Nitrogen Containing Material Patents (Class 429/108)
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Patent number: 9006457Abstract: The invention relates to reactive ionic liquids containing organic cations with groups or substituents which are susceptible to electrochemical reduction and anions obtained from fluoroalkyl phosphates, fluoroalkyl phosphinates, fluoroalkyl phosphonates, acetates, triflates, imides, methides, borates, phosphates and/or aluminates, for use in electrochemical cells, such as lithium ion batteries and double-layer capacitors.Type: GrantFiled: March 31, 2009Date of Patent: April 14, 2015Assignee: BASF SEInventors: Michael Schmidt, Nikolai (Mykola) Ignatyev, William-Robert Pitner
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Patent number: 8927130Abstract: An electrolyte for a redox flow battery and a redox flow battery including the electrolyte, the electrolyte including a metal-ligand coordination compound as a cation and an anion containing at least four atoms linked to each other by a straight chain in a certain direction.Type: GrantFiled: February 16, 2012Date of Patent: January 6, 2015Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB FoundationInventors: Jun-young Mun, Seung-sik Hwang, Doo-yeon Lee, Hyung-tae Kim, Young-gyu Kim, Oh-min Kwon, Tae-eun Yim
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Patent number: 8852777Abstract: A method for preparing a redox flow battery electrolyte is provided. In some embodiments, the method includes the processing of raw materials containing sources of chromium ions and/or iron ions. The method further comprises the removal of impurities such as metal ions from those raw materials. In some embodiments, a reductant may be used to remove metal impurities from an aqueous electrolyte containing chromium ions and/or nickel ions. In some embodiments, the reductant is an amalgam. In some embodiments, the reductant is a zinc amalgam. Also provided is a method for removing ionic impurities from an aqueous acid solution. Further provided a redox flow battery comprising at least one electrolyte prepared from the above-identified methods.Type: GrantFiled: December 4, 2009Date of Patent: October 7, 2014Assignee: Deeya Energy, Inc.Inventors: Majid Keshavarz, Aravamuthan Varadarajan
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Publication number: 20140239906Abstract: Flow batteries including one or more metals complexed by one or more redox-active ligands are disclosed herein. In a general embodiment, the flow battery includes an electrochemical cell having an anode portion, a cathode portion and a separator disposed between the anode portion and the cathode portion. Each of the anode portion and the cathode portion includes one or more metals complexed by one or more redox-active ligands. The flow battery further includes an anode electrode disposed in the anode portion and a cathode electrode disposed in the cathode portion.Type: ApplicationFiled: February 25, 2014Publication date: August 28, 2014Applicant: Sandia CorporationInventors: Travis Mark Anderson, Mitchell Anstey, Neil C. Tomson
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Publication number: 20140170460Abstract: Provided is a redox flow battery including a positive electrode cell having a positive electrode and a catholyte solution; a negative electrode cell having a negative electrode and an anolyte solution; and an ion-exchange membrane disposed between the positive electrode cell and the negative electrode cell, wherein the catholyte solution and the anolyte solution each includes a non-aqueous solvent, a supporting electrolyte, and an electrolyte, and wherein the electrolyte includes a metal-ligand coordination compound, and at least one of the metal-ligand coordination compounds includes a ligand having an electron donating group.Type: ApplicationFiled: November 12, 2013Publication date: June 19, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joung-won PARK, Myung-jin LEE, Basab ROY, Duk-jin OH, Doo-yeon LEE
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Patent number: 8658304Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.Type: GrantFiled: October 29, 2012Date of Patent: February 25, 2014Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
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Patent number: 8642202Abstract: An organic electrolyte solution for use in a redox flow battery and the redox flow battery including the organic electrolyte solution has a high energy density because re-precipitation is prevented in the organic electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.Type: GrantFiled: January 28, 2011Date of Patent: February 4, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-young Sun, Joung-won Park, Doo-yeon Lee, Seung-uk Son
