Having Connector Tab Patents (Class 429/211)
  • Patent number: 11411246
    Abstract: An all-solid secondary battery and a method of manufacturing the all-solid secondary battery. The all-solid secondary battery includes: an anode including an anode current collector and a first anode active material layer; a cathode including a cathode active material layer; and a solid electrolyte layer between the anode and the cathode, wherein the first anode active material layer includes an anode active material and an ionic compound, the ionic compound includes a binary compound, a ternary compound, or a combination thereof, and the ionic compound does not include a plurality of sulfur (S) atoms.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 9, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Hyorang Kang, Minsuk Lee, Dooyeon Lee
  • Patent number: 11411220
    Abstract: Provided is a binder composition for an electrochemical device that has excellent binding capacity and is capable of forming a functional layer that can improve rate characteristics and cycle characteristics of an electrochemical device (for example, a secondary battery). The binder composition for an electrochemical device contains a binder and an organonitrogen compound. The binder is a polymer including at least one functional group selected from the group consisting of a carboxyl group, a hydroxyl group, a cyano group, an amino group, an epoxy group, an oxazoline group, an isocyanate group, and a sulfo group. The organonitrogen compound includes at least one functional group selected from the group consisting of an azo group, a hydrazino group, a hydrazo group, and a nitroso group, has a 5% mass loss temperature of 140° C. or higher, and has a molecular weight of not less than 80 and not more than 1,000.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: August 9, 2022
    Assignee: ZEON CORPORATION
    Inventors: Yasuhiro Isshiki, Kenya Sonobe, Kazuki Asai
  • Patent number: 11380885
    Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer. The active material-containing layer includes: an active material including a titanium-containing composite oxide; inorganic solid particles having lithium ion conductivity; and carbon fiber. The active material-containing layer has a first peak indicating a maximum log differential pore volume in a log differential pore volume distribution curve according to mercury porosimetry. A pore diameter PD at the first peak is 0.01 ?m to 0.1 ?m. The first peak has a full width at half maximum of 0.05 ?m or less.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: July 5, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoe Kusama, Tetsuya Sasakawa, Kazuomi Yoshima, Tomoko Sugizaki, Wen Zhang, Yasuhiro Harada, Norio Takami
  • Patent number: 11362336
    Abstract: The present disclosure provides an electrolytic copper foil composed of a single layer or a stack of two or more layers, wherein the electrolytic copper foil has Total Organic Carbon (TOC) content equal to or smaller than 4 ppm, and has chlorine (Cl) content equal to or smaller than 10 ppm, wherein the electrolytic copper foil has a thickness, a tensile strength, and an elongation satisfying a relationship 1 below: relationship 1: thickness (?m)/(tensile strength (kgf/mm2)*elongation (%))?0.1.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: June 14, 2022
    Assignee: ILJIN MATERIALS CO., LTD.
    Inventors: Sun Hyoung Lee, Seul-Ki Park, Tae Jin Jo, Ki Deok Song
  • Patent number: 11355775
    Abstract: A wound bare electric roll includes a cathode sheet, an anode sheet and a separator, the separator being arranged between the cathode sheet and the anode sheet. The cathode sheet has an end and an anti-puncture cushion arranged on a tail exposed zone at the end of the cathode sheet. The anti-puncture cushion corresponds to an outer surface of a corner of the anode sheet. A lithium ion battery has a laminated aluminum film, and a wound bare electric roll accommodated in the laminated aluminum film.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: June 7, 2022
    Assignee: DONGGUAN AMPEREX TECHNOLOGY LIMITED
    Inventors: Junliang Zhu, Haibing Wang, Tongming Dong, Wenqiang Cheng, Baohua Chen, Shufeng Wu, Wei Yang, Zhihua Qin, Meina Lin
  • Patent number: 11355740
    Abstract: The present invention is directed to battery system and operation thereof. In an embodiment, lithium material is plated onto the anode region of a lithium secondary battery cell by a pulsed current. The pulse current may have both positive and negative polarity. One of the polarities causes lithium material to plate onto the anode region, and the opposite polarity causes lithium dendrites to be removed. There are other embodiments as well.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: June 7, 2022
    Assignee: QuantumScape Battery, Inc.
    Inventors: Timothy Holme, Marie Mayer, Ghyrn Loveness, Zhebo Chen, Rainer Fasching
  • Patent number: 11342544
    Abstract: The present invention is directed to battery system and operation thereof. In an embodiment, lithium material is plated onto the anode region of a lithium secondary battery cell by a pulsed current. The pulse current may have both positive and negative polarity. One of the polarities causes lithium material to plate onto the anode region, and the opposite polarity causes lithium dendrites to be removed. There are other embodiments as well.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: May 24, 2022
    Assignee: QuantumScape Battery, Inc.
