Utilizing Electrolysis To Form Battery Electrode Active Material Or Composition Therefor Patents (Class 205/57)
  • Patent number: 10553860
    Abstract: Provided are exceptional covered lithium-nickel composite oxide particles that have lithium ion conductivity, the high environmental stability of said particles making it possible to inhibit the generation of impurities from the absorption of water and carbon dioxide; high adhesiveness also being achieved, and the coating layer not peeling off easily. The covered lithium-nickel composite oxide particles for the positive electrode active material in a lithium ion cell, said particles being obtained by covering the surfaces of nickel-based lithium-nickel composite oxide particles with a polymer composition containing an electron-nonconductive polymer and an electron-conductive polymer, are covered nickel-based lithium-nickel composite oxide particles having excellent environmental stability and no adverse effect on cell characteristics.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: February 4, 2020
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Yosuke Ota
  • Patent number: 10053787
    Abstract: Provided are an electrolytic cathode structure that can suppress the degradation of an activated cathode even if a reverse current flows upon the stoppage of operation of an electrolyzer in an electrode structure allowing the distance between the electrode and an electrode current collector to be maintained at an approximately constant value, and an electrolyzer using the same. The electrolytic cathode structure includes a metal elastic cushion member 1 compressed and accommodated between an activated cathode 2 and a cathode current collector 3. At least a surface layer of the cathode current collector 3 consumes a larger oxidation current per unit area than the activated cathode. The electrolyzer is partitioned by an ion exchange membrane into an anode chamber for accommodating an anode and a cathode chamber for accommodating a cathode. The electrolytic cathode structure is used for the cathode.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: August 21, 2018
    Assignee: DE NORA PERMELEC LTD
    Inventors: Akihiro Madono, Mitsumasa Okamoto
  • Patent number: 9490041
    Abstract: A composite particle includes a spheroidal core having a polymeric layer disposed thereon. In one embodiment, the polymeric layer includes a cationic surfactant and at least one of a nonionic polymer or an anionic polymer. In another embodiment, the polymeric layer includes a cationic polymer and an anionic polymer. Methods of making the composite particles, composite materials, and articles including them are also disclosed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 8, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Carlos A. Barrios, Baris Yalcin, Stephen E. Amos
  • Patent number: 9437897
    Abstract: A novel electrical energy storage system that includes one or more cells. Each cell includes a polar liquid, a negatively-charged-surface electrode, and a positively-charged surface electrode. An interstitial space is defined between the electrodes. The negatively-charged-surface electrode has a hydrophilic surface adjacent the interstitial space. The liquid includes a self-organizing zone in the interstitial space. Each cell includes means to increase and/or decrease electrical potential between the electrodes. Increasing the electrical potential between the electrodes induces expansion of the self-organizing zone in the interstitial space. Decreasing electrical potential between the electrodes (e.g., via current discharge through an external load) causes a contraction of the self-organizing zone.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: September 6, 2016
    Assignee: GREEN-ON-GREEN ENERGY, INC.
    Inventor: Samuel P. Felton
  • Patent number: 9269953
    Abstract: A method is provided for forming a metal-ion battery electrode with large interstitial spacing. A working electrode with hexacyanometallate particles overlies a current collector. The hexacyanometallate particles have a chemical formula AmM1xM2y(CN)6.zH2O, and have a Prussian Blue hexacyanometallate crystal structure, where A is either alkali or alkaline-earth cations. M1 and M2 are metals with 2+ or 3+ valance positions. The working electrode is soaked in an organic first electrolyte including a salt including alkali or alkaline earth cations. A first electric field is created in the first electrolyte between the working electrode and a first counter electrode, causing A cations and water molecules to be simultaneously removed from interstitial spaces in the Prussian Blue hexacyanometallate crystal structure, forming hexacyanometallate particles having the chemical formula of Am?M1xM2y(CN)6.z?H2O, where m?<m and z?<z, overlying the working electrode.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: February 23, 2016
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Yuhao Lu, Jong-Jan Lee
  • Patent number: 9243111
