Having Utility As A Reactive Material In An Electrochemical Cell; E.g., Battery, Etc. Patents (Class 252/182.1)
  • Patent number: 11522172
    Abstract: A negative electrode for a lithium metal battery, a manufacturing method thereof, and a lithium battery including the same. An adhesive layer including a binder and a conductive material between the negative current collector and the negative active material improves conductivity while also improving adherence between a negative current collector and a negative active material of the lithium battery.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: December 6, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventor: Jeong In Yu
  • Patent number: 11515528
    Abstract: Described herein are improved composite anodes and lithium-ion batteries made therefrom. Further described are methods of making and using the improved anodes and batteries. In general, the anodes include a porous composite having a plurality of agglomerated nanocomposites. At least one of the plurality of agglomerated nanocomposites is formed from a dendritic particle, which is a three-dimensional, randomly-ordered assembly of nanoparticles of an electrically conducting material and a plurality of discrete non-porous nanoparticles of a non-carbon Group 4A element or mixture thereof disposed on a surface of the dendritic particle. At least one nanocomposite of the plurality of agglomerated nanocomposites has at least a portion of its dendritic particle in electrical communication with at least a portion of a dendritic particle of an adjacent nanocomposite in the plurality of agglomerated nanocomposites.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: November 29, 2022
    Assignees: GEORGIA TECH RESEARCH CORPORATION, SILA NANOTECHNOLOGIES, INC.
    Inventors: Gleb Yushin, Oleksandr Magazynskyy, Patrick Dixon, Benjamin Hertzberg
  • Patent number: 11515531
    Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer. The active material-containing layer contains an active material and a flat plate-shaped silicate.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: November 29, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasunobu Yamashita, Keigo Hoshina, Yasuhiro Harada, Norio Takami
  • Patent number: 11490740
    Abstract: The invention pertains to a method of monitoring the quality of a mattress during its lifetime, wherein the mattress is an assembly of multiple separate parts, wherein the parts are mechanically interconnected, the method comprising during its lifetime, assessing at least one property of the mattress, determining whether or not the property meets a predetermined specification, and when the property does not meet the predetermined specification, identifying a part of the said multiple separate parts that corresponds to the property, removing the identified part from the assembly and optionally replacing the removed part with a replacement part, wherein the mattress that is monitored is manufactured by forming the mechanical interconnection with an adhesive, which adhesive has a first order phase-transition temperature between 80° C. and 180° C.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 8, 2022
    Assignee: COVESTRO (NETHERLANDS) B.V.
    Inventors: Alwin Papegaaij, Geert Doorlag, Hendrik Willem Dijkman, Jan Henderikus Udding
  • Patent number: 11495797
    Abstract: A negative electrode active material including a silicon-carbon-based particle, the silicon-carbon-based particle having a SiCx matrix and boron doped in the SiCx matrix, wherein x of the SiCx matrix is 0.3 or more and less than 0.6.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: November 8, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Il Geun Oh, Eun Kyung Kim, Yong Ju Lee, Rae Hwan Jo, Su Min Lee, Jung Hyun Choi
  • Patent number: 11489158
    Abstract: Use of aluminum in a lithium rich cathode material of the general formula (I) for suppressing gas evolution from the cathode material during a charge cycle and for increasing the charge capacity of the cathode material.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 1, 2022
    Assignee: Dyson Technology Limited
    Inventors: Matthew Robert Roberts, Peter George Bruce, Francis Gachau Kinyanjui
  • Patent number: 11472715
    Abstract: The method of making carbon-zinc oxide (C—ZnO) nanoparticles includes grinding a mixture of zinc nitrate hexahydrate (Zn(NO3)2.6H2O) and furfural (C4H3OCHO) to produce a ground mixture. As a non-limiting example, the zinc nitrate hexahydrate (Zn(NO3)2.6H2O) and the furfural (C4H3OCHO) may be placed in a mortar and ground, by hand with a pestle, for approximately 10 minutes. The ground mixture is then heated to produce the C—ZnO nanoparticles. As a non-limiting example, the ground mixture may be heated in a quartz tube at a temperature of approximately 500° C.
