Sulphate Containing Patents (Class 429/205)
  • Patent number: 11916252
    Abstract: New or improved lead acid batteries with vapor pressure barriers and/or improved battery separators, as well as systems, vehicles, and/or methods of manufacture and/or use thereof are disclosed herein. In at least select embodiments, the instant disclosure provides new or improved lead acid batteries with a vapor pressure barrier. In at least select embodiments, the instant disclosure provides new or improved lead acid battery vapor pressure barriers along with new or improved battery separators, and/or methods of manufacture and/or use thereof. In at least select embodiments, the instant disclosure provides a new or improved lead acid battery with a vapor pressure barrier that reduces the water loss from the battery. In at least select embodiments, a method of reducing the water loss of a lead acid battery may include providing a vapor pressure barrier, such as a layer of oil, inside the lead acid battery along with an improved battery separator.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: February 27, 2024
    Assignee: Daramic, LLC
    Inventors: Margaret R. Roberts, Jeffrey K. Chambers, James Perry, J. Kevin Whear
  • Patent number: 11329574
    Abstract: A system and a method for an energy harvesting and storage apparatus including a flexible substrate, an energy harvesting device disposed on the flexible substrate, the energy harvesting device is configured to convert mechanical energy into electrical energy, an energy storage device disposed on the flexible substrate and in electrical communication with the energy harvesting device and configured to receive and store the electrical energy from the energy harvesting device.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: May 10, 2022
    Assignee: City University of Hong Kong
    Inventors: Chunyi Zhi, Zifeng Wang
  • Patent number: 11094963
    Abstract: A solid electrolyte represented by general formula LiySiRx(MO4), where x is an integer from 1 to 3 inclusive, y=4?x, each R present is independently C1-C3 alkyl or C1-C3 alkoxy, and M is sulfur, selenium, or tellurium. Methods of making the solid electrolyte include combining a phenylsilane and a first acid to yield mixture including benzene and a second acid, and combining at least one of an alkali halide, and alkali amide, and an alkali alkoxide with the second acid to yield a product d represented by general formula LiySiRx(MO4)y. The second acid may be in the form of a liquid or a solid. The phenylsilane includes at least one C1-C3 alkyl substituent or at least one C1-C3 alkoxy substituent, and the first acid includes at least one of sulfuric acid, selenic acid, and telluric acid.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: August 17, 2021
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Charles Austen Angell, Iolanda Santana Klein, Telpriore Greg Tucker
  • Patent number: 10886561
    Abstract: A system and a method for an adaptable electrical component including a first electrode and a second electrode; the first electrode being spaced apart from the second electrode; a polymer electrolyte disposed between the first electrode and the second electrode; a housing retaining the first electrode, second electrode and the polymer electrolyte; wherein the polymer electrolyte is a thermoresponsive polymer electrolyte, such that one or more characteristics of the polymer electrolyte changes in response to a temperature exceeding a threshold.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: January 5, 2021
    Assignee: City University of Hong Kong
    Inventors: Chunyi Zhi, Funian Mo
  • Patent number: 10439186
    Abstract: A flooded lead-acid battery include a pasting substrate embedded into an active material of at least one surface of either the positive plates or the negative plates of each respective plurality, wherein the pasting substrate has an initial thickness. The pasting substrate thickness has a compressed thickness within the container that is at least 10 to 20% less than the initial thickness.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: October 8, 2019
    Assignee: EXIDE TECHNOLOGIES
    Inventors: Jesus Valenciano Martinez, Luca Brisotto, Francisco Trinidad Lopez
  • Patent number: 10297820
    Abstract: An anode active material and a method for preparing the same, wherein the anode active material has a core-shell structure having formula (MOx-Liy)-C (here, M is a metal (or metalloid), x is greater than 0 and less than 1.5, and y is greater than 0 and less than 4) and including a core part containing an alloy of a metal (or metalloid) oxide-Li (MOx-Liy) and a shell part containing a carbon material coated on a surface of the core part, wherein the shell part contains lithium in an amount less than 5 atm % in the surface and the inner portion thereof. The anode active material can provide high capacity, excellent cycle characteristics, excellent volume expansion control capability, and high initial efficiency.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 21, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yoon-Ah Kang, Yong-Ju Lee, Eun-Kyung Kim
