Organic Component Is An Antioxidant Patents (Class 429/214)
  • Patent number: 12095098
    Abstract: An assembly of lithium-based solid anodes to be formed into a lithium-ion battery. The anodes are formed with a fibrous ceramic or polymer framework having open spaces and an active surface material having lithiophilic properties. Open spaces within the fibrous framework and lithiophilic coatings deposited upon the surface of the fibrous framework allow for the free transport of solid lithium-ions within the anodes. In solid-state, lithium batteries can achieve higher capacity per weight, charge faster, and be more durable to extreme handling and temperature. A method for manufacturing a solid-state lithium battery having such an anode.
    Type: Grant
    Filed: August 16, 2023
    Date of Patent: September 17, 2024
    Inventor: Claudiu B. Bucur
  • Patent number: 11777096
    Abstract: The present invention provides a slurry composition comprising a binder comprising a polymer comprising a fluoropolymer dispersed in a liquid medium; an adhesion promoter; and at least one of an electrochemically active material or an electrically conductive agent. The present invention also provides electrodes and electrical storage devices.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: October 3, 2023
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Stuart D. Hellring, Debra L. Singer, Matthew Stewart, Jacob W. Mohin
  • Patent number: 11271276
    Abstract: A battery, a fixture for forming a battery plate, a kit, and a related method of manufacture are provided. The battery comprises a housing and a mechanically actuated valve. The housing defines a cell configured to receive battery plates. The mechanically actuated valve is in fluid communication with the cell and configured to control entry of electrolyte into the cell.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: March 8, 2022
    Assignee: TELEDYNE TECHNOLOGIES INCORPORATED
    Inventors: John D. Anderson, Janak M. Rajpara
  • Patent number: 11069884
    Abstract: A method produces a positive electrode active material that does not impair the original battery characteristics of the positive electrode active material. The method can improves water resistance, and suppress the gelation of a positive electrode mixture material paste. The method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries can include a mixing step of preparing a mixture including fine carbon particles, an organic dispersant, a hydrophobic coat forming agent, an organic solvent, and positive electrode active material particles, a drying step of drying the mixture to obtain the mixture containing the organic solvent in a reduced amount, and a heat treatment step of heat-treating the mixture containing the organic solvent in the reduced amount to obtain a coated positive electrode active material.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: July 20, 2021
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Shoji Takanashi, Tetsufumi Komukai
  • Patent number: 10586966
    Abstract: To provide a technique of trapping transition metal ions such as cobalt ions dissolved from positive electrode active material in a secondary battery to prevent deposition of transition metal on the negative electrode. Disclosed is a composition for non-aqueous secondary battery functional layer which contains organic particles containing an aliphatic conjugated diene monomer unit at an amount of 5% by mass or more based on the total monomer units in the organic particles, wherein the composition comprises the organic particles at an amount of 50% by mass or more in terms of solid content.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: March 10, 2020
    Assignee: ZEON CORPORATION
    Inventor: Hiromi Takamatsu
  • Patent number: 8563170
    Abstract: A negative electrode for alkaline storage battery using a hydrogen-absorbing alloy includes fluorinated oil and a surface active agent.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: October 22, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yoshifumi Magari, Tadayoshi Tanaka, Shigekazu Yasuoka, Masaru Kihara, Akira Saguchi, Toshiki Sato
  • Patent number: 8426062
    Abstract: Disclosed is a binder composition for a nonaqueous electrolyte secondary battery electrode including an antioxidizing agent, able to inhibit the thickening of an electrode slurry. The binder composition enables to form electrode slurry without making the antioxidizing agent adhere to the insides of fine pores of electrode active materials after coating and drying. The binder composition for a nonaqueous electrolyte secondary battery electrode contains a binder and an emulsified antioxidizing agent, and particularly, it is preferable that the binder is an aqueous binder including a diene-based polymer and that the antioxidizing agent is a polymeric phenol compound.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: April 23, 2013
    Assignee: Zeon Corporation
    Inventors: Yasuhiro Wakizaka, Kei Kobayashi
  • Patent number: 7923148
    Abstract: Disclosed is a nonaqueous electrolyte secondary battery which has a negative electrode containing silicon as a negative active material, a positive electrode containing a positive active material, a nonaqueous electrolyte and a separator. Characteristically, an additive which retards oxidation of silicon during operation of the battery is contained either in an interior or surface portion of the positive electrode, or in an interior or surface portion of the negative electrode, or in an interior or surface portion of the separator.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: April 12, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hidekazu Yamamoto, Keiji Saisho, Yoshio Kato, Shigeki Matsuta
  • Publication number: 20040072068
    Abstract: A battery unit cell with improved conductive sealing by shielding the positive tablet electrode with a conductive polymeric sheet such as a thermo-plastic rubber sheet dispersed with acetylene black. This improved sealing alleviates the adverse loss of moisture from the battery unit cell and enhances the shelf- or storage-life of batteries with cells with such improved sealing means or methods.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Inventors: Tse Wan Lu, Chung Yuen Law, Yik Pang Chak
  • Publication number: 20030054246
    Abstract: An additive compound for oxidizable metal such as zinc is provided.
