Chemically Specified Inorganic Solvent Other Than Water Patents (Class 429/344)
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Patent number: 11901593Abstract: A charge/discharge method of an air battery is a charge/discharge method of an air battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte liquid containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, the nonaqueous electrolyte liquid being interposed between the positive electrode and the negative electrode, the charge/discharge method includes: discharging the air battery; and supplying a charging liquid different from the nonaqueous electrolyte liquid from the outside to the inside of the air battery so that a discharge product generated by the discharging is desorbed from the positive electrode while being in the form of a solid.Type: GrantFiled: July 19, 2021Date of Patent: February 13, 2024Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masako Yokoyama, Masahisa Fujimoto, Mitsuhiro Hibino
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Patent number: 11735771Abstract: The present application relates to an electrolytic solution and an electrochemical device using same. The electrolytic solution of the present application comprises a compound containing a —CN functional group and a compound containing a P—O bond. By introducing the compound containing a —CN functional group and the compound containing a P—O bond into the electrolytic solution, an active material can be better protected, thereby effectively improving floatation performance and nailing performance of a battery, and cycle impedance of the battery.Type: GrantFiled: January 20, 2020Date of Patent: August 22, 2023Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Wenqiang Li, Shuirong Zhang, Chunrui Xu, Juan Ma
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Patent number: 10892520Abstract: A class of sulfonimide salts for solid-state electrolytes can be synthesized based on successive SNAr reactions of fluorinated phenyl sulfonimides: Fluorinated Aryl Sulfonimide Tags (FAST). The chemical and electrochemical oxidative stability of these FAST salts as well as other properties like solubility, Lewis basicity, and conductivity can be tuned by introducing different numbers and types of nucleophilic functional groups to the FAST salt scaffold.Type: GrantFiled: January 19, 2018Date of Patent: January 12, 2021Assignees: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeremiah Allen Johnson, Yang Shao-Horn, Robinson Anandakathir, Mao Chen, Shuting Feng, Livia Giordano, Mingjun Huang, Wenxu Zhang
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Patent number: 10879568Abstract: A method for forming a thin film lithium ion battery includes, under a same vacuum seal, forming a stack of layers on a substrate including an anode layer, an electrolyte, a cathode layer and a first cap over the stack of layers to protect the layers from air. Under a same vacuum seal, the stack of layers is etched with a non-reactive etch process in accordance with a hardmask, and a second cap layer is formed over the stack of layers without breaking the vacuum seal. Contacts coupled to the cathode and the anode are formed.Type: GrantFiled: July 3, 2018Date of Patent: December 29, 2020Assignee: International Business Machines CorporationInventors: Effendi Leobandung, Ghavam G. Shahidi
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Patent number: 9620769Abstract: To provide a power storage device having excellent charge/discharge cycle characteristics and a high charge/discharge capacity. The following electrode is used as an electrode of a power storage device: an electrode including a current collector and an active material layer provided over the current collector. The active material layer includes a plurality of whisker-like active material bodies. Each of the plurality of whisker-like active material bodies includes at least a core and an outer shell provided to cover the core. The outer shell is amorphous, and a portion between the current collector and the core of the active material bodies is amorphous. Note that a metal layer may be provided instead of the current collector, the active material bodies do not necessarily have to include the core, and a mixed layer may be provided between the current collector and the active material layer.Type: GrantFiled: June 8, 2012Date of Patent: April 11, 2017Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Toshihiko Takeuchi, Teppei Oguni, Takeshi Osada
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Patent number: 9437899Abstract: Embodiments of a solid-state electrolyte comprising magnesium borohydride, polyethylene oxide, and optionally a Group IIA or transition metal oxide are disclosed. The solid-state electrolyte may be a thin film comprising a dispersion of magnesium borohydride and magnesium oxide nanoparticles in polyethylene oxide. Rechargeable magnesium batteries including the disclosed solid-state electrolyte may have a coulombic efficiency ?95% and exhibit cycling stability for at least 50 cycles.Type: GrantFiled: February 10, 2014Date of Patent: September 6, 2016Assignee: Battelle Memorial InstituteInventors: Yuyan Shao, Jun Liu, Tianbiao Liu, Guosheng Li
