Materials Chemically Specified Patents (Class 429/245)
  • Patent number: 10833358
    Abstract: To provide a non-aqueous electrolyte electricity-storage element including a positive electrode including a positive-electrode active material capable of inserting and releasing anions, a negative electrode including a negative-electrode active material capable of inserting and releasing cations, and a non-aqueous electrolyte, wherein the positive-electrode active material is porous carbon having pores having a three-dimensional network structure, and wherein a changing rate of a cross-sectional thickness of a positive electrode film including the positive-electrode active material defined by Formula (1) below is less than 45%.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: November 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoto Abe, Yoshio Itoh, Tatsuya Dan, Yuka Araki, Shuhei Takeshita
  • Patent number: 10818976
    Abstract: A lithium rechargeable lithium battery including a conductive substrate, a cathode material layer disposed over the conductive substrate, a solid electrolyte material layer disposed over the cathode material layer, an anode material layer disposed over the solid electrolyte material layer, and a conductive layer disposed over the anode material layer.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 27, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin W. Brew, Oki Gunawan, Singh Saurabh, Teodor K. Todorov
  • Patent number: 10748715
    Abstract: An energy storage device is provided in which a decrease in power caused by repetitive charge-discharge in a high-temperature environment is suppressed. In the present embodiment, an energy storage device and a method for manufacturing the energy storage device are provided, the energy storage device including an electrode which includes: an active material layer including a particulate active material; and a conductive layer layered on the active material layer and including a conduction aid. An average secondary particle diameter of the active material is 2.5 ?m or more and 6.0 ?m or less. A surface roughness Ra of the conductive layer on a side on the active material layer is 0.17 ?m or more and 0.50 ?m or less.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 18, 2020
    Assignee: GS Yuasa International Ltd.
    Inventors: Kazuki Kawaguchi, Akihiko Miyazaki, Sumio Mori
  • Patent number: 10741848
    Abstract: Provided is a copper foil. The copper foil includes a copper layer and a protective layer disposed on the copper layer, wherein a surface of the protective layer has a maximum height roughness (Rmax) of 0.6 ?m to 3.5 ?m, a peak density (PD) of 5 to 110, and an oxygen atomic amount of 22 at % (atomic %) to 67 at %.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: August 11, 2020
    Assignee: KCF TECHNOLOGIES CO., LTD
    Inventors: Seung Min Kim, Shan Hua Jin
  • Patent number: 10587012
    Abstract: Electrolyte compositions comprising a) an ionic liquid and b) a protic acid and/or an organic solvent are suitable for use in electrochemical cells, e.g. metal hydride batteries. The electrolyte compositions may replace the currently employed 30% by weight aqueous KOH. Suitable protic acids include carboxylic acids, mineral acids, sulfonic acids and the like. Suitable organic solvents include organic carbonates, ethers, glymes, ortho esters, polyalkylene glycols, esters, lactones, glycols, formates, sulfones, sulfoxides, amides, alcohols, ketones, nitro solvents, nitrile solvents and combinations thereof. Present batteries may achieve a nominal open-circuit voltage of >1.2 V (volts) and up to about 6 V. The electrolyte compositions allow enlargement of the electrochemical window, thus allowing the use of further cathode active materials.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: March 10, 2020
    Assignee: BASF Corporation
    Inventors: Tiejun Meng, Kwo Young, Diana Wong, Jean Nei
  • Patent number: 10530007
    Abstract: An electrolytic copper foil for a lithium secondary battery, which is applied as a negative electrode current collector of a lithium secondary battery, wherein when a correlation between a thermal treatment temperature of the electrolytic copper foil for a lithium secondary battery, which corresponds to a variable x, and an elongation increment ratio of the electrolytic copper foil for a lithium secondary battery, which corresponds to a variable y, is expressed as y=ax+b (100?x?200) on an x-y two-dimensional graph, the “a” value is in the range of 0.0009 to 0.0610.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: January 7, 2020
    Assignee: KCF TECHNOLOGIES CO., LTD.
