Electrode Patents (Class 429/209)
  • Patent number: 11223050
    Abstract: The present application provide a spliced lithium strip, preparation method thereof, and related negative electrode plate, battery core, lithium ion battery, battery module, battery pack and apparatus. The spliced lithium strip is formed by splicing two or more base lithium strips, wherein the base lithium strip has a thickness fluctuation of less than 5%; the spliced lithium strip has a spliced area and a non-spliced area alternately distributed along the splicing direction, and the spliced area has a maximum thickness H and the non-spliced area has a minimum thickness L, satisfying ? H - L ? L × 1 ? 0 ? 0 ? % ? 6 ? % .
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: January 11, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Bin Xie, Shitong Chen, Zhijie Gong
  • Patent number: 11223065
    Abstract: A solid electrolyte includes a matrix including, as a salt, containing a metal halide containing an alkaline-earth metal and a metal, and at least one filler located in the matrix.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: January 11, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Norihito Fujinoki
  • Patent number: 11217780
    Abstract: The present invention relates to a method for manufacturing a secondary battery and a secondary battery using the same, which can improve the quality of a cut surface of an electrode plate and improve the reliability of the secondary battery. For example, disclosed is a method for manufacturing a secondary battery, the method comprising: an active material layer forming step of forming an active material layer by coating an active material on both surfaces of a collector plate; an active material layer removing step of removing a part of the active material layer by irradiating a laser beam to the both surfaces of the collector plate; and a cutting step of cutting the collector plate by irradiating a laser beam onto the collector plate from which the active material layer has been removed in the active material layer removing step.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: January 4, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jung Hyuck Choi, Won Shik Park
  • Patent number: 11211594
    Abstract: The present application relates to a composite current collector, and a composite electrode and an electrochemical device comprising the same. The composite current collector of the present application comprises an intermediate layer, a first metal layer, a second metal layer, and a through hole. The intermediate layer has a first surface and a second surface opposite to the first surface, the first metal layer is disposed on the first surface, and the second metal layer is disposed on the second surface. The through hole penetrates through the intermediate layer, the first metal layer and the second metal layer, wherein the through hole is filled with an electrically insulated ionic conductor.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: December 28, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Yibo Zhang, Xiang Li, Bin Wang, Qiaoshu Hu
  • Patent number: 11196122
    Abstract: A battery module includes a battery cell stack in which a plurality of battery cells are stacked; a plate disposed to contact the plurality of battery cells on a side surface of the battery cell stack and disposed in a direction parallel to a stacking direction of the plurality of battery cells included in the battery cell stack; and an adhesive layer applied to the plate to contact the battery cell stack and the plate. A battery pack can include the battery module.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: December 7, 2021
    Inventors: Woo Seung Jeong, Young Bum Cho, Youngho Jung, Cheol Yung Kim
  • Patent number: 11196022
    Abstract: Embodiments of the present application provide a package structure and a display device including package structure. The package structure includes a graphene layer and a graphene oxide layer which are disposed in a stack. In the package structure according to the embodiments of the present application, the graphene oxide layer is stacked on the graphene layer.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: December 7, 2021
    Assignee: Yungu (Gu'an) Technology Co., Ltd.
