sulfate.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: December 18, 2007
    Assignee: GES Technologies IP GmbH
    Inventors: Ricardo Flores-Lira, Sanjuana Garza-de La Garza
  • Patent number: 7118830
    Abstract: A battery paste additive, and process for making the same comprising micronized seed crystals of tetra basic lead sulfate, is added to battery paste and results in accelerated curing time and other improvements in battery performance. The battery paste additive may be used to produce positive or negative battery plates and may be use with conventional mixing, pasting and curing processes and equipment.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: October 10, 2006
    Assignee: Hammond Group, Inc.
    Inventors: David Paul Boden, Benjamin Paul Labovitz
  • Patent number: 7105252
    Abstract: A method for forming a corrosion resistant electrode for a battery includes supplying an electrode for use in the battery and exposing the electrode to an environment including vaporized carbon. At least some of the carbon from the environment may be transferred to the electrode.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: September 12, 2006
    Assignee: Firefly Energy, Inc.
    Inventors: Kurtis C. Kelley, Steven C. Taylor
  • Patent number: 7060391
    Abstract: A battery, a battery electrode structure, and methods to make the same. The product and method comprise applying a layer of lead-tin containing alloy to substrates for anodes or cathodes for lead-acid batteries, in which the substrates are porous or reticulated.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: June 13, 2006
    Assignee: Power Technology, Inc.
    Inventors: Elod Gyenge, Joey Jung, Alvin A. Snaper
  • Patent number: 7011805
    Abstract: The production of tetrabasic lead sulfate by means of solid state reactions at high temperatures allow the formation of powders having a particle size of less than 10 ?m. In the methods the chemical reaction that takes place between lead oxide and different sulfated compounds occurs in a single high temperature treatment. The sulfated compounds used in the present invention to produce the tetrabasic lead sulfate are: PbSO4, 3PbO.PbSO4.H2O, H2SO4 and (NH4)2SO4. There are lead-acid battery pastes produced using the tetrabasic lead sulfate made, the lead-acid battery plates made with the pastes, and the lead-acid batteries subsequently made with the plates.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: March 14, 2006
    Assignee: GES Technologies IP GmbH
    Inventors: Ricardo Flores-Lira, Sanjuana Garza-De La Garza
  • Patent number: 6979512
    Abstract: A battery is provided having cells, which cells contain an electrolyte and a colloid, with there being at least one connector between directly adjacent cells, with each cell being formed of at least one pair of component sections, with each of the component sections in the pair being separated by a filter. The filter has apertures formed therein. The filter has two sides with a channel formed connecting apertures on opposite sides of the filter. When the battery discharges, the battery will flush the filter. Each of the component sections of the battery is a half-cell. In the preferred embodiment of the invention the colloid is PbO2.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: December 27, 2005
    Inventor: Edward D. Phillips
  • Patent number: 6949313
    Abstract: Microthin sheet technology is disclosed by which superior batteries are constructed which, among other things, accommodate the requirements for high load rapid discharge and recharge, mandated by electric vehicle criteria. The microthin sheet technology has process and article overtones and can be used to form thin electrodes used in batteries of various kinds and types, such as spirally-wound batteries, bipolar batteries, lead acid batteries silver/zinc batteries, and others. Superior high performance battery features include: (a) minimal ionic resistance; (b) minimal electronic resistance; (c) minimal polarization resistance to both charging and discharging; (d) improved current accessibility to active material of the electrodes; (e) a high surface area to volume ratio; (f) high electrode porosity (microporosity); (g) longer life cycle; (h) superior discharge/recharge characteristics; (i) higher capacities (A·hr); and (j) high specific capacitance.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: September 27, 2005
    Assignee: BioPolar Technologies Corporation
    Inventor: Rodney M. LaFollette
  • Patent number: 6833216
    Abstract: A method of manufacturing a sulfated paste for use in a lead acid battery cell comprises introducing sulfuric acid to an oxide of lead and subsequently introducing a tin-containing material.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: December 21, 2004
    Assignee: GP Batteries International, Ltd.
    Inventors: Shawn W. Snyder, Leland M. Gillman
  • Publication number: 20040248006
    Abstract: Electrically conductive filler such as carbon fibers, carbon particles, Ni fibers, Ni particles, Ni foil, Ni-plated fibers, or Ni-plated particles is added to an active material powder such as nickel hydroxide, which is formed into active material products. The active material is cured by using alkali-resistant resin. Thus, particulate active material for use in a three-dimensional battery is produced.