  • Patent number: 9764283
    Abstract: A scrubbing solution is provided having an absorbent for carbon dioxide based on amines, or ethanolamines, or amino acid salts, or potash, or a combination thereof, and an additive activating the absorption rate, wherein the activating additive is a germanium dioxide. A corresponding method for accelerating the absorption of carbon dioxide is also provided, wherein a carbon dioxide-containing gas is contacted with such a scrubbing solution, wherein the carbon dioxide is physically dissolved in the scrubbing solution and is chemically absorbed with the participation of the absorbent, and wherein the germanium dioxide acts catalytically for at least one reaction step of the chemical absorption of the carbon dioxide.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: September 19, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bjorn Fischer, Ralph Joh, Markus Kinzl, Diego Andres Kuettel, Rudiger Schneider
  • Patent number: 9525195
    Abstract: A remanufactured battery module includes a power assembly having a stack of battery cell assemblies. Each battery cell assembly includes a plurality of layers including a battery cell and a frame supporting the battery cell within the power assembly. The plurality of layers of at least one battery cell assembly includes an internal heat fin having first and second side portions extending beyond respective side edges of the battery cell and the frame. The remanufactured battery module also includes a side assembly in physical contact with the first side portion of the internal heat fin to enable the side assembly to act as a heat sink with respect to the first side portion of the internal heat fin. A layer of the plurality of layers of at least one battery cell assembly is new, and at least a portion of the side assembly is used.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: December 20, 2016
    Assignee: Johnson Controls Technology Corporation
    Inventors: Perry M. Wyatt, Thanh T. Nguyen
  • Patent number: 8927143
    Abstract: A storage battery is provided comprising a positive electrode of lead, a negative electrode of gallium and an aqueous electrolyte containing aluminum sulfate. Upon charging the cell, lead dioxide is formed and aluminum is alloyed with the gallium. During discharge, aluminum goes back into solution and lead dioxide is reduced to lead sulfate.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: January 6, 2015
    Inventor: John E. Stauffer
  • Patent number: 8765297
    Abstract: An Advanced Graphite, with a lower degree of ordered carbon domains and a surface area greater than ten times that of typical battery grade graphites, is used in negative active material (NAM) of valve-regulated lead-acid (VRLA) type Spiral wound 6V/25 Ah lead-acid batteries. A significant and unexpected cycle life was achieved for the Advanced Graphite mix where the battery was able to cycle beyond 145,000 cycles above the failure voltage of 9V in a non-stop, power-assist cycle-life test. Batteries with Advanced Graphite also showed increased charge acceptance power and discharge power compared to control groups.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: July 1, 2014
    Assignee: Exide Technologies
    Inventors: Sudhakar Jagannathan, Melchor Fernandez Garcia
  • Publication number: 20130143113
    Abstract: A storage battery is provided comprising a positive electrode of lead, a negative electrode of gallium and an aqueous electrolyte containing aluminum sulfate. Upon charging the cell, lead dioxide is formed and aluminum is alloyed with the gallium. During discharge, aluminum goes back into solution and lead dioxide is reduced to lead sulfate.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 6, 2013
    Inventor: John E. STAUFFER
  • Publication number: 20130045415
    Abstract: A rechargeable battery is provided such that the positive electrode comprises lead, the negative electrode zinc, and the electrolyte is an aqueous solution of an alkali metal bisulfate. Upon discharge, lead dioxide is reduced to lead sulfate and zinc is oxidized to zinc oxide. The reactions are reversed when the battery is charged.
    Type: Application
    Filed: October 11, 2012
    Publication date: February 21, 2013
    Inventor: John E. STAUFFER
  • Publication number: 20130029232
    Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, a separator and an ionic liquid electrolyte. The separator is a polar porous membrane. The ionic liquid electrolyte and the separator made of the polar porous are used in the lithium ion secondary batteries, which can improve the electrochemical performance of the lithium ion secondary batteries.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 31, 2013
    Applicant: Microvast New Materials (Huzhou) Co., LTD.
    Inventors: ZHUOQUN ZHENG, Bin Gu, Hong Wang, Liaoying Ke, Yunhua Nie
  • Publication number: 20120270102
    Abstract: An energy storage device including an anode electrode comprising activated carbon with nitrogen containing surface groups that provide psuedocapacitive properties to the activated carbon, a cathode electrode, a separator, and an electrolyte.