    Inventors: Timothy Holme, Marie Mayer, Ghyrn Loveness, Zhebo Chen, Rainer Fasching
  • Patent number: 11329285
    Abstract: Disclosed is a lithium complex oxide sintered plate including a plurality of primary grains having a layered rock-salt structure, the primary grains being bonded. The lithium complex oxide has a composition represented by the formula: Lix(Co1-yMy)O2±? (wherein, 1.0?x?1.1, 0<y?0.1, 0??<1, and M is at least one selected from the group consisting of Mg, Ni, Al, and Mn), and the primary grains have a mean tilt angle of more than 0° to 30° or less, the mean tilt angle being a mean value of the angles defined by the (003) planes of the primary grains and the plate face of the lithium complex oxide sintered plate.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: May 10, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukinobu Yura, Shigeki Okada
  • Patent number: 11329289
    Abstract: Thickener powder for a lithium-ion battery of the present invention is thickener powder that is used to thicken a water-based electrode slurry for a lithium-ion battery, the thickener powder includes a cellulose-based water-soluble polymer, and a content of a water-insoluble component in the thickener powder, which is calculated from Condition 1, is equal to or less than 1.0% by mass. (Condition 1: The thickener powder is dissolved in water, thereby obtaining a thickener aqueous solution having a concentration of 1.3% by mass. Next, the thickener aqueous solution is filtered using a filter having an average pore diameter of 1 ?m. Next, the water-insoluble component remaining on the filter is dried, and a mass of the water-insoluble component is measured. Next, the content of the water-insoluble component in the thickener powder is calculated.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 10, 2022
    Assignee: ENVISION AESC JAPAN LTD.
    Inventor: Takashi Inoue
  • Patent number: 11329310
    Abstract: A secondary battery having an improved current-collecting structure is provided. In an example embodiment, the secondary battery includes an electrode assembly including a plurality of unit electrode plates each including a pair of non-coating portion tabs at a first side and a plurality of separators each located between the unit electrode plates; and a current collector plate welded to the non-coating portion tabs, and the current collector plate is welded in a state in which the pair of non-coating portion tabs are bent in opposite directions. The pair of non-coating portion tabs are bent in opposite directions to then be welded to the current collector plate, and welding may be complementarily performed, thereby securing electrical stability.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: May 10, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chang Hun Cho, Sung Han Kim, Joong Hun Kim, Wook Su Lee
  • Patent number: 11322746
    Abstract: A novel electrode is provided. A novel power storage device is provided. A conductor having a sheet-like shape is provided. The conductor has a thickness of greater than or equal to 800 nm and less than or equal to 20 ?m. The area of the conductor is greater than or equal to 25 mm2 and less than or equal to 10 m2. The conductor includes carbon and oxygen. The conductor includes carbon at a concentration of higher than 80 atomic % and oxygen at a concentration of higher than or equal to 2 atomic % and lower than or equal to 20 atomic %.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 3, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teruaki Ochiai, Takahiro Kawakami, Takuya Miwa
  • Patent number: 11322730
    Abstract: There is provided a positive electrode for nonaqueous electrolyte secondary batteries having a high-density and a high folding strength. There is also provided a nonaqueous electrolyte secondary battery including such a positive electrode. The positive electrode has a high folding strength when it is used in a battery with a high current density, and a nonaqueous electrolyte secondary battery having such a positive electrode. The positive electrode has an electrode body having formed a folded portion at least at one part of the positive electrode. With respect to a cross-section of the positive electrode composition layer, a domain A extends from a central part to a surface side of a thickness direction, and a domain B extends from the central part to the current collector. The distribution of the binder in domain A and domain B are specified.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: May 3, 2022
    Assignee: MAXELL, LTD.