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Patent number: 9362594Abstract: A method for forming a solvo-ionic liquid suitable for use as an electrolyte in an electrochemical cell is provided. The solvo-ionic liquid, a mixture including a multidentate ethereal solvent and magnesium borohydride, can be a liquid, a gel or a solid at room temperature and generally has high thermal stability including virtually no volatility at a typical cell operating temperature. An electrochemical cell having a solvo-ionic liquid as electrolyte is also disclosed. The electrochemical cell will typically be a rechargeable magnesium battery, having an anode suitable to accommodate magnesium oxidation during battery discharge.Type: GrantFiled: July 22, 2015Date of Patent: June 7, 2016Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventor: Rana Mohtadi
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Patent number: 9362593Abstract: A method for forming a solvo-ionic liquid suitable for use as an electrolyte in an electrochemical cell is provided. The solvo-ionic liquid, a mixture including a multidentate ethereal solvent and magnesium borohydride, can be a liquid, a gel or a solid at room temperature and generally has high thermal stability including virtually no volatility at a typical cell operating temperature. An electrochemical cell having a solvo-ionic liquid as electrolyte is also disclosed. The electrochemical cell will typically be a rechargeable magnesium battery, having an anode suitable to accommodate magnesium oxidation during battery discharge.Type: GrantFiled: November 13, 2014Date of Patent: June 7, 2016Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventor: Rana Mohtadi
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Patent number: 9293768Abstract: According to one embodiment, there is provided a battery electrode. The battery electrode includes a titanium oxide compound having a monoclinic titanium dioxide crystal structure and a basic polymer.Type: GrantFiled: August 3, 2011Date of Patent: March 22, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yasuhiro Harada, Norio Takami, Hiroki Inagaki, Keigo Hoshina, Yuki Otani
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Patent number: 9099756Abstract: Flame retardant electrolyte solutions for rechargeable lithium batteries and lithium batteries including the electrolyte solutions are provided. The flame retardant electrolyte solution includes a lithium salt, a linear carbonate-based solvent, at least one ammonium cation, a phosphoric acid-based solvent, and an additive including oxalatoborate.Type: GrantFiled: October 20, 2009Date of Patent: August 4, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Nam-Soon Choi, Irina Profatilova, Sae-Weon Roh, Yong-Chul Park, Sung-Soo Kim
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Patent number: 8951664Abstract: An ionic liquid having high electrochemical stability and a low melting point. An ionic liquid represented by the following general formula (G0) is provided. In the general formula (G0), R0 to R5 are individually any of an alkyl group having 1 to 20 carbon atoms, a methoxy group, a methoxymethyl group, a methoxyethyl group, and a hydrogen atom, and A? is a univalent imide-based anion, a univalent methide-based anion, a perfluoroalkyl sulfonic acid anion, tetrafluoroborate, or hexafluorophosphate.Type: GrantFiled: May 24, 2012Date of Patent: February 10, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kyosuke Ito, Toru Itakura
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Publication number: 20140342249Abstract: A rechargeable lithium metal or lithium-ion cell comprising a cathode having a cathode active material and/or a conductive supporting structure, an anode having an anode active material and/or a conductive supporting nano-structure, a porous separator electronically separating the anode and the cathode, a highly concentrated electrolyte in contact with the cathode active material and the anode active material, wherein the electrolyte contains a lithium salt dissolved in an ionic liquid solvent with a concentration greater than 3 M. The cell exhibits an exceptionally high specific energy, a relatively high power density, a long cycle life, and high safety with no flammability.Type: ApplicationFiled: May 16, 2013Publication date: November 20, 2014Inventors: Hui He, Bor Z Jang, Yanbo Wang, Aruna Zhamu