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Publication number: 20140030571Abstract: The present invention provides a secondary cell having a negative electrode compartment and a positive electrode compartment, which are separated by an alkali ion conductive electrolyte membrane. An alkali metal negative electrode disposed in the negative electrode compartment oxidizes to release alkali ions as the cell discharges and reduces the alkali ions to alkali metal during recharge. The positive electrode compartment includes a positive electrode contacting a positive electrode solution that includes an alkali metal compound and a metal halide. The alkali metal compound can be selected from an alkali halide and an alkali pseudo-halide. During discharge, the metal ion reduces to form metal plating on the positive electrode. As the cell charges, the metal plating oxidizes to strip the metal plating to form metal halide or pseudo halide or corresponding metal complex.Type: ApplicationFiled: September 27, 2013Publication date: January 30, 2014Applicant: Ceramatec, Inc.Inventors: Sai Bhavaraju, Mathew Robins, Chett Boxley
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Patent number: 8481192Abstract: A redox flow battery has a high energy density and an excellent charge and discharge efficiency because re-precipitation is prevented in an electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.Type: GrantFiled: July 1, 2010Date of Patent: July 9, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-young Sun, Joung-won Park, Seung-sik Hwang, Doo-yeon Lee, Myung-jin Lee
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Publication number: 20130045400Abstract: Provided are a redox flow battery (RF battery) in which a positive electrode electrolyte and a negative electrode electrolyte are supplied to a battery cell including a positive electrode, a negative electrode, and a membrane, to charge and discharge the battery, and a method of operating the RF battery. The positive electrode electrolyte contains a manganese ion, or both of a manganese ion and a titanium ion. The negative electrode electrolyte contains at least one type of metal ion selected from a titanium ion, a vanadium ion, a chromium ion, a zinc ion, and a tin ion. The RF battery can have a high electromotive force and can suppress generation of a precipitation of MnO2 by containing a titanium ion in the positive electrode electrolyte, or by being operated such that the positive electrode electrolyte has an SOC of not more than 90%.Type: ApplicationFiled: March 8, 2011Publication date: February 21, 2013Applicant: Sumitomo Electric Industries, Ltd.Inventors: Yongrong Dong, Toshio Shigematsu, Takahiro Kumamoto, Michiru Kubata
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Publication number: 20130004819Abstract: An electrolyte for a redox flow battery and a redox flow battery including the electrolyte, the electrolyte including a metal-ligand coordination compound as a cation and an anion containing at least four atoms linked to each other by a straight chain in a certain direction.Type: ApplicationFiled: February 16, 2012Publication date: January 3, 2013Applicants: Seoul National University R&DB Foundation, Samsung Electronics Co., Ltd.Inventors: Jun-young Mun, Seung-sik Hwang, Doo-yeon Lee, Hyung-tae Kim, Young-gyu Kim, Oh-min Kwon, Tae-eun Yim
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Publication number: 20120244406Abstract: Iron-sulfide redox flow battery (RFB) systems can be advantageous for energy storage, particularly when the electrolytes have pH values greater than 6. Such systems can exhibit excellent energy conversion efficiency and stability and can utilize low-cost materials that are relatively safer and more environmentally friendly. One example of an iron-sulfide RFB is characterized by a positive electrolyte that comprises Fe(III) and/or Fe(II) in a positive electrolyte supporting solution, a negative electrolyte that comprises S2? and/or S in a negative electrolyte supporting solution, and a membrane, or a separator, that separates the positive electrolyte and electrode from the negative electrolyte and electrode.Type: ApplicationFiled: March 25, 2011Publication date: September 27, 2012Applicant: Battelle Memorial InstituteInventors: Guanguang Xia, Zhenguo Yang, Liyu Li, Soowhan Kim, Jun Liu, Gordon L. Graff