    Inventors: Yuta Takaichi, Toshiharu Shimooka, Hiroyoshi Aoki
  • Patent number: 11316147
    Abstract: A negative electrode active material includes: particles of negative electrode active material, the particles of negative electrode active material contain particles of silicon compound containing a silicon compound (SiOx:0.5?x?1.6); the particles of silicon compound contain at least one kind or more of Li2SiO3 and Li4SiO4; the particles of negative electrode active material contain Li2CO3 and LiOH on a surface thereof; and a content of the Li2CO3 is 0.01% by mass or more and 5.00% by mass or less relative to a mass of the particles of negative electrode active material and a content of the LiOH is 0.01% by mass or more and 5.00% by mass or less relative to the mass of the particles of negative electrode active material. Thus a negative electrode active material is capable of improving initial charge/discharge characteristics and the cycle characteristics when used as a negative electrode active material of the secondary battery.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 26, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hidekazu Awano, Takumi Matsuno, Hiromichi Kamo, Takakazu Hirose, Masahiro Furuya
  • Patent number: 11302923
    Abstract: Provided is an additive for an electrochemical device that can ensure a high level of safety of an electrochemical device. The additive for an electrochemical device is an additive for an electrochemical device that is used in an electrochemical device, for which a temperature at which a volume expansion ratio thereof reaches a factor of 2 or more is higher than 150° C. and lower than 400° C., and in which the content of (A) each element belonging to group 2 of the periodic table is less than 100 mass ppm, the content of (B) each element belonging to group 17 of the periodic table is less than 100 mass ppm, and the content of (C) each element among Cr, Mn, Fe, Co, Ni, Cu, and Zn is less than 5 mass ppm.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 12, 2022
    Assignee: ZEON CORPORATION
    Inventors: Kenya Sonobe, Yasuhiro Isshiki
  • Patent number: 11302968
    Abstract: A first electrode sheet includes respective active material layers on a first face of a positive electrode metal foil and an opposing second face. The first face active material layer includes a parallel section along the first face, a tapered section between a positive electrode first lateral side of the first face and a first face parallel section and inclined inward towards a current collector inner region relative to a thickness direction of the first face active material layer, and a curved section forming a curved surface between and across the first face parallel and the first face tapered sections. A separator includes a first separator covering the side of the positive electrode metal foil first face, and a second separator covering the side of the second face. A first separator part lying flush against and contacting the first face tapered section arranged along the first face tapered section.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 12, 2022
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Atsushi Minagata, Yasuyuki Goda, Shinya Asai, Hiroyasu Nishihara
  • Patent number: 11289748
    Abstract: This application relates to an electrode plate, an electrochemical device and a safety coating. The electrode plate comprises a current collector, an electrode active material layer and a safety coating disposed between the current collector and the electrode active material layer. The safety coating layer comprises fluorinated polyolefin and/or chlorinated polyolefin polymer matrix, a conductive material and an inorganic filler. The electrode plate can quickly cut off the circuit when the electrochemical device (for example, a capacitor, a primary battery, or a secondary battery) is in a high temperature condition or an internal short circuit occurs, and thus it may improve the high temperature safety performance of the electrochemical device.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: March 29, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhenhua Li, Haizu Jin, Xing Li
  • Patent number: 11289781
    Abstract: The invention relates to an accumulator having a plurality of electrode plates which are adjacently arranged and form at least one electrode plate stack in the form of a block, wherein each electrode plate comprises a frame having a grid arranged therein and wherein at least the grid is filled with an active mass, and wherein each electrode plate comprises at least one connecting lug protruding beyond the frame, wherein the connecting lugs of same-polarity electrode plates are arranged adjacent to one another in a row, wherein the connecting lugs adjacently arranged in a row are materially bonded together electrically and mechanically into a connecting lug block by at least one weld or solder point arranged between the connecting lugs. The invention furthermore relates to a method for manufacturing an accumulator.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: March 29, 2022
    Assignee: Clarios Germany GmbH & Co. KG
    Inventor: Tatjana Reich
  • Patent number: 11283079
    Abstract: An anode for a lithium-based energy storage device such as a lithium-ion battery is disclosed. The anode includes an electrically conductive current collector comprising an electrically conductive layer and a transition metal oxide layer overlaying the electrically conductive layer. The anode may include a continuous porous lithium storage layer provided over the transition metal oxide layer. The continuous porous lithium storage layer may include at least 40 atomic % silicon. A method of making the anode may include providing an electrically conductive current collector having an electrically conductive layer and a transition metal oxide layer provided over the electrically conductive layer. The transition metal oxide layer may have an average thickness of at least 0.05 ?m. A continuous porous lithium storage layer is deposited over the transition metal oxide layer by PECVD.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: March 22, 2022
    Assignee: Graphenix Development, Inc.