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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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Patent number: 8795868Abstract: A rechargeable molten salt electrolyte battery has an anode comprising lithium, a cathode electrode comprising a conductive metal that is compatible with the nitrate melt, an electrolyte comprising lithium nitrate or lithium nitrate mixtures with other nitrates which electrolyte is capable of becoming an ionic conductive liquid upon being heated above its melting point, wherein oxygen for reaction at the cathode or within the melt is provided from an external source to be delivered to the cathode through the electrolyte and provision is made to collect lithium oxide formed during discharge to be reconstituted as lithium ions and oxygen during recharge. At least a portion of the oxygen reduction reaction is provided by a nitrate ion pathway.Type: GrantFiled: March 13, 2013Date of Patent: August 5, 2014Inventor: Melvin H. Miles
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Patent number: 8785055Abstract: Novel electric battery systems are disclosed utilizing selected ionic liquids as electrolytes and selected metals and metal oxides as electrodes. The ionic liquids utilize a substituted imidazolium cation, which does not have the corrosive safety and environmental concerns associated with corrosive acid and alkali electrolytes.Type: GrantFiled: September 7, 2010Date of Patent: July 22, 2014Assignee: The United States of America as Represented by the Secretary of the NavyInventor: Thomas E. Sutto
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Publication number: 20140154592Abstract: An electrolyte for a magnesium battery includes a magnesium salt having the formula MgBxHy where x=11?12 and y=11?12. The electrolyte also includes a solvent, the magnesium salt being dissolved in the solvent. Various solvents including aprotic solvents and molten salts such as ionic liquids may be utilized.Type: ApplicationFiled: March 15, 2013Publication date: June 5, 2014Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.Inventor: Toyota Motor Engineering & Manufacturing North America, Inc
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Patent number: 8691450Abstract: A three-dimensional battery having a plurality of non-laminar electrodes including a plurality of cathodes and a plurality of silicon anodes, and an electrolyte solution in fluid contact with the plurality of electrodes, wherein the electrolyte solution includes a selected one of lithium (bis)trifluoromethanesulfonimide (LiTFSI), LiClO4, LiCF3SO3, and LiBOB.Type: GrantFiled: August 5, 2009Date of Patent: April 8, 2014Assignee: Enovix CorporationInventors: Venkat Srinivasan, Robert Spotnitz
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Patent number: 8628885Abstract: A secondary battery capable of improving battery characteristics is provided. The secondary battery includes a cathode 21 containing a cathode active material capable of inserting and extracting an electrode reactant, an anode 22 containing an anode active material capable of inserting and extracting the electrode reactant, and an electrolyte containing a solvent and an electrolyte salt. At least one of the cathode 21, the anode 22, and the electrolyte contains a radical scavenger compound. The radical scavenger compound is a compound in which a group having a radical scavenger function exists as a matrix, to which one or more carboxylic metal bases or one or more sulfonic metal bases are introduced. Chemical stability of the cathode 21, the anode 22, or the electrolyte containing the radical scavenger compound is improved. Thus, at the time of charge and discharge, decomposition reaction of the electrolytic solution is easily inhibited.Type: GrantFiled: June 30, 2009Date of Patent: January 14, 2014Assignee: Sony CorporationInventors: Hiroyuki Yamaguchi, Shunsuke Saito, Toru Odani, Masayuki Ihara, Tadahiko Kubota
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Publication number: 20130344399Abstract: Novel electric battery systems are disclosed utilizing selected ionic liquids as electrolytes and selected metals and metal oxides as electrodes. The ionic liquids utilize a substituted imidazolium cation, which does not have the corrosive safety and environmental concerns associated with corrosive acid and alkali electrolytes.Type: ApplicationFiled: September 7, 2010Publication date: December 26, 2013Applicants: Chief of Naval Research, Office of CounselInventor: Thomas E. Sutto
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Publication number: 20130337345Abstract: An electrochemical device includes an electrolyte; a cathode; and an anode including a negative active material of Formula LixNi?Mn?Co?M1?M2mO2-zM3z?; where M1 is Mg, Zn, Al, Ga, B, Zr, Ti, V, Cr Ag, Cu, Na, Mn, Fe, Cu, or Zr; M2 is P, S, Si, W, or Mo; M3 is F, Cl and N; 0<x; 0???1; 0???1; 0???1; 0???1; 0?m?0.5; 0?z?0.5; and 0?z??0.5, where at least one of ?, ?, and ? is greater than 0.Type: ApplicationFiled: June 15, 2012Publication date: December 19, 2013Inventors: Ali Abouimrane, Khalil Amine
