Lead Oxide Patents (Class 429/228)
  • Patent number: 10050269
    Abstract: The disclosure relates to the manufacturing of a lead-acid battery that includes a composite that includes lead oxide and a nanomaterial. A method of preparing the composite is disclosed. In one embodiment, an in-situ sol-gel reaction of a solution occurs in the presence of lead oxide to produce a composite that includes the lead oxide and a nanomaterial (e.g., a nano-oxide). The solution may include a precursor that includes metal alkoxide or silicate. The composite may include the lead oxide and the nanomaterial dispersed or distributed among particles of the lead oxide. A lead-acid battery may be manufactured using the composite. Various properties of a lead-acid battery may be improved by using the composite as part of the active material including a longer life expectancy, increased specific energy and increased power-to-weight ratio.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: August 14, 2018
    Inventors: Dun Chi, Yimin Chen
  • Patent number: 10044037
    Abstract: The disclosure relates to the manufacturing of a lead-acid battery that includes a composite that includes lead oxide and a nanomaterial. A method of preparing the composite is disclosed. In one embodiment, an in-situ sol-gel reaction of a solution occurs in the presence of lead oxide to produce a composite that includes the lead oxide and a nanomaterial (e.g., a nano-oxide). The solution may include a precursor that includes metal alkoxide or silicate. The composite may include the lead oxide and the nanomaterial dispersed or distributed among particles of the lead oxide. A lead-acid battery may be manufactured using the composite. Various properties of a lead-acid battery may be improved by using the composite as part of the active material including a longer life expectancy, increased specific energy and increased power-to-weight ratio.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: August 7, 2018
    Inventors: Dun Chi, Yimin Chen
  • Patent number: 9620745
    Abstract: In an embodiment, an apparatus includes a battery shaped to be situated within a housing. The battery has a shape that substantially conforms to a shape of a cavity that is defined at least in part by a non-cylindrical curved portion of the housing. The battery includes a contoured conductive mesh formed by shaping a substantially planar conductive mesh to include at least one curved conductive mesh portion. Other embodiments are described and claimed.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: April 11, 2017
    Assignee: Intel Corporation
    Inventor: Andy Keates
  • Patent number: 9587321
    Abstract: An auxiliary electrode for a lithium-ion battery includes a lithium source material. The auxiliary electrode is configured to selectively couple to a negative electrode of a lithium-ion battery to provide lithium for formation of a solid-electrolyte-inter-phase layer on a negative electrode.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: March 7, 2017
    Assignee: MEDTRONIC INC.
    Inventors: Joseph J. Viavattine, Gaurav Jain, Prabhakar A. Tamirisa
  • Patent number: 9274178
    Abstract: Methods and apparatus for detecting abnormality of a battery pack are disclosed. The battery pack includes multiple battery cells coupled in series via at least one connecting wire. A first voltage drop between a positive electrode and a negative electrode of the battery pack is detected. A first set of voltage drops between a positive electrode and a negative electrode of each battery cell in the battery pack is also detected. A total voltage drop across the at least one connecting wire in the battery pack is calculated based on an absolute difference between the first voltage drop and a sum of the first set of voltage drops. Whether the battery pack is abnormal is determined by assessing the total voltage drop across the at least one connecting wire with respect to a predetermined threshold.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: March 1, 2016
    Assignee: O2 MICRO INC.
    Inventor: Wei Zhang
  • Patent number: 9242539
    Abstract: A mounting structure for an in-vehicle power battery may be provided. The mounting structure may comprise an upper cover (3), a suspension tray (1) and a bracket device (2) for supporting at least a part of a peripheral bottom portion of the suspension tray (1). The suspension tray (1) may be hermetically connected with the upper cover (3), forming a sealed space for receiving the power battery. The bracket device (2) may be detachably fixed to a bottom surface of the body floor. Further, a vehicle (100) comprising the mounting structure described above may also be provided.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: January 26, 2016
    Assignees: SHENZHEN BYD AUTO R&D COMPANY LIMITED, BYD COMPANY LIMITED
    Inventors: Heping Ling, Bengang Yi, Wei Zeng, Fengshou Huang
  • Patent number: 9203116
    Abstract: An energy storage device comprising at least one negative electrode, wherein each negative electrode is individually selected from (i) an electrode comprising negative battery electrode material; (ii) an electrode comprising capacitor electrode material; (iii) a mixed electrode comprising either—a mixture of battery and capacitor electrode material or—a region of battery electrode material and a region of capacitor electrode material, or—a combination thereof, and wherein the energy storage device either comprises at least one electrode of type (iii), or comprises at least one electrode of each of types (i) and (ii),—at least one positive electrode, wherein the positive electrode comprises positive battery electrode material and a charging ability-increasing additive, such as one or a mixture of: (a) carbon nanomaterial, vapor grown carbon fiber, fullerene, or a mixture thereof, and (b) tin dioxide conductive materials.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: December 1, 2015
    Assignees: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, FURUKAWA BATTERY CO., LTD.