    Inventors: Jiamei Du, Jinqiang Liu, Yaoyan Wu, Zhenhua Xing
  • Patent number: 11189818
    Abstract: Electrolyte dispensing systems according to embodiments of the present technology may include a housing defining an internal volume. The housing may define an inlet and an outlet. The dispensing system may include an inlet roller positioned proximate the housing inlet. The inlet roller may be configured to provide a substantial seal at the housing inlet when a substrate is delivered into the housing. The dispensing system may include a delivery device positioned between the housing inlet and housing outlet. The delivery device may be configured to supply an electrolyte to the substrate delivered into the housing. The electrolyte dispensing system may also include an outlet roller positioned proximate the housing outlet. The outlet roller may be configured to provide a substantial seal at the housing outlet when the substrate is delivered from the housing.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 30, 2021
    Inventor: Tobias Zeilinger
  • Patent number: 11189820
    Abstract: The present invention relates to a method for manufacturing a secondary battery and a secondary battery using the same, which can improve the quality of a cut surface of an electrode plate and improve the reliability of the secondary battery. For example, disclosed is a method for manufacturing a secondary battery, the method comprising: an active material layer forming step of forming an active material layer by coating an active material on both surfaces of a collector plate; an active material layer removing step of removing a part of the active material layer by irradiating a laser beam to the both surfaces of the collector plate; and a cutting step of cutting the collector plate by irradiating a laser beam onto the collector plate from which the active material layer has been removed in the active material layer removing step.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: November 30, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jung Hyuck Choi, Won Shik Park
  • Patent number: 11167990
    Abstract: A compound of Formula I: NaxMnaMb(PO4??)3??(I) wherein M is V, Nb, Ga, Cr, Ti, Zr, or a combination thereof, a is equal to or greater than 0.8 to equal to or less than 1.5, b is equal to or greater than 0.5 to equal to or less than 1.2, x is greater than 0 to equal to or less than 4, ? is equal to or greater than 0 to equal to or less than 1, and a sum of a and b is 2.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: November 9, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yan Wang, Dong-Hwa Seo, Jingyang Wang, Gerbrand Ceder
  • Patent number: 11165090
    Abstract: A method of forming a battery electrode includes spraying a suspension of nanoparticle sized metal oxide to create an active layer.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 2, 2021
    Assignee: HHeLi, LLC
    Inventors: Paige L. Johnson, James Dean Fleetwood, II
  • Patent number: 11158846
    Abstract: The invention refers to negative electrode plate, preparation method thereof and electrochemical device. The negative electrode plate comprises: a negative current collector; a negative active material layer disposed on at least one surface of the negative current collector, the negative active material layer comprising opposite first surface and second surface, wherein the first surface is disposed away from the negative current collector; and an inorganic dielectric layer consisting of an inorganic dielectric material disposed on the first surface of the negative active material layer. The negative electrode plate provided by the application is useful in an electrochemical device, and can result in an electrochemical device having simultaneously excellent safety performance and cycle performance.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: October 26, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Changliang Sheng, Huafeng Huang, Qisen Huang
  • Patent number: 11158851
    Abstract: An electrode for an electrochemical device has a coated portion in which an active material layer is formed on a current collector; a non-coated portion in which the active material layer is not formed; and a resin layer that is laminated such that the coated portion and a portion of the non-coated portion are covered; wherein: the resin layer has a high-permeability portion having high ion permeability and positioned on the coated portion; a low-permeability portion having low ion permeability and positioned on a portion of the non-coated portion; and a transition portion in which ion permeability decreases from the high-permeability portion side toward the low-permeability portion side and positioned between the high-permeability portion and the low-permeability portion.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 26, 2021
    Assignee: Envision AESC Energy Devices Ltd.
    Inventors: Masanori Hirai, Kazuya Mimura
  • Patent number: 11145851
    Abstract: A lithium battery includes a cathode, a composite lithium metal anode, and an electrolyte in contact with the cathode and the composite lithium metal anode. The composite lithium metal anode includes a porous matrix and lithium metal disposed within the porous matrix.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: October 12, 2021
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Yi Cui, Zheng Liang, Yayuan Liu, Dingchang Lin
  • Patent number: 11108069
    Abstract: A method for manufacturing a membrane electrode assembly for a fuel cell, in which uniform pressure is applied to the entire area of an electrode during a transferring process to ensure uniformity of products. The method includes an electrode forming step of forming an electrode layer by coating an electrode slurry on a support; a transferring step of aligning the electrode layer on both surfaces of an electrolyte membrane and applying heat and pressure to transfer the electrode layer; and removing the support, wherein in the transferring step, gas pressure is applied to a gas pressure platen of a stretchable material to transfer the electrode layer to the electrolyte membrane.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 31, 2021