    Type: Grant
    Filed: February 6, 2021
    Date of Patent: October 18, 2022
    Assignee: KING FAISAL UNIVERSITY
    Inventors: Sajid Ali Ansari, Nazish Parveen, Abdullah Aljaafari, Adil Ahmed Al Shoaibi
  • Patent number: 11476456
    Abstract: A lithium cobalt-based positive electrode active material is provided. The lithium cobalt-based positive electrode active material includes a core portion including a lithium cobalt-based oxide represented by Formula 1 and a shell portion including a lithium cobalt-based oxide represented by Formula 2, wherein the lithium cobalt-based positive electrode active material includes 2500 ppm or more, preferably 3000 ppm or more of a doping element M based on the total weight of the positive electrode active material. An inflection point does not appear in a voltage profile measured during charging/discharging a secondary battery including the lithium cobalt-based positive electrode active material.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 18, 2022
    Inventors: Chi Ho Jo, Min Kyu You, Sung Bin Park, Hyuck Hur, Jin Tae Hwang, Wang Mo Jung
  • Patent number: 11462724
    Abstract: A method for manufacturing electrodes includes mixing a powder to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and outputting segments of the fibrillated dough. The method also includes processing the segments into a continuous plaque, drying the continuous plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate to form an electrode blank, and sectioning the electrode blank into electrodes.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: October 4, 2022
    Assignee: ZAF ENERGY SYSTEMS, INCORPORATED
    Inventors: Michael J. Gordon, Shiloh J. Williams, Allen Charkey, Andrew Souder, II
  • Patent number: 11450888
    Abstract: One aspect of the present invention is a nonaqueous electrolyte for an energy storage device comprising: an alkali metal salt; a first aprotic organic solvent coordinating to an alkali metal ion in the alkali metal salt, and not including a fluorine atom; a second aprotic organic solvent including a fluorine atom; and an additive comprising a polar group and a group including a fluorine atom, wherein a content of the alkali metal salt is no less than 0.9 mol/kg and less than 2 mol/kg, a content of the first aprotic organic solvent with respect to the content of the alkali metal salt in terms of a molar ratio is no less than 0.7 and no greater than 4, and a content of the second aprotic organic solvent with respect to a total amount of the first aprotic organic solvent, the second aprotic organic solvent and the additive is no less than 40% by volume.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: September 20, 2022
    Assignees: GS Yuasa International Ltd., THE DOSHISHA
    Inventors: Hiroe Nakagawa, Katsuyuki Takahashi, Minoru Inaba, Takayuki Doi, Ryo Matsumoto
  • Patent number: 11450847
    Abstract: Alkaline electrochemical cells are provided, wherein dissolved zinc oxide or zinc hydroxide is included at least in the free electrolyte solution, and/or solid zinc oxide or zinc hydroxide is included in the anode, so as to slow formation of a zinc oxide passivation layer on a zinc electrode. Methods for preparing such cells are also provided.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: September 20, 2022
    Assignee: Energizer Brands, LLC
    Inventors: Robert P. Johnson, Robert E. Ray, Jr., Weiwei Huang, Zhufang Liu, Steven J. Limmer
  • Patent number: 11450853
    Abstract: An object of the present invention is to provide a carbon material for negative electrodes of non-aqueous secondary batteries having a high capacity, a high output, excellent cycle characteristics and a low irreversible capacity. The present invention relates to a carbon material for negative electrodes of non-aqueous secondary batteries, the carbon material comprising: (1) a composite carbon particles (A) containing elemental silicon, and (2) amorphous composite graphite particles (B) in which graphite particles (C) and amorphous carbon are composited.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 20, 2022
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Daigo Nagayama, Tooru Fuse, Hisako Kondo
  • Patent number: 11444272
    Abstract: The present disclosure relates to a positive electrode for a solid electrolyte battery which includes: a positive electrode current collector; a first positive electrode active material layer formed on at least one surface of the positive electrode current collector and including a first positive electrode active material, a first solid electrolyte and a first electrolyte salt; and a second positive electrode active material layer formed on the first positive electrode active material layer and including a second positive electrode active material, a second solid electrolyte, a second electrolyte salt and a plasticizer, wherein the plasticizer has a melting point of 30-130° C. The present disclosure also relates to a solid electrolyte battery including the positive electrode.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: September 13, 2022