    Type: Application
    Filed: October 11, 2011
    Publication date: October 25, 2012
    Applicant: Aquion Energy, Inc.
    Inventors: Jay Whitacre, Sneha Shanbhag
  • Patent number: 8232003
    Abstract: A storage battery is provided comprising a positive electrode of lead, a negative electrode of palladium, and an electrolyte consisting of an aqueous solution of at least one sulfate salt. Upon charging, lead is converted to lead dioxide and atomic hydrogen is absorbed by the palladium. During discharge, lead dioxide is reduced to the plumbous state and hydrogen is oxidized to hydrogen ions.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: July 31, 2012
    Inventor: John E. Stauffer
  • Publication number: 20120171564
    Abstract: An Advanced Graphite, with a lower degree of ordered carbon domains and a surface area greater than ten times that of typical battery grade graphites, is used in negative active material (NAM) of valve-regulated lead-acid (VRLA) type Spiral wound 6V/25 Ah lead-acid batteries. A significant and unexpected cycle life was achieved for the Advanced Graphite mix where the battery was able to cycle beyond 145,000 cycles above the failure voltage of 9V in a non-stop, power-assist cycle-life test. Batteries with Advanced Graphite also showed increased charge acceptance power and discharge power compared to control groups.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 5, 2012
    Applicant: Exide Technologies
    Inventors: Sudhakar JAGANNATHAN, Fernández Melchor
  • Publication number: 20120082901
    Abstract: Li-based anodes for use in an electric current producing cells having long life time and high capacity are provided. In certain embodiments, the Li-based anode comprises at least one anode active Li-containing compound and a composition comprising at least one polymer, at least one ionic liquid, and optionally at least one lithium salt. The composition may be located between the at least one Li-containing compound and the catholyte used in the electric current producing cell. In some embodiments, the at least one polymer may be incompatible with the catholyte. This configuration of components may lead to separation between the lithium active material of the anode and the catholyte. Processes for preparing the Li-based anode and to electric current producing cells comprising such an anode are also provided.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicants: BASF SE, Sion Power Corporation
    Inventors: Rudiger Schmidt, Daher Michael Badine, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
  • Publication number: 20120082872
    Abstract: Spiro ammonium salts as an additive for electrolytes in electric current producing cells, in particular electric current producing cells comprising a Li-based anode, are provided. In some embodiments, the electric current producing cell comprises a cathode, a Li-based anode, and at least one electrolyte wherein the electrolyte contains at least one spiro ammonium salt.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicants: BASF SE, Sion Power Corporation
    Inventors: Rudiger Schmidt, Daher Michael Badine, Xiao Steimle, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
  • Publication number: 20110318636
    Abstract: The hydration of cadmium oxide in the presence of nickel acetate gives the possibility of obtaining a compound of general formula Cd1-xNix(OH)2-y(CH3CO2)y with 0<x?0.05 and 0<y?0.10. This compound may be advantageously, used as an electrochemically active material of an anode of the envelope type of a nickel cadmium generator. This anode does not contain any sulfates responsible for the formation of short-circuits. Further, this anode has a high electrochemical yield. A method for preparing this compound and the anode is described.