    Abstract: Water-soluble electrically conductive polymers and a composition comprising such polymers are provided. Also, an electrically conductive layer or film formed from the composition, and articles comprising the electrically conductive layer or film are provided. The electrically conductive polymers according to the present disclosure have one or more hydrophilic side chains. Hydrophilic side chains are covalently bonded to the conductive polymers, which allow the polymer to be stable at high temperature. Thus, the stability of electrical conductivity is prolonged. Depending on the concentration of hydrophilic side chains, the conductivity may be changed. The hydrophilic side chains provide a successful way to fabricate a ductile film exhibiting tunable conductivity. Furthermore, high levels of surface-resistance uniformity can be achieved in the field of coating technology that uses eco-friendly water-based solvents to uniformly and quickly coat the conductive polymer on to plastic film surfaces.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: January 26, 2016
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Dong Hoon Choi
  • Patent number: 9172093
    Abstract: In an aspect, an electrode active material for a lithium secondary battery, the electrode active material including a silicon-based alloy and a coating film containing a polymer that includes a 3,4-ethylenedioxythiophene repeating unit and an oxyalkylene repeating unit, coated on the surface of the silicon-based alloy are provided.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: October 27, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hee-Young Chu, Young-Ugk Kim, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Duk-Hyoung Yoon, Chang-Ui Jeong, Yo-Han Park, Yury Matulevich
  • Publication number: 20150140427
    Abstract: Various embodiments of the invention describe nanoporous silicon (Si) network thin films with controllable porosity and thickness that are fabricated by a robust and scalable electrochemical process, and then released from Si wafers and transferred to flexible and conductive substrates. These nanoporous Si network thin films serve as high performance Li-ion battery electrodes, with an initial discharge capacity of 2570 mA h g?1, above 1000 mA h g?1 after 200 cycles without any electrolyte additives.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Applicant: The Regents of the University of California
    Inventors: Xiang Zhang, Jia Zhu, Christopher Gladden, David Barth
  • Publication number: 20150118552
    Abstract: A composite having an electrically conductive substrate and a polymer derived from a vinyl-containing siloxane monomer coating on the substrate. A method of electropolymerizing a vinyl-containing siloxane monomer to form a coating on an electrically conductive substrate.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Applicant: The Government of the United States of America, as represented by the Secrelary of the Navy
    Inventors: Megan B. Sassin, Jeffrey W. Long, Debra R. Rolison
  • Publication number: 20150075993
    Abstract: An electric storage apparatus has a positive electrode plate, a negative electrode plate, and a separator. Each of the positive electrode plate and the negative electrode plate has a collector plate and an active material layer containing an electrolytic solution, and the active material layer is formed in a predetermined width on a partial region of a collector plate. The separator is placed between the positive electrode plate and the negative electrode plate and contains an electrolytic solution. At least one of the positive electrode plate and the negative electrode plate, an edge of the active material layer in a width direction has a waveform. A set value Wn of the width of the active material layer and a variation ?W of the width of the active material layer satisfy a condition of 0.03??W/Wn?0.056.
    Type: Application
    Filed: October 16, 2014
    Publication date: March 19, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroaki Ikeda
  • Publication number: 20150030926
    Abstract: The object of the present invention is to provide electrolytic manganese dioxide excellent in the middle rate discharge characteristic as compared with conventional electrolytic manganese dioxide, and a method for its production and its application. Electrolytic manganese dioxide characterized in that the potential as measured in a 40 wt % KOH aqueous solution by using a mercury/mercury oxide reference electrode as a standard is higher than 250 mV and less than 310 mV, and the volume of pores having a pore diameter of at least 2 nm and at most 50 nm is at most 0.0055 cm3/g. Of such electrolytic manganese dioxide, the volume of pores having a pore diameter of at least 2 nm and at most 200 nm is preferably at most 0.0555 cm3/g.
    Type: Application
    Filed: February 20, 2013
    Publication date: January 29, 2015
    Applicant: TOSOH CORPORATION
    Inventors: Kazumasa Suetsugu, Kazuo Sekitani
  • Publication number: 20140374264
    Abstract: A lithium-ion battery having an anode including an array of nanowires electrochemically coated with a polymer electrolyte, and surrounded by a cathode matrix, forming thereby interpenetrating electrodes, wherein the diffusion length of the Li+ ions is significantly decreased, leading to faster charging/discharging, greater reversibility, and longer battery lifetime, is described. The battery design is applicable to a variety of battery materials. Methods for directly electrodepositing Cu2Sb from aqueous solutions at room temperature using citric acid as a complexing agent to form an array of nanowires for the anode, are also described. Conformal coating of poly-[Zn(4-vinyl-4? methyl-2,2?-bipyridine)3](PF6)2 by electroreductive polymerization onto films and high-aspect ratio nanowire arrays for a solid-state electrolyte is also described, as is reductive electropolymerization of a variety of vinyl monomers, such as those containing the acrylate functional group.