    Inventors: Ji-Hoon Ryu, Jung-Pil Lee, Sung-Joong Kang, Eun-Bee Kim, Hyo-Sik Kim, Suk-Woo Lee, Jae-Hyun Lee
  • Patent number: 11424456
    Abstract: A mixed conductor, a method of preparing the same, and a cathode, a lithium-air battery, and an electrochemical device each including the mixed conductor. The mixed conductor is represented by Formula 1 and having electronic conductivity and ionic conductivity: LixMO2-???Formula 1 wherein, in Formula 1, M is a Group 4 element, a Group 5 element, a Group 6 element, a Group 7 element, a Group 8 element, a Group 10 element, a Group 11 element, a Group 12 element, or a combination thereof, and 0<x<1 and 0???1 are satisfied.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 23, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sangbok Ma, Hyukjae Kwon, Hyunpyo Lee, Donghwa Seo, Dongmin Im
  • Patent number: 11424438
    Abstract: A cathode active material for a lithium secondary battery, the cathode method including a core including a lithium metal oxide and a coating layer disposed on the surface and the inner grain boundaries of the core, wherein the coating layer includes a metal carbide, and a method of manufacturing the same.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: August 23, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jieun Lee, Yeolmae Yeo, Seung-Min Oh, Sang Mok Park, Yoon Sung Lee, Dongjun Kim
  • Patent number: 11411251
    Abstract: An electrolyte including: a lithium salt; a non-aqueous solvent; a compound represented by Formula 1; and a compound represented by Formula 2 wherein R1, R2, R3, R11, and R12 in Formulae 1 and 2 are as described in the detailed description.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: August 9, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Insun Park, Myongchun Koh, Jinah Seo, Dongyoung Kim, Yeonji Chung
  • Patent number: 11387463
    Abstract: Provided is an electrode for an electrochemical device that has excellent peel strength and can ensure a high level of safety of an electrochemical device. The electrode for an electrochemical device includes a current collector and an electrode mixed material layer on the current collector. The electrode mixed material layer contains an electrode active material, a binder, and a foaming agent. The binder is a polymer including a diene monomer unit and/or nitrile group-containing monomer unit, and in which the total proportion constituted by the diene monomer unit and nitrile group-containing monomer unit is 10 mass % to 80 mass %. Volume resistivity RA of a laminate of the electrode mixed material layer and current collector at 25° C. is 0.1 ?·cm to 200 ?·cm, and a ratio of volume resistivity RB of the laminate at 350° C. relative to volume resistivity RA of the laminate at 25° C. is 10 or more.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: July 12, 2022
    Assignee: ZEON CORPORATION
    Inventors: Yasuhiro Isshiki, Kenya Sonobe
  • Patent number: 11365130
    Abstract: The present invention provides a positive electrode active material precursor for a lithium secondary battery, in which the positive electrode active material precursor is represented by the following composition formula (I), a ratio (?/?) between a half width ? of a peak that is present within a range of a diffraction angle 2?=19.2±1° and a half width ? of a peak that is present within a range of 2?=38.5±1° is equal to or greater than 0.9 in powder X-ray diffraction measurement using a CuK? beam: NixCoyMnzMw(OH)2??(I) [0.7?x<1.0, 0<y?0.20, 0?z?0.20, 0?w?0.1, and x+y+z+w=1 are satisfied, and M is one or more selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zr, V, Nb, Cr, Mo, W, Fe, Ru, Cu, Zn, B, Al, Ga, Si, Sn, P, and Bi].
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: June 21, 2022
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, TANAKA CHEMICAL CORPORATION
    Inventors: Yuichiro Imanari, Yusuke Maeda
  • Patent number: 11359215
    Abstract: A bacterially induced crystal particle is formed by a composite shell that encloses a hollow space. The composite shell layer includes a biomaterial and a metallic material. The biomaterial includes cell wall or cell membrane of a bacterium. The metallic material includes oxides, sulfides, selenides, acid salt compounds of a transition metal, or any combination thereof. When the bacterially induced crystal particle is spheric, the composite shell is formed by two dome-shaped portions, and a thickness of each of the dome-shaped portions is not less than 1/73 of a diameter of the bacterially induced crystal particle. Alternatively, when the bacterially induced crystal particle is rod-shaped, the thickness of the dome-shaped portions is not less than 1/73 of a width of the bacterially induced crystal particle, and a thickness of the cylindrical portion is not less than 1/37 of the width of the bacterially induced crystal particle.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: June 14, 2022
    Assignee: ACON-HOLDING INC.