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Publication number: 20130330637Abstract: The object of an exemplary embodiment of the invention is to provide a separator for an electric storage device which has small thermal shrinkage under high-temperature environment, and in which the increase of the battery temperature can be suppressed. An exemplary embodiment of the invention is a separator for an electric storage device, which comprises a cellulose derivative represented by a prescribed formula. The separator for an electric storage device can be obtained, for example, by treating a cellulose separator containing cellulose with a phosphate or a phosphite.Type: ApplicationFiled: February 21, 2012Publication date: December 12, 2013Applicant: NEC CORPORATIONInventors: Kazuaki Matsumoto, Kazuhiko Inoue
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Publication number: 20130266875Abstract: An exemplary embodiment of the present invention is a secondary battery which comprises a negative electrode and a battery electrolyte liquid comprising a supporting salt and a non-aqueous electrolyte solvent; wherein the negative electrode is obtained by pre-forming a SEI coating film on a negative electrode structure which is formed by binding a negative electrode active substance comprising a metal (a). that can be alloyed with lithium, a metal oxide (b) that can absorb and desorb lithium ion and a carbon material (c) that can absorb and desorb lithium ion, to a negative electrode current collector with a negative electrode binder, and wherein the non-aqueous electrolyte solvent contains at least an ionic liquid.Type: ApplicationFiled: June 23, 2011Publication date: October 10, 2013Applicant: NEC CORPORATIONInventors: Kazuaki Matsumoto, Daisuke Kawasaki, Masahiro Suguro, Midori Shimura, Yoko Hashizume
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Publication number: 20130224608Abstract: A positive electrode active material having a charge and discharge range of 4.5 V or more with respect to lithium metal and used for a secondary battery excellent in charge and discharge characteristics and cycle characteristics is provided. The positive electrode active material B for a secondary battery according to the exemplary embodiment is obtained by subjecting a positive electrode active material A for a secondary battery having a charge and discharge range of 4.5 V or more with respect to lithium metal to coupling treatment with a coupling agent containing at least fluorine. Further, the positive electrode active material B for a secondary battery according to the exemplary embodiment has a film at least containing fluorine on at least a part of a surface of a positive electrode active material A for a secondary battery having a charge and discharge range of 4.5 V or more with respect to lithium metal.Type: ApplicationFiled: November 16, 2011Publication date: August 29, 2013Applicant: NEC CORPORATIONInventors: Hideaki Sasaki, Takehiro Noguchi
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Patent number: 8460831Abstract: The present invention relates to paste-like masses that can be used in electrochemical elements, comprising a heterogeneous mixture of (A) a matrix containing or comprising at least one organic polymer, precursors thereof, or prepolymers thereof, (B) an electrochemically activatable inorganic or largely inorganic liquid that does not dissolve the matrix or essentially does not dissolve the matrix, and, if required, (C) a powdery solid that is essentially inert relative to the electrochemically activatable liquid.Type: GrantFiled: November 8, 2004Date of Patent: June 11, 2013Assignee: Leclanche' SAInventors: Peter Birke, Gerold Neumann
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Publication number: 20130130126Abstract: Electrochemical cell for high-voltage operation and electrode coatings for the same. The electrochemical cell and electrode coatings of the present invention can preferably withstand charging voltages to at least 5-Volts. In one embodiment, the electrochemical cell can include an anode, a cathode, a separator, and an electrolyte, wherein the anode, the cathode, and the separator are operatively associated with the electrolyte. The cathode can include, for example, a mixture of a metal oxide, an elongated carbon structure, and a conductive material. The metal oxide can be, for example, a lithium-nickel-manganese oxide, such as LiNi0.5Mn1.5O4. The elongated carbon structure can be, for example, a carbon nanotube, a carbon fibril, or a carbon fiber. The conductive material can be, for example, a conductive carbon. The metal oxide, the elongated carbon structure, and the conductive material can be bound together, for example, with a binder.Type: ApplicationFiled: October 12, 2012Publication date: May 23, 2013Applicant: GINER, INC.Inventor: Giner, Inc.