    Inventors: Seung-Min Kim, Soo-Yeol Kim, Dae-Young Kim, Jeong-Gil Lee
  • Patent number: 10505177
    Abstract: A nonaqueous electrolyte battery electrode according to an embodiment includes a current collector and a mixed layer formed on one surface or both surfaces of the current collector. The mixed layer includes an active material and a binding agent. The ratio I2/I1 of the highest peak intensity I2 in peaks appearing in the wavelength range of 1400 to 1480 cm?1 to the highest peak intensity I1 in peaks appearing in the wavelength range of 2200 to 2280 cm?1 is 10 or more and 20 or less in an infrared absorption spectrum measured according to a total reflection measurement method. Alternatively, in the mixed layer, the ratio I3/I2 of the highest peak intensity I3 in peaks appearing in the wavelength range of 1650 to 1850 cm?1 to the highest peak intensity I2 in peaks appearing in the wavelength range of 1400 to 1480 cm?1 is 0.1 or more and 0.8 or less in an infrared absorption spectrum measured according to a total reflection measurement method.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: December 10, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keigo Hoshina, Wen Zhang, Yusuke Namiki, Yoshiyuki Isozaki, Norio Takami
  • Patent number: 10439207
    Abstract: A battery electrode composition is provided comprising core-shell composites. Each of the composites may comprise a core and a multi-functional shell.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: October 8, 2019
    Assignee: Sila Nanotechnologies, Inc.
    Inventors: Gleb Nikolayevich Yushin, Bogdan Zdyrko, Igor Luzinov, Vojtech Svoboda, Alexander Thomas Jacobs, Eugene Michael Berdichevsky, Hyea Kim
  • Patent number: 10424784
    Abstract: An example of a negative electrode includes silicon nanoparticles having a carbon coating thereon. The carbon coating has an oxygen-free structure including pentagon rings. The negative electrode with the silicon nanoparticles having the carbon coating thereon may be incorporated into a lithium-based battery. In an example of a method, silicon nanoparticles are provided. A carbon precursor is applied on the silicon nanoparticles. The carbon precursor is an oxygen-free, fluorene-based polymer. Then the silicon nanoparticles are heated in an inert gas atmosphere to form the carbon coating on the silicon nanoparticles. The carbon coating formed on the silicon nanoparticles has an oxygen-free structure including pentagon rings.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 24, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Li Yang, Mei Cai, Meng Jiang, Martin S. Ruthkosky
  • Patent number: 10411227
    Abstract: Provided is an energy storage device which includes: an electrode assembly where electrodes are layered to each other; and current collector joined to the layered electrodes in a state where the current collector overlaps with the electrodes. The electrode and the current collector are welded to each other or are joined to each other by ultrasonic bonding at a first joint portion. At least one of the electrode and the current collector includes a wall surface which projects from a periphery of the first joint portion or a region adjacent to the periphery along a stacking direction of the electrode and the current collector, and surrounds the first joint portion. The wall surface is disposed on both sides of the first joint portion in the stacking direction.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: September 10, 2019
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventor: Takeshi Sasaki
  • Patent number: 10367230
    Abstract: A battery packet includes a first electrode, a second electrode, as well as a dielectric layer and an electrolysis material that are disposed between the first and second electrode. The electrolysis material can be NaCl or CF6Li.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: July 30, 2019
    Inventor: Tsung-Chi Wang
  • Patent number: 10256508
    Abstract: The invention aims to allow carbon dioxide, which is generated upon decomposition of lithium carbonate contained in a positive electrode mixture layer, to easily flow toward the outside of a flat wound electrode body, and further aims to rapidly raise the pressure inside a battery and to reliably operate a pressure-sensitive current interrupt mechanism before the temperature inside the battery rises to such an extent as causing an abnormal state, e.g., smoking, firing, or a burst. A nonaqueous electrolyte secondary battery (10) according to one embodiment of the present invention includes a pressure-sensitive current interrupt mechanism.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: April 9, 2019
    Assignee: SANYO ELECTRIC CO., LTD.