    Inventors: Jin-Hwa Lee, Jun-Young Kim
  • Patent number: 11101528
    Abstract: A lithium ion secondary battery that includes a positive electrode, a negative electrode, a separator, a nonaqueous electrolytic solution, and a PTC layer between a positive electrode mixture layer and a positive electrode current collector and/or between a negative electrode mixture layer and a negative electrode current collector, the PTC layer having a positive temperature coefficient of resistance. The PTC layer contains nonconductive filler particles, and the electronic resistance at 120° C. is equal to or more than 100 times the electronic resistance at room temperature.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 24, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Masato Fujioka
  • Patent number: 11094940
    Abstract: The present disclosure provides a polymer binder for a secondary battery electrode, which serves as a binder for a carbon-coated lithium iron phosphate (c-LiFePO4) electrode and is a copolymer containing a hard segment capable of hydrogen bonding in the electrode and a soft segment having a polyol structure. Also, the present disclosure provides a secondary battery electrode and a lithium secondary battery containing the same, wherein a nonaqueous electrolyte solution is applied to an electrode mixture containing the binder for an electrode.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 17, 2021
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jang Wook Choi, Yong Hee Lee
  • Patent number: 11088388
    Abstract: Disclosed is a clamping member and a battery module using the same. The clamping member includes a pair of pressing units configured to respectively press an upper plate and a lower plate of a battery assembly in which a plurality of batteries is stacked, so that a stacking structure of the battery assembly is fixed, and a support unit configured to support the pair of pressing units so that the upper plate and the lower plate of the battery assembly are pressed by the pair of pressing units, wherein at least one of the pair of pressing units includes a snap-fitting portion coupled to the upper plate or the lower plate by means of snap-fitting, and a screwing portion coupled to the upper plate or the lower plate coupled to the snap-fitting portion, by means of screwing, thereby fixing the battery stacking structure with excellent space efficiency, ensuring easy assembling of the battery module and improving durability of the battery module.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: August 10, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyuk An, Gang-U Lee, Jun-Kyu Park
  • Patent number: 11075403
    Abstract: The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing Li7La3Zr2O12 (LLZ) garnet powder including preparing a mixture by first dry mixing Li2CO3, La2O3, ZrO2, and Al2O3. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000° C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 ?m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300° C.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: July 27, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ju Young Sung, Ho Taek Lee, Eun Ji Kwon, Yong Jun Jang, Ji Na Kim
  • Patent number: 11067807
    Abstract: Smart glasses taking a proportion of power it requires from ambient light includes a plurality of lenses, a frame structure connected to the plurality of lenses, a display module disposed in at least one of the plurality of lenses, a battery disposed in the frame structure, and a processor electrically connected to the display module and the battery. The display module includes display units arranged in a matrix. Each display unit comprises at least one micro LED unit, and at least one first optical photoelectric conversion unit for converting solar energy into electrical power. The battery is electrically connected to the display module.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 20, 2021
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Kwang-Pi Lee, Chi-An Chen
  • Patent number: 11056682
    Abstract: Provided is a positive electrode active material particle including a core that includes lithium cobalt oxide represented by the following Chemical Formula 1; and a shell that is located on the surface of the core and includes lithium cobalt phosphate represented by the following Chemical Formula 2, wherein the shell has a tetrahedral phase: LiaCo(1-x)MxO2-yAy??(1) wherein M is at least one of Ti, Mg, Zn, Si, Al, Zr, V, Mn, Nb, or Ni, A is oxygen-substitutional halogen, and 0.95?a?1.05, 0?x?0.2, 0?y?0.2, and 0?x+y?0.2, LibCoPO4??(2) wherein 0?b?1.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: July 6, 2021
    Inventors: Younguk Park, Chi Ho Jo, Bo Ram Lee, Sungbin Park, Hyuck Hur, Wang Mo Jung
  • Patent number: 11043709
    Abstract: A metal-air battery including an anode layer; a solid electrolyte layer; and a cathode layer directly contacting the solid electrolyte layer. The solid electrolyte layer and the cathode layer are a single unitary and indivisible body with no physical interlayer boundary between the solid electrolyte layer and the cathode layer. A portion of the cathode layer may be within the solid electrolyte layer. The cathode layer may protrude from the solid electrolyte layer. The method of manufacturing a metal-air battery may include forming a solid electrolyte layer on an anode layer and chemically reducing solid electrolyte in a part of the solid electrolyte layer.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunpyo Lee, Hyukjae Kwon, Sangbok Ma, Heungchan Lee, Dongmin Im, Wonsung Choi
  • Patent number: 11043660