    Inventors: Lan Trieu Lam, Jun Furukawa
  • Publication number: 20150147650
    Abstract: An antimony based anode material for a rechargeable battery comprises nanoparticles of composition SbMxOy where M is a further element selected from the group consisting of Sn, Ni, Cu, In, Al, Ge, Pb, Bi, Fe, Co, Ga, with 0?x<2 and 0?y?2.5+2x. The nanoparticles form a substantially monodisperse ensemble with an average size not exceeding a value of 30 nm and by a size deviation not exceeding 15%. A method for preparing the antimony based anode material is carried out in situ in a non-aqueous solvent and starts by reacting an antimony salt and an organometallic amide reactant and oleylamine.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Maksym V. KOVALENKO, He MENG, Kostiantyn KRAVCHYK, Marc WALTER
  • Publication number: 20150140430
    Abstract: A lead-acid battery of the present invention includes electrode plate units, each including a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate is a positive electrode grid filled with paste including powder of lead oxide as a main component. The negative electrode plate is a negative electrode grid filled with paste including powder of lead oxide as a main component, and including carbon black. The positive electrode plate faces the negative electrode plate. The separator is provided between the positive electrode plate and the negative electrode plate. The positive electrode grid includes gates, each being generally diamond-shaped, and being more than or equal to 50 mm2 and less than or equal to 100 mm2 in area. The carbon black has a DBP oil absorption of more than or equal to 140 ml/100 g and less than or equal to 340 ml/100 g.
    Type: Application
    Filed: September 21, 2012
    Publication date: May 21, 2015
    Applicant: PANASONIC CORPORATION
    Inventors: Kazunari Ando, Kohei Suzuki
  • Publication number: 20150044565
    Abstract: The present invention provides a process for producing a graphene-enhanced anode active material for use in a lithium battery. The process comprises (a) providing a continuous film of a graphene material into a deposition zone; (b) introducing vapor or atoms of a precursor anode active material into the deposition zone, allowing the vapor or atoms to deposit onto a surface of the graphene material film to form a sheet of an anode active material-coated graphene material; and (c) mechanically breaking this sheet into multiple pieces of anode active material-coated graphene; wherein the graphene material is in an amount of from 0.1% to 99.5% by weight and the anode active material is in an amount of at least 0.5% by weight, all based on the total weight of the graphene material and the anode active material combined.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 12, 2015
    Inventors: Yanbo Wang, Bor Z. Jang, Hui He, Aruna Zhamu
  • Publication number: 20150044564
    Abstract: The present invention provides an anode electrode of a lithium-ion battery, comprising an anode active material-coated graphene sheet, wherein the graphene sheet has two opposed parallel surfaces and at least 50% area of one of the surfaces is coated with an anode active material and wherein the graphene material is in an amount of from 0.1% to 99.5% by weight and the anode active material is in an amount of at least 0.5% by weight (preferably at least 60%), all based on the total weight of the graphene material and the anode active material combined.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 12, 2015
    Inventors: Yanbo Wang, Bor Z. Jang, Hui He, Aruna Zhamu
  • Patent number: 8936874
    Abstract: This invention provides a nanocomposite-based lithium battery electrode comprising: (a) A porous aggregate of electrically conductive nano-filaments that are substantially interconnected, intersected, physically contacted, or chemically bonded to form a three-dimensional network of electron-conducting paths, wherein the nano-filaments have a diameter or thickness less than 1 ?m (preferably less than 500 nm); and (b) Sub-micron or nanometer-scale electro-active particles that are bonded to a surface of the nano-filaments with a conductive binder material, wherein the particles comprise an electro-active material capable of absorbing and desorbing lithium ions and wherein the electro-active material content is no less than 25% by weight based on the total weight of the particles, the binder material, and the filaments. Preferably, these electro-active particles are coated with a thin carbon layer. This electrode can be an anode or a cathode.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: January 20, 2015
    Assignee: Nanotek Instruments, Inc.