    Type: Application
    Filed: December 23, 2009
    Publication date: December 29, 2011
    Applicant: SAFT
    Inventors: Stéphanie Chevalier, Claudette Audry, Mélanie Dendary, Philippe Desprez, Björn Marlid, Rune Sjövall, Jerry Gottfridsson
  • Patent number: 7879490
    Abstract: This invention provides a lead battery that becomes usable by injecting an electrolyte thereinto. The battery includes: positive and negative electrode plates each having a grid comprising a Pb—Ca based alloy; separators that separate the positive electrode plates from the negative electrode plates; the electrolyte comprising sulfuric acid; and a battery container accommodating the positive and negative electrode plates, the separators, and the electrolyte. The battery container is sealed, and part of the positive and negative electrode plates is immersed in the electrolyte. The height Y0 of the positive and negative electrode plates and the distance Y1 from the bottom of the positive and negative electrode plates to the level of the electrolyte satisfy the relation: 15?Y1/Y0×100?60.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: February 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Yasuda, Tsunenori Yoshimura, Mitsuru Kurokawa, Sadao Furuya
  • Publication number: 20110008674
    Abstract: A slab lattice of the orthoplumbic acid battery is able to decrease a occurrence rate of sulfation, wherein, the slab lattice of the battery provided multiple skeleton frames which substantially parallel to each other on the inner rim of the outer frame, and each skeleton frame is provided with a reaction chip, the width of the reaction chip is larger than the width of the skeleton frame substantially. As the slab lattice of the battery is soaking in solution, it increased the contact area with the solution and to improved the efficacity of the reaction. And restrainedly generate Non-activated material on the skeleton frame at the same time, therefor accomplished the efficacy of strengthening electric power storage, electrification and electrical discharge.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 13, 2011
    Inventor: Chun-Yi HONG
  • Publication number: 20100159337
    Abstract: A secondary battery is provided that is capable of improving the cycle characteristics. The secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated into a separator provided between the cathode and the anode. In the anode, an anode active material layer and a compound layer are provided on both faces of an anode current collector. The anode active material layer contains a plurality of anode active material particles. The anode active material particles have a multilayer structure of an anode active material containing silicon as an element. The thickness of each layer in the multilayer structure ranges from 50 nm to 1050 nm. Thus, contact characteristics between each layer, contact characteristics between the anode active material layer and the anode current collector, and current collectivity are improved.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 24, 2010
    Applicant: SONY CORPORATION
    Inventors: Koichi Matsumoto, Kenichi Kawase, Isamu Konishiike, Shunsuke Kurasawa, Masayuki Iwama, Takakazu Hirose, Takashi Fujinaga
  • Publication number: 20090311608
    Abstract: A secondary battery capable of improving the cycle characteristics and the voltage retention characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolyte. The anode includes an anode current collector, an anode active material layer formed on the anode current collector and including an anode active material containing silicon as an element, and a coat formed on the anode active material layer and having an integral structure of three-dimensional network.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 17, 2009
    Applicant: SONY CORPORATION
    Inventors: Takakazu Hirose, Kenichi Kawase, Kazunori Noguchi, Takayuki Fujii, Masaki Kawata
  • Publication number: 20090253033
    Abstract: A secondary battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes an anode active material layer having a plurality of fine pores on an anode current collector. The anode active material layer contains an anode active material and an anode binder. A change rate of a mercury intrusion into the plurality of fine pores measured by mercury penetration technique is distributed to show a peak in the pore diameter range from 30 nm to 10000 nm, both inclusive.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 8, 2009
    Applicant: SONY CORPORATION
    Inventors: Takakazu Hirose, Kenichi Kawase, Kazunori Noguchi, Takayuki Fujii
  • Patent number: 7585994
    Abstract: The invention relates to a method for producing perfluoroalkanesulfonic acid esters and for further transforming the same into the salts thereof. The invention also relates to the use of the produced compounds in electrolytes, batteries, capacitors, supercapacitors, and galvanic cells.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: September 8, 2009
    Assignee: Merck Patent GmbH
    Inventors: Nikolai Ignatyev, Michael Schmidt, Udo Heider, Peter Sartori, Andry Kucheryna
  • Patent number: 7455936
    Abstract: An electric cell comprising a positive electrode, a negative electrode containing aluminum or aluminum alloy, and an electrolyte arranged between the positive electrode and the negative electrode, wherein the electrolyte includes: at least one ion selected from a group of a sulfate ion (SO42?) and a nitrate ion (NO3?), the concentration of the ion being in the range of 0.2 to 16 M/L; and an additive selected from a group of an organic acid, a salt of the organic acid, a hydrate of the organic acid, an ester of the organic acid, an ion of the organic acid, and derivatives thereof.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: November 25, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruchika Ishii, Norio Takami, Tomokazu Morita, Mitsuo Kasori
  • Patent number: 7326496
    Abstract: In an alkaline dry battery comprising a positive electrode, a negative electrode, and an alkaline electrolyte, the positive electrode includes manganese dioxide and graphite powder and contains Ti(SO4)2 as an additive.