    Type: Application
    Filed: June 26, 2014
    Publication date: December 25, 2014
    Inventors: Amy L. Prieto, James M. Mosby
  • Publication number: 20140377658
    Abstract: Disclosed is a method of manufacturing an electrode for a secondary battery including an electrode mixture including an electrode active material, binder and conductive material coated on a current collector. Provided are a method including surface-treating the current collector such that an aluminum oxide (Al2O3) layer of 40 nm or less is formed on the current collector so as to enhance adhesion between the electrode mixture and the current collector, and an electrode for a secondary battery manufactured using the same.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Daehong Kim, Jae Hyun Lee, Tae Jin Park
  • Publication number: 20140342247
    Abstract: A glucose fuel cell for reception into a given constrained volume of implantation in a vertebrate in which the glucose fuel cell has access to fluid containing glucose. The fuel cell includes an anode adapted to oxidize the glucose, a cathode adapted to reduce an oxidant, and a membrane disposed between the anode and the cathode and separating the anode from the cathode. At least one of the anode or cathode define a flexible sheet that is geometrically deformed to be receivable into the given constrained volume of implantation and increase volumetric power density. Related methods of making a glucose fuel cell of this type and implantable assemblies including the glucose fuel cell are also disclosed.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 20, 2014
    Inventors: Rahul Sarpeshkar, Jeremy Bert Muldavin, Todd Addison Thorsen, Jakub Kedzierski, Benjamin Isaac Rapoport, Michale Sean Fee
  • Publication number: 20140335407
    Abstract: A method for configuring a non-lithium-intercalation electrode includes intercalating an insertion species between multiple layers of a stacked or layered electrode material. The method forms an electrode architecture with increased interlayer spacing for non-lithium metal ion migration. A laminate electrode material is constructed such that pillaring agents are intercalated between multiple layers of the stacked electrode material and installed in a battery.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 13, 2014
    Inventors: Yan YAO, Yanliang LIANG
  • Patent number: 8883351
    Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 11, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroatsu Todoriki, Yumiko Saito, Takahiro Kawakami, Kuniharu Nomoto, Mikio Yukawa
  • Publication number: 20140315085
    Abstract: Several embodiments related to batteries having electrodes with nanostructures, compositions of such nanostructures, and associated methods of making such electrodes are disclosed herein. In one embodiment, a method for producing an anode suitable for a lithium-ion battery comprising preparing a surface of a substrate material and forming a plurality of conductive nanostructures on the surface of the substrate material via electrodeposition without using a template.
    Type: Application
    Filed: June 2, 2012
    Publication date: October 23, 2014
    Applicant: WASHINGTON STATE UNIVERSITY
    Inventors: M. Grant Norton, Uttara Sahaym
  • Publication number: 20140315105
    Abstract: This invention relates to a cathode for a lithium-air battery, a method of manufacturing the same and a lithium-air battery including the same. The method of manufacturing the cathode for a lithium-air battery includes 1) stirring a cobalt salt, triethanolamine and distilled water, thus preparing a cobalt solution, 2) electroplating the cobalt solution on a porous support, thus preparing a cobalt plated porous support, 3) reacting the cobalt plated porous support with a mixture solution including oxalic acid, water and ethanol, thus forming cobalt oxalate on the porous support, and 4) thermally treating the cobalt oxalate.
    Type: Application
    Filed: August 14, 2013
    Publication date: October 23, 2014
    Applicant: Korea Institute of Energy Research
    Inventors: JONG-WON LEE, Kyu-Nam Jung, Kyung-Hee Shin, Rak-Hyun Song, Seok-Joo Park, Seung-Bok Lee, Tak-Hyoung Lim, Su-Keun Yoon, Ahmer Riaz
  • Publication number: 20140302396
    Abstract: The invention relates to a nano silicon-carbon composite negative material for lithium ion batteries and a preparation method thereof. A porous electrode composed of silica and carbon is taken as a raw material, and a nano silicon-carbon composite material of carbon-loaded nano silicon is formed by a molten salt electrolysis method in a manner of silica in-situ electrochemical reduction. Silicon and carbon of the material are connected by nano silicon carbide, and are metallurgical-grade combination, so that the electrochemical cycle stability of the nano silicon-carbon composite material is improved.