    Type: Application
    Filed: June 17, 2002
    Publication date: March 20, 2003
    Inventors: Lin-Feng Li, Dan K. Nguyen
  • Patent number: 6309777
    Abstract: An active material free part of a positive electrode is coated with an over-coat material, wherein the over-coat material has at least one of the following properties: suppression of heat transfer from the second part of the electrode to the separator; reduction of a heat transfer rate from the second part of the electrode to the separator; prevention of transfer of excess heat from the second part of the electrode to the separator; electrical isolation of the second part of the electrode from the separator; prevention of charges generated in the first active material from becoming concentrated in the second part of the electrode and discharged from the second part; and prevention of the separator from being melted by a current discharge from or into the second part of the electrode through the separator until the current discharge is shut down by a fuse function of the separator.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: October 30, 2001
    Assignees: NEC Corporation, NEC Moli Energy Corporation
    Inventors: Tomoyuki Ohta, Masato Shirakata, Hajime Satoh
  • Patent number: 6300015
    Abstract: The present invention provides a positive electrode active material doped with a dopant comprising an anion having the same or similar molecular structure to a polymer matrix of at least one of a solid electrolyte and a gel solid electrolyte.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: October 9, 2001
    Assignee: NEC Corporation
    Inventors: Toshihiko Nishiyama, Gaku Harada, Shinako Okada, Masaki Fuziwara
  • Patent number: 6287723
    Abstract: An alkaline secondary battery comprising an electrolyte such as aqueous solution of potassium hydroxide, at least one cathode electrode, at least one anode electrode having an anode active material layer, and a separator such as non-woven fabric between the anode electrode and the cathode electrode, in which the anode active material layer containing an anode active material such as a hydridable alloy or a cadmium alloy, and an anode binder which includes a nonionic polymer produced by emulsion polymerization of a nonionic monomer in the presence of a nonionic surfactant, and in which the electrolyte essentially surrounds the cathode electrode and the anode electrode.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: September 11, 2001
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Koichiro Maeda, Toshihiro Inoue, Kenji Wada, Hidekazu Haneda, Haruhisa Yamamoto
  • Patent number: 6274268
    Abstract: A polymer secondary battery uses, for at least one of the active material of positive electrode and the active material of negative electrode, a polymer-carbon composite material including powdered carbon having its surfaces coated with an organic compound polymer capable of adsorbing and desorbing protons electrochemically. The polymer secondary battery has a high rate of appearance of capacity and excellent cycle characteristics.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: August 14, 2001
    Assignee: NEC Corporation
    Inventors: Masaki Fujiwara, Gaku Harada, Shinako Okada, Toshihiko Nishiyama
  • Patent number: 6187478
    Abstract: A battery element of a lead acid battery including a negative plate, a positive plate and a separator having a metal inhibiting additive that reduces the detrimental effects of at least one impurity on the negative plate.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: February 13, 2001
    Assignee: Ensci Inc
    Inventors: Thomas J. Clough, Frank X. McGarvey
  • Patent number: 6168885