    Inventor: Eiji Okutani
  • Patent number: 10205193
    Abstract: A lead acid battery including: a positive electrode plate including a positive electrode grid and a positive electrode active material; a negative electrode plate including a negative electrode grid and a negative electrode active material; an electrode plate group including the positive electrode plate, the negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate; a battery container including a plurality of cell chambers each accommodating the electrode plate group and an electrolyte; and a lid sealing an opening of the battery container. A ratio P/N of mass P of the positive electrode active material to mass N of the negative electrode active material is 1.25 or more and 1.65 or less. The negative electrode grid contains bismuth in an amount of 1 ppm or more and 300 ppm or less.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 12, 2019
    Assignee: GS Yuasa International Ltd.
    Inventors: Kenji Izumi, Yoshinobu Sato, Etsuko Ogasawara, Takeshi Chiba, Yu Kojima, Kazuhiro Sugie
  • Patent number: 10164295
    Abstract: A lead acid battery including: a positive electrode plate including a positive electrode grid and a positive electrode active material; a negative electrode plate including a negative electrode grid and a negative electrode active material; an electrode plate group including the positive electrode plate, the negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate; a battery container including a plurality of cell chambers each accommodating the electrode plate group and an electrolyte; and a lid sealing an opening of the battery container. A ratio P/N of mass P of the positive electrode active material to mass N of the negative electrode active material is 1.25 or more and 1.65 or less. The negative electrode grid contains bismuth in an amount of 1 ppm or more and 300 ppm or less.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: December 25, 2018
    Assignee: GS Yuasa International Ltd.
    Inventors: Kenji Izumi, Yoshinobu Sato, Etsuko Ogasawara, Takeshi Chiba, Yu Kojima, Kazuhiro Sugie
  • Patent number: 10147953
    Abstract: A lead-acid battery grid made from a lead-based alloy containing tin, calcium, bismuth and copper and characterized by enhanced mechanical properties, corrosion resistance, less battery gassing, lower sulfation and water loss, and no post-casting treatment requirements for age hardening. In one embodiment, the battery grids are formed from a lead-based alloy including about 2.0% tin, about 0.0125% copper, about 0.065% calcium, and about 0.032% bismuth. Preferably, the battery grid is free of silver beyond trace levels in the alloy.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: December 4, 2018
    Assignee: EXIDE TECHNOLOGIES
    Inventors: Xiangjun Wang, David Robert Mihara, Prosper Adanuvor, Edward Mattan
  • Patent number: 10079386
    Abstract: A non-aqueous electrolyte secondary battery includes a pressure-sensitive current shut-off mechanism, wherein a positive electrode core body exposed portion is disposed at one end portion of a flat rolled electrode assembly, a negative electrode core body exposed portion is disposed at the other end portion, lithium carbonate is contained in a positive electrode mix layer, and a protective layer is disposed along the border with the positive electrode mix layer at the position opposite to a separator on the positive electrode core body exposed portion.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: September 18, 2018
    Assignee: SANYO ELECTRIC CO., LTD.
    Inventors: Shingo Tode, Toyoki Fujihara, Toshiyuki Nohma
  • Patent number: 10033067
    Abstract: An ion conductive glass ceramics having the formula Na2S—P2S5, wherein the Na2S in the ion conductive glass ceramics is contained in an amount of from 70 to 75 mole %, and wherein the ion conductive glass ceramics has a state where crystal parts are dispersed in the glass ingredient of an amorphous state and where the crystal parts contain tetragonal Na3PS4.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: July 24, 2018
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Akitoshi Hayashi, Masahiro Tatsumisago
  • Patent number: 9966634
    Abstract: A heat resistant battery includes a positive electrode including a positive electrode current collector and a positive electrode active material fixed on the positive electrode current collector, wherein the positive electrode active material includes a sodium-containing transition metal compound capable of electrochemically storing and releasing a sodium ion; a negative electrode including a negative electrode current collector and a negative electrode active material fixed on the negative electrode current collector, wherein the negative electrode active material contains at least one selected from the group consisting of a sodium-containing titanium compound and a non-graphitizable carbon, each of the sodium-containing titanium compound and the non-graphitizable carbon capable of storing and releasing a sodium ion at a lower potential than a potential of the sodium-containing transition metal compound; and a sodium ion-conductive electrolyte provided at least between the positive electrode and the negative
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: May 8, 2018
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Koma Numata, Shinji Inazawa, Koji Nitta, Shoichiro Sakai, Atsushi Fukunaga, Eiko Itani
  • Patent number: 9899666
    Abstract: A volume Ve of an electrode group thereof is calculated by Ve=(Sp+Sn)×D/2, where Sp represents an electrode plate area of a positive electrode plate, Sn represents an electrode plate area of a negative electrode plate, D represents the internal dimension of a container in the direction in which the electrode plates of the electrode group are laminated. A ratio (Vp+Vn)/Ve is 0.27 to 0.32, where Vp+Vn is the sum volume of the total pore volume Vp of a positive active material and the total pore volume Vn of the negative active material contained in the electrode group, and Ve is the volume of the electrode group. A ratio Vp/Ve is 0.13 to 0.15, where Vp is the total pore volume of the positive active material and Ve is the volume of the electrode group.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: February 20, 2018
    Assignee: GS Yuasa International Ltd.