    Type: Application
    Filed: November 9, 2012
    Publication date: October 9, 2014
    Inventors: Shigang Lu, Juanyu Yang, Xingming Wang, Haiyang Ding, Zhefeng Gao
  • Publication number: 20140284215
    Abstract: Disclosed is an anode for a lithium secondary battery. The anode includes a current collector in the form of a wire and a porous anode active material layer coated to surround the surface of the current collector. The three-dimensional porous structure of the active material layer increases the surface area of the anode. Accordingly, the mobility of lithium ions through the anode is improved, achieving superior battery performance. In addition, the porous structure allows the anode to relieve internal stress and pressure, such as swelling, occurring during charge and discharge of a battery, ensuring high stability of the battery while preventing deformation of the battery. These advantages make the anode suitable for use in a cable-type secondary battery. Further disclosed is a lithium secondary battery including the anode.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Inventors: Yo-Han KWON, Je-Young KIM, Ki-Tae KIM, Heon-Cheol SHIN, Hyung-Man CHO, Hye-Ran JUNG
  • Publication number: 20140248543
    Abstract: The present invention relates to nanostructured materials for use in rechargeable energy storage devices such as lithium batteries, particularly rechargeable secondary lithium batteries, or lithium-ion batteries (LIBs). The present invention includes materials, components, and devices, including nanostructured materials for use as battery active materials, and lithium ion battery (LIB) electrodes comprising such nanostructured materials, as well as manufacturing methods related thereto. Exemplary nanostructured materials include silicon-based nanostructures such as silicon nanowires and coated silicon nanowires, nanostructures disposed on substrates comprising active materials or current collectors such as silicon nanowires disposed on graphite particles or copper electrode plates, and LIB anode composites comprising high-capacity active material nanostructures formed on a porous copper and/or graphite powder substrate.
    Type: Application
    Filed: October 2, 2012
    Publication date: September 4, 2014
    Applicant: OneD Material LLC
    Inventors: Yimin Zhu, Chunsheng Du, Joon Shin
  • Publication number: 20140242474
    Abstract: Disclosed is a high-capacity electrochemical energy storage device in which a conversion reaction proceeds as the oxidation-reduction reaction, and the separation (hysteresis) between the electrode potentials for oxidation and reduction is small. The electrochemical energy storage device includes a first electrode including a first active material, a second electrode including a second active material, and a non-aqueous electrolyte interposed between the first and second electrodes. At least one of the first and second active materials is a metal salt having a polyatomic anion and a metal ion, and the metal salt is capable of oxidation-reduction reaction involving reversible release and acceptance of the polyatomic anion.
    Type: Application
    Filed: March 11, 2013
    Publication date: August 28, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Tooru Matsui, Zempachi Ogumi, Toshiro Hirai, Akiyoshi Nakata
  • Patent number: 8784308
    Abstract: A system and method are provided for securing an ingestible electronic device to a pharmaceutical product without damaging the ingestible electronic device. The product includes the ingestible electronic device being placed on the product in accordance with one aspect of the present invention. In accordance with another aspect of the present invention, the ingestible electronic device is placed inside the product. Various embodiments are disclosed in accordance with the present invention for protecting and/or coating of the electronic marker as well as securing the ingestible electronic device onto the product.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: July 22, 2014
    Assignee: Proteus Digital Health, Inc.
    Inventors: Hooman Hafezi, Robert Duck, Timothy Robertson, Benedict Costello
  • Publication number: 20140193711
    Abstract: Embodiments of the present disclosure pertain to methods of preparing porous silicon particulates by: (a) electrochemically etching a silicon substrate, where electrochemical etching comprises exposure of the silicon substrate to an electric current density, and where electrochemical etching produces a porous silicon film over the silicon substrate; (b) separating the porous silicon film from the silicon substrate, where the separating comprises a gradual increase of the electric current density in sequential increments; (c) repeating steps (a) and (b) a plurality of times; (d) electrochemically etching the silicon substrate in accordance with step (a) to produce a porous silicon film over the silicon substrate; (e) chemically etching the porous silicon film and the silicon substrate; and (f) splitting the porous silicon film and the silicon substrate to form porous silicon particulates.