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Publication number: 20130095391Abstract: In a lithium on secondary battery, lithium ions are reversibly absorbed to and released from a negative electrode. A positive electrode includes lithium vanadium phosphate. A non-aqueous electrolytic solution includes fluorinated carbonate as a solvent.Type: ApplicationFiled: September 7, 2012Publication date: April 18, 2013Applicant: FUJI JUKOGYO KABUSHIKI KAISHAInventors: Ken BABA, Yasuyuki Kiya, Takahito Sakuraba
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Publication number: 20130078532Abstract: An electrolyte includes a lithium salt; a polar aprotic solvent; a primary redox shuttle; and a lithium borate cluster salt. The lithium borate cluster salt may be compound of formula Li2B12X12-nHn, LixX10-nHn, where X is F, Cl, Br, or I; and n is an integer ranging from 0 to 12, inclusive.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Inventors: Zonghai Chen, Khalil Amine
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Publication number: 20130052544Abstract: An object of the present invention is to provide a cathode active material which contains small-particle sized and low-crystalline lithium transition metal silicate and which undergoes charge-discharge reaction at room temperature. The cathode active material for a non-aqueous electrolyte secondary battery is characterized by containing a lithium transition metal silicate and exhibits diffraction peaks having half widths of 0.175 to 0.6°, the peaks observed through powder X-ray diffractometry within a 2? range of 5 to 50°.Type: ApplicationFiled: August 30, 2012Publication date: February 28, 2013Applicants: THE FURUKAWA BATTERY CO., LTD, FURUKAWA ELECTRIC CO., LTD.Inventors: Michio OHKUBO, Michihiro SHIMADA, Naoki UNO, Yosuke HIRAYAMA, Toshio TANI, Hidetoshi ABE, Miyu AITA
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Patent number: 8323839Abstract: A nonaqueous electrolyte secondary battery in which the decomposition of an electrolyte solution is reduced exhibits high coulombic efficiency and excellent charge and discharge cycle performance, and has high energy density. This nonaqueous electrolyte secondary battery includes a negative electrode that is formed by depositing a thin film of active material on a collector by a CVD method, sputtering, evaporation, thermal spraying, or plating, wherein the thin film of the active material can lithiate and delithiate and is divided into columns by cracks formed in the thickness direction, and the bottom of each column is adhered to the collector; a positive electrode that can lithiate and delithiate; and a nonaqueous electrolyte solution containing a lithium salt in a nonaqueous solvent. The electrolyte solution contains a compound expressed by a general formula (I).Type: GrantFiled: September 26, 2005Date of Patent: December 4, 2012Assignees: SANYO Electric Co., Ltd., Mitsubishi Chemical CorporationInventors: Noriyuki Tamura, Toshikazu Yoshida, Maruo Kamino, Shin Fujitani, Masahiro Takehara, Makoto Ue
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Publication number: 20120251894Abstract: The inventors of the subject matter of the present disclosure have developed an electrolyte solution usable in a lithium or lithium-ion battery, among other types of batteries that offers one or more of the following: improved stability (e.g., stable discharge capacities even after several cycles), elimination of the risk of unintentionally producing hydrochloric acid, improved thermal stability, and reduced production costs associated with manufacturing a battery. Indeed, the inventors have discovered an unexpected result that by including an additive to a dinnimitride salt (e.g., LiDN), the discharge capacity of the battery may improve beyond what is available in the prior art, including LiPF6. For example, production costs may be decreased since LiDN is not water-sensitive, so precautions to ensure that the compound is not exposed to water may be avoided. Further benefits include thermal stability since LiDN may be more thermally stable when compared to LiPF6.Type: ApplicationFiled: March 30, 2011Publication date: October 4, 2012Applicant: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.Inventors: Monique N. Richard, Alvaro Masias
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Publication number: 20120107695Abstract: Provided is a lithium rechargeable battery including: a cathode plate including a cathode current collector layer and a cathode layer; an anode plate spaced from the cathode plate, the cathode plate including an anode current collector layer and an anode layer; and a polymer electrolyte disposed between the cathode plate and the anode plate, wherein at least one of the cathode layer and the anode layer includes a mixed cathode active material or a mixed anode active material.Type: ApplicationFiled: November 1, 2011Publication date: May 3, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young-Gi LEE, Kwang Man KIM, Min Gyu CHOI, Kunyoung KANG, Yil Suk YANG, Jongdae KIM