    Inventor: Masaaki Kyo
  • Patent number: 9887044
    Abstract: The invention relates to a current collector foil for batteries, accumulators or capacitors, comprising a carrier material and at least one electrically conductive layer made from a metal. Moreover, the invention relates to a method for producing a corresponding current collector foil as well as to the advantageous use thereof. The object of providing a current collector foil for batteries, accumulators or capacitors, which is optimized in relation to the contact surface and the adhesive properties and which results in an improved service life, is achieved as a result of the fact that the at least one electrically conductive layer is produced at least partially by electrodepositing a metal and has a texture.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: February 6, 2018
    Assignee: Hydro Aluminium Rolled Products GmbH
    Inventors: Ulrich Hampel, Kathrin Eckhard, Simon Jupp, Andreas Siemen
  • Patent number: 9859552
    Abstract: An electrode material for nonaqueous electrolyte secondary battery of an embodiment includes a silicon nanoparticle, and a coating layer coating the silicon nanoparticle. The coating layer includes an amorphous silicon oxide and a silicon carbide phase. At least a part of the silicon carbide phase exists on a surface of the silicon nanoparticle.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: January 2, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Fukasawa, Kenji Essaki, Tomokazu Morita, Takashi Kuboki, Mitsuhiro Oki, Yasuhiro Goto
  • Patent number: 9812316
    Abstract: A mixed material for vapor deposition of lithium contains lithium oxide M1 in an amount of 90% or more, sodium chloride (at least one material selected from oxides, sulfides, chlorides, and fluorides of alkali metals) M2 having a melting point lower than the melting point of lithium oxide M1, and magnesium oxide (at least one material selected from oxides and sulfides of alkaline-earth metals) M3 having a melting point higher than the melting point of lithium oxide M1.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: November 7, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Manabu Niboshi, Yuto Tsukamoto, Yoshiyuki Isomura, Satoshi Inoue, Hideki Uchida, Shinichi Kawato, Katsuhiro Kikuchi
  • Patent number: 9812703
    Abstract: The present invention generally relates to electrodes for use in lead-acid battery systems, batteries and electrical storage devices thereof, and methods for producing the electrodes, batteries and electrical storage devices. In particular, the electrodes comprise active battery material for a lead-acid storage battery, wherein the surface of the electrode is provided with a coating layer comprising a carbon mixture containing composite carbon particles, wherein each of the composite carbon particles comprises a particle of a first capacitor carbon material combined with particles of a second electrically conductive carbon material. The electrical storage devices and batteries comprising the electrodes are, for example, particularly suitable for use in hybrid electric vehicles requiring a repeated rapid charge/discharge operation in the PSOC, idling-stop system vehicles, and in industrial applications such as wind power generation, and photovoltaic power generation.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 7, 2017
    Assignees: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, THE FURUKAWA BATTERY CO., LTD
    Inventors: Jun Furukawa, Daisuke Monma, Lan Trieu Lam, Rosalie Louey, Nigel Peter Haigh
  • Patent number: 9768467
    Abstract: The adhesion between metal foil serving as a current collector and a negative electrode active material is increased to enable long-term reliability. An electrode active material layer (including a negative electrode active material or a positive electrode active material) is formed over a base, a metal film is formed over the electrode active material layer by sputtering, and then the base and the electrode active material layer are separated at the interface therebetween; thus, an electrode is formed. The electrode active material particles in contact with the metal film are bonded by being covered with the metal film formed by the sputtering. The electrode active material is used for at least one of a pair of electrodes (a negative electrode or a positive electrode) in a lithium-ion secondary battery.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: September 19, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Minoru Takahashi