    Type: Grant
    Filed: September 2, 2002
    Date of Patent: February 5, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takayuki Umebayashi, Mitsuji Adachi
  • Patent number: 7078123
    Abstract: Disclosed is a method for preparing a high energy density (HED) electrolyte solution for use in an all-vanadium redox cell, a high energy density electrolyte solution, in particular an all-vanadium high energy density electrolyte solution, a redox cell, in particular an all-vanadium redox cell, comprising the high energy density electrolyte solution, a redox battery, in particular an all-vanadium redox battery, comprising the HED electrolyte solution, a process for recharging a discharged or partially discharged redox battery, in particular an all-vanadium redox battery, comprising the HED electrolyte solution, a process for the production of electricity from a charged redox battery, and in particular a charged all-vanadium redox battery, comprising the HED electrolyte, a redox battery/fuel cell and a process for the production of electricity from a redox battery/fuel cell.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: July 18, 2006
    Assignee: VRB Power Systems, Inc.
    Inventors: Michael Kazacos, Maria Skyllas Kazacos
  • Patent number: 7078124
    Abstract: A positive electrode which has a positive active material layer formed on a conductive substrate and a polymer film coated on the positive active material layer, wherein the positive active material layer includes a positive active material, pores of which are filled with a polymeric material containing a nonaqueous electrolyte, and the polymer film, and the polymer film formed of the polymeric material containing the nonaqueous electrolyte. The polymeric material is formed by polymerization of a composition comprising a monomer and the nonaqueous electrolyte. The monomer includes 1 to 6 functional groups per molecule, and the functional groups are selected from the group consisting of vinyl, allyl, acryl, methacryl and epoxy group.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: July 18, 2006
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ju-Yup Kim, Myung-Dong Cho, Young-Gyoon Ryu
  • Publication number: 20040202926
    Abstract: A battery (100) comprises a cell having a cathode compartment (120) that includes an element that is oxidized during charging of the battery (100), wherein the oxidized element forms a salt with an acid and thereby increases the H+ concentration in the cathode compartment (120) sufficient to promote an H+ flux into the anode compartment (110) across the separator (130), wherein the H+ flux across the separator (130) is sufficient to disintegrate a zinc dendrite proximal to the separator (130).
    Type: Application
    Filed: May 24, 2004
    Publication date: October 14, 2004
    Inventors: Robert Lewis Clarke, Brian Dougherty, Stephen Harrison, Peter J Millington, Samaresh Mohanta
  • Patent number: 6800395
    Abstract: A secondary battery of a proton conductive polymer, wherein a positive electrode and a negative electrode are arranged facing to each other via a separator in an electrolyte and only a proton or a proton of a hydroxyl group in an indole trimer and a &pgr; conjugated polymer, i.e., an active material of electrode in the positive electrode and in the negative electrode participates in a charge/discharge, and a proton concentration is 5 to 40% and an anion concentration is 30 to 60% in the solution, respectively, and the anion concentration is at least higher than the proton concentration.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: October 5, 2004
    Assignee: NEC Tokin Corporation
    Inventors: Tomoki Nobuta, Toshihiko Nishiyama, Hiroyuki Kamisuki, Gaku Harada, Masato Kurosaki, Yuuji Nakagawa, Shinya Yoshida, Masaya Mitani
  • Patent number: 6790563
    Abstract: An electric cell using aluminum in a negative electrode has a positive electrode, the negative electrode containing aluminum or aluminum alloy, and an electrolyte arranged between the positive electrode and the negative electrode. The electrolyte includes: at least one ion selected from a group of a sulfate ion (SO42−) and a nitrate ion (NO3−); and an additive. The additive is selected from an organic acid, a salt of the organic acid, an hydrate of the organic acid, an ester of the organic acid, an ion of the organic acid, and derivatives thereof. Thus, the electric cell of the present invention using aluminum in a negative electrode allows the improvements in the voltage and the capacity of the cell as the generation of gas depending on the self-discharge can be prevented.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: September 14, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruchika Ishii, Norio Takami, Tomokazu Morita, Mitsuo Kasori
  • Patent number: 6764663
    Abstract: A process for preparing a reconstituted vanadyl sulphate/vanadous sulphate solution for use as an electrolyte in a vanadium redox battery is disclosed. The process includes preparing a starting material including a vanadyl sulphate/vanadous sulphate solution, evaporating the starting material by applying heat to form vanadyl sulphate/vanadous sulphate crystals, and re-dissolving the vanadyl sulphate/vanadous sulphate crystals with a volume of de-ionized water to form a reconstituted vanadyl sulphate/vanadous sulphate solution having substantially the same chemical composition at the starting material. A process for preparing a vanadyl sulphate/vanadous sulphate starting material from a vanadium bearing ore material, particularly a titaniferous magnetite ore material is also disclosed.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: July 20, 2004