    Abstract: Electrodes are manufactured using a fire-retardant solvent and a polymerizable monomer. Electrodes according to the present invention are contemplated to find applicability in substantially any electrode containing device, including batteries. A preferred class of fire-retardant solvents includes solvents that generate a fire-retardant gas upon decomposition. One subclass includes compositions that produce carbon dioxide upon decomposition. Other subclasses include species that generate non-CO2 gases upon decomposition, such as CO, SO2, SO3, NO, N2O, NO2, or N2. A second preferred class of fire-retardant solvents include solvents that are fire-retardant without generating a fire-retardant gas upon decomposition, and are electrochemically inactive. Subclasses here include the many phosphates, phosphazenes, borates, siloxanes, fluorinated carbonates and fluorinated ethers that are already known to be included in a fire-retardant electrolyte.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: January 2, 2001
    Assignee: SRI International
    Inventors: Subhash C. Narang, Susanna Ventura, Philip Cox
  • Patent number: 6072694
    Abstract: The adhesion of a conductive polymer film to an oxidized porous pellet anode is improved by the incorporation of a silane coupling agent in the polymer impregnating solution. The incorporation of the silane coupling agent also decreases leakage current and dissipation factor. Suitable silanes are those of the general formula (R.sup.1 --R.sup.3)--Si--(OR.sup.2).sub.3. Each of R.sup.2 and R.sup.3 is a C.sub.1 -C.sub.6 alkyl group such as methyl, ethyl, or propyl. R.sup.1 can be chosen from a wide variety of organic functional groups such as epoxy, glycidoxy, amino, and pyrrole. The most preferred silane is 3-glycidoxypropyltrimethoxysilane.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: June 6, 2000
    Assignee: Kemet Electronics Corporation
    Inventors: Randolph S. Hahn, Philip M. Lessner, Veeriya Rajasekaran
  • Patent number: 5824434
    Abstract: A secondary battery exhibiting a long cycle life and comprising a negative pole activating material made of lithium or zinc is provided, the battery at least having a negative pole made of lithium or zinc serving as the negative pole activating material, an electrolyte (electrolytic solution), a separator, a positive pole made of a positive pole activating material, a collecting electrode and a battery case, wherein at least the surface of the negative pole is covered with a film having a structure which allows ions relating to the battery reactions to pass through. Since growth of dendrite of lithium or zinc at the time of the charge can be prevented, short circuit between the negative pole and the positive pole can be prevented. Therefore, the charge/discharge cycle life can significantly be lengthened.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: October 20, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichiro Kawakami, Shinya Mishina, Naoya Kobayashi
  • Patent number: 5604056
    Abstract: An electrolytic cell and process for treating an alkali metal electrode, wherein an additive is applied to the electrode so as to result in a predominately additive interface between the electrode and an electrolyte. The additive interface is ionically conductive yet non-ionic. In addition, the additive interface is substantially inert when in contact with the electrode, while being substantially insoluble in the electrolyte.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: February 18, 1997
    Inventors: Denis G. Fauteux, Martin Van Buren, Jie Shi
  • Patent number: 5491041
    Abstract: Solid-state rechargeable secondary batteries comprise a composite cathode selected from the group consisting of LiNiO.sub.2, LiCoO.sub.2, and LiMn.sub.2 O.sub.4, a separator composed of a solid polymer electrolyte with propylene carbonate as a plasticizer, and a composite anode consisting of graphite, a solid polymer electrolyte containing propylene carbonate and 12-crown-4 ether.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: February 13, 1996
    Assignee: EIC Laboratories, Inc.
    Inventors: Kuzhikalail M. Abraham, Mohamed Alamgir, Zhiping Jiang
  • Patent number: 5451475
    Abstract: A nickel positive electrode for an alkaline storage battery comprises an active material mixture mainly composed of nickel hydroxide and a conductive support. The active material mixture contains at least one member selected from the group consisting of cobalt, cobalt hydroxide and cobalt oxide, and carbon powder having a lattice constant "d" of a (002) plane such that 3.35 .ANG.<d.ltoreq.3.45 .ANG..