  • Patent number: 9725606
    Abstract: An aqueous liquid composition contains a water-based medium containing water, chitosan and/or a chitosan derivative, and a polymeric acid, and has a pH of not higher than 4.5. The aqueous liquid composition contains low-cost materials having low environmental load, can retain adequate viscosity even when stored over a long term, and can form a functional coating film having excellent adhesiveness to a base material and superb durability, solvent resistance and waterproofness and capable of exhibiting various functions led by electrical conductivity and hydrophilicity.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: August 8, 2017
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Yoshihiko Iijima, Kozaburo Hayashi, Yosuke Ichinomiya
  • Patent number: 9715971
    Abstract: An object of the present invention is to provide an aluminum alloy foil for electrode current collectors having superior rolling properties, high conductivity, and high strength after the drying step following the application of the active material. According to the present invention, an aluminum alloy foil for electrode current collector, including 0.03 to 0.1% of Fe, 0.005 to 0.02% of Ti, 0 to 0.1% of Si, 0 to 0.01% of Cu, 99.85% or more of Al, with the rest being unavoidable impurities, wherein tensile strength of the aluminum alloy foil is 175 MPa or higher, and electrical conductivity of the aluminum alloy foil is 60% IACS or higher, is provided.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: July 25, 2017
    Assignees: UACJ CORPORATION, UACJ FOIL CORPORATION
    Inventors: Satoshi Suzuki, Masakazu Seki, Tomohiko Furutani, Kenji Yamamoto
  • Patent number: 9688223
    Abstract: A liquid lead storage battery includes a negative electrode plate, a positive electrode plate and an electrolyte solution. The both plates are arranged so as to face each other in a thickness direction and immersed in the electrolyte solution. The negative electrode plate includes an active material containing carbon. An elastic sheet formed of a porous material is arranged between the negative electrode plate and the positive electrode plate so as to press the negative electrode plate from both sides in the thickness direction.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: June 27, 2017
    Assignee: GS Yuasa International Ltd.
    Inventor: Yoshiomi Fujiwara
  • Patent number: 9680155
    Abstract: The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: an inner electrode comprising a wire-type inner current collector having a first metal tab formed to be extended in a predetermined length at one end thereof, and an inner electrode active material layer formed on the surface of the inner current collector; a separator layer formed on the outer surface of the inner electrode active material layer; and an outer electrode formed on the outer surface of the separator layer, and comprising an outer electrode active material layer and an outer current collector having a second metal tab formed to be extended in a predetermined length at one end thereof.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: June 13, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Sang-Wook Woo, Hye-Ran Jung, Je-Young Kim
  • Patent number: 9673444
    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: Grant
    Filed: September 11, 2014
    Date of Patent: June 6, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Daehong Kim, Jae Hyun Lee, Tae Jin Park
  • Patent number: 9666861
    Abstract: An electrode comprises carbon nanoparticles and at least one of metal particles, metal oxide particles, metalloid particles and/or metalloid oxide particles. A surfactant attaches the carbon nanoparticles and the metal particles, metal oxide particles, metalloid particles and/or metalloid oxide particles to form an electrode composition. A binder binds the electrode composition such that it can be formed into a film or membrane. The electrode has a specific capacity of at least 450 mAh/g of active material when cycled at a charge/discharge rate of about 0.1C.