    Inventor: Pao-Hung Lin
  • Patent number: 11348741
    Abstract: This invention relates to electrical engineering. In particular, the invention relates to the design of electrochemical device storing electric energy, and can be used in modern power engineering, for example, in devices storing regenerative braking energy in transport, as traction batteries for electric transport (electric vehicles, hybrid electric vehicles), in emergency power systems when operating in a floating or trickle charge mode. The invention ensures steady operation of this device due to stable preservation of a given concentration of electrolyte components on the electrodes, and improvement of service life in various modes of operation.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: May 31, 2022
    Assignee: Geyser Batteries OY
    Inventors: Aleksey Ivanovich Belyakov, Nelya Vasilievna Khodyrevskaya, Mikhail Serafimovich Zvyagintsev
  • Patent number: 11322729
    Abstract: A method for manufacturing zinc negative electrodes includes mixing a powder including zinc with polytetrafluoroethylene to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and extruding the fibrillated dough through a die to form a ribbon. The method also includes calendering the ribbon to a target thickness to form a plaque, drying the plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate to form an electrode blank, and sectioning the electrode blank into zinc negative electrodes.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 3, 2022
    Assignee: ZAF ENERGY SYSTEMS, INCORPORATED
    Inventors: Michael J. Gordon, Shiloh J. Williams, Allen Charkey, Andrew Souder, II
  • Patent number: 11289691
    Abstract: The present invention discloses a spherical or spherical-like lithium battery cathode material, a battery and preparation methods and applications thereof. The chemical formula of the cathode material is: LiaNixCoyMnzMbO2, wherein 1.0?a?1.2; 0.0<b?0.05; 0.30?x?0.90; 0.05?y?0.40; 0.05?z?0.50; x+y+z+b=1; M is one or two or more of Mg, Ti, Al, Zr, Y, Co, Mn, Ni, Ba and a rare earth element. A single ?-NaFeO2 type layered structure of the cathode material is shown by a powder X-ray diffraction pattern and full width at half maximum FWHM (110) of the (110) diffraction peak near a diffraction angle 2? of 64.9° is in the range of 0.073 to 0.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: March 29, 2022
    Assignee: Guizhou Zhenhua E-Chem Inc.
    Inventors: Chaoyi Zhou, Lijuan Wang, Zhu'an Yin, Daixiang Yang, Qianxin Xiang, Ming Mei, Peng Peng
  • Patent number: 11271210
    Abstract: A lithium battery cathode material comprises lithium transition metal-based material selected from lithium transition metal oxides and lithium transition metal phosphates, and crystalline silicon carbide residing at grain boundaries of the lithium transition metal-based material, forming conductive pathways along the grain boundaries, the crystalline silicon carbide being less than 10 wt. % of the cathode material.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: March 8, 2022
    Assignee: Apple Inc.
    Inventors: Mona Shirpour, Tetsuya Ishikawa, Sally S. Lou, Juchuan Li, Shawn William Snyder
  • Patent number: 11258055
    Abstract: The present invention relates to a cathode active material for a lithium secondary battery, and more particularly, to a cathode active material for a lithium secondary battery, which includes a core portion and a shell portion surrounding the core portion, in which a total content of cobalt in the core portion and the shell portion is 5 to 12 mol %, and the content of cobalt in the core portion and the shell portion is adjusted to be within a predetermined range. In the cathode active material precursor and the cathode active material for a secondary battery prepared using the same according to the present invention, optimal capacity of a lithium secondary battery may be increased by adjusting the cobalt content in the particles of the cathode active material, and life characteristics may be enhanced by improving stability.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: February 22, 2022
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Sung Jin Jang, Moon Ho Choi, Jun Won Suh, Jung Han Lee, Ji Hyun Nam, Seung Woo Choi
  • Patent number: 11251431