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Publication number: 20120171531Abstract: A metal-ligand coordination compound containing an aliphatic ligand useful as a catholyte and/or an anolyte that enables the provision of a redox flow battery having high energy efficiency and charge/discharge efficiency.Type: ApplicationFiled: October 5, 2011Publication date: July 5, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Joung-won Park, Myung-jin Lee, Doo-yeon Lee, Seung-sik Hwang, Duk-jin Oh, Seung Uk Son
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Publication number: 20120171541Abstract: A redox flow battery. A metal-ligand coordination compound including an aromatic ligand that contains an electron withdrawing group is used as the catholyte and/or the anolyte so that a redox flow battery having high energy density and excellent charge/discharge efficiency may be provided.Type: ApplicationFiled: October 6, 2011Publication date: July 5, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Joung-won Park, Myung-jin Lee, Seung-sik Hwang, Doo-yeon Lee, Duk-jin Oh
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Publication number: 20120171530Abstract: Provided are redox flow batteries employing supporting electrolyte of a ring- or spiro-type structure and having high energy efficiencies and energy densities.Type: ApplicationFiled: July 18, 2011Publication date: July 5, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Myung-jin LEE, Duk-jin Oh, Seung-sik Hwang
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Patent number: 8114538Abstract: An electrocatalyst for an electrochemical cell of the present invention includes a metal catalyst containing metal that has a metal oxidation potential of 0.5V or higher to 1.5V or lower, and is directly involved in an electrode reaction. Further, the electrocatalyst includes an aromatic heterocyclic compound having a six-membered cyclic structure containing a heteroatom, wherein the heteroatom has a metal coordination capacity that is not directly involved in the electrode reaction. The aromatic heterocyclic compound is heterogeneously adsorbed and coordinated on a surface of the metal catalyst while interposing the heteroatom therebetween.Type: GrantFiled: March 30, 2007Date of Patent: February 14, 2012Assignee: Nissan Motor Co., Ltd.Inventors: Toshihiro Takekawa, Hiroshi Ogawa, Hidenobu Shiroishi
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Patent number: 8080327Abstract: An electrical storage device utilizing a pyrazine-based cyanoazacarbon or pyrazine-based cyanoazacarbon polymer as a redox active material which can undergo both oxidation and reduction. The device has an ion selective barrier with a cathode side and an anode side; a cathode compartment which is functionally attached to the cathode side of the ion selective barrier and contains a mixture of pyrazine-based cyanoazacarbons, solvent, and positive ions of pyrazine-based cyanoazacarbons; an anode compartment which is functionally attached to the anode side of the ion selective barrier and contains a mixture of pyrazine-based cyanoazacarbons, solvent, and negative ions of pyrazine-based cyanoazacarbons; a cathode which is electrically connected to the cathode compartment; and an anode which is electrically connected to the anode compartment.Type: GrantFiled: June 27, 2011Date of Patent: December 20, 2011Assignee: Vinazene, Inc.Inventor: Paul George Rasmussen
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Patent number: 8026339Abstract: A polysulfone is provided with a nitrogen-containing functional group having an affinity to an acid, an electrolyte membrane using the polysulfone, and a fuel cell including the electrolyte membrane. In particular, the polysulfone includes a nitrogen-containing functional group that has an affinity to an acid, such as a phosphoric acid, thereby having an excellent acid retaining ability. In an electrolyte membrane including the polysulfone and an acid, the amount of the retained acid can be controlled. Therefore, the electrolyte membrane has a high ionic conductivity and a high mechanical strength. A polysulfone blend of polysulfone and a thermoplastic resin prevents the dissolution of polysulfone by phosphoric acid, so that an electrolyte membrane using the polysulfone blend has an improved durability. A cross-linked reaction product of polysulfone, a cross-linking agent and a polymerization product of polysulfone, a thermoplastic resin, and a cross-linking agent strongly resist a phosphoric acid.Type: GrantFiled: June 1, 2007Date of Patent: September 27, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Chung-kun Cho, Myung-jin Lee, Myeong-soon Kang