    Abstract: A positive electrode active material which can improve cycle characteristics of a secondary battery is provided. Two kinds of regions are provided in a superficial portion of a positive electrode active material such as lithium cobaltate which has a layered rock-salt crystal structure. The inner region is a non-stoichiometric compound containing a transition metal such as titanium, and the outer region is a compound of representative elements such as magnesium oxide. The two kinds of regions each have a rock-salt crystal structure. The inner layered rock-salt crystal structure and the two kinds of regions in the superficial portion are topotaxy; thus, a change of the crystal structure of the positive electrode active material generated by charging and discharging can be effectively suppressed.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: June 22, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teruaki Ochiai, Takahiro Kawakami, Mayumi Mikami, Yohei Momma, Masahiro Takahashi, Ayae Tsuruta
  • Patent number: 11031585
    Abstract: To provide: coated nickel-based lithium-nickel composite oxide particles which are able to be handled in the atmosphere and enable the achievement of a coating film of a lithium ion conductor having no adverse effects on battery characteristics; and a method for producing the coated nickel-based lithium-nickel composite oxide particles.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 8, 2021
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Yosuke Ota
  • Patent number: 11031597
    Abstract: A negative electrode material for a lithium-ion secondary battery contains graphitic particles of which a standard deviation of circularity at a cumulative frequency ranging from 10% by particle to 90% by particle from the lower circularity, determined by a flow-type particle analyzer, is from 0.05 to 0.1.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 8, 2021
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Kento Hoshi, Hideyuki Tsuchiya, Tsutomu Satoh
  • Patent number: 11031632
    Abstract: The present invention relates to a method for recovering a positive electrode active material from a lithium secondary battery including: 1) separating a positive electrode into a collector and a positive electrode part; 2) removing an organic substance by firing the separated positive electrode part; 3) washing the fired resultant and removing remaining fluorine (F); 4) adding a lithium-containing material into the washed resultant and firing to recover a lithium transition metal oxide.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 8, 2021
    Inventors: Dong Hun Lee, Dae Jin Lee, Ji Hoon Ryu, Gi Beom Han, Dong Hwi Kim, Wang Mo Jung, Sang Wook Lee, Eun Sol Lho
  • Patent number: 11024872
    Abstract: The present disclosure provides a cathode material, a method for preparing the same, a cathode and lithium ion battery having the same. The cathode material includes an active component; and a sodium salt dispersed in the active component.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 1, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Pengwei Chen, Meng Wang, Leimin Xu, Liang Wang
  • Patent number: 11018391
    Abstract: A battery cell, which includes an electrode assembly, a battery case configured to accommodate the electrode assembly, and two pairs of electrode leads provided at outer surfaces of the battery case and connected to the electrode assembly, is provided.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: May 25, 2021
    Assignee: LG CHEM, LTD.
    Inventor: Ju-Hyun Kang
  • Patent number: 10991945
    Abstract: An electrode active material for non-aqueous secondary batteries containing a compound represented by formula (1) is a material that is less likely to dissolve in an electrolyte during charge and discharge, and that exhibits an excellent discharge capacity and excellent charge-and-discharge cycle characteristics: the compound represented by formula (1) wherein Y1 and Y2 are identical or different and represent an oxygen atom, a sulfur atom, or a selenium atom, R1 to R8 are identical or different and represent an oxygen atom or a group represented by —OLi, R9 to R12 are identical or different and represent a hydrogen atom or an organic group, and bonds that are each represented by a solid line and a dashed line indicate a single bond or a double bond.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: April 27, 2021
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaru Yao, Hisanori Ando
  • Patent number: 10964939
    Abstract: A positive electrode for electrochemical device includes a positive current collector and a positive electrode material layer supported on the positive current collector. The positive electrode material layer includes a positive electrode active material. The positive electrode active material includes an inner core portion containing polyaniline and a surface layer portion containing poly(3,4-ethylenedioxythiophene) and polythiophene. The inner core portion is fibrous or grain-aggregate, and the surface layer portion covers at least a part of the inner core portion. Furthermore, an electrochemical device includes the above-described positive electrode, a negative electrode including a negative electrode material layer that occludes and releases a lithium ion, and a nonaqueous electrolytic solution having lithium ion conductivity.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 30, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kiyohiro Ishii
  • Patent number: 10957896
    Abstract: An electrode including conduction channels includes at least one electrode layer layered onto a current collector, the electrode layer including a plurality of active material particles and a plurality of high aspect ratio components. The high aspect ratio components are configured to provide ion conduction channels through the electrode layer. In some examples, the electrode may include two or more electrode layers, at least one of which includes high aspect ratio components. In some examples, the high aspect ratio components may be oriented transverse to the current collector to provide ion transport through a first electrode layer to a second electrode layer.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 23, 2021
    Assignee: EnPower, Inc.