    Abstract: A high discharge capacity in an all-solid-state battery in which lithium vanadium phosphate is used in a positive electrode active material layer and a negative electrode active material layer. An all-solid-state battery wherein a positive electrode active material layer and a negative electrode active material layer contain lithium vanadium phosphate, which includes a Li- and V-containing polyphosphate compound and satisfies 1.50<Li/V?2.30, with the percentage of divalent V included in the V being 5˜80%. Thus, a high discharge capacity can be provided.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: February 15, 2022
    Assignee: TDK CORPORATION
    Inventor: Takeo Tsukada
  • Patent number: 11239457
    Abstract: According to one embodiment, provided is a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a spinel type lithium-manganese composite oxide and a lithium cobalt oxide, which satisfy formula (1): 0.01?B/(A+B)<0.05. The negative electrode includes a titanium-containing oxide. The nonaqueous electrolyte battery satisfies formula (2): 0.3?C/D 0.8. A is a weight ratio (wt %) of the spinel type lithium-manganese composite oxide. B is a weight ratio (wt %) of the lithium cobalt oxide. C is a pore specific surface area (m2/g) of the positive electrode. D is a pore specific surface area (m2/g) of the negative electrode.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: February 1, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Ryo Hara, Dai Yamamoto, Kazuhiro Namba
  • Patent number: 11217808
    Abstract: A raw material of an electrolyte solution that is to be dissolved in a solvent to form an electrolyte solution, and the raw material of an electrolyte solution is a raw material of an electrolyte solution that is a solid or semisolid that contains Ti in an amount of 2 mass % to 83 mass % inclusive, Mn in an amount of 3 mass % to 86 mass % inclusive, and S in an amount of 6 mass % to 91 mass % inclusive.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: January 4, 2022
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., TAYCA CORPORATION
    Inventors: Hirokazu Kaku, Ryouta Tatsumi, Tatsuya Tsurumura
  • Patent number: 11189823
    Abstract: The present invention provides a power battery and a positive electrode plate thereof. The positive electrode plate includes a positive current collector and a positive active material layer formed on the positive current collector. The positive active material layer contains a mixture of lithium iron phosphate and FeF3, or a mixture of lithium iron phosphate and LiFe2F6, or a mixture of lithium iron phosphate, FeF3 and LiFe2F6. FeF3 or LiFe2F6 has a high gram capacity of more than 200 mAh/g and has a charge and discharge interval close to that of lithium iron phosphate, which can improve the energy density and the safety performance of the power battery.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: November 30, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Ruifa Li, Xiaomei Liu, Guopeng Teng, Yonggang Xu, Bo Li
  • Patent number: 11158853
    Abstract: Provided are electrochemically active secondary particles that provide excellent capacity and improved cycle life. The particles are characterized by a plurality of nanocrystals with small average crystallite size. The reduced crystallite size reduces impedance generation during cycling thereby improving capacity and cycle life. Also provided are methods of forming electrochemically active materials, as well as electrodes and electrochemical cells employing the secondary particles.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 26, 2021
    Assignee: CAMX Power LLC
    Inventors: Adrian Pullen, Jane Rempel, Suresh Sriramulu, David Ofer
  • Patent number: 11152616
    Abstract: To provide a hydroxide precursor having a high density, a method for producing a lithium transition metal composite oxide using the precursor, a positive active material having a large discharge capacity per unit volume, which uses the composite oxide, an electrode for nonaqueous electrolyte secondary battery, and a nonaqueous electrolyte secondary battery. A method for producing a transition metal hydroxide precursor for use in production of a lithium transition metal composite oxide, including adding a solution containing a transition metal (Me) into a reaction tank in which a water solvent of dissolution of a complexing agent and a reducing agent has been charged in advance to coprecipitate a transition metal hydroxide that includes Mn and Ni, or Mn, Ni and Co, and has a mole ratio Mn/Me of larger than 0.5 and a mole ratio Co/Me of 0.15 or less.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: October 19, 2021
    Assignee: GS Yuasa International Ltd.