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Publication number: 20120107696Abstract: An electrode active material mainly includes an organic compound having, in a structural unit thereof, a conjugated diamine structure represented by the general formula (I), and an electrolyte includes a carbonate ester compound represented by the general formula (II). In the formulae, R1 to R4 represent substituted or unsubstituted alkyl groups, or the like, whereas X1 to X4 represent a hydrogen atom or a substituent. A secondary battery is achieved which has a high energy density and thus produces a high output, and has favorable cycle characteristics with a small capacity degradation even in the case of repeating charge and discharge.Type: ApplicationFiled: December 27, 2011Publication date: May 3, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Masaharu Sato, Satoshi Shigematsu, Koichi Watanabe, Yozo Miura, Takuya Koizumi
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Patent number: 8124273Abstract: The present invention provides a nonaqueous electrolytic solution exhibiting excellent electrical capacity, long-term cycle property, and storage property in a charged state; and a lithium secondary battery using the nonaqueous electrolytic solution. The nonaqueous electrolytic solution in which an electrolyte salt is dissolved in a nonaqueous solvent, comprises 0.001% to 5% by weight of a tin compound represented by the following general formula (I) and/or (II), on the basis of the weight of the nonaqueous electrolytic solution: R1R2R3Sn-MR4R5R6??(I) where R1 to R3 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or an aryloxy group; R4 to R6 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, or an aryl group; M represents Si or Ge; and SnX2??(II) where X represents ?-diketonate.Type: GrantFiled: August 11, 2006Date of Patent: February 28, 2012Assignee: Ube Industries, Ltd.Inventors: Koji Abe, Kazuhiro Miyoshi, Masahide Kondo, Manabu Takase
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Patent number: 8119276Abstract: A lithium oxyhalide cell electrically connected in parallel with a lithium ion cell is described. Importantly, the open circuit voltage of the freshly built primary lithium oxyhalide cell is equal to or less that the open circuit voltage of the lithium ion cell in a fully charged state. This provides a power system that combines the high capacity of the primary cell with the high pulse power of the secondary cell. This hybrid power system exhibits increased rate capability, higher capacity and improved safety in addition to elimination of voltage delay in comparison to a comparable lithium oxyhalide cell discharge alone.Type: GrantFiled: March 24, 2009Date of Patent: February 21, 2012Assignee: Electrochem Solutions, Inc.Inventors: Arden P. Johnson, Konstantin Tikhonov, Douglas Woodnorth, Jon J. Carroll
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Publication number: 20120034508Abstract: A battery includes a separator with a trapping layer that traps dissolved metal ions.Type: ApplicationFiled: October 11, 2011Publication date: February 9, 2012Inventors: Stuart M. Davis, Jonathan M. Boulton, Cahit Eylem, Ou Mao
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Publication number: 20110223493Abstract: A primary battery includes a cathode having a non-stoichiometric metal oxide including transition metals Ni, Mn, Co, or a combination of metal atoms, an alkali metal, and hydrogen; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.Type: ApplicationFiled: March 12, 2010Publication date: September 15, 2011Inventors: Paul A. Christian, Yichun Wang, Nikolay K. Iltchev, Kirakodu S. Nanjundaswamy, Jennifer A. Nelson, Fan Zhang
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Publication number: 20110212359Abstract: The present invention provides a lithium-ion electrochemical cell comprising an ionic liquid electrolyte solution and a positive electrode having a carbon sheet current collector.Type: ApplicationFiled: November 23, 2010Publication date: September 1, 2011Applicant: Leyden Energy, Inc.Inventors: Hongli Dai, Michael Erickson, Marc Juzkow