    Inventors: Jonathan Hwang, Adrian Yao
  • Patent number: 10944100
    Abstract: At least one of the anode and cathode of a lithium-ion processing electrochemical cell are prepared with a layer of mixed particles of both active lithium battery electrode materials and lithium ion adsorbing capacitor materials, or with co-extensive, contiguous layers of battery electrode particles in one layer and capacitor particles in the adjoining layer. The proportions of active battery electrode particles and active capacitor particles in one or both of the electrodes are predetermined to provide specified energy density (Wh/kg) and power density (W/kg) properties of the cell for its intended application.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: March 9, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Haijing Liu, Zhiqiang Yu, Dewen Kong, Meiyuan Wu
  • Patent number: 10938020
    Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer including active material particles and solid electrolyte particles being present away from the active material particles. The active material particles have lithium ion conductivity. The solid electrolyte particles have first ion conductivity. The solid electrolyte particles include a first ion that is at least one selected from the group consisting of an alkali metal ion excluding a lithium ion, a Ca ion, an Mg ion, and an Al ion.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: March 2, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Kazuomi Yoshima, Yasunobu Yamashita, Yasuhiro Harada, Norio Takami
  • Patent number: 10923707
    Abstract: A method of making an electrode for an electrochemical cell includes the step of providing an electrode composite comprising from 70-98% active material, from 0-10% conductive material additives, and from 2-20% polymer binder, based on the total weight of the electrode composite. The electrode composite is mixed and then compressed the electrode composite into an electrode composite sheet. The electrode composite sheet is applied to a current collector with pressure to form an electrode, wherein the electrode possesses positive characteristics for adhesion according to ASTM standard test D3359-09e2, entitled Standard Test Methods for Measuring Adhesion by Tape Test, and wherein the electrode composite sheet and the electrode possess positive characteristics for flexibility according to the Mandrel Test. The binder can be a single nonfluoropolymer binder. Dry process electrodes are also disclosed.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: February 16, 2021
    Assignee: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Jian-ping Zheng, Qiang Wu
  • Patent number: 10923686
    Abstract: A heat dissipation structure for a flexible display is disclosed, and includes: a substrate, an anode metal layer, light emitting diode elements, a pixel defining layer, a cathode metal layer, and a heat conducting insulator disposed in sequence. The pixel defining layer has grooves, and the heat conducting insulator is sandwiched between the anode metal layer and the cathode metal layer, and disposed in the grooves. The heat conducting insulator is used to connect the anode metal layer and the cathode metal layer, so as to form an electrically insulating and thermally conducting path between the anode metal layer and the cathode metal layer.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: February 16, 2021
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Ying Wan, Sheng Liu
  • Patent number: 10923772
    Abstract: The present disclosure provides a cable-type secondary battery which includes: at least one inner electrode; a separation layer formed to surround the outer surface of the inner electrode and configured to prevent a short of the electrodes; a sheet-type outer electrode surrounding the separation layer or the inner electrode and formed by spiral winding; and a polymer electrolyte coating layer formed to surround the sheet-type outer electrode, wherein the sheet-type outer electrode is formed by spiral winding to avoid an overlap.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: February 16, 2021
    Inventors: Yo-Han Kwon, In-Sung Uhm, Je-Young Kim, Young-Ji Yuk
  • Patent number: 10916808
    Abstract: One aspect of the present invention provides a sulfide solid-state battery provided with: a negative electrode collector containing copper; a negative electrode mix layer disposed on the negative electrode collector, and containing a negative electrode active material; a positive electrode mix layer containing a positive electrode active material; a sulfide solid electrolyte layer sandwiched between the negative electrode mix layer and the positive electrode mix layer, and having a protruding portion that protrudes from a peripheral edge of the negative electrode mix layer and extends up to the negative electrode collector; and a reference electrode disposed in the protruding portion.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: February 9, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Nagase
  • Patent number: 10910635
    Abstract: A secondary battery electrode manufacturing method comprises applying a slurry for a first layer to a current collector, applying a slurry for a second layer to the slurry for the first layer before the slurry for the first layer dries, and drying the slurries to obtain a laminated structure in which the first and second layers are laminated in this order on the current collector. A first and second binder or thickener for the respective slurries are selected such that when viscosities are measured for a first solution including solvent and the first binder or thickener dissolved in the solvent in a specific mass ratio and a second solution including a solvent and the second binder or thickener dissolved in the solvent at the same mass ratio under the same conditions, the viscosity of the first solution is higher than the viscosity of the second solution.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 2, 2021