    Inventors: Daisuke Endo, Hiromasa Muramatsu
  • Patent number: 11152160
    Abstract: The high-rate hybrid supercapacitor (HSC) has a positive electrode made from copper oxide (CuO)-cobalt oxide (CoO) core-shell nanocactus-like heterostructures produced on a nickel foam substrate, a negative electrode made by coating nickel foam with graphene ink, and a separator of cellulose paper. The heterostructures each have a core of CuO nanoflakes and a shell of CoO nanoneedles extending from the nanoflakes. The HSC achieves a specific capacity of 173.9 mA h g?1 at 1 A g?1 and long cycle life with 94% retention over 5000 cycles at 4 A g?1, and also exhibits a stable operating voltage window of 1.6 V, energy density of 56.5 W h kg?1, and cycling stability of 98.8% retention with coulombic efficiency of 98.7% over 4000 cycles.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: October 19, 2021
    Assignee: UNITED ARAB EMIRATES UNIVERSITY
    Inventors: Ihab M. Obaidat, Hee-Je Kim, Chandu V. V. Muralee Gopi, Sambasivam Sangaraju
  • Patent number: 11145849
    Abstract: The invention relates to methods for producing Si/C composite particles, characterised in that mixtures containing silicon particles, one or more oxygen-free polymers, one or more carbon additives based on a carbon modification and one or more liquid dispersing agents are dried by spray drying and the pre-composite particles thus obtained are thermally treated.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 12, 2021
    Assignee: WACKER CHEMIE AG
    Inventors: Dennis Troegel, Jelena Pantelic-Seidl
  • Patent number: 11133524
    Abstract: The present invention relates to a negative electrode active material which includes a secondary particle including a first particle which is a primary particle, wherein the first particle includes a first core and a first surface layer which is disposed on a surface of the first core and contains carbon, and the first core includes a metal compound which includes one or more of a metal oxide and a metal silicate and one or more of silicon and a silicon compound; a method of preparing the same; an electrode including the same; and a lithium secondary battery including the same.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: September 28, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hyun Choi, Yong Ju Lee, Eun Kyung Kim
  • Patent number: 11127939
    Abstract: Electrode material, for a lithium-ion-based electrochemical cell, containing primary particles of a Mn-containing spinel-type metal oxide selected from the group consisting of spinel-type lithium-nickel-manganese-oxide, spinel-type lithium-manganese-oxide, and mixtures thereof. Mn of the Mn-containing spinel-type metal oxide is partially substituted with a substitution-element selected from the group consisting of Si, Hf, Zr, Fe, Al, V and mixtures thereof and the primary particles are aggregated in order to form secondary particles, with the secondary particles having the shape of a microsphere.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: September 21, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Kamelia Detig-Karlou, Ann-Christin Gentschev, Miriam Karin Keppeler, Sung-Jin Kim, Madhavi Srinivasan
  • Patent number: 11108044
    Abstract: A rechargeable lithium battery includes an electrolyte, a negative electrode, and a positive electrode. The negative electrode includes a negative active material layer on a negative current collector, and includes a carbon-based negative active material. The negative electrode having a Degree of Divergence (DD) value of about 19 to about 60. The positive electrode includes a positive active material layer and a positive current collector, and includes a positive active material and a porous structured additive. The content of the porous structured additive is about 0.01 wt % to about 2 wt % based on 100 wt % of the positive active material layer.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: August 31, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Junkyu Lee, Bokhyun Ka, Na-Ri Seo, Kyeuyoon Sheem, Jinhyon Lee, Eun-Hyung Choi
  • Patent number: 11101467
    Abstract: A metal-ion secondary battery is provided. The metal-ion secondary battery includes a positive electrode. The positive electrode includes at least one current-collecting layer and at least one active layer, wherein the current-collecting layer and the active layer are mutually stacked, and the current-collecting layer has at least one first through-hole.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 24, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chien-Chih Chiang, Kuang-Yao Chen, Chun-Hsing Wu, Chang-Chung Yang, Wen-Sheng Chang
  • Patent number: 11094933
    Abstract: Electrodes for rechargeable batteries that include silicon and a binder are provided. Binders for use with silicon electrodes are provided, including polysiloxane binders that can be prepared prior to preparation of the electrode, or provided as monomers to be cure-polymerized at the time of the curing of the electrode.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: August 17, 2021
    Assignee: University of Kentucky Research Foundation
    Inventors: Susan A. Odom, Darius A Shariaty, Yang-Tse Cheng