    Type: Application
    Filed: January 7, 2014
    Publication date: July 10, 2014
    Applicants: Lockheed Martin Corporation, William Marsh Rice University
    Inventors: Sibani Lisa Biswal, Michael S. Wong, Madhuri Thakur, Steven L. Sinsabaugh
  • Publication number: 20140183047
    Abstract: The electrochemical regeneration of a replaceable metal electrode of a metal-air battery takes place in a supplementary electrochemical cell with a chemical agent oxidized on the counter electrode. The decrease of the regeneration voltage at the supplementary electrochemical cell results in the growth of the regeneration efficiency. The creation of a commercial product during chemical agent oxidation on the counter electrode decreases the overall cost of the regeneration. Possible chemical agents for regeneration include salts, metal complexes, monomers, conjugated organic molecules, oligomers or polymers.
    Type: Application
    Filed: January 1, 2013
    Publication date: July 3, 2014
    Applicant: PANISOLAR INC.
    Inventors: Iakov Kogan, Anna Khomenko
  • Publication number: 20140186706
    Abstract: A method is presented for fabricating an anode preloaded with consumable metals. The method provides a material (X), which may be one of the following materials: carbon, metals able to be electrochemically alloyed with a metal (Me), intercalation oxides, electrochemically active organic compounds, and combinations of the above-listed materials. The method loads the metal (Me) into the material (X). Typically, Me is an alkali metal, alkaline earth metal, or a combination of the two. As a result, the method forms a preloaded anode comprising Me/X for use in a battery comprising a M1YM2Z(CN)N·MH2O cathode, where M1 and M2 are transition metals. The method loads the metal (Me) into the material (X) using physical (mechanical) mixing, a chemical reaction, or an electrochemical reaction. Also provided is preloaded anode, preloaded with consumable metals.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 3, 2014
    Applicant: Sharp Laboratories of America, Inc.
    Inventors: Long Wang, Yuhao Lu, Jong-Jan Lee
  • Publication number: 20140174935
    Abstract: A surface treating method of a negative electrode for a magnesium secondary battery is provided, wherein the magnesium secondary battery includes: a negative electrode capable of releasing magnesium ions during discharging and capable of precipitating elemental magnesium during charging; a positive electrode capable of precipitating a magnesium oxide during the discharging and capable of releasing magnesium ions during the charging; and a non-aqueous ion conductor for conducting magnesium ions as conduction species. The surface treating method comprises initializing the negative electrode by performing the discharging to form a bare surface at a surface of the negative electrode.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: DENSO CORPORATION
    Inventors: Nobuyoshi Sakakibara, Norikazu Adachi, Kenichirou Kami
  • Publication number: 20140178602
    Abstract: A method of making a cathode for a battery includes the steps of depositing a precursor cathode film having a first crystallinity profile. The precursor cathode film is annealed by irradiating the precursor cathode film with from 1 to 100 photonic pulses having a wavelength of from 200 nm to 1600 nm, a pulse duration of from 0.01 ?s and 5000 ?s and a pulse frequency of from 1 nHz to 100 Hz. The photonic pulses are continued until the precursor cathode film has recrystallized from the first crystallinity profile to a second crystallinity profile.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicants: PLANAR ENERGY DEVICES, INC, UT-BATTELLE, LLC
    Inventors: Joseph A. ANGELINI, Claus DANIEL, Chad E. DUTY, Jane Y. HOWE, Pooran JOSHI, Jianlin LI, E. Andrew PAYZANT, Adrian S. SABAU, David L. WOOD, Isaiah OLADEJI
  • Publication number: 20140170303
    Abstract: A method of depositing an active material for a metal ion battery comprising the steps of: providing a conductive material in an electrodeposition bath wherein the electrodeposition bath contains an electrolyte comprising a source of the active material; and electrodepositing the active material onto a surface of the conductive material.
    Type: Application
    Filed: August 17, 2012
    Publication date: June 19, 2014
    Applicant: NEXEON LIMITED
    Inventors: Phil Rayner, Mike Lain, Jeremy Barker
  • Patent number: 8721540
    Abstract: The present invention provides for safe and reliable electronic circuitry that can be employed in ingestible compositions. The ingestible circuitry of the invention includes a solid support; a conductive element; and an electronic component. Each of the support, conductive element and electronic component are fabricated from an ingestible material. The ingestible circuitry finds use in a variety of different applications, including as components of ingestible identifiers, such as may be found in ingestible event markers, e.g., pharma-informatics enabled pharmaceutical compositions.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: May 13, 2014
    Assignee: Proteus Digital Health, Inc.
