Having Utility As A Reactive Material In An Electrochemical Cell; E.g., Battery, Etc. Patents (Class 252/182.1)
  • Patent number: 11909039
    Abstract: The nickel-containing composite hydroxide disclosed herein contain secondary particles, which are formed from an aggregation of numerous primary particles, which have an average particle size of the primary particles is 0.01 ?m to 0.40 ?m. These secondary particles have a spherical or ellipsoidal shape, an average particle size of 20 ?m to 50 ?m, and a BET value of 12 m2/g to 50 m2/g after being roasted in air for 2 hours at 800° C.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: February 20, 2024
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Kazuomi Ryoshi, Kensaku Mori, Katsuya Kase, Yasutaka Kamata
  • Patent number: 11894547
    Abstract: An engineered particle for an energy storage device, the engineered particle includes an active material particle, capable of storing alkali ions, comprising an outer surface, a conductive coating disposed on the outer surface of the active material particle, the conductive coating comprising a MxAlySizOw film; and at least one carbon particle disposed within the conductive coating. For the MxAlySizOw film, M is an alkali selected from the group consisting of Na and Li, and 1?x?4, 0?y?1, 1?z?2, and 3?w?6.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: February 6, 2024
    Assignees: ULVAC TECHNOLOGIES, INC., SISOM THIN FILMS LLC
    Inventors: Isaiah O. Oladeji, Akiyoshi Suzuki, Koukou Suu
  • Patent number: 11894555
    Abstract: A positive electrode active material for a lithium ion secondary battery containing lithium nickel manganese complex oxide particles, wherein the lithium nickel manganese complex oxide particles are composed of secondary particles in which primary particles of a lithium nickel manganese complex oxide represented by a general formula LidNi1?a?b?cMnaMbZrcO2+? (where M is at least one element selected from Co, W, Mo, Mg, Ca, Al, Ti, Cr, and Ta, and is 0.05?a<0.60, 0?b<0.60, 0.00003?c?0.03, 0.05?a+b+c?0.60, 0.95?d?1.20, and ?0.2???0.2), wherein at least a portion of zirconium is dispersed in the primary particle, and wherein an amount of a positive active material for a lithium ion secondary battery in which an amount of excessive lithium determined by a neutralization titration method is 0.02 mass % or more and 0.09 mass % or less.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: February 6, 2024
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Takuma Nakamura, Haruki Kaneda, Yuki Koshika
  • Patent number: 11894551
    Abstract: A main object of the present disclosure is to provide an active material wherein a volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material comprising at least Si and Al, including a silicon clathrate type crystal phase, and a proportion of the Al to a total of the Si and the Al is 0.1 atm % or more and 1 atm % or less.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: February 6, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhiro Suzuki, Jun Yoshida
  • Patent number: 11888150
    Abstract: A positive electrode plate includes a positive electrode current collector, a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and a conductive undercoat layer positioned between the positive electrode current collector and the positive electrode film layer. The positive electrode film layer includes a positive electrode active material including an inner core and a shell coating the inner core. The shell includes a first coating layer coating the inner core, a second coating layer coating the first coating layer, and a third coating layer coating the second coating layer. The conductive undercoat layer includes a polymer, an aqueous binder, and a conductive agent.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: January 30, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Huihui Liu, Lingyun Feng, Yanhuang Fan, Lianwei Duan
  • Patent number: 11888102
    Abstract: In a method of manufacturing a cathode active material for a lithium secondary battery, a preliminary lithium metal oxide particle is prepared. The preliminary lithium metal oxide particle is cleaned using a boron compound cleaning solution. A cathode active material for a lithium secondary particle includes a lithium metal oxide particle where a ratio of a B+ peak intensity relative to a sum of peak intensities of Li+, B+ and LiB+ fragments by a TOF-SIMS analysis is in a range from 0.03% to 1.5%.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: January 30, 2024
    Assignee: SK On Co., Ltd.
    Inventors: Sang Bok Kim, Ji Hoon Choi, Jik Soo Kim, Mi Jung Noh, Dong Il Jang, Dong Wook Ha
  • Patent number: 11873234
    Abstract: A positive electrode active material precursor for a non-aqueous electrolyte secondary battery, including a nickel composite hydroxide particle, is provided, wherein a cross section of the nickel composite hydroxide particle includes a void, a ratio of an area of the void to the cross section of the nickel composite hydroxide particle is less than or equal to 5.0%, a circular region having a radius of 1.78 ?m is set at a position where a ratio of an area of the void to the circular region is maximum, on the cross section of the nickel composite hydroxide particle, and the ratio of the area of the void to the circular region is less than or equal to 20%.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: January 16, 2024
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Kentaro Sogabe, Kenji Tashiro
  • Patent number: 11876194
    Abstract: Embodiments described herein relate generally to methods for the remediation of electrochemical cell electrodes. In some embodiments, a method includes obtaining an electrode material. At least a portion of the electrode material is rinsed to remove a residue therefrom. The electrode material is separated into constituents for reuse.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: January 16, 2024
    Assignee: 24M Technologies, Inc.
    Inventors: Yet-Ming Chiang, William Henry Woodford, Hiuling Zoe Yu
  • Patent number: 11862394
    Abstract: An electrochemical capacitor (300) for use with a biofilm is presented. The electrochemical capacitor includes a first electrode (324) coupled to a first porous layer (326), a second electrode (334) coupled to a second porous layer (336); and an electrolyte (310) provided between the first porous layer (326) and the second porous layer (336). At least one of the first porous layer (326) and the second porous layer (336) has a plurality of cavities adapted to receive redox-active metabolites produced by the biofilm. Also presented is an electrochemical capacitor device, such as a skin patch that includes a support layer attached to the electrochemical capacitor (300). Also presented is a power source that includes the electrochemical capacitor (300) and a biofilm provided between the first electrode (324) and the second electrode (334) of the electrochemical capacitor (300).