  • Patent number: 11088389
    Abstract: A lithium iron phosphate electrochemically active material for use in an electrode and methods and systems related thereto are disclosed. In one example, a lithium iron phosphate electrochemically active material for use in an electrode is provided including, a dopant comprising vanadium and optionally a co-dopant comprising cobalt.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: August 10, 2021
    Assignee: A123 SYSTEMS LLC
    Inventors: Chuanjing Xu, Maha Hammoud, Judith M. Laforest, Hyojin Lee, Derek Johnson
  • Patent number: 11063250
    Abstract: The present invention relates to a cathode active material composition for a lithium secondary battery and a lithium secondary battery including the same, and more particularly, to a cathode active material composition for a lithium secondary battery, including a mixture of particles which are different in Ni composition and size and prepared at the same heat treatment temperature, and a lithium secondary battery including the same. According to the present invention, optimal capacity manifestation temperatures of a coarse particle and a fine particle may be adjusted to be similar by adjusting an Ni content of the coarse particle and the fine particle, and thus, a lithium secondary battery having enhanced output and lifetime may be manufactured.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: July 13, 2021
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jun Won Suh, Jung Han Lee, Ji Hyun Nam, Sung Jin Jang, Seung Woo Choi
  • Patent number: 11040881
    Abstract: A method for preparing a Na3V2(PO4)2F3 material, including at least the steps: a) reducing the vanadium oxide, V2O5, under a reducing atmosphere in the absence of elementary carbon and in the presence of at least one phosphate anion precursor in order to form vanadium phosphate, VPO4; and b) exposing, under an inert atmosphere, a mixture of the VPO4 material obtained in step a) with an effective amount of sodium fluoride, NaF, and at least one hydrocarbon- and oxygen-containing compound which is a source of elementary carbon, to temperature conditions that are favourable for calcining said mixture so as to form said Na3V2(PO4)2F3 compound. Also, a related electrode material, an electrode and a secondary sodium battery using the presented material.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: June 22, 2021
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ETAUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE PICARDIE JULES VERNES
    Inventors: Nikita Hall, Sylvain Boulineau, Laurence Croguennec, Sébastien Launois, Christian Masquelier, Loïc Simonin
  • Patent number: 11038169
    Abstract: Provided are a cobalt oxide (Co3O4) for a lithium secondary battery, having an average particle diameter (D50) of about 14 ?m to about 19 ?m and a tap density of about 2.1 g/cc to about 2.9 g/cc, a method of preparing the cobalt oxide, a lithium cobalt oxide for a lithium secondary battery prepared from the cobalt oxide, and a lithium secondary battery including a cathode including the lithium cobalt oxide.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: June 15, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Junseok Park, Seonyoung Kwon, Youngki Kim, Jihyun Kim, Dohyung Park, Sooyoun Park
  • Patent number: 11031593
    Abstract: The present invention relates to a method of producing a cobalt-coated precursor, the cobalt-coated precursor produced by the method and a positive electrode active material for a lithium secondary battery, the positive electrode active material which is prepared using the cobalt-coated precursor and, more particularly, to a method of preparing a new positive electrode active material having improved high capacity and stability by coating cobalt on the surface of a precursor in the precursor step, thereby improving characteristics of the precursor degraded when washed with water, and a positive electrode active material prepared by the method.
    Type: Grant
    Filed: January 2, 2017
    Date of Patent: June 8, 2021
    Assignees: ECOPRO BM CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Moon Ho Choi, Jong Seung Shin, Hyun Jong Yu, Suk Yong Jeon, Eun Ok Oh, Sang Wook Lee, Yoon Young Choi
  • Patent number: 11024846
    Abstract: A high energy/power density, long cycle life and safe lithium ion cell capable of long-term deep discharge/storage near zero-volt is described. The cell utilizes a near zero-volt storage capable anode, such as a spinel Li4Ti5O12, coupled to a high voltage, high-energy and/or high-power density cathode, such as LiNi0.5Mn1.5O4. The near zero-volt storage cell is rechargeable and affords safety advantages for battery transportation, storage, and handling, and significant cost reductions for cell maintenance. The cells produce high-energy and/or high-power densities and long cycle life. The cell anode, cathode, and separator active materials are coated with one or more protection or stability enhancing and/or conductivity enhancing materials to enhance electrochemical performance and to strengthen stabilities for long-term cycle life and storage life.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 1, 2021
    Assignee: ADA Technologies, Inc.