    Inventors: Hooman Hafezi, Eric J. Snyder, Benedict Costello
  • Publication number: 20140065447
    Abstract: An electrode includes a substrate having a carbon nanostructure (CNS) disposed thereon and a coating including an active material conformally disposed about the carbon nanostructure and the substrate. The electrode is used in a hybrid capacitor-battery having a bifunctional electrolyte capable of energy storage.
    Type: Application
    Filed: October 4, 2012
    Publication date: March 6, 2014
    Applicant: APPLIED NANOSTRUCTURED SOLUTIONS, LLC
    Inventor: APPLIED NANOSTRUCTURED SOLUTIONS, LLC
  • Publication number: 20140029161
    Abstract: Disclosed herein are methods of manufacturing micro-super capacitors from C-MEMS structures.
    Type: Application
    Filed: April 6, 2012
    Publication date: January 30, 2014
    Applicant: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Majid Beidaghi, Chunlei Wang, Wei Chen
  • Publication number: 20140011088
    Abstract: High capacity energy storage devices and energy storage device components, and more specifically, to a system and method for fabricating such high capacity energy storage devices and storage device components using processes that form three-dimensional porous structures are provided. In one embodiment, an anode structure for use in a high capacity energy storage device, comprising a conductive collector substrate, a three-dimensional copper-tin-iron porous conductive matrix formed on one or more surfaces of the conductive collector substrate, comprising a plurality of meso-porous structures formed over the conductive current collector, and an anodically active material deposited over the three-dimensional copper-tin-iron porous conductive matrix is provided.
    Type: Application
    Filed: February 28, 2012
    Publication date: January 9, 2014
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Sergey D. Lopatin, Dmitri A. Brevnov, Eric H. Liu, Robert Z. Bachrach, Connie P. Wang
  • Publication number: 20130341194
    Abstract: A method of producing electrodes for lithium ion batteries including forming the electrodes formed by electro-chemical deposition, from a mixture including particles made of at least one electrochemically active material, a binder and a solvent and/or dispersing agent.
    Type: Application
    Filed: February 10, 2012
    Publication date: December 26, 2013
    Applicant: VARTA Micro Innovation GmbH
    Inventors: Bernd Fuchsbichler, Martin Schmuck
  • Publication number: 20130330640
    Abstract: A cathode current collector includes a porous metallic or conductive ceramic support and an oxide catalyst in the form of nanowires formed over the support. The nanowire catalyst may be oriented substantially perpendicular to surfaces of the substrate. An example oxide catalyst is cobalt oxide, and an example substrate is nickel foam.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 12, 2013
    Inventors: Michael Edward Badding, Yanming Cui, Lin He, Zhaoyin Wen, Xiangwei Wu Wu
  • Publication number: 20130266869
    Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.
    Type: Application
    Filed: September 28, 2012
    Publication date: October 10, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Hiroatsu TODORIKI, Yumiko SAITO, Takahiro KAWAKAMI, Kuniharu NOMOTO, Mikio YUKAWA
  • Publication number: 20130255763
    Abstract: A carbon electrode of an embodiment includes: a graphene having a graphene skeleton, carbon atoms in the graphene skeleton being partially substituted by a nitrogen atom, wherein the graphene contains an oxygen atom, and the carbon electrode is doped with a cation.
    Type: Application
    Filed: February 20, 2013
    Publication date: October 3, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Katsuyuki Naito, Norihiro Yoshinaga, Shigeru Matake, Yoshihiro Akasaka, Takashi Yoshida
  • Publication number: 20130260222
    Abstract: A method is provided for forming a metal-ion battery electrode with large interstitial spacing. A working electrode with hexacyanometallate particles overlies a current collector. The hexacyanometallate particles have a chemical formula AmM1xM2y(CN)6·zH2O, and have a Prussian Blue hexacyanometallate crystal structure, where A is either alkali or alkaline-earth cations. M1 and M2 are metals with 2+ or 3+ valance positions. The working electrode is soaked in an organic first electrolyte including a salt including alkali or alkaline earth cations. A first electric field is created in the first electrolyte between the working electrode and a first counter electrode, causing A cations and water molecules to he simultaneously removed from interstitial spaces in the Prussian Blue hexacyanometallate crystal structure, forming hexacyanometallate particles having the chemical formula of Am?mM1xM2y(CN)6·z?H2O, where m?<m and z?<z, overlying the working electrode.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 3, 2013
    Inventors: Yuhao Lu, Jong-Jan Lee
  • Publication number: 20130244115
    Abstract: Methods are provided for forming films of orthorhombic V2O5. Additionally provided are the orthorhombic V2O5 films themselves, as well as batteries incorporating the films as cathode materials. The methods use electrodeposition from a precursor solution to form a V2O5 sol gel on a substrate. The V2O5 gel can be annealed to provide an orthorhombic V2O5 film on the substrate. The V2O5 film can be freestanding such that it can be removed from the substrate and integrated without binders or conductive filler into a battery as a cathode element. Due to the improved intercalation properties of the orthorhombic V2O5 films, batteries formed using the V2O5 films have extraordinarily high energy density, power density, and capacity.