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Patent number: 6623301Abstract: A plug connector, especially for SMD plugs having plug-connector elements provided with shield plates which shield the electric contacts. The shield plates, in turn, in the coupled condition, bear against one another over substantially their entire area and are fixed with snap fastenings on the respective plug-connector elements. Soldering tabs extend beyond the plug-connector elements and are provided for electrically contacting the shield plates. Preferably SMD leads are formed on the shield plates.Type: GrantFiled: April 22, 2002Date of Patent: September 23, 2003Assignee: Erni Elektroapparate GmbHInventor: Juergen Lappoehn
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Patent number: 6492057Abstract: An alkaline electrochemical cell having a hydrogen absorbing alloy negative electrode. The electrochemical cell comprises an alkaline electrolyte comprising an additive material which reduces cell pressure by decreasing hydrogen gas evolution.Type: GrantFiled: April 14, 1999Date of Patent: December 10, 2002Assignee: Ovonic Battery Company, Inc.Inventors: Stanford R. Ovshinsky, Srinivasan Venkatesan, Boyko Alajov, Kevin Fok, Thomas J. Hopper, James L. Strebe
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Publication number: 20020004164Abstract: The invention relates to a galvanosorptive reaction cell with closed substance circulation for the conversion of low temperature heat, preferably of waste heat into useful electrical work. The reaction cell and the accompanying isobaric substance circuit are presented. The galvanosorptive reaction process inside the cell is carried out polytropically with an electrostatic auxiliary voltage, which is superimposed onto the inherent voltage of the cell. In this way, not only free but, with cooling of the reaction system, also substance-bound reaction work can be extracted from the reaction system. The electrical energy yield and the power density of galvanosorptive reaction cell are thereby increased many times over.Type: ApplicationFiled: October 31, 1997Publication date: January 10, 2002Inventor: PETER VINZ
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Patent number: 6013192Abstract: The present invention relates to a dry composition of materials to be used n a battery system. The dry composition comprises a mixture consisting of sodium hydroxide and sodium oxide. In a first reservoir in the battery system, the mixture is present in an amount sufficient to form with water a heated sodium hydroxide electrolyte solution having a 15% by weight concentration of sodium hydroxide. In a second reservoir in the battery system, the mixture is present in an amount sufficient to form with water a heated sodium hydroxide electrolyte solution having to up to about 75% by weight concentration of sodium hydroxide. The present invention also relates to a battery system and a method for generating electrical power which utilize the aforementioned dry composition of materials.Type: GrantFiled: September 16, 1997Date of Patent: January 11, 2000Assignee: The United States of America as represented by the Secretary of the NavyInventors: Steven P. Tucker, Raymond W. Roberts, Eric G. Dow, James R. Moden
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Patent number: 5496662Abstract: The present invention concerns an electrode for an electrochemical primary cell, the electrode comprising a first electron conducting compound and a second ion conducting compound which consists of a sulfur-containing polymer with a repeating unit which contains a polyether, and which can contain an ionizable salt, characterized in that the backbone of said polymer contains bonds which render it capable of reversible oxidation and reduction. Preferably, said repeating unit is a polyether of the following type, containing two sulfur-containing ternary amine terminal groups: ##STR1## where R is a polyether selected from polyethylene oxide, polypropylene oxide, and their statistical, alternating, block and graft polyether copolymers.Type: GrantFiled: October 20, 1994Date of Patent: March 5, 1996Assignee: Alcatel Alsthom Compagnie Generale D'ElectriciteInventors: Xavier Andrieu, Be/ atrice Rambla