    Inventors: John C. Brewer, Kevin Tanzil, Paul D. Garman, Robert G. Anstey
  • Patent number: 11276885
    Abstract: The disclosed technology generally relates to thin film-based energy storage devices, and more particularly to printed thin film-based energy storage devices. The thin film-based energy storage device includes a first current collector layer and a second current collector layer over an electrically insulating substrate and adjacently disposed in a lateral direction. The thin film-based energy storage device additionally includes a first electrode layer of a first type over the first current collector layer and a second electrode layer of a second type over the second current collector layer. A separator separates the first electrode layer and the second electrode layer. One or more of the first current collector layer, the first electrode layer, the separator, the second electrode layer and the second current collector layer are printed layers.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: March 15, 2022
    Assignee: Printed Energy Pty Ltd
    Inventors: Vera N. Lockett, Yasser Salah, Alexandra Elyse Hartman, Sri Harsha Kolli, Rodger Whitby, William Johnstone Ray, Leila Daneshi
  • Patent number: 11276850
    Abstract: Methods of preparing Si-based anode slurries and anode made thereof are provided. Methods comprise coating silicon particles within a size range of 300-700 nm by silver and/or tin particles within a size range of 20-500 nm, mixing the coated silicon particles with conductive additives and binders in a solvent to form anode slurry, and preparing an anode from the anode slurry. Alternatively or complementarily, silicon particles may be milled in an organic solvent, and, in the same organic solvent, coating agent(s), conductive additive(s) and binder(s) may be added to the milled silicon particles—to form the Si-based anode slurry. Alternatively or complementarily, milled silicon particles may be mixed, in a first organic solvent, with coating agent(s), conductive additive(s) and binder(s)—to form the Si-based anode slurry. Disclosed methods simplify the anode production process and provide equivalent or superior anodes.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: March 15, 2022
    Assignee: STOREDOT LTD.
    Inventors: Eran Sella, Leora Shapiro, Rony Schwarz, Moria Koren, Maxim Kagan
  • Patent number: 11276860
    Abstract: A positive electrode includes a positive electrode current collector based on aluminum, a positive electrode mixture layer disposed on the positive electrode current collector and including a lithium transition metal oxide, and a protective layer disposed between the positive electrode current collector and the positive electrode mixture layer. The protective layer includes inorganic particles, a conductive agent and a binder, the inorganic particles being a major component of the protective layer. The protective layer includes a first region disposed on the positive electrode current collector over substantially the entirety of a section covered with the positive electrode mixture layer, and a second region disposed on the positive electrode current collector so as to extend from a periphery of the positive electrode mixture layer. The weight per unit area of the second region is not less than 1.5 times the weight per unit area of the first region.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 15, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kazuki Endo
  • Patent number: 11271212
    Abstract: A method of forming anodes for electrochemical devices by laminating a metal foil to a current collector and creating anode-active-material patches, composed of the metal foil, that are spaced from one another by inter-patch regions, wherein each inter-patch region provides a location for forming one or more electrical tabs of the finished anodes. The method can further include applying conductive-coating patches to the current collector prior to laminating the metal foil to the current collector, wherein each conductive-coating patch corresponds to one of the anode-active-material patches. In some embodiments, the conductive-coating patches can assist with forming the anode-active-material patches and/or can improve the cycling performance of an electrochemical device made using anodes made therewith. Anodes containing anode-active material and conductive coatings applied to current collectors are also disclosed.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: March 8, 2022
    Assignee: SES Holdings Pte. Ltd.
    Inventors: Arunkumar Tiruvannamalai, Yongkyu Son, Daniel Rourke, Jacqueline Hong
  • Patent number: 11271199
    Abstract: A method for patterning a lithium metal surface, including the steps of (S1) forming an intaglio or relief pattern having a predetermined size on a patterning substrate; (S2) either (a) compressing lithium metal physically to a surface of the patterning substrate having the pattern formed thereon to form the predetermined pattern on the surface of the lithium metal, or (b) applying liquid lithium to the surface of the patterning substrate having the pattern formed thereon and solidifying the liquid lithium to form the predetermined pattern on the surface of the lithium metal; and (S3) separating the lithium metal having the predetermined pattern formed thereon from the patterning substrate, wherein the patterning substrate is at least one selected from a silicon wafer or polycarbonate substrate.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: March 8, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Yoon-Ah Kang, Eun-Kyung Kim, Sang-Wook Woo, Oh-Byong Chae, Soo-Hee Kang, Geun-Sik Jo, So-Young Choo
  • Patent number: 11264611