    Inventors: Jinjun Shi, Aruna Zhamu, Bor Z. Jang
  • Publication number: 20150010832
    Abstract: The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo6Z8 and the precursors have a general formula of MxMo6Z8. The cathode containing the Chevrel-phase material in accordance with the invention can be combined with a magnesium-containing anode and an electrolyte.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 8, 2015
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Partha Saha, Moni Kanchan Datta, Ayyakkannu Manivannan
  • Publication number: 20150004487
    Abstract: Disclosed is an electrode for secondary batteries including an electrode mixture including an electrode active material, binder and conductive material coated on a current collector wherein a conductive material is coated to a thickness of 1 to 80 ?m on the current collector and the electrode mixture is coated on a coating layer of the conductive material so as to improve electrical conductivity.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 1, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Min Hee Lee, Tae Jin Park, Daehong Kim
  • Publication number: 20140349170
    Abstract: Disclosed are a method of manufacturing an electrode for secondary batteries that includes surface-treating a current collector so as to have a morphology wherein a surface roughness Ra of 0.001 ?m to 10 ?m is formed over the entire surface thereof to enhance adhesion between an electrode active material and the current collector and an electrode for secondary batteries that is manufactured using the method.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Inventors: Daehong Kim, Jae Hyun Lee, Jihyun Kim
  • Publication number: 20140349183
    Abstract: A composite particle is provided. The particle comprises a first particle component and a second particle component in which: (a) the first particle component comprises a body portion and a surface portion, the surface portion comprising one or more structural features and one or more voids, whereby the surface portion and body portion define together a structured particle; and (b) the second component comprises a removable filler; characterised in that (i) one or both of the body portion and the surface portion comprise an active material; and (ii) the filler is contained within one or more voids comprised within the surface portion of the first component.
    Type: Application
    Filed: February 27, 2013
    Publication date: November 27, 2014
    Applicant: Nexeon Limited
    Inventors: William James Macklin, Fiona Scott, Christopher Michael Friend
  • Patent number: 8889258
    Abstract: An additive for producing positive active compositions for lead accumulators based on finely divided 4-basic lead sulphate having an average particle size of less than about 3 ?m and also finely divided silica, where the additive additionally contains red lead (2PbO.PbO2), is described. The finely divided silica prevents, in particular, agglomeration of the particles of the 4-basic lead sulphate, while the red lead leads to an optimized distribution of all constituents of the additive in the battery paste. The use of red lead also gives a cost advantage. Despite the replacement of part of the 4-basic lead sulphate by red lead, the properties achieved in the later use in battery operation are no worse. Thus, the batteries display, for example, improved charging behavior and a higher high-current discharging stability.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: November 18, 2014
    Assignee: Penox GmbH
    Inventor: Ian Klein
  • Publication number: 20140329148
    Abstract: The lead-acid battery of the present invention includes electrode plate units, each including a positive electrode plate, negative electrode plate, and a separator. The positive electrode plate is a positive electrode grid filled with paste of lead suboxide powder. The negative electrode plate is a negative electrode grid filled with paste of lead suboxide powder and carbon black. The positive electrode plate faces the negative electrode plate. The separator is provided between the positive electrode plate and the negative electrode plate. The amount of DBP oil absorption of the carbon black is more than or equal to 140 ml/100 g and less than or equal to 340 ml/100 g. The negative electrode plates are joined together by a strap of a lead alloy substantially without antimony.
    Type: Application
    Filed: January 23, 2013
    Publication date: November 6, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Kenji Izumi, Kazunari Ando, Yoshifumi Kuma
  • Publication number: 20140322606
    Abstract: The present disclosure relates to an anode active material comprising a composite of a core-shell structure, a lithium secondary battery comprising the same, and a method of manufacturing the anode active material. According to an aspect of the present disclosure, there is provided an anode active material of a core-shell structure comprising a core including alloyed (quasi)metal oxide-Li (MOx—Liy) and a shell including a carbon material coated on a surface of the core. According to another aspect of the present disclosure, there is provided a method of manufacturing the anode active material of the core-shell structure. According to an aspect of the present disclosure, an anode active material with high capacity, excellent cycle characteristics and volume expansion control capacity, and high initial efficiency is provided.