    Type: Grant
    Filed: April 25, 2015
    Date of Patent: May 30, 2017
    Assignee: South Dakota Board of Regents
    Inventors: Haiping Hong, David R. Salem, Gregory Lee Christensen, Ruidong Yang
  • Patent number: 9666867
    Abstract: An object of the present invention is to provide an aluminum alloy foil for an electrode current collector, the foil having a high strength after the drying step while keeping a high electrical conductivity. Disclosed is a method for manufacturing an aluminum alloy foil for electrode current collector, including: maintaining an aluminum alloy ingot comprising 0.03 to 0.1% of Fe, 0.01 to 0.1% of Si, 0.0001 to 0.01% of Cu, 0.005% or less of Mn, with the rest being Al and unavoidable impurities, at 550 to 620° C. for 1 to 20 hours, and subjecting the resulting ingot under a hot rolling with a starting temperature of 500° C. or higher and an end-point temperature of 255 to 300° C.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: May 30, 2017
    Assignees: UACJ CORPORATION, UACJ FOIL CORPORATION
    Inventors: Masakazu Seki, Satoshi Suzuki, Kenji Yamamoto, Tomohiko Furutani
  • Patent number: 9640835
    Abstract: An ion conducting glass-ceramics represented by the general formula (I): Na2S-MxSy—NaSb, wherein M and N are different and selected from P, Si, Ge, B, Al and Ga; x, y, a and b are integers indicating the stoichiometric ratio depending on the species of M and N; and the content of Na2S is more than 60 mol % and less than 80 mol %.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: May 2, 2017
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Akitoshi Hayashi, Masahiro Tatsumisago
  • Patent number: 9620780
    Abstract: The present disclosure provides an anode for a secondary battery, including: an electrode current collector; a first coating layer formed on the electrode current collector and including an anode active material, a first nonaqueous binder and a conducting material; and a second coating layer formed on the first coating layer and including a second nonaqueous binder. Since the anode of the present disclosure can reduce volume change of the anode active material, a lithium secondary battery including same may have improved cycle characteristics.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: April 11, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Bong Hyun Jeong, Im Goo Choi, Byoung Bae Lee, Kyoung Hun Kim, Jang Bae Kim
  • Patent number: 9590265
    Abstract: The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: an inner electrode having an inner current collector and an inner electrode active material layer surrounding the outer surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and having an outer electrode active material layer and an open-structured outer current collector.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: March 7, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Byung-Hun Oh, Je-Young Kim, Heon-Cheol Shin
  • Patent number: 9559362
    Abstract: The nonaqueous electrolyte secondary battery of the invention includes: a wound-type electrode group including a long positive electrode, a long negative electrode, and a separator disposed between the positive electrode and the negative electrode; a nonaqueous electrolyte; and a prismatic battery case accommodating the electrode group and the nonaqueous electrolyte. A horizontal cross-section of the electrode group has a major axis and a minor axis. The positive electrode includes a positive electrode current collector and a positive electrode active material layer disposed thereon, and the negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed thereon. A tensile strength of the positive electrode when an elongation percentage in a longitudinal direction of the positive electrode is 1% is not greater than 15 N/cm.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: January 31, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshiyuki Muraoka, Yukihiro Okada
  • Patent number: 9553299
    Abstract: A negative electrode sheet of a lithium-ion secondary battery has a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer contains flake graphite particles and has a first region neighboring the negative electrode current collector and a second region neighboring a surface side that are different in perpendicularity of the graphite particles. The perpendicularity of the graphite particles is defined as (m1/m2), where, when the inclination ?n of each of the graphite particles is specified relative to a surface of the negative electrode current collector, m1 is the number of the graphite particles having an inclination ?n of 60°??n?90° and m2 is the number of the graphite particles having an inclination ?n of 0°??n?30°.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: January 24, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koji Takahata, Hideki Sano
  • Patent number: 9496552
    Abstract: The subject matter of the invention are transition-metal-free nitrogen-containing hydride anodes of the general formula LioNH3-o, where o=1, 2 or 3, and wherein said transition-metal-free nitrogen-containing hydride anodes, in the charged state, are mixed with lithium hydride, and electrochemical elements, for example lithium batteries, which contain said transition-metal-free nitrogen-containing hydride anodes as the anode. The invention also describes methods for producing transition-metal-free nitrogen-containing hydride anode materials and electrochemical elements comprising transition-metal-free nitrogen-containing hydride anodes.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: November 15, 2016
    Inventor: Ulrich Wietelmann
  • Patent number: 9437855
    Abstract: A lithium accumulator includes at least two three-dimensional electrodes separated by a separator and encased together into an accumulator body with an electrolyte that is a non-aqueous solution of a lithium salt in an organic polar solvent. The two electrodes have a minimum thickness of 0.5 mm each. At least one electrode is a homogenous, compressed mixture of an electron conductive component and an active material. The active material is capable of absorbing and extracting lithium in the presence of electrolyte. The porosity of the pressed electrodes is 25 to 90%. The active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size. The separator includes a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95%.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: September 6, 2016
    Assignee: HE3DA s.r.o.