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Patent number: 5317105Abstract: An EMI/RFI gasket provides a barrier to EMI and RFI radiation transmission to and from electronic circuits within an electronic system chassis having receptacles that receive electrical connectors and an electrically grounded cover plate that connects the chassis to an electrical ground. The EMI/RFI gasket helps to provide a 360.degree. EMI/RFI barrier for the electronic system chassis. The EMI/RFI gasket is a flexible, electrically-conductive material with sufficient surface area to adhere and electrically connect to the cover plate. The EMI/RFI gasket has a receiving slot that is symmetrical about a longitudinal axis and a latitudinal axis of the gasket plate. A plurality of deflected teeth formed from the gasket plate are positioned around the receiving slot and deflected from the gasket plate to contact the connector at points separated by not greater than a predetermined distance. The predetermined distance is at least in part a function of the expected EMI and RFI radiation wavelengths.Type: GrantFiled: December 18, 1992Date of Patent: May 31, 1994Assignee: Alcatel Network Systems, Inc.Inventor: William F. Weber
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Patent number: 4481266Abstract: An improved porous cathode structure for use in a battery having a reactive metal electrode and flowed electrolyte. The cathode is preferably formed of an electrically conducting porous material with categorically active surface at an interface with the electrolyte. Alternatively, the cathode may be of an electrochemically reducible porous material and defines an active surface.Structure is provided for delivering electrochemically reducible cathode reactant material continuously through the cathode to the cathode active surface during operation of the battery. The reactant material is delivered in an amount required to be reduced at the active surface to maintain high energy discharge rate with minimum amount of reactant material being utilized. The reactant material, in the illustrated embodiment, is provided from a storage supply and delivered to the porous cathode as needed during operation of the battery.Type: GrantFiled: March 25, 1983Date of Patent: November 6, 1984Inventors: Ernest L. Littauer, William R. Momyer
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Patent number: 4439503Abstract: An organic cathode depolarizer for a non-aqueous electrochemical cell system having an active metal anode, a cathode and a non-aqueous electrolyte is disclosed which is represented by the formula ##STR1## where R is a group selected from those consisting of alkyl, alkoxy, phenyl or phenoxy groups and where X.sub.1 and X.sub.2 are halogens.Type: GrantFiled: June 21, 1983Date of Patent: March 27, 1984Assignee: Honeywell Inc.Inventor: Narayan Doddapaneni
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Patent number: 4410606Abstract: A thermally regenerative electrochemical system including an electrochemical cell with two water-based electrolytes separated by an ion exchange membrane, at least one of the electrolytes containing a complexing agent and a salt of a multivalent metal whose respective order of potentials for a pair of its redox couples is reversible by a change in the amount of the complexing agent in the electrolyte, the complexing agent being removable by distillation to cause the reversal.Type: GrantFiled: April 21, 1982Date of Patent: October 18, 1983Inventors: Raouf O. Loutfy, Alan P. Brown, Neng-Ping Yao
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Patent number: H1544Abstract: The addition of cathode materials comprising Cu.sup.++, Fe.sup.+++, Cr.sup.+++ or Au.sup.+++, in the form of salts such as the nitrate or halide, e.g. Fe(NO.sub.3).sub.3 or CuCl.sub.2, to low melting nitrate electrolyte cells increases cell potential. Other ions such as Co.sup.++, Eu.sup.+++, La.sup.+++, Ni.sup.++, Mn.sup.++, Ce.sup.+++, Pr.sup.+++, Nd.sup.+++, Gd.sup.+++, Sm.sup.+++ and Tb.sup.+++, in the form of salts thereof, can also be used, but yield smaller cell potentials. Such cathodic materials in the form of a suitable salt, such as a nitrate or halide, e.g. Fe(NO.sub.3).sub.3 or CuCl.sub.2, are added to low melting fused nitrate electrolytes, e.g. a LiNO.sub.3, KNO.sub.3 mixture, in a concentration sufficient to increase cell potential, using Li or Ca anodes. A suitable metal current collector such as a Ni screen can be used as a cathode. The above cathodic materials can be used in conjunction with other cathodic materials such as AgNO.sub.3, which undergoes reduction to the free metal.Type: GrantFiled: August 6, 1990Date of Patent: June 4, 1996Assignee: The United States of America as represented by the Secretary of the NavyInventor: Melvin H. Miles