    Type: Application
    Filed: July 15, 2014
    Publication date: October 30, 2014
    Inventors: Yong-Ju Lee, Yoon-Ah Kang, Mi-Rim Lee, Je-Young Kim, Hye-Ran Jung
  • Publication number: 20140315086
    Abstract: This invention relates to a negative electrode material for lithium-ion batteries comprising silicon and having a chemically treated or coated surface influencing the zeta potential of the surface. The active material consists of particles or particles and wires comprising a core (11) comprising silicon, wherein the particles have a positive zeta potential in an interval between pH 3.5 and 9.5, and preferably between pH 4 and 9.5. The core is either chemically treated with an amino-functional metal oxide, or the core is at least partly covered with OySiHx groups, with 1<x<3, 1<y<3, and x>y, or is covered by adsorbed inorganic nanoparticles or cationic multivalent metal ions or oxides.
    Type: Application
    Filed: December 13, 2012
    Publication date: October 23, 2014
    Inventors: Stijn Put, Jan Gilleir, Kris Driesen, Jean-Sebastien Bridel, Nicolas Marx, Delphine Longrie, Dan V. Goia, John I. Njagi
  • Publication number: 20140295273
    Abstract: An anode, a lithium battery including the anode, and a method of manufacturing the anode. The anode includes: an anode active material including a metal alloyable with lithium; and a metal-carbon composite conducting agent having a density of 3.0 grams per cubic centimeter or greater.
    Type: Application
    Filed: November 1, 2013
    Publication date: October 2, 2014
    Applicants: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Sang-kook MAH, Jeong-kuk SHON
  • Patent number: 8808914
    Abstract: An electrochemical storage device comprises a plurality of layer electrodes, wherein each layer electrode includes a first charged sector and a second charged sector, wherein the second charged sector is charged oppositely compared to the first charged sector, and wherein the plurality of layer electrodes are assembled with respect to each other such that the first charged sector of a first plate of the plurality of layer electrodes is laid below the second charged sector of a second plate of the plurality of layer electrodes located immediately above the first plate, wherein the charges of the first charged sectors of the first and second plates have a first sign and the charges of the second charged sectors of the first and second plates have a second sign that is opposite the first sign; a separator sector located, and enabling ionic charge exchange between the first charged sector of the first plate and the second charged sector of the second plate.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 19, 2014
    Assignee: Energy Power Systems, LLC
    Inventors: Subhash Dhar, William Koetting, Michael Nielson, Kwok Tom, Jorge Espinel, Fabio Albano
  • Publication number: 20140199597
    Abstract: The present disclosure provides an embodiment of an integrated structure that includes a first electrode of a first conductive material embedded in a first semiconductor substrate; a second electrode of a second conductive material embedded in a second semiconductor substrate; and a electrolyte disposed between the first and second electrodes. The first and second semiconductor substrates are bonded together through bonding pads such that the first and second electrodes are enclosed between the first and second semiconductor substrates. The second conductive material is different from the first conductive material.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 17, 2014
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chyi-Tsong Ni, I-Shi Wang, Yi Hsun Chiu, Ching-Hou Sue
  • Patent number: 8771871
    Abstract: There is disclosed a lead storage battery comprising a group of plates housed in a battery jar, and an electrolyte injected therein to impregnate the group of plates with the electrolyte, thus performing formation treatment, the lead storage battery being adapted to be used in a partial state of charge where the state of charge is confined within the range of more than 70% to less than 100%, wherein the group of plates are formed of a stack constituted by a large number of negative substrates comprising grid substrates filled with a negative active material, by a large number of positive substrates comprising grid substrates filled with a positive active material, and by a porous separator interposed between the negative electrodes and positive electrodes, and the electrolyte contains at least one kind of ion selected from the group consisting of aluminum ions, selenium ions and titanium ions.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: July 8, 2014
    Assignee: The Furukawa Battery Co., Ltd.