    Inventors: Jan Prochazka, Jr., Jan Prochazka
  • Patent number: 9397338
    Abstract: Electrodes and methods of forming electrodes are described herein. The electrode can be an electrode of an electrochemical cell or battery. The electrode includes a current collector and a film in electrical communication with the current collector. The film may include a carbon phase that holds the film together. The electrode further includes an electrode attachment substance that adheres the film to the current collector.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: July 19, 2016
    Assignee: ENEVATE CORPORATION
    Inventors: Benjamin Park, Sung Won Choi, Ian Browne, William Schank
  • Patent number: 9391315
    Abstract: A negative electrode for a lithium ion battery 10 includes a negative electrode current collector 11, a negative electrode active material layer 14, and a lithium silicate layer 15. The negative electrode active material layer 14 contains silicon. The lithium silicate layer 15 contains lithium, oxygen, and silicon forming a Li—O—Si bond, and is formed at the interface between the negative electrode current collector 11 and the negative electrode active material layer 14. The negative electrode active material layer 14 and the lithium silicate layer 15 may be composed of columnar bodies.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: July 12, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuya Iwamoto, Kunihiko Mineya, Shuji Ito
  • Patent number: 9379380
    Abstract: Disclosed are an anode active material for lithium secondary batteries and a method for manufacturing same, the anode active material comprising: a core part including a carbon-silicon complex and having a cavity therein; and a coated layer which is formed on the surface of the core part and includes a phosphor-based alloy.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: June 28, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Sang-Wook Woo, Je-Young Kim
  • Patent number: 9231245
    Abstract: A positive electrode plate for a nonaqueous electrolyte secondary battery, the positive electrode plate including: a positive electrode substrate; a positive electrode active material layer formed on the positive electrode substrate; and a positive electrode substrate exposed portion on which the positive electrode active material layer is not formed, the positive electrode substrate exposed portion having a region that is adjacent to the positive electrode active material layer and has a protective layer formed thereon, the positive electrode active material layer and the protective layer containing polyvinylidene fluoride, and the weight average molecular weight Mw of the polyvinylidene fluoride contained in the protective layer being larger than the weight average molecular weight Mw of the polyvinylidene fluoride contained in the positive electrode active material layer.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: January 5, 2016
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Tetsuya Matsuda, Naoki Ogawa, Keisuke Minami, Toyoki Fujihara, Toshiyuki Nohma
  • Patent number: 9136537
    Abstract: Disclosed is a rechargeable lithium battery including: a positive electrode; a negative electrode including a negative current collector including a copper foil having elongation of about 5% to about 10% and a particle size of about 1 ?m to about 20 ?m, and a negative active material layer provided on the negative current collector; and an electrolyte solution.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: September 15, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung-Hwan Moon, Jae-Hyuk Kim, Hee-Young Chu, Jong-Seo Choi
  • Patent number: 9130234
    Abstract: An electrochemical apparatus (e.g., a battery (cell)) including an aqueous electrolyte with electrode stabilizing additives and one or two electrodes (e.g., an anode and/or a cathode), one or both of which is a Prussian Blue analog material of the general chemical formula AxP[R(CN)6-jLj]z.nH2O, where: A is a cation; P is a metal cation; R is a transition metal cation, L is a ligand that may be substituted in the place of a CN? ligand; 0?x?2; 0?z?1; and 0?n?5 with the electrolyte including an additive to reduce capacity loss of the electrode(s).