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Patent number: 8003247Abstract: A button-type alkaline battery in which an anode 3 containing an anode active material and an alkaline electrolyte is disposed in a sealed space formed by sealing a cathode housing 4 with an anode sealing member 5, with a gasket 6 being interposed between the cathode housing 4 and the anode sealing member 5. The anode active material includes mercury-free zinc or a mercury-free zinc alloy. The button-type alkaline battery includes a metal layer 7 that is disposed between and in contact with the anode sealing member 5 and the anode 3. The metal layer 7 includes a base material containing zinc, and at least one metal M selected from the group consisting of indium, bismuth, and tin, with the metal M having segregated in the base material.Type: GrantFiled: March 29, 2005Date of Patent: August 23, 2011Assignee: Hitachi Maxell Energy, Ltd.Inventors: Hiromi Tamakoshi, Hisanori Sugahara, Yoshihisa Hirose, Minoru Ichijo, Kiyoshi Sato
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Publication number: 20110143214Abstract: The present invention includes small molecule organic additives for lead acid batteries, a lead acid battery and components thereof containing the small molecule organic additives of the invention, and methods for the use of such compounds. The batteries of the invention may optionally further contain carbon foam. The presence of carbon in the battery may generate some of the organic agents of the invention.Type: ApplicationFiled: July 7, 2009Publication date: June 16, 2011Applicant: FIREFLY INTERNATIONAL ENERGY GROUP, INC.Inventors: Boris Monahov, Kurt Kelley, Mohamadkheir Alkhateeb
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Patent number: 7951494Abstract: The present invention provides a solid electrolyte with high ion-conductivity which is cheap and exhibits high conductivity in an alkaline form, and stably keeps high conductivity because of a small amount of the leak of a compound bearing conductivity even in a wet state. The invention is useful in an electrochemical system using the solid electrolyte, such as a fuel cell. The solid electrolyte with high ion-conductivity comprises a hybrid compound which contains at least polyvinyl alcohol and a zirconic acid compound, and also a nitrogen-containing organic compound having a structure of amine, quaternary ammonium compound and/or imine, obtained by hydrolyzing a zirconium salt or an oxyzirconium salt in a solution including water, polyvinyl alcohol, a zirconium salt or an oxyzirconium salt and a nitrogen-containing organic compound having a structure of amine, quaternary ammonium compound and/or imine coexist, removing a solvent and contacting with alkali.Type: GrantFiled: July 1, 2008Date of Patent: May 31, 2011Assignees: Nippon Kodoshi Corporation, Toyota Jidosha Kabushiki KaishaInventors: Haruo Sawa, Haruyuki Nakanishi, Shinichi Matsumoto
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Publication number: 20110111308Abstract: An electrolyte for a lithium ion battery includes a vitreous eutectic mixture represented by the formula AxBy, where A is a salt chosen from a lithium fluoroalkylsulfonimide or a lithium fluoroarylsulfonimide, B is a solvent chosen from an alkylsulfonamide or an arylsulfonamide, and x and y are the mole fractions of A and B, respectively.Type: ApplicationFiled: October 11, 2010Publication date: May 12, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Ion C. Halalay, Damon R. Frisch, Olt E. Geiculescu, Darryl D. Desmarteau, Stephen E. Creager, Changqing Lu
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Patent number: 7938891Abstract: Carbon dioxide or other gases can be separated from gas streams using ionic liquid, such as in an electrochemical cell. For example, a membrane can contain sufficient ionic liquid to reduce ionic current density of at least one of protons and hydroxyl ions, relative to carbon-containing ionic current density. A gas stream containing carbon dioxide can be introduced on a cathode side, while a source of hydrogen gas can be introduced on the anode side of the membrane. Operation of an electrochemical cell with such a membrane can separate the carbon dioxide from the gas stream and provide it at a separate outlet.Type: GrantFiled: March 17, 2008Date of Patent: May 10, 2011Assignee: Palo Alto Research Center IncorporatedInventor: Karl Anthony Littau
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Publication number: 20110008685Abstract: The principal object of the present invention is to provide a liquid electrolyte for electrochemical device having a wide potential window. The invention solves the problem by providing a liquid electrolyte for electrochemical device, which comprises an electrolyte dissolved in an MFx complex being liquid at ordinary temperatures wherein “M” represents B, Si, P, As or Sb and “X” represents the valence of “M”.Type: ApplicationFiled: September 13, 2007Publication date: January 13, 2011Inventors: Tatsuo Fujinami, Takahiro Aoki, Masaki Matsui