    Inventors: Jun Furukawa, Toshimichi Takada, Daisuke Monma, Hidetoshi Abe
  • Patent number: 8765297
    Abstract: An Advanced Graphite, with a lower degree of ordered carbon domains and a surface area greater than ten times that of typical battery grade graphites, is used in negative active material (NAM) of valve-regulated lead-acid (VRLA) type Spiral wound 6V/25 Ah lead-acid batteries. A significant and unexpected cycle life was achieved for the Advanced Graphite mix where the battery was able to cycle beyond 145,000 cycles above the failure voltage of 9V in a non-stop, power-assist cycle-life test. Batteries with Advanced Graphite also showed increased charge acceptance power and discharge power compared to control groups.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: July 1, 2014
    Assignee: Exide Technologies
    Inventors: Sudhakar Jagannathan, Melchor Fernandez Garcia
  • Publication number: 20140162111
    Abstract: Provided is a composite including lead oxide particles (PbO2) and functionalized carbon nanotubes (CNTs).
    Type: Application
    Filed: July 19, 2012
    Publication date: June 12, 2014
    Applicants: BAR ILAN UNIVERSITY, VULCAN AUTOMOTIVE INDUSTRIES LTD.
    Inventors: Tomer Zimrin, Roni Shapira, Doron Auback, Beni Cahana
  • Publication number: 20140154576
    Abstract: Provided are a composite for an anode active material and a method of preparing the same. More particularly, the present invention provides a composite for an anode active material including a (semi) metal oxide and an amorphous carbon layer on a surface of the (semi) metal oxide, wherein the amorphous carbon layer comprises a conductive agent, and a method of preparing the composite.
    Type: Application
    Filed: January 29, 2014
    Publication date: June 5, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Yoon Ah Kang, Yong Ju Lee, Rae Hwan Jo, Je Young Kim
  • Publication number: 20140154571
    Abstract: Provided are a composite and a method of preparing an anode slurry including the same. More particularly, the present invention provides a composite including a (semi) metal oxide, a conductive material on a surface of the (semi) metal oxide, and a binder, and a method of preparing an anode slurry including preparing a composite by dispersing a conductive material in an aqueous binder and then mixing with a (semi) metal oxide, and mixing the composite with a carbon material and a non-aqueous binder.
    Type: Application
    Filed: January 29, 2014
    Publication date: June 5, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Yoon Ah Kang, Yong Ju Lee, Rae Hwan Jo, Je Young Kim
  • Publication number: 20140141334
    Abstract: Provided are a porous composite expressed by Chemical Formula 1 and having a porosity of 5% to 90%, and a method of preparing the same: MOx??<Chemical Formula 1> where M and x are the same as described in the specification. According to the present invention, since a molar ratio (x) of oxygen to a molar ratio of (semi) metal in the porous composite is controlled, an initial efficiency of a secondary battery may be increased. Also, since the porous composite satisfies the above porosity, a thickness change rate of an electrode generated during charge and discharge of the secondary battery may be decreased and lifetime characteristics may be improved.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Jung Woo Yoo, Yong Ju Lee, Yoon Ah Kang, Mi Rim Lee, Je Young Kim
  • Patent number: 8722249
    Abstract: Positive active material pastes for flooded deep discharge lead-acid batteries, methods of making the same and lead-acid batteries including the same are provided. The positive active material paste includes lead oxide, a sulfate additive, and an aqueous acid. The positive active material paste contains from about 0.1 to about 1.0 wt % of the sulfate additive. Batteries using such positive active material pastes exhibit greatly improved performance over batteries with conventional positive active material pastes.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: May 13, 2014
    Assignee: Trojan Battery Company
    Inventors: Gordon C. Beckley, Marvin C. Ho, Colin Smith, Charles E. Snyder
  • Publication number: 20140120378
    Abstract: A composite cathode active material, a method of preparing the composite cathode active material, and a cathode and a lithium battery each including the composite cathode active material. The composite cathode active material includes a core including a lithium intercalatable oxide which enables intercalation and deintercalation of lithium; and a coating layer disposed on at least a portion of the core, wherein the conductive layer includes a lithium metal oxide which is an inactive lithium ion conductor, and wherein the lithium metal oxide contains a metal which has an atomic weight of 27 Daltons or more and is selected an element of Groups 3 to 14 of the Periodic Table of the Elements.
    Type: Application
    Filed: October 11, 2013
    Publication date: May 1, 2014
    Applicants: Samsung SDI Co., Ltd.
    Inventors: Jun-young MUN, Jin-hwan PARK, Gue-sung KIM, Jun-ho PARK, Jae-gu YOON
  • Publication number: 20140087254
    Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium transition metal oxide. A material of the coating layer is a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.