    Abstract: This application relates to a battery comprising a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active material coated on at least one surface of the positive electrode current collector, and wherein an underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material and a first conductive material; and wherein an upper positive active material layer in contact with the underlying positive active material layer and away from the positive electrode current collector comprises a second positive active material, a second polymer material and a second conductive material, and the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 1, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Haizu Jin, Zhenhua Li, Xing Li
  • Patent number: 11264181
    Abstract: A mixed conductor represented by Formula 1: A4±xTi5?yGzO12????Formula 1 wherein, in Formula 1, A is a monovalent cation, G is at least one of a monovalent cation, a divalent cation, a trivalent cation, a tetravalent cation, a pentavalent cation, or a hexavalent cation, with the proviso that G is not Ti or Cr, wherein 0<x<2, 0.3<y<5, 0<z<5, and 0<??3.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: March 1, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangbok Ma, Hyukjae Kwon, Hyunpyo Lee, Donghwa Seo, Dongmin Im
  • Patent number: 11258070
    Abstract: Provided is a bi-polar electrode for a battery, wherein the bi-polar electrode comprises: (a) a current collector comprising a conductive material foil (e.g. metal foil) having a thickness from 10 nm to 100 ?m and two opposed, parallel primary surfaces, wherein one or both of the primary surfaces is coated with a layer of graphene material having a thickness from 10 nm to 10 ?m; and (b) a negative electrode layer and a positive electrode layer respectively disposed on the two sides of the current collector, each in physical contact with the layer of graphene material or directly with a primary surface of the conductive material foil (if not coated with a graphene material layer). Also provided is a battery comprising multiple (e.g. 2-300) bipolar electrodes internally connected in series. There can be multiple bi-polar electrodes that are connected in parallel.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: February 22, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Evan House, Aruna Zhamu, Bor Z. Jang
  • Patent number: 11250315
    Abstract: An electrochemical device includes an electrochemical cell and an electric circuit. The electrochemical cell comprises a first solid component and a second solid component. The two solid components comprise same chemical elements but have different concentrations of at least one type of the chemical elements. A solid electrolyte is arranged between the two solid components. The solid electrolyte is a dielectric material. The electric circuit is connected to the electrochemical cell. The electrochemical cell may be operated according to a redox process, so as to exchange chemical elements of the at least one type between the first solid component and the second solid component and thereby change an electrical conductance of each of the two solid components.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: February 15, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Valeria Bragaglia, Patrick Ruch, Antonio La Porta, Jean Fompeyrine, Stefan Abel
  • Patent number: 11233269
    Abstract: An all-solid-state battery includes a positive-electrode current collector, a positive electrode layer, a negative-electrode current collector, a negative electrode layer, and a solid electrolyte layer. The positive electrode layer is formed on the positive-electrode current collector and includes a positive-electrode material mixture layer which includes at least a positive-electrode active material and a binder. The negative electrode layer is formed on the negative-electrode current collector and includes a negative-electrode material mixture layer which includes at least a negative-electrode active material and a binder. The solid electrolyte layer is disposed between the positive-electrode material mixture layer and the negative-electrode material mixture layer, and includes at least a solid electrolyte having ion conductivity.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: January 25, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kenta Hasegawa, Takao Kuromiya
  • Patent number: 11220749
    Abstract: A particle coating method includes placing magnetic particles in a vessel, fixing the magnetic particles by a magnetic force caused by a magnetic field generated in the vessel, and forming a coating film on surfaces of the magnetic particles by an atomic layer deposition method. Further, the method preferably includes forming a coating film on surfaces of the magnetic particles by an atomic layer deposition method in a state where the magnetic particles are fixed by the magnetic force in a first direction, thereby obtaining coated magnetic particles, and forming a coating film on surfaces of the coated magnetic particles in a state where the coated magnetic particles are fixed by the magnetic force in a second direction different from the first direction.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: January 11, 2022
    Inventors: Kenji Otsuka, Kazuhiro Gomi
  • Patent number: 11223068
    Abstract: Provided is a manufacturing method of a compacted strip-shaped electrode plate including: an undried layer forming step of forming, on a current collector foil, a strip-shaped undried active material layer by rolling out a particle aggregate; a drying step of drying the undried active material layer to form an active material layer; and a pressing step of pressing the active material layer by rollers to compact the active material layer. The particle aggregate is a mixed particle aggregate in which first wet particles manufactured with the content ratio of conductive particles to the total solid content set to W1 and second wet particles manufactured with the content ratio of conductive particles to the total solid content set to W2, W2 being higher than W1, are mixed together.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: January 11, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, PRIMEARTH EV ENERGY CO., LTD.