    Type: Application
    Filed: April 15, 2013
    Publication date: September 19, 2013
    Applicant: University of Washington through its Center for Commercialization
    Inventors: Guozhong Cao, Yanyi Liu
  • Patent number: 8529746
    Abstract: This method enables the use of nanowire or nano-textured forms of Polyaniline and other conductive polymers in energy storage components. The delicate nature of these very high surface area materials are preserved during the continuous electrochemical synthesis, drying, solvent application and physical assembly. The invention also relates to a negative electrode that is comprised of etched, lithiated aluminum that is safer and lighter weight than conventional carbon based lithium-ion negative electrodes. The invention provides for improved methods for making negative and positive electrodes and for energy storage devices containing them. The invention provides sufficient stability in organic solvent and electrolyte solutions, where the prior art processes commonly fail. The invention further provides stability during repetitive charge and discharge. The invention also provides for novel microstructure protecting support membranes to be used in an energy storage device.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 10, 2013
    Assignee: Nanoscale Components, Inc.
    Inventors: Robert W. Grant, Matthew Sweetland
  • Publication number: 20130206233
    Abstract: The invention relates to manufacturing a I-III-VI compound in the form of a thin film for use in photovoltaics, including the steps of: a) electrodepositing a thin-film structure, consisting of I and/or III elements, onto the surface of an electrode that forms a substrate (SUB); and b) incorporating at least one VI element into the structure so as to obtain the I-III-VI compound. According to the invention, the electrodeposition step comprises checking that the uniformity of the thickness of the thin film varies by no more than 3% over the entire surface of the substrate receiving the deposition.
    Type: Application
    Filed: October 10, 2011
    Publication date: August 15, 2013
    Applicant: NECIS
    Inventors: Pierre-Philippe Grand, Salvador Jaime, Philippe De Gasquet, Hariklia Deligianni, Lubomyr T. Romankiw, Raman Vaidyantahan, Qiang Huang, Shafaat Ahmed
  • Publication number: 20130196236
    Abstract: Disclosed is an electrode for a magnesium secondary battery. The electrode includes a current collector and a magnesium plating layer formed on the surface of the current collector. The electrode is simple to produce and is inexpensive. In addition, the electrode is in the form of a thin film. Therefore, the electrode is useful for the fabrication of a magnesium secondary battery with high energy density. Further disclosed is a magnesium secondary battery including the electrode.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 1, 2013
    Applicant: LG CHEM, LTD.
    Inventor: LG Chem, Ltd.
  • Publication number: 20130189565
    Abstract: A battery having a negative electrode including an anode current collector having at least one sheet of carbon nanotubes and semiconductor material deposited on the sheet; a positive electrode including a cathode current collector having at least one sheet of carbon nanotubes having a nickel sulfide or tin sulfide deposited on the sheet; and a separator situated between the negative electrode and positive electrode is provided. Methods for forming a cathode having nickel sulfide or tin sulfide deposited on a carbon nanotube sheet are also provided.
    Type: Application
    Filed: March 12, 2013
    Publication date: July 25, 2013
    Applicant: NANOCOMP TECHNOLOGIES, INC.
    Inventor: Nanocomp Technologies, Inc.
  • Publication number: 20130168254
    Abstract: A process for the electrochemical deposition of nanoscale catalyst particles using a sacrificial hydrogen anode as counter electrode for the working electrode is disclosed, whereby a concurrent development of hydrogen at the working electrode is mostly or completely avoided.