    Type: Application
    Filed: November 30, 2012
    Publication date: March 27, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: YA-DONG LI, JUN LU, DING-SHENG WANG, XIANG-WEN LIU, QING PENG
  • Publication number: 20140038023
    Abstract: Embodiments of the invention provide batteries, electrodes, and methods of making the same. According to one embodiment, a battery may include a positive plate having a grid pasted with a lead oxide material, a negative plate having a grid pasted with a lead based material, a separator separating the positive plate and the negative plate, and an electrolyte. A nonwoven glass mat may be in contact with a surface of either or both the positive plate or the negative plate to reinforce the plate. The nonwoven glass mat may include a plurality of first coarse fibers having fiber diameters between about 6 ?m and 11 ?m and a plurality of second coarse fibers having fiber diameters between about 10 ?m and 20 ?m.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 6, 2014
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G. Dietz, III
  • Publication number: 20140017567
    Abstract: Provided is an anode active material including lithium metal oxide particles having an internal porosity ranging from 3% to 8% and an average particle diameter (D50) ranging from 5 ?m to 12 ?m. According to the present invention, since the high-density lithium metal oxide particles are included, the adhesion to an anode may be significantly improved even by using the same or smaller amount of a binder that is required during the preparation of an anode slurry, and high rate characteristics of a secondary battery may be improved by decreasing the average particle diameter of the lithium metal oxide particles.
    Type: Application
    Filed: August 28, 2013
    Publication date: January 16, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Byung Hun Oh, Je Young Kim, Hyun Woong Yun, Ye Ri Kim
  • Patent number: 8617747
    Abstract: An electrode plate for a battery comprising a plurality of electrodes in a grid where the grid defines a plurality of spaces. A paste disposed in the spaces has a top surface and a bottom surface. The paste is narrowed in the space, defining a distance between the top surface of the paste and the bottom surface of the paste that is less than the thickness of the plate over the electrodes. A retention layer of porous fabric is impressed on the top and/or bottom surface of the paste. Electrolyte disposed in electric communication with the electrodes.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: December 31, 2013
    Assignee: Firefly Energy, Inc.
    Inventors: Kurtis C. Kelley, Mohamadkheir Alkhateeb
  • Publication number: 20130302680
    Abstract: Disclosed is an anode active material comprising a lithium metal oxide represented by the following Formula 1, wherein the anode active material is surface-coated with a silane compound and a silicon content of the silane compound is 0.01 to 5% by weight, based on the total amount of the anode active material: LiaM?bO4?cAc??(1) wherein M? is at least one element selected from the group consisting of Ti, Sn, Cu, Pb, Sb, Zn, Fe, In, Al and Zr; a and b are determined according to an oxidation number of M? within ranges of 0.1?a?4 and 0.2?b?4; c is determined according to an oxidation number within a range of 0?c<0.2; and A is at least one monovalent or bivalent anion. Disclosed is also a secondary battery comprising the same.
    Type: Application
    Filed: April 18, 2013
    Publication date: November 14, 2013
    Inventors: SooHyun LIM, SeongMin LEE
  • Publication number: 20130295462
    Abstract: A carbon black having a combination of properties with values in ranges selected to promote high conductivity, high hydrophobicity, and reduced outgassing in lead acid batteries while maintaining high charge acceptance and cycleability. The carbon black has a Brunauer-Emmett-Teller (BET) surface area ranging from 100 m2/g to 1100 m2/g combined with one or more properties, e.g., a surface energy (SE) of 10 mJ/m2 or less, and/or a Raman microcrystalline planar size (La) of at least 22 ?, e.g., ranging from 22 ? to 50 ?. In some cases, the carbon black has a statistical thickness surface area (STSA) of at least 100 m2/g, e.g., ranging from 100 m2/g to 600 m2/g.