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: September 8, 2015
    Assignee: Alveo Energy, Inc.
    Inventors: Colin Deane Wessells, Robert Alan Huggins
  • Patent number: 9093713
    Abstract: The present invention relates to a method for producing a lead-base alloy grid for lead-acid battery having excellent mechanical strength, corrosion resistance and growth resistance, including two-step heat treatment of a Pb—Ca—Sn alloy grid containing 0.06% by mass or less of calcium, the first heat treatment being conducted at a temperature of 40° C. to 110° C., the second heat treatment being conducted at a temperature of 90° C. to 140° C., and the first heat treatment being conducted at a lower temperature than the second heat treatment.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 28, 2015
    Assignee: THE FURUKAWA BATTERY CO., LTD.
    Inventors: Jun Furukawa, Kazuo Matsushita
  • Patent number: 9083043
    Abstract: In order to increase the electrochemical stability of a cathode material for lithium cells, the cathode material includes an iron-doped lithium titanate. A method for manufacturing a lithium titanate includes: a) calcinating a mixture of starting materials to form an iron-doped lithium titanate; and b) at least one of electrochemical insertion and chemical insertion of lithium into the iron-doped lithium titanate.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: July 14, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Hideki Ogihara, Ingo Kerkamm, Ulrich Eisele, Jitti Kasemchainan
  • Patent number: 9083055
    Abstract: An electrode for a rechargeable lithium battery and method of manufacturing a rechargeable lithium battery including the electrode is disclosed. In one embodiment, the electrode includes i) a current collector, ii) a first electrode composition layer provided on a surface of the current collector and iii) a second electrode composition layer farther than the first electrode composition layer from the current collector. Further, each of the first and second electrode composition layers comprises an active material and a conductive material, and wherein the amount of the conductive material of the first electrode composition layer is different from that of the conductive material of the second electrode composition layer.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: July 14, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Nam-Soon Choi, Sae-Weon Roh, Yong-Chul Park, Sung-Soo Kim, So-Hyun Hur
  • Publication number: 20150147598
    Abstract: A method for producing a battery resulting from the joining with a plurality of weld nuggets therebetween of a foil layered part, at which foil exposed portions exposing an aluminum foil overlap, and a positive terminal member made of aluminum, includes: a formation step for forming at the foil layered part a foil welded part at which are formed, by welding aluminum foils together by means of ultrasonic welding, a first high-position part at at least a section of a surface to be joined, and a plurality of first low-position parts distributed at scattered points within the first high-position part; and a resistance-welding step for contacting the first high-position part to the positive terminal member, generating weld nuggets at the first low-position part by flowing an electric current, and resistance-welding the foil welded part and the positive terminal member with the weld nuggets therebetween.
    Type: Application
    Filed: June 28, 2012
    Publication date: May 28, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiko Inoue, Masaharu Miyahisa, Hajime Konishi, Koichi Toriyama
  • Publication number: 20150140476
    Abstract: High surface area electrodes formed using sol-gel derived monoliths as electrode substrates or electrode templates, and methods for making high surface area electrodes are described. The high surface area electrodes may have tunable pore sizes and well-controlled pore size distributions. The high surface area electrodes may be used as electrodes in a variety of energy storage devices and systems such as capacitors, electric double layer capacitors, batteries, and fuel cells.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 21, 2015
    Applicant: Nanotune Technologies Corp.
    Inventors: Vinod M.P. NAIR, David MARGOLESE, Samir J. ANZ, Shiho WANG
  • Publication number: 20150132648
    Abstract: To inhibit degradation of charge and discharge cycle characteristics of a secondary battery. To suppress generation of defects due to expansion and contraction of an active material in a negative electrode. To inhibit deterioration of an electrode due to changes in its form. An electrode member including a current collector, an active material, and a porous body is used. The porous body is in contact with one surface of the current collector and includes a plurality of spaces. The active material is located in the space in the porous body. The space has a larger size than the active material.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 14, 2015
    Inventors: Nobuhiro INOUE, Ryota TAJIMA, Naoki KURIHARA, Junpei MOMO