    Type: Application
    Filed: March 16, 2004
    Publication date: December 9, 2004
    Inventors: Kazuo Tsutsumi, Kazuya Nishimura, Susumu Mitsuda
  • Patent number: 6818355
    Abstract: A battery element of a lead acid battery including a negative plate, a positive plate and a silica filled polymeric separator having a micronized metal inhibiting additive associated with the separator that reduces the detrimental effects of at least one cation metal impurity on the negative plate.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: November 16, 2004
    Assignee: Ensci Inc.
    Inventor: Thomas J. Clough
  • Patent number: 6803151
    Abstract: An electrode comprising a noble-metal free grid comprising lead, wherein the grid has an essentially PbO free PbO2 coating covering all, or essentially all of the surface of the grid. Also described is a method of forming an electrode, comprising applying an essentially PbO free PbO2 coating to a noble-metal free grid comprising lead, wherein the coating covers all, or essentially all of the surface of the grid.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: October 12, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Rongrong Chen, John Lewis Ayres
  • Patent number: 6787266
    Abstract: A battery, in which measures are taken to suppress a reduction in charge/discharge capacity and degradation of load characteristics due to peeling of an active material off the current collector during repeated charging and discharging, is disclosed. Boehmite treatment or chromate treatment of the current collector surface of the electrode plate for the battery suppresses the degradation of charge/discharge capacity and load characteristics.
    Type: Grant
    Filed: April 21, 2001
    Date of Patent: September 7, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tatsuya Hashimoto, Hiroyuki Murai, Yorihito Ohana, Hiroshi Matsuno, Hideya Asano
  • Patent number: 6770401
    Abstract: A battery element of a lead acid battery including a negative plate, a positive plate and a fiber mat separator having a micronized metal inhibiting additive associated with the fiber mat that reduces the detrimental effects of at least one cation metal impurity on the negative plate.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: August 3, 2004
    Assignee: Ensci Inc.
    Inventor: Thomas J. Clough
  • Patent number: 6755874
    Abstract: A plate making process for a lead acid battery which eliminates the need for steaming and curing steps to produce the active material. Mixing, reacting and crystallizing occur in a closed reactor under controlled temperature and mixing conditions to produce a paste having the desired crystal morphology. A polymer is then added to the paste to bind the crystals together and to produce desired rheological properties in the paste. The paste having the polymer addition is then pasted onto a grid where the paste is dried to form a battery plate of the lead acid battery. The process is applicable for both the positive and negative plates of a lead acid battery.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: June 29, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Rongrong Chen, Shay Harrison, Wellington Y. Kwok
  • Patent number: 6740452
    Abstract: Provided for herein is a process of forming a negative battery paste comprising combining a barium containing material at least partially dissolved in a portion of water with an organic expander, carbon black, and a lead oxide containing material to form a first mixture, followed by combining the first mixture with an amount of sulfuric acid to form the negative battery paste.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: May 25, 2004
    Assignee: Delphi Technologies, Inc.
    Inventor: Daxing Ma
  • Publication number: 20040091777
    Abstract: Lead composition for use in the production of battery components particularly the electrode plates, having specific amounts or ranges of trace elements to maximise battery life. Ranges of trace elements include the combination of 20-100 ppm silver, 250-1000 ppm bismuth, and 250-1000 ppm zinc; or 100-1000 ppm antimony and 100-1000 ppm iron; or 250-1000 ppm bismuth, 250-1000 ppm zinc, 20-100 ppm silver, not more than 20 ppm antimony and not more than 30 ppm iron.
    Type: Application
    Filed: September 8, 2003
    Publication date: May 13, 2004
    Applicants: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION, INC.
    Inventors: Lan Trieu Lam, David Anthony Rand
  • Patent number: 6733547
    Abstract: A composition and plate-making process for a lead acid battery for reducing active material shrinkage in negative battery plates. A polymer is mixed with lead oxide, water, an expander and sulfuric acid to form a negative paste composition comprising the expander and basic lead sulfate crystals with the polymer absorbed on the crystal surfaces. The paste having the polymer addition is then pasted onto a grid where the paste is dried, cured and reacted to form a negative battery plate of the lead acid battery. The negative battery plate comprises a sponge lead negative active mass that exhibits less shrinkage by virtue of the polymer addition.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: May 11, 2004
    Assignee: Delphi Technologies, Inc.
    Inventor: Daxing Ma