    Type: Application
    Filed: April 4, 2013
    Publication date: November 7, 2013
    Inventors: Paolina Atanassova, Berislav Blizanac, Kenneth C. Koehlert, Geoffrey D. Moeser, Miodrag Oljaca, Yipeng Sun, Danny Pierre, Jeffrey S. Sawrey
  • Patent number: 8574743
    Abstract: Provided is an electrochemical device comprising multi-stacked unit cells of full cells or bicells and a separation film disposed therebetween, whereby the separation film and separators are alternately stacked between electrode layers with an opposite polarity. Herein, as the separation film is formed of a material having a higher thermal shrinkage rate than that of the separator, the thermal stability of the device can be secured by stable induction of shutdown via thermal behavior of the separation film, without causing short-circuiting due to thermal shrinkage of the separator even when a temperature of a battery suddenly rises by internal or external factors.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: November 5, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Je Young Kim, Pil Kyu Park, Soonho Ahn
  • Publication number: 20130273402
    Abstract: A secondary battery includes: a fiber negative electrode having a surface on which a negative electrode active material coating is formed, the coating containing a compound of AaMbXcZd; a fiber positive electrode including a positive electrode active material coating containing nickel hydroxide; an aqueous electrolyte solution; and a separator. The negative electrode coating has an uncoated surface. A is selected from the group consisting of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, and Ba; M is selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, Ru, Pd, Ag, Ta, W, Pr, Sm, Eu, and Pb; X is selected from the group consisting of B, Al, Si, P, S, Ga, and Ge; Z is selected from the group consisting of O, S, N, F, Cl, Br, and I; and 0?a?6, 1?b?5, 0?c?4, 0<d?12, and 0?a/b?4.
    Type: Application
    Filed: March 11, 2011
    Publication date: October 17, 2013
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kazuo Tsutsumi, Kazuya Nishimura, Tomoaki Takasaki, Tetsuo Sakai, Jinhan Yao, Takashi Mukai
  • Publication number: 20130244087
    Abstract: A negative active material, a method for preparing the negative active material and a lithium ion battery comprising the same are provided. The negative active material may comprise: a core, an intermediate layer consisting of a first material and an outmost layer consisting of a second material, which is coated on a surface of the intermediate layer. The first material may be at least one selected from the group consisting of the elements that form alloys with lithium, and the second material may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.
    Type: Application
    Filed: August 25, 2011
    Publication date: September 19, 2013
    Applicant: Shenzhen BYD Auto R&D Company Limited and BYD Company Limited
    Inventors: Yongjun Ma, Pei Tu, Zizhu Guo
  • Patent number: 8486566
    Abstract: A positive electrode for a lithium-ion secondary battery includes a positive-electrode mixture layer, which includes a positive-electrode active material containing lithium composite oxide, a conductive material, and a binder, and a current collector. The positive-electrode mixture layer contains a compound including sulfur and/or phosphorous, a first polymer serving as a main binder, and a second polymer different from the first polymer.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: July 16, 2013
    Assignee: Sony Corporation
    Inventors: Masanori Soma, Kenichi Kawase, Masayuki Ihara, Atsumichi Kawashima, Kazumi Izumitani
  • Publication number: 20130177808
    Abstract: An anode protector of a lithium-ion battery and a method for fabricating the same are provided. A passivation protector (110) is formed on a surface of an anode (102) in advance by film deposition, such as atomic layer deposition (ALD). The passivation protector (110) is composed of a metal oxide having three dimensional structures, such as columnar structures. Accordingly, the present invention is provided with effective protection of the anode electrode structure and maintenance of battery cycle life under high-temperature operation.
    Type: Application
    Filed: March 2, 2012
    Publication date: July 11, 2013
    Applicant: National Taiwan University of Science and Technology
    Inventors: Fu-Ming Wang, Hsin-Yi Wang, Chin-Shu Cheng
  • Publication number: 20130149611
    Abstract: Positive active material pastes for flooded deep discharge lead-acid batteries, methods of making the same and lead-acid batteries including the same are provided. The positive active material paste includes lead oxide, a sulfate additive, and an aqueous acid. The positive active material paste contains from about 0.1 to about 1.0 wt % of the sulfate additive. Batteries using such positive active material pastes exhibit greatly improved performance over batteries with conventional positive active material pastes.
    Type: Application
    Filed: February 6, 2013
    Publication date: June 13, 2013
    Applicant: TROJAN BATTERY COMPANY
    Inventor: Trojan Battery Company
  • Publication number: 20130149567
    Abstract: Lithium-ion battery comprising: (a) a positive electrode comprising an amorphous chalcogenide which comprises lithium ions or which can conduct lithium ions; (b) a negative electrode; (c) a separator between the positive electrode and the negative electrode, wherein the separator comprises a non-woven material composed of fibres, preferably polymer fibres; (d) a non-aqueous electrolyte.