    Inventor: Weibing Xing
  • Patent number: 11021367
    Abstract: Provided is a porous lithium composite phosphate-based compound containing lithium and having open pores formed in primary particles. As the open pores are formed in the primary particles themselves, a contact area between an electrolyte and the lithium composite phosphate-based compound is maximized, and low conductivity is compensated for, such that a diffusion rate of lithium ions is remarkably increased, and when the lithium composite phosphate-based compound is used as an active material of a secondary battery, the secondary battery may be charged and discharged at a high speed. Additionally, there are advantages in that an electrode density may be significantly increased in addition to the increase in the diffusion rate of the lithium ions, and charge and discharge cycle characteristics may be significantly stable.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: June 1, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Min Gu Kang, Seong Ho Lee, Jung In Yeon, Kook Hyun Han, Jung Hwan Kim
  • Patent number: 10953380
    Abstract: Provided is a process for manufacturing 2D inorganic compound platelets, the process comprising (a) preparing a first stock containing a 3D layered inorganic compound material dispersed in a liquid medium, (h) injecting the first stock into a continuous reactor having a vortex flow, (c) operating the continuous reactor to form a reaction product suspension containing 2D inorganic compound platelets dispersed in the liquid medium, and (d) separating and recovering said 2D inorganic compound platelets from said product suspension. The product suspension may be directed to flow back to the continuous director for further processing for at least another pass through the reactor, prior to step (d). The continuous reactor is preferably a Couette-Taylor reactor.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: March 23, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Yi-jun Lin, Hsuan-Wen Lee, Aruna Zhamu, Bor Z. Jang
  • Patent number: 10957910
    Abstract: The disclosure provides multi-functional cathode particulates for a lithium battery, wherein at least one of the particulates has a diameter from 100 nm to 50 ?m and comprises a conducting polymer network composite comprising one or a plurality of primary particles of a cathode active material that are partially or fully encapsulated by, embedded in, dispersed in, or bonded by an electrically and ionically conducting network of cross-linked polymer chains having a lithium ion conductivity from 10?8 to 5×10?2 S/cm and an electron conductivity from 10?8 to 103 S/cm, wherein the primary particles have a diameter or thickness from 0.5 nm to 20 ?m. Also provided is a method of producing such cathode particulates.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: March 23, 2021
    Assignee: Global Graphene Group, Inc.
    Inventor: Bor Z. Jang
  • Patent number: 10957840
    Abstract: An apparatus and method perform supersonic cold-spraying to deposit N and P-type thermoelectric semiconductor, and other polycrystalline materials on other materials of varying complex shapes. The process developed has been demonstrated for bismuth and antimony telluride formulations as well as Tetrahedrite type copper sulfosalt materials. Both thick and thin layer thermoelectric semiconductor material is deposited over small or large areas to flat and highly complex shaped surfaces and will therefore help create a far greater application set for thermoelectric generator (TEG) systems. This process when combined with other manufacturing processes allows the total additive manufacturing of complete thermoelectric generator based waste heat recovery systems. The processes also directly apply to both thermoelectric cooler (TEC) systems, thermopile devices, and other polycrystalline functional material applications.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 23, 2021
    Inventor: Richard C Thuss
  • Patent number: 10930921
    Abstract: Provided are a negative active material, an anode and a lithium secondary battery including the same, and a method of preparing the negative active material. The negative active material includes a silicon alloy core including silicon, iron, and manganese, and a shell including a metal oxide on the silicon alloy core, the metal oxide including one or more of titanium, zirconium, aluminum, cobalt, or lithium. An amount of the metal oxide may be from greater than 0 wt % to less than about 12 wt % based on a total weight of the negative active material.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 23, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jaehyuk Kim, Soonsung Seo, Hana Yoo, Heeyoung Chu, Deokhyun Kim, Yungu Cho
  • Patent number: 10923767
    Abstract: An organic electrolyte solution and a lithium battery, the organic electrolyte solution including an organic solvent; a lithium salt; a first compound, the first compound being represented by Formula 1 or Formula 2; and a second compound, the second compound being a succinonitrile-based compound represented by Formula 3:
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: February 16, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: AeRan Kim, MiYoung Son, HyunBong Choi, MyungHeui Woo, SeungTae Lee, HaRim Lee, AeHui Goh, WooCheol Shin
  • Patent number: 10916772
    Abstract: A positive electrode active material for a sodium ion battery includes a sodium complex oxide of the formula Na4(M1aM21?a)2O5 having an orthorhombic crystal structure, wherein M1 and M2 are each independently Ti, Cr, Fe, Co, Ni, Mn, V, or a combination there of provided that M1 and M2 are different from each other; and 0?a?1.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: February 9, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Masoud Aryanpour, Young-Gyoon Ryu, Yan Wang