    Assignee: Highveld Steel and Vanadium Corporation Limited
    Inventors: Patrick Albert Monaghan, Ivan Strydom, Andries Gerhardus Dormehl
  • Patent number: 6699615
    Abstract: An electrical battery has a vessel accommodating an electrolyte, a positive electrode and a negative electrode arranged in the vessel at a distance from one another in contact with the electrolyte, and a partition arranged in the vessel between the electrodes so that positive ions formed by an electrolytic process from a material of the positive electrode in the electrolyte move toward one side of the partition, and negative ions formed by an electrolytic process from a material of the electrolyte move to an opposite side of the partition during charging of the battery, so that the positive ions and the negative ions at both sides of the partition are attracted to one another and accumulate at both sides of the partition in great quantities so as to provide a significant charge in the battery, one of the electrodes being movable toward the partition to be located in a zone of accumulation of the ions of corresponding charge so as to obtain the charge with high voltage, so that a discharge of the battery is pe
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: March 2, 2004
    Inventor: Timofei Gutkin
  • Publication number: 20040033422
    Abstract: A process for prolonging the life of a lead-acid battery by adding an organic polymer and ultra fine lignin to its electrolyte and then discharging the battery at a high current rate and the battery so produced.
    Type: Application
    Filed: August 5, 2003
    Publication date: February 19, 2004
    Inventors: Akiya Kozawa, Hirofumi Hrada, Giyun Yokoi
  • Publication number: 20040018427
    Abstract: The present invention relates to chemicals or a combination of chemicals for optimizing the function of a new and already in service lead-acid battery over a long period of time, reducing corrosion on the positive plate, restoring lost capacity due to the accumulation of non-conductive lead sulphate crystals on plates, reducing charging time, and for starting batteries increasing cold crank rating.
    Type: Application
    Filed: March 4, 2003
    Publication date: January 29, 2004
    Inventor: Robert A. Monconduit
  • Publication number: 20030228525
    Abstract: A process for prolonging the life of a lead-acid battery by adding an organic polymer and ultra fine lignin to its electrolyte and then charging the battery and the battery so produced.
    Type: Application
    Filed: May 15, 2003
    Publication date: December 11, 2003
    Inventors: Akiya Kozawa, Hirofumi Harada, Gijun Yokol
  • Patent number: 6652819
    Abstract: A process for the production of a vanadium compound from carbonaceous residues containing vanadium, which includes the steps of: (a) combusting the carbonaceous residues at a temperature of 500-690° C. in an oxygen-containing gas to form vanadium-containing combustion residues; (b) heating the vanadium-containing combustion residues at a temperature T in ° C. under an oxygen partial pressure of at most T in kPa wherein T and P meet with the following conditions: log10(P)=−3.45×10−3×T+2.21 500≦T≦1300 to obtain a solid product containing less than 5% by weight of carbon and vanadium at least 80% of which is tetravalent vanadium oxide; (c) selectively leach tetravalent vanadium ion with sulfuring acid at pH in the range of 1.5-4; (d) separating a liquid phase from the leached mixture; (e) adding an alkaline substance to the liquid phase to adjust the pH thereof in the range of 4.5-7.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: November 25, 2003
    Assignee: Chiyoda Corporation
    Inventors: Yoshimi Shiroto, Ataru Wakabayashi
  • Patent number: 6613298
    Abstract: The present invention provides method of producing a trivalent and tetravalent mixed vanadium compound having excellent solubility with sulfuric acid directly from a tetravalent or pentavalent vanadium compound by using a reducing agent,and a method of producing a vanadium electrolyte. For example, a vanadium compound mainly containing a pentavalent vanadium compound; sulfur and concentrated sulfuric acid in molar ratios with respect to (one mol of vanadium atom in the pentavalent vanadium compound) 0.35 to 0.4:1.2 to 1.9 are kneaded into paste form, and the paste-form mixture is calcined at a temperature of not less than 150° C. to less than 440° C. so that a trivalent and tetravalent mixed vanadium compound is obtained, and a redox flow battery-use vanadium electrolyte is obtained by dissolving the trivalent and tetravalent mixed vanadium compound in a sulfuric acid solution.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: September 2, 2003
    Assignees: Kansai Electric Power Co., Inc., Sumitomo Electric Industries, Ltd., Nippon Chemical Industrial Co., Ltd.