    Inventors: Kunihiko Hayashi, Shun Okuda
  • Patent number: 11211599
    Abstract: Provided is a lithium complex oxide sintered plate for use in a positive electrode of a lithium secondary battery. The lithium complex oxide sintered plate has a structure in which a plurality of primary grains having a layered rock-salt structure are bonded, and has a porosity of 3 to 40%, a mean pore diameter of 15 ?m or less, an open porosity of 70% or more, and a thickness of 15 to 200 ?m. The plurality of primary grains has a primary grain diameter, i.e., a mean diameter of the primary grains, of 20 ?m or less and a mean tilt angle of more than 0° to 30° or less. The mean tilt angle is a mean value of the angles defined by the (003) planes of the primary grains and the plate face of the lithium complex oxide sintered plate.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: December 28, 2021
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukinobu Yura, Shigeki Okada
  • Patent number: 11201333
    Abstract: Methods for forming polymeric protective layers on magnesium anodes for magnesium batteries include placing a solution of electropolymerizable monomers onto all exposed surfaces of a magnesium anode, and electropolymerizing the monomers in the solution. The monomers can be glycidyl methacrylate, a salt of 3-sulfopropyl methacrylate, or a mixture of the two. Protected magnesium foam anodes for 3-D magnesium batteries have a magnesium foam electrolyte, and a polymeric coating covering all exposed surfaces of the magnesium foam electrolyte. The polymeric protective coating formed of (poly)glycidyl methacrylate, poly(3-sulfopropyl methacrylate), or a copolymer of the two.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: December 14, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Timothy S. Arthur, Nikhilendra Singh
  • Patent number: 11201318
    Abstract: The present disclosure is directed to methods of securing battery tab structures to binderless, collectorless self-standing electrodes, comprising electrode active material and carbon nanotubes and no foil-based collector, and the resulting battery-tab secured electrodes. Such methods and the resulting battery tab-secured electrodes may facilitate the use of such composites in battery and power applications.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: December 14, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Avetik Harutyunyan, Oleg Kuznetsov
  • Patent number: 11196039
    Abstract: Methods of preparing Si-based anode slurries and anode made thereof are provided. Methods comprise coating silicon particles within a size range of 300-700 nm by silver and/or tin particles within a size range of 20-500 nm, mixing the coated silicon particles with conductive additives and binders in a solvent to form anode slurry, and preparing an anode from the anode slurry. Alternatively or complementarily, silicon particles may be milled in an organic solvent, and, in the same organic solvent, coating agent(s), conductive additive(s) and binder(s) may be added to the milled silicon particles—to form the Si-based anode slurry. Alternatively or complementarily, milled silicon particles may be mixed, in a first organic solvent, with coating agent(s), conductive additive(s) and binder(s)—to form the Si-based anode slurry. Disclosed methods simplify the anode production process and provide equivalent or superior anodes.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: December 7, 2021
    Assignee: STOREDOT LTD.
    Inventors: Eran Sella, Eynat Matzner, Maxim Kagan, Yaron Ideses, Moria Koren
  • Patent number: 11183676
    Abstract: A process for producing an electrode for an alkali metal battery, comprising: (a) Continuously feeding an electrically conductive porous layer to an anode or cathode material impregnation zone, wherein the conductive porous layer has two opposed porous surfaces and contain interconnected conductive pathways and at least 70% by volume of pores; (b) Impregnating a wet anode or cathode active material mixture into the porous layer from at least one of the two porous surfaces to form an anode or cathode electrode, wherein the wet anode or cathode active material mixture contains an anode or cathode active material and an optional conductive additive mixed with a liquid electrolyte; and (c) Supplying at least a protective film to cover the at least one porous surface to form the electrode.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: November 23, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 11183687
    Abstract: A method of producing an electrode plate includes forming a particle aggregate, forming an undried active material layer, and drying the undried active material layer. When the particle aggregate is formed, conductive particles include first conductive particles which have a three-dimensional structure in which primary particles with an average primary particle size of 30 nm to 80 nm are connected to each other and have an average structure length of 260 nm to 500 nm and second conductive particles which have a three-dimensional structure in which primary particles with an average primary particle size of 8 nm to 13 nm are connected to each other and have an average structure length of 80 nm to 250 nm.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 23, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Naohisa Akiyama
  • Patent number: 11177509
    Abstract: In an embodiment, a metal-ion battery cell comprises an anode electrode, a cathode electrode, a separator, and electrolyte ionically coupling the anode electrode and the cathode electrode. The anode electrode is a high-capacity electrode (e.g., in the range of about 2 mAh/cm2 to about 10 mAh/cm2) and the cathode electrode comprises an intercalation-type active material including at least Li, one or more metals, and oxygen. The electrolyte includes a solvent composition having low-melting point (LMP) solvent(s) in the range from about 10 vol. % to about 95 vol. % of the solvent composition.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: November 16, 2021
    Assignee: SILA NANOTECHNOLOGIES, INC.