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Publication number: 20100283429Abstract: An electrochemical cell includes a cathode capable of reversibly releasing and receiving an alkali metal; an anode capable of reversibly releasing and receiving the alkali metal; and a non-aqueous electrolyte including one or more dissolved lithium salts, one or more nitriles, sulfur dioxide, and one or more other polar aprotic solvents.Type: ApplicationFiled: May 19, 2008Publication date: November 11, 2010Applicant: TIAX LLCInventors: David Ofer, Bookeun Oh
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Publication number: 20100261070Abstract: 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 in a high oxidation state. In some embodiments, a solution of the raw materials in an acidic aqueous solution is subjected to a reducing process to reduce the chromium in a high oxide state to an aqueous electrolyte containing chromium (III) ions. In some embodiments, the reducing process is electrochemical process. In some embodiments, the reducing process is addition of an inorganic reductant. In some embodiments, the reducing process is addition of an organic reductant. In some embodiments, the inorganic reductant or the organic reductant includes iron powder.Type: ApplicationFiled: March 10, 2010Publication date: October 14, 2010Applicant: Deeya Energy, Inc.Inventors: Majid Keshavarz, Aravamuthan Varadarajan
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Patent number: 7745056Abstract: Disclosed herein is an electrolyte for lithium secondary batteries comprising: a chelating agent, which forms complexes with transition metal ions in the battery, and at the same time does not react and coordinate with lithium ions; a non-aqueous solvent; and an electrolyte salt, as well as a lithium secondary battery comprising the electrolyte. The chelating agent, which is contained in the electrolyte for lithium secondary batteries, can suppress a side reaction in which transition metal ions are reduced and deposited as transition metals on the anode. Also, the chelating agent can suppress internal short-circuits in the battery and the resulting voltage drop of the battery and a reduction in the safety and performance of the battery, which can occur when transition metals are deposited on the anode.Type: GrantFiled: December 1, 2006Date of Patent: June 29, 2010Assignee: LG Chem, Ltd.Inventors: Jae Hyun Lee, Soon Ho Ahn, Jong Hoa Ok, Seung Tae Hong, Jeong Min Kim, Jong Mo Jung, Hyo Shik Kil, Sung Hyup Lee
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Patent number: 7718321Abstract: The battery includes an electrolyte activating one or more cathodes and one or more anodes. The electrolyte includes one or more mono[bidentate]borate salts in a solvent. The solvent includes a silane or a siloxane. The mono[bidentate]borate salt can include a lithium dihalo mono[bidentate]borate such as lithium difluoro oxalatoborate (LiDfOB).Type: GrantFiled: October 21, 2004Date of Patent: May 18, 2010Assignee: Quallion LLCInventors: Sang Young Yoon, Hiroshi Nakahara, Hisashi Tsukamoto
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Publication number: 20100104949Abstract: Disclosed is a rechargeable lithium battery including a positive electrode and a negative electrode in which lithium intercalations occurs, and an electrolyte including a low-inflammability solvent with a heat of combustion of 19,000 kJ/kg or less, and a lithium salt.Type: ApplicationFiled: April 15, 2009Publication date: April 29, 2010Inventors: Takitaro YAMAGUCHI, Ryuichi SHIMIZU, Cheol-Soo JUNG
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Patent number: 7682737Abstract: A storage battery is provided such that in its charged condition the positive electrode comprises lead dioxide and the negative electrode comprises zinc. Upon discharge, the lead dioxide is reduced to lead monoxide and the zinc is oxidized to zinc oxide. The electrolyte comprises an aqueous solution of a chromate salt.Type: GrantFiled: June 14, 2007Date of Patent: March 23, 2010Inventor: John E. Stauffer
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Patent number: 7682744Abstract: A lithium secondary battery having high capacity and good charge-discharge cycle performance is provided. The lithium secondary battery includes a negative electrode (2) containing silicon as a negative electrode active material, a positive electrode (1) containing a positive electrode active material, and a non-aqueous electrolyte. The positive electrode active material is a lithium-transition metal composite oxide including a layered structure represented by the chemical formula LiaNixMnyCozO2, where a, x, y, and z satisfy the expressions: 0?a?1.3, x+y+z=1, 0<x, 0?y?0.5, and 0?z.), and the theoretical electrical capacity ratio of the positive electrode to the negative electrode (positive electrode/negative electrode) is 1.2 or less.Type: GrantFiled: September 22, 2005Date of Patent: March 23, 2010Assignee: Sanyo Electric Co., Ltd.Inventors: Shouichirou Sawa, Hiroshi Minami, Atsushi Fukui, Taizou Sunano, Takuya Sunagawa, Maruo Kamino, Toshio Yanagida