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: September 19, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuhiro Ohta, Hiromu Matsuda, Munehisa Ikoma, Nobuyasu Morishita, Yoshinori Toyoguchi
  • Patent number: 5358801
    Abstract: Vanadium oxide cathode mixtures which comprise a vanadium oxide cathode material in combination with one or more surface active agents and the incorporation thereof in electrochemical cells as a means for enhancing cumulative capacity and cycling capacity of such cells.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: October 25, 1994
    Assignee: Valence Technology, Inc.
    Inventor: Ralph J. Brodd
  • Patent number: 5346783
    Abstract: This invention relates to rechargeable manganese dioxide cells (usually alkaline cells with zinc anodes or cells having non-aqueous electrolyte and lithium anodes), and particularly to the cathodes therefore. In keeping with the present invention, the cathodes are essentially unconstrained--that is, no cage is used in the cell between the cathodes and the anodes. The cathode is restricted from significantly changing its dimensions during discharge of the cell, when it is inclined to swell--as opposed to the tendency of the cathode to contract during a charge cycle. The cathode substantially fills the entire space allotted for it within the cell, with a light accommodation for height-wise or longitudinal expansion or growth of the cathode of bobbin-type cells, or crosswise expansion or growth of button-type cells.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: September 13, 1994
    Assignee: Battery Technologies Inc.
    Inventors: Klaus Tomantschger, Christopher Michalowski
  • Patent number: 4865927
    Abstract: Alkaline MnO.sub.2 /Zn cells having nickel-plated steel cups as the cathode collector show deterioration of their discharge characteristics after high-temperature storage, which can be prevented by an additive in the cathode paste which forms a strong complex with nickel. Nickel oxide layers of high ohmic resistance, which are the cause of the contact resistance between the cathode and the nickel coating of the steel cup, are accordingly dissolved or transformed. Imidazole, 2-picolinic acid, dimenthylglyoxime, 4,5-dihydroxbenzene-1,3-disulfonic acid and 1,10-phenanthroline are particularly effective additives for compounding into the cathode. Preferred amounts are between 0.001 wt. % and 1 wt. %.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: September 12, 1989
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Helmut Laig-Horstebrock, Winfried Krey
  • Patent number: 4781999
    Abstract: The invention provides a method of stabilizing a primary electrochemical cell which includes at least one reactive anode made of a metal selected from the group constituted by zinc, aluminum, and magnesium, the method consisting in adding a stabilizer to said electrode, the stabilizer concentration lying in the range 0.001% to 1% by weight of electrode metal, and the stabilizer comprising at least one alkyl and polyethoxylalcohol sulfide satisfying the following formula:R--S--(CH.sub.2).sub.2 --(O--CH.sub.2 --CH.sub.2 --).sub.n --OH (1)in which:R is an alkyl radical which may optionally be branched, an aryl radical, or an alkylaryl radical; andn lies in the range 2 to 100.The invention also provides an anode obtained by the above method, and a primary electrochemical cell having an alkaline or a saline electrolyte and including such an anode.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: November 1, 1988
    Assignee: Societe les Piles Wonder
    Inventor: Rene Vignaud
  • Patent number: 4605603
    Abstract: Disclosed is a hermetically sealed metalic oxide-hydrogen battery comprising a metallic oxide as a positive electrode active material and hydrogen as a negative electrode active material, characterized in that the negative electrode is composed of a hydrogen storage alloy represented by the formula:MNi.sub.5-(x+y) Mn.sub.x Al.sub.ywherein M is a mischmetal (Mm), a lanthanum element or a lanthanum-rich mischmetal (Lm); and x and y are values satisfying relations of 0<x<1, 0<y<1 and 0.2.ltoreq.x+y.ltoreq.1, respectively.An internal pressure of the battery in this invention does not increase even when a charge/discharge cycle has been carried out for a long period of time, and a discharge capacity can be maintained at a high level over a prolonged period. The battery of this invention is superior to the conventional metallic oxide-hydrogen battery and has a great industrial value.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: August 12, 1986
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Motoya Kanda, Yuji Sato
  • Patent number: 4569854
    Abstract: Formed negative plates for use in dry charge storage batteries are treated with an aqueous solution of an oxidation inhibiting agent such as salicyclic acid or 2-naphthol, and then dried.
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: February 11, 1986
    Assignee: Tiegel Manufacturing Company
    Inventor: Paul C. Wegner