    Type: Application
    Filed: May 17, 2011
    Publication date: June 13, 2013
    Applicant: LI-TEC BATTERY GMBH
    Inventor: Tim Schaefer
  • Publication number: 20130115513
    Abstract: An electrode active material includes a core capable of intercalating and deintercalating lithium; and a surface treatment layer disposed on at least a portion of a surface of the core, wherein the surface treatment layer includes a lithium-free oxide having a spinel structure, and an intensity of an X-ray diffraction peak corresponding to impurity phase of the lithium-free oxide, when measured using Cu—K? radiation, is at a noise level of an X-ray diffraction spectrum or less.
    Type: Application
    Filed: July 23, 2012
    Publication date: May 9, 2013
    Applicants: SAMSUNG CORNING PRECISION MATERIALS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Won-chang CHOI, Gue-sung KIM, Min-sang SONG, Young-min CHOI, Ryoung-hee KIM, So-yeon KIM
  • Patent number: 8404382
    Abstract: Positive active material pastes for flooded deep discharge lead-acid batteries, methods of making the same and lead-acid batteries including the same are provided. The positive active material paste includes lead oxide, a sulfate additive, and an aqueous acid. The positive active material paste contains from about 0.1 to about 1.0 wt % of the sulfate additive. Batteries using such positive active material pastes exhibit greatly improved performance over batteries with conventional positive active material pastes.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: March 26, 2013
    Assignee: Trojan Battery Company
    Inventors: Gordon C. Beckley, Marvin C. Ho, Colin Smith, Charles E. Snyder
  • Publication number: 20130059203
    Abstract: Provided are an anode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery including same. An anode active material for a lithium secondary battery according to the present invention includes: active particles by means of which lithium ions may be absorbed/released; and a coating layer coated on the surface of the active particles, wherein the coating layer includes a first material which is a hollow nanofiber and a second material which is a carbon precursor or LTO.
    Type: Application
    Filed: May 11, 2011
    Publication date: March 7, 2013
    Applicant: ROUTE JJ CO., LTD.
    Inventors: Ji Jun Hong, Ki Taek Byun, Hyo Won Kim
  • Publication number: 20120328945
    Abstract: A lithium ion secondary battery is provided with a positive electrode, a negative electrode containing an active material, and an electrolytic solution, wherein the active material includes a core portion capable of occluding and releasing lithium ions, an amorphous or low-crystalline coating portion disposed on at least a part of the surface of the core portion, and a fibrous carbon portion disposed on at least a part of the surface of the coating portion, and the coating portion contains Si and O as constituent elements, while the atomic ratio y (O/Si) of O relative to Si satisfies 0.5?y?1.8.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 27, 2012
    Applicant: SONY CORPORATION
    Inventors: Takakazu Hirose, Takashi Fujinaga, Isao Koizumi, Norihiro Shimoi, Kenichi Kawase
  • Patent number: 8232006
    Abstract: A lead-acid battery comprising: at least one lead-based negative electrode; at least one lead dioxide-based positive electrode; at least one capacitor electrode; and electrolyte in contact with the electrodes; wherein a battery part is formed by the lead based negative electrode and the lead dioxide-based positive electrode; and an asymmetric capacitor part is formed by the capacitor electrode and one electrode selected from the lead based negative electrode and the lead-dioxide based positive electrode; and wherein all negative electrodes are connected to a negative busbar, and all positive electrodes are connected to a positive busbar. The capacitor electrode may be a capacitor negative electrode comprising carbon and an additive mixture selected from oxides, hydroxides or sulfates of lead, zinc, cadmium, silver and bismuth, or a capacitor negative electrode comprising carbon, red lead, antimony in oxide, hydroxide or sulfate form, and optionally other additives.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: July 31, 2012
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Lan Trieu Lam, Nigel Peter Haigh, Christopher G Phyland, David Anthony James Rand
  • Publication number: 20120129039
    Abstract: An electrical energy storage device is provided which comprises at least one module with a negative electrode, a positive electrode made from an anion generating material or material combination and conducting anions, and an anion conducting solid electrolyte located between the negative electrode and the positive electrode. The negative electrode of each module comprises a porous structure that conducts anions and the pore space of which is at least partially filled by a first redox mass which comprises a metal/metal oxide pair. The positive electrode of each module comprises a porous structure that conducts anions and the pore space of which is at least partially filled by a second redox mass which comprises a metal/metal oxide pair with an increased oxidation potential compared to the first redox mass.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 24, 2012
    Inventors: Wolfgang Drenckhahn, Harald Landes, Wolfgang Menapace, Nicolas Vortmeyer, Shailesh D. Vora