    Assignee: NEC CORPORATION
    Inventors: Makihiro Otohata, Noboru Yoshida
  • Patent number: 10910673
    Abstract: An electrode body, which includes a positive electrode plate and a negative electrode plate, includes a positive-electrode tab group that is composed of a plurality of positive electrode tabs. The positive-electrode tab group is disposed between a sealing plate and an electrode body, and a positive-electrode current collector includes a base portion and a tab connection portion that is folded from an end of the base portion. The base portion of the positive-electrode current collector is connected to a positive electrode terminal, and the tab connection portion of the positive-electrode current collector is connected to the positive-electrode tab group. A fuse portion is formed in the positive-electrode current collector, and a first-insulator second region of a first insulator, which is connected to an inner insulator, is disposed between the base portion and the tab connection portion.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: February 2, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Hiroshi Takabayashi
  • Patent number: 10903488
    Abstract: To provide a non-aqueous electrolyte secondary battery negative electrode material that can be produced even without performing a heat treatment at a high temperature such as 2,000° C. or higher and can have the discharge capacity further increased. The non-aqueous electrolyte secondary battery negative electrode material according to the invention has a core portion including carbonaceous negative electrode active material particles; and a shell portion including a polyimide and silicon-based negative electrode active material particles and/or tin-based negative electrode active material particles. There is a feature that the value of the ratio of the volume average particle size (D50) of the silicon-based negative electrode active material particles and/or tin-based negative electrode active material particles with respect to the volume average particle size (D50) of the carbonaceous negative electrode active material particles is 0.001 to 0.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: January 26, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko Ohsawa, Yuki Kusachi, Hajime Satou, Hiroshi Akama, Hideaki Horie, Naofumi Shoji
  • Patent number: 10892523
    Abstract: An electrolyte composition has a fluoroalkylsulfonyl salt and water. The water is present, relative to the fluoroalkylsulfonyl salt, at a molar ratio within a range of 0.1:1 to 10:1, inclusive. This creates a “water-in-salt” in which individual water molecules are surrounded by salt rather than vice versa. Water contained in this environment is electrochemically stabilized relative to a bulk water. The electrolyte also has an organic carbonate present, relative to the fluoroalkylsulfonyl salt, at a molar ratio within a range of 0.1:1 to 50:1, inclusive. It has been discovered that inclusion of the organic carbonate further increases the electrochemical stability of the water within the “in-salt” environment.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: January 12, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Kensuke Takechi, Ruidong Yang
  • Patent number: 10886569
    Abstract: A non-aqueous electrolyte secondary battery includes a negative electrode, a positive electrode, and an electrolyte solution. The electrolyte solution contains at least one selected from the group consisting of ethylene carbonate, fluoroethylene carbonate, and vinylene carbonate. The negative electrode includes a negative electrode mixture layer. The negative electrode mixture layer contains a silicon-containing particle and a graphite particle. In a Log-differential pore volume distribution of the negative electrode mixture layer, the ratio of a Log-differential pore volume at a pore diameter of 2 ?m to a Log-differential pore volume at a pore diameter of 0.2 ?m is within a range of 10.5 to 33.1.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: January 5, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ryosuke Ohsawa, Akira Tsujiko, Kaoru Inoue
  • Patent number: 10865480
    Abstract: A vapour deposition method for preparing an amorphous lithium-containing oxide or oxynitride compound not containing phosphorous comprises providing a vapour source of each component element of the compound, including at least a source of lithium, a source of oxygen, a source of nitrogen in the case of an oxynitride compound, and a source or sources of one or more glass-forming elements; heating a substrate to substantially 180° C. or above; and co-depositing the component elements from the vapour sources onto the heated substrate wherein the component elements react on the substrate to form the amorphous compound.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: December 15, 2020
    Assignees: Ilika Technologies Limited, Toyota Motor Corporation
    Inventors: Brian Elliott Hayden, Duncan Clifford Alan Smith, Christopher Edward Lee, Alexandros Anastasopoulos, Chihiro Yada, Laura Mary Perkins, David Michael Laughman
  • Patent number: 10862110