    Inventors: Yasuyuki Tanaka, Ken Horikawa, Muneo Mita, Nobuyuki Tokuda, Michiru Kubata
  • Publication number: 20030143456
    Abstract: Disclosed is a method for preparing a high energy density (HED) electrolyte solution for use in an all-vanadium redox cell, a high energy density electrolyte solution, in particular an all-vanadium high energy density electrolyte solution, a redox cell, in particular an all-vanadium redox cell, comprising the high energy density electrolyte solution, a redox battery, in particular an all-vanadium redox battery, comprising the HED electrolyte solution, a process for recharging a discharged or partially discharged redox battery, in particular an all-vanadium redox battery, comprising the HED electrolyte solution, a process for the production of electricity from a charged redox battery, and in particular a charged all-vanadium redox battery, comprising the HED electrolyte, a redox battery/fuel cell and a process for the production of electricity from a redox battery/fuel cell.
    Type: Application
    Filed: August 22, 2002
    Publication date: July 31, 2003
    Inventors: Michael Kazacos, Maria Skyllas Kazacos
  • Patent number: 6599661
    Abstract: The present invention relates to an electrolyte composition for a lead storage battery, which can maintain the performance of a storage battery at low temperature by enhancing the performance and life of a storage battery. It can also be fully charged in a short period of time due to a greater current efficiency. The present invention can extend the life of a storage battery due to its effect of removing white-colored lead sulfate without corrosion at the electrode plates, and may lead to recycling of waste storage batteries ruined by white-colored lead sulfate.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: July 29, 2003
    Assignee: Solteko, Inc.
    Inventor: Kang-Soo Lee
  • Patent number: 6589692
    Abstract: There is provided an aluminum battery which comprises a positive electrode, a negative electrode containing at least one kind of active material selected from the group consisting of aluminum metal and aluminum alloys, and an electrolyte containing a halogen ion and at least one kind of ion selected from the group consisting of sulfate ion (SO42−) and nitrate ion (NO3−).
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: July 8, 2003
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Norio Takami
  • Patent number: 6444360
    Abstract: An alkali metal, solid cathode, non-aqueous electrochemical cell capable of delivering high current pulses, rapidly recovering its open circuit voltage and having high current capacity, is described. The stated benefits are realized by the addition of at least one organic sulfate additive to an electrolyte comprising an alkali metal salt dissolved in a mixture of a low viscosity solvent and a high permittivity solvent. A preferred solvent mixture includes propylene carbonate, 1,2-dimethoxyethane and a sulfate additive having at least one unsaturated hydrocarbon containing a C(sp or sp2)-C(sp3) bond unit having the C(sp3) carbon directly connected to the —OSO3— functional group.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: September 3, 2002
    Assignee: Wilson Greatbatch Ltd.
    Inventors: Hong Gan, Esther S. Takeuchi
  • Publication number: 20020068219
    Abstract: An active paste for an lead-acid electrochemical cell which in a preferred embodiment includes tin; a method of manufacturing the same; and an electrochemical cell utilizing the same. The tin may be a tin sulfate, tin oxide, or metallic tin. The active paste sandwiches a primarily lead film which may, but need not, also include tin, to form a positive electrode. One or more positive electrodes are interleafed with a number of negative electrodes, separated by a separator material. The assembly is placed in a container and electrolyte is introduced. In alternate embodiments, the paste may include some combination of antimony, arsenic, germanium, indium, selenium, gallium, tellurium or other semiconductor materials with or without tin compounds.
    Type: Application
    Filed: May 16, 2001
    Publication date: June 6, 2002
    Inventors: Shawn W. Snyder, Leland M. Gillman
  • Publication number: 20020048546
    Abstract: The present invention provides method of producing a trivalent and tetravalent mixed vanadium compound having excellent solubility with sulfuric acid directly from a tetravalent or pentavalent vanadium compound by using a reducing agent,and a method of producing a vanadium electrolyte. For example, a vanadium compound mainly containing a pentavalent vanadium compound; sulfur and concentrated sulfuric acid in molar ratios with respect to (one mol of vanadium atom in the pentavalent vanadium compound) 0.35 to 0.4:1.2 to 1.9 are kneaded into paste form, and the paste-form mixture is calcined at a temperature of not less than 150° C. to less than 440° C. so that a trivalent and tetravalent mixed vanadium compound is obtained, and a redox flow battery-use vanadium electrolyte is obtained by dissolving the trivalent and tetravalent mixed vanadium compound in a sulfuric acid solution.