    Inventors: Gleb Yushin, Ashleigh Ward
  • Patent number: 11171362
    Abstract: In an embodiment, a metal-ion battery cell comprises an anode electrode, a cathode electrode, a separator, and electrolyte ionically coupling the anode electrode and the cathode electrode. The anode electrode is a high-capacity electrode (e.g., in the range of about 2 mAh/cm2 to about 10 mAh/cm2). The electrolyte includes a solvent composition, the solvent composition including low-melting point (LMP) solvent(s) in the range from about 10 vol. % to about 80 vol. % of the solvent composition as well as regular-melting point (RMP) solvent(s) in the range from about 20 vol. % to about 90 vol. % of the solvent composition.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: November 9, 2021
    Assignee: SILA NANOTECHNOLOGIES, INC.
    Inventors: Gleb Yushin, Ashleigh Ward
  • Patent number: 11171329
    Abstract: A battery includes a first mono cell formed from a first electrode foil having a first body and a first tab, and a first coating. The first body has long edges and short edges, and a length-to-width ratio of the first body is at least five. The first tab extends from one of the long edges of the first body entirely between one of the short edges a midpoint of the long edge. A second electrode foil has similar structure to the first electrode foil and coating, but a second tab is aligned opposite the first tab along the short edges. A second mono cell has similar structure. A third tab and a fourth tab of the second mono cell are on an opposing side of the midpoint of the long edges from the first tab and the second tab.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: November 9, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Sherman H. Zeng, Chih-Cheng Hsu
  • Patent number: 11158859
    Abstract: The present application discloses a positive electrode current collector, a positive electrode plate, an electrochemical device, and an electric equipment including the electrochemical device. The positive electrode current collector includes: a metal conductive layer; an overcharge blocking activation layer disposed on a surface of the metal conductive layer, the overcharge blocking activation layer including an overcharge blocking activation material, a binder material and a conductive material, wherein the overcharge blocking activation material includes an esterified saccharide.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: October 26, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventor: Yang Yu
  • Patent number: 11158861
    Abstract: A positive electrode grid body for lead-acid battery includes frame rib including first and second lateral frame ribs and first and second longitudinal frame ribs, an inner rib including a plurality of lateral and longitudinal crosspieces, a plurality of opening portions, and a positive electrode current collection lug connected to the first lateral frame rib. In a region having a length of at least one opening portion or more in the lateral direction of the lateral crosspieces from the first longitudinal frame rib, a cross-sectional area of the plurality of lateral crosspieces located on at least the first lateral frame rib side becomes larger from the second longitudinal frame rib side toward a portion connected to the first longitudinal frame rib.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 26, 2021
    Assignee: The Furukawa Battery Co., Ltd.
    Inventors: Yutaro Kawaguchi, Yusuke Ogino, Atsushi Sato, Shinya Suge, Katsuya Nukui, Akihiro Nishimura, Koshin Takemoto, Ryo Tainaka, Masashi Matsushita, Hideki Hagihara, Masaki Shimotsuya, Jun Furukawa
  • Patent number: 11158880
    Abstract: Provided herein are defect-free solid-state separators which are useful as Li+ ion-conducting electrolytes in electrochemical cells and devices, such as, but not limited to, rechargeable batteries. In some examples, the separators have a Li+ ion-conductivity greater than 1*10?3 S/cm at room temperature.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: October 26, 2021
    Assignee: QuantumScape Battery, Inc.
    Inventors: Cheng-Chieh Chao, Zhebo Chen, Lei Cheng, Niall Donnelly, Tim Holme, Tommy Huang, Sriram Iyer, Kian Kerman, Harsh Maheshwari, Jagdeep Singh, Gengfu Xu
  • Patent number: 11152604
    Abstract: Methods of forming a composite material film can include providing a layer comprising a carbon precursor and silicon particles on a sacrificial substrate. The methods can also include pyrolysing the carbon precursor to convert the precursor into one or more types of carbon phases to form the composite material film, whereby the sacrificial substrate has a char yield of about 10% or less.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 19, 2021
    Assignee: ENEVATE CORPORATION
    Inventors: Ian Russell Browne, Rahul R. Kamath, Monika Chhorng, Benjamin Yong Park
  • Patent number: 11139463
    Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode including titanium oxide particles, and an aqueous electrolyte. The surfaces of the titanium oxide particles are partially covered with an alkyl-based silane compound. The ratio IB/IA of the intensity IB of the second peak PB to the intensity IA of the first peak PA is within a range of 4 to 10. The first peak PA is a maximum peak present within a range of 3200 cm?1 to 3600 cm?1 in an infrared absorption spectrum of the titanium oxide particles. The second peak PB is a maximum peak present within a range of 565 cm?1 to 570 cm?1 in the infrared absorption spectrum of the titanium oxide particles.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: October 5, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yumiko Sekiguchi, Shinsuke Matsuno, Norio Takami
  • Patent number: 11139466