    Abstract: A composite including: at least one selected from a silicon oxide of the formula SiO2 and a silicon oxide of the formula SiOx wherein 0<x<2; and graphene, wherein the silicon oxide is disposed in a graphene matrix.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inhyuk Son, Jonghwan Park, Jaejun Chang, Junhwan Ku, Xiangshu Li, Jaeman Choi
  • Patent number: 10854880
    Abstract: An all-solid-state battery including a laminated body with a cathode current collecting layer, cathode active material layer, solid electrolyte layer, anode active material layer, and anode current collecting layer in this order, and a restraining member that applies a restraining pressure to the laminated body in a laminated direction; containing a conductive material, an insulating inorganic substance, and a polymer, is in at least one of a position between the cathode active material layer and the cathode current collecting layer, and a position between the anode active material layer and the anode current collecting layer; the content of the insulating inorganic substance in the PTC layer is 10 volume % or more and 40 volume % or less; and a proportion of a particle size D90 of the insulating inorganic substance, D90, to a thickness of the PTC layer, TPTC, regarded as D90/TPTC is 0.6 or more and 1.0 or less.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: December 1, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyo Ebisuzaki, Hideaki Nishimura
  • Patent number: 10854884
    Abstract: A method of manufacturing a membrane electrode assembly for hydrogen fuel cells includes mixing an electrode binder with a catalyst, followed by dispersing and thermal treatment, to prepare an electrode slurry, coating release paper with the electrode slurry to produce an electrode, and bonding the release paper-coated electrode to an electrolyte membrane, followed by thermal treatment, to perform electrode-membrane bonding.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: December 1, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Sukhwan Yun
  • Patent number: 10854913
    Abstract: Provided is a solid electrolyte including electrolyte particles, wherein each of the electrolyte particles includes at least one of an O—S—O structure and an O—S—OH structure.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: December 1, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Kenji Homma, Satoru Watanabe, Tamotsu Yamamoto
  • Patent number: 10833355
    Abstract: The application provides a porous film and a lithium-ion battery. The porous film according to the present application has excellent adhesion, and the pore structure of the porous film can still be well maintained after being immersed in the electrolyte, thereby reducing the probability of pore blockage of the porous film and allowing the lithium-ion battery to have high ionic conductivity. Therefore, the rate performance of the lithium-ion battery is greatly improved, and the lithium-ion battery provided has excellent rate performance and cycle performance.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 10, 2020
    Assignee: Ningde Amperex Technology Limited
    Inventors: Jianjian Yi, Xinzhi Zhang, Zengbin Wei, Xinghua Tao
  • Patent number: 10833318
    Abstract: In an aspect, an electrode for an electrochemical cell comprises: a structure having a nano- or micro-architected three-dimensional geometry; said structure comprising one or more active carbon allotrope materials; wherein said structure is characterized by an average density less than or equal to 2.3 g cm?3 and an average specific strength (strength-to-density ratio) greater than or equal to 0.004 GPa g?1 cm3. Also disclosed herein are methods for making an electrode for an electrochemical cell, and methods for making an electrochemical cell.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: November 10, 2020
    Assignee: California Institute of Technology
    Inventors: Julia R. Greer, Andrey Vyatskikh, John S. Thorne, Akira Kudo, Kai Narita, Michael A. Citrin, Xuan Zhang
  • Patent number: 10825614
    Abstract: An energy harvesting device includes: a first nanoporous electrode and a second nanoporous electrode, each of which is configured to which store electrical charge; a first current collector connected to the first nanoporous electrode and a second current collector connected to the second nanoporous electrode; and an enclosure that contains the first and second nanoporous electrodes and the first and second current collectors and transfers a force applied from the outside to the first nanoporous electrode and the second nanoporous electrode, wherein at least one of the first nanoporous electrode and the second nanoporous electrode comprises an ion conductive polymer.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: November 3, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., THE PENN STATE RESEARCH FOUNDATION
    Inventors: Kyounghwan Choi, Qiming Zhang, Yue Zhou, Qing Wang, Qi Li
  • Patent number: 10811729
    Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode including a positive electrode mix layer, a negative electrode including a negative electrode mix layer, and a nonaqueous electrolyte containing a nonaqueous solvent. A surface of the negative electrode mix layer is provided with grooves. The nonaqueous electrolyte contains 10 volume percent or more of a fluorinated solvent with respect to the volume of the nonaqueous solvent and has a viscosity (25° C.) of 3.50 mPa·s or more as measured with a differential pressure viscometer.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: October 20, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomoki Tsuji, Masahiro Shiraga, Manabu Takijiri, Takayuki Shirane, Hiroyuki Fujimoto