    Type: Application
    Filed: July 2, 2001
    Publication date: April 25, 2002
    Inventors: Yasuyuki Tanaka, Ken Horikawa, Muneo Mita, Nobuyuki Tokuda, Michiru Kubata
  • Patent number: 6350546
    Abstract: A lithium ion electrochemical cell having high charge/discharge capacity, long cycle life and exhibiting a reduced first cycle irreversible capacity, is described. The stated benefits are realized by the addition of at least one sulfate additive to an electrolyte comprising an alkali metal salt dissolved in a solvent mixture that includes ethylene carbonate, dimethyl carbonate, ethylmethyl carbonate and diethyl carbonate. The preferred additive is selected from a silyl sulfate, tin sulfate or an organic sulfate.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: February 26, 2002
    Assignee: Wilson Greatbatch Ltd.
    Inventors: Hong Gan, Esther S. Takeuchi
  • Publication number: 20010028977
    Abstract: Disclosed is a method for preparing a high energy density (HED) electrolyte solution for use in an all-vanadium redox cells, a high energy density electrolyte solution, in particular an all-vanadium high energy density electrolyte solution, a redox cell, in particular an all-vanadium redox cell, comprising the high energy density electrolyte solution, a redox battery, in particular an all-vanadium redox battery, comprising the HED electrolyte solution, a process for recharging a discharged or partially discharged redox battery, in particular an all-vanadium redox battery, comprising the HED electrolyte solution, a process for the production of electricity from a charged redox battery, and in particular a charged all-vanadium redox battery, comprising the HED electrolyte, a redox battery/fuel cell and a process for the production of electricity from a redox battery/fuel cell.
    Type: Application
    Filed: February 24, 1998
    Publication date: October 11, 2001
    Inventors: MICHAEL KAZACOS, MARIA SKYLLAS KAZACOS
  • Patent number: 6265106
    Abstract: An alkali metal, solid cathode, non-aqueous electrochemical cell capable of delivering high current pulses, rapidly recovering its open circuit voltage and having high current capacity, is described. The stated benefits are realized by the addition of at least one organic sulfate additive to an electrolyte comprising an alkali metal salt dissolved in a mixture of a low viscosity solvent and a high permittivity solvent. A preferred solvent mixture includes propylene carbonate, dimethoxyethane and a sulfate additive.
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: July 24, 2001
    Assignee: Wilson Greatbatch Ltd.
    Inventors: Hong Gan, Esther S. Takeuchi
  • Patent number: 6218052
    Abstract: The invention provides an electrolyte solution, a producing method thereof, and a method for producing high-capacity lead-acid storage battery. The electrolyte is composed of ET-90 stabilizator (1.5-9.6%), nickel sulphate (0.005-0.04%), cobalt sulphate (0.003-0.025%), aluminium sulphate (2-4.8%), sodium sulphate (1.3-3.7%), aluminium phosphate (2-6.3%), lithium iodide (0.090-0.3%), colloidal silicon dioxide (silica gel) (17.6-24%), lithium chloride (0.09-0.31%), lithium carbonate (1.3-5%), magnesium sulphate (1.2-5.9%), sulfuric acid (analytically pure) (7-11.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: April 17, 2001
    Inventor: Wanxi Wang
  • Patent number: 6187475
    Abstract: A rechargeable cell which is comprised of a cathode material, an anode material and an electrolyte, wherein said cathode material is a mixture of manganese dioxide and electrically conducting material, with said anode material being zinc or a zinc alloy, said electrolyte is 0.5M to 3M aqueous zinc sulfate solution, and manganese (II) salt is added to at least one of the said cathode material, anode material or electrolyte, in total, has an excellent capacity and reversibility.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: February 13, 2001
    Assignee: Finecell Co., Ltd.
    Inventors: Seung-Mo Oh, Sa-Heum Kim