    Abstract: An object is to provide a secondary-battery electrode that is capable of suppressing a short circuit between adjacent positive and negative electrodes when the secondary-battery electrode is applied to an electrode body of a secondary battery. A secondary-battery electrode (10) includes a thin-plate-shaped metal core body (11) and an active material layer (12a, 12b) containing an active material and formed on two surfaces of the core body (11). In a cut end portion (15) of the electrode, an end portion (16) of the core body (11) is positioned inward of an end portion (17a, 17b) of the active material layer (12a, 12b) in a surface direction Y of the electrode.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: October 5, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Kazuya Nishio, Tetsuya Sato, Mituhiro Yosinaga
  • Patent number: 11139535
    Abstract: Erroneous identification of parts is prevented. A connection module disclosed in the present specification is a connection module that is to be attached to an electricity storage element group in which a plurality of electricity storage elements each including positive and negative electrode terminals are arranged. The connection module includes: a plurality of busbars configured to connect the electrode terminals of the adjacent electricity storage elements to each other; and an insulating protector configured to be fixed to the electricity storage element group in a state in which the insulating protector holds the plurality of busbars, wherein the insulating protector is formed by a first protector and a second protector that is separate from the first protector, the first protector is provided with a first identifier, and the second protector is provided with a second identifier that is different from the first identifier.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 5, 2021
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Naoki Fukushima, Osamu Nakayama, Katsushi Miyazaki, Tetsuya Fujita
  • Patent number: 11133492
    Abstract: A semiconductor structure is provided that contains a non-volatile battery which controls gate bias. The non-volatile battery has a stable voltage and thus the structure may be used in neuromorphic computing. The semiconductor structure may include a semiconductor substrate including at least one channel region that is positioned between source/drain regions. A gate dielectric material is located on the channel region of the semiconductor substrate. A battery stack is located on the gate dielectric material. In accordance with the present application, the battery stack includes, an anode current collector located on the gate dielectric material, an anode region located on the anode current collector, an ion diffusion barrier material located on the anode region, an electrolyte located on the ion diffusion barrier material, a cathode material located on the electrolyte, and a cathode current collector located on the cathode material.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: September 28, 2021
    Assignee: International Business Machines Corporation
    Inventors: Ning Li, Joel P. de Souza, Yun Seog Lee, Devendra K. Sadana
  • Patent number: 11133502
    Abstract: A cathode includes a cathode collector layer, and a cathode active material layer on a surface of the cathode collector layer. The cathode active material layer includes a sintered polycrystalline material having a plurality of crystal grains of a lithium-based oxide, and each of the plurality of crystal grains includes a seed template, and a matrix crystal around the seed template, where the seed template is a single crystal and having a shape of a plate.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: September 28, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyunghoon Cho, Seunghoon Nam, Hwiyeol Park, Hojung Yang, Huisu Jeong, Jin S. Heo
  • Patent number: 11121359
    Abstract: Provided is a bi-polar electrode for a battery, the electrode comprising: (a) a current collector comprising a conductive material foil (e.g. metal foil) having a thickness from 10 nm to 100 ?m and two opposed, parallel primary surfaces, wherein one or both of the primary surfaces is coated with a layer of exfoliated graphite or expanded graphite material having a thickness from 10 nm to 50 ?m; and (b) a negative electrode layer and a positive electrode layer respectively disposed on the two sides of the current collector, each in physical contact with the layer of exfoliated graphite or expanded graphite material or directly with a primary surface of the conductive material foil (if not coated with a exfoliated or expanded graphite layer). Also provided is a battery comprising multiple (e.g. 2-300) bipolar electrodes internally connected in series. There can be multiple bi-polar electrodes that are connected in parallel.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: September 14, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Evan House, Aruna Zhamu, Bor Z. Jang
  • Patent number: 11094982
    Abstract: A battery case including a container configured to house an electrode assembly, wherein the container includes a bottom wall and a plurality of side walls, the bottom wall and the side walls integrated to define a space for housing the electrode assembly and an open side opposed to the bottom wall, the container includes a composite including a polymer matrix, an inorganic moisture absorbent dispersed in the base polymer, and a compatibilizer to promote compatibility between the polymer matrix and the inorganic moisture absorbent, the compatibilizer is included in an amount of less than about 3 wt % based on a total weight of the composite, at least one of the bottom wall and the side walls at a thickness of 1 millimeter has a water vapor transmission rate of less than about 0.07 g/m2/day, when measured at 38° C. and a relative humidity of 100%.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: August 17, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Moo Ho Lee, Moon Il Jung, In Kim, In Su Lee, Junghoon Lee, Hye Jeong Lee, Song Won Hyun