    Type: Application
    Filed: February 25, 2013
    Publication date: July 4, 2013
    Applicant: Universität des Saarlandes
    Inventor: Universität des Saarlandes
  • Patent number: 8470056
    Abstract: The method for producing a non-aqueous electrolyte secondary battery of the invention includes: (a) a step of preparing an electrode mixture slurry, (b) an ionization step of oxidizing and ionizing a metal impurity present in the electrode mixture slurry, and (c) a step of producing an electrode by using the electrode mixture slurry after the ionization step. In the invention, when the electrode mixture is in the form of a slurry, the metal impurity contained in the electrode mixture is ionized to minimize the amount of the impurity. Therefore, the invention can provide a highly reliable non-aqueous electrolyte secondary battery while minimizing a decrease in production yield by the metal impurity.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: June 25, 2013
    Assignee: Panasonic Corporation
    Inventors: Mitsuhiro Takeno, Hideki Sano, Akira Iguchi
  • Publication number: 20130143148
    Abstract: An improved platinum and method for manufacturing the improved platinum wherein the platinum having a fractal surface coating of platinum, platinum gray, with a increase in surface area of at least 5 times when compared to shiny platinum of the same geometry and also having improved resistance to physical stress when compared to platinum black having the same surface area. The process of electroplating the surface coating of platinum gray comprising plating at a moderate rate, for example at a rate that is faster than the rate necessary to produce shiny platinum and that is less than the rate necessary to produce platinum black. Platinum gray is applied to manufacture a fuel cell and a catalyst.
    Type: Application
    Filed: January 29, 2013
    Publication date: June 6, 2013
    Applicant: Second Sight Medical Products, Inc.
    Inventor: Second Sight Medical Products, Inc.
  • Publication number: 20130122401
    Abstract: An article having a titanium, titanium carbide, titanium nitride, tantalum, aluminum, silicon, or stainless steel substrate, a RuO2 coating on a portion of the substrate; and a plurality of platinum nanoparticles on the RuO2 coating. The RuO2 coating contains nanoparticles of RuO2. A method of: immersing the substrate in a solution of RuO4 and a nonpolar solvent at a temperature that is below the temperature at which RuO4 decomposes to RuO2 in the nonpolar solvent in the presence of the article; warming the article and solution to ambient temperature under ambient conditions to cause the formation of a RuO2 coating on a portion of the article; and electrodepositing platinum nanoparticles on the RuO2 coating.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 16, 2013
    Inventors: Jeremy J. Pietron, Michael B. Pomfret, Christopher N. Chervin, Debra R. Rolison, Jeffrey W. Long
  • Publication number: 20130078537
    Abstract: An oxygen-consuming electrode is described, more particularly for use in chloralkali electrolysis, comprising a novel catalyst coating, as is an electrolysis apparatus. Also described is a production process for the oxygen-consuming electrode and the use thereof in chloralkali electrolysis or fuel cell technology. The oxygen-consuming electrode is based on a gas diffusion layer as a porous film of a fluorinated polymer, into which fine crystal needles of a catalyst metal have been introduced as the catalytically active component and are connected with electrical conduction to the current collector.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 28, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Jakob Jörissen, Gregor Polcyn, Florian Verfuß, Gabriel Toepell
  • Patent number: 8389157
    Abstract: An electrode having an oriented array of multiple nanotubes is disclosed. Individual nanotubes have a lengthwise inner pore defined by interior tube walls which extends at least partially through the length of the nanotube. The nanotubes of the array may be oriented according to any identifiable pattern. Also disclosed is a device featuring an electrode and methods of fabrication.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: March 5, 2013
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Arthur J. Frank, Kai Zhu, Qing Wang
  • Publication number: 20130017453
    Abstract: A fabrication process for conformal coating of a thin polymer electrolyte layer on nanostructured electrode materials for three-dimensional micro/nanobattery applications, compositions thereof, and devices incorporating such compositions. In embodiments, conformal coatings (such as uniform thickness of around 20-30 nanometer) of polymer Polymethylmethacralate (PMMA) electrolyte layers around individual Ni—Sn nanowires were used as anodes for Li ion battery. This configuration showed high discharge capacity and excellent capacity retention even at high rates over extended cycling, allowing for scalable increase in areal capacity with electrode thickness. Such conformal nanoscale anode-electrolyte architectures were shown to be efficient Li-ion battery system.
    Type: Application
    Filed: December 10, 2010
    Publication date: January 17, 2013
    Applicant: William Marsh Rice University
    Inventors: Pulickel M. Ajayan, Fung Soung Ou, Manikoth M. Shajiumon, Sanketh R. Gowda, Arava L.M. Reedy