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: January 2, 2024
    Assignee: DURHAM UNIVERSITY
    Inventors: Ritu Kataky, Karl Coleman, Gary Sharples
  • Patent number: 11831018
    Abstract: Provided is a binder composition for a non-aqueous secondary battery electrode that can form an electrode that has excellent peel strength and for which metal deposition at the surface thereof after charging and discharging is inhibited. The binder composition contains a polymer A and a polymer B. The polymer A has a THF-insoluble content of 60 mass % or less and the polymer B has a THF-insoluble content of 80 mass % or more.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: November 28, 2023
    Assignee: ZEON CORPORATION
    Inventors: Naoki Takahashi, Norikazu Yamamoto
  • Patent number: 11824196
    Abstract: A negative electrode slurry includes a negative active material including a first active material in an amount of greater than or equal to about 5 wt % and less than or equal to about 100 wt %, a binder for binding the negative active material, and a solvent for dispersing the negative active material and the binder in the negative electrode slurry, wherein the first active material contains silicon atoms in an amount of greater than or equal to about 20 wt % and less than or equal to about 100 wt %, the binder includes a particulate dispersed body and a water-soluble polymer containing an acrylic acid-acrylonitrile-based copolymer, and when a sum of an amount of the negative active material and an amount of the binder is 100 wt %, an amount of the water-soluble polymer is greater than or equal to about 0.5 wt % and less than or equal to about 2 wt %.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: November 21, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tomoyuki Fukatani, Koji Hoshiba
  • Patent number: 11824198
    Abstract: A porous silicon composite includes: a porous core including a porous silicon composite secondary particle; and a shell disposed on a surface of the porous core and surrounding the porous core, wherein the porous silicon composite secondary particle includes an aggregate of silicon composite primary particles, each including silicon, a silicon suboxide on a surface of the silicon, and a first graphene on a surface of the silicon suboxide, wherein the shell include a second graphene, and at least one of the first graphene and the second graphene includes at least one element selected from nitrogen, phosphorus, and sulfur.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 21, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Inhyuk Son, Mijong Kim, Jumyeung Lee, Minwoo Lim, Junghyun Choi, Sungsoo Han
  • Patent number: 11807698
    Abstract: Provided is a binder for non-aqueous secondary battery porous membrane-use that enables formation of a porous membrane having excellent durability and that can improve stability under high shear of a composition for porous membrane-use. The binder for non-aqueous secondary battery porous membrane-use includes a particulate polymer. The particulate polymer is a random copolymer including at least 35 mass % of an alkyl (meth)acrylate monomer unit and at least 20 mass % and no greater than 65 mass % of an aromatic monovinyl monomer unit. A degree of swelling of the particulate polymer with respect to a non-aqueous electrolysis solution is greater than a factor of 1 and no greater than a factor of 2.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: November 7, 2023
    Assignee: ZEON CORPORATION
    Inventor: Tomokazu Sasaki
  • Patent number: 11804589
    Abstract: A main object of the present disclosure is to provide an all solid state battery with excellent capacity durability when restraining pressure is not applied or even when low restraining pressure is applied thereto. The present disclosure achieves the object by providing an all solid state battery comprising layers in the order of a cathode layer, a solid electrolyte layer, and an anode layer; wherein the anode layer contains an anode active material including a silicon clathrate II type crystal phase; restraining pressure of 0 MPa or more and less than 5 MPa is applied to the all solid state battery in a layering direction; and a specific surface area of the anode active material is 8 m2/g or more and 17 m2/g or less.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: October 31, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mitsutoshi Otaki, Jun Yoshida
  • Patent number: 11799072
    Abstract: An anode active material for a secondary battery, which has improved cycle swelling properties and rapid charge performance, an anode comprising an anode active material for a secondary battery, and a method for manufacturing same. The anode active material is a mixture of scaly natural graphite and spherical natural graphite. An average particle diameter (D50) of the scaly natural graphite is 10 ?m to 15 ?m and an average particle diameter (D50) of the spherical natural graphite is 14 ?m or less.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: October 24, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hee Won Choi, Je Young Kim, Sang Wook Woo, Li Lin Piao
  • Patent number: 11799081
    Abstract: A positive electrode material including a first positive electrode active material represented by Formula 1 and a second positive electrode active material represented by Formula 2, a positive electrode including the same, and a lithium secondary battery including the positive electrode are provided. The positive electrode material has a bimodal particle size distribution including large diameter particles and small diameter particles, and the difference in average particle diameter (D50) between the large diameter particles and the small diameter particles is 3 ?m or greater.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 24, 2023
    Inventors: Dong Hun Lee, Wang Mo Jung, Sung Bin Park, Ji Hye Kim, Dong Hwi Kim, Hyung Man Cho, Jung Min Han
  • Patent number: 11786877
    Abstract: In the hydrochlorination reaction, silicon tetrachloride (STC), metallurgical silicon, and hydrogen are converted to trichlorosilane (TCS) at about 540° C. Previously, a pilot-scale reactor was used to study the yield of TCS produced by the hydrochlorination reaction. The yield observed by experimentation compared favorably with a scalable mathematical model developed to predict the rate of TCS conversion. The model predicted that 90% of the final amount of TCS produced was achieved after the reactant gas traveled a quarter of the vertical distance in the reaction section of the reactor. The pilot-scale reactor was shortened to verify the model predictions. In addition, some catalytic effects on the reaction were studied.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: October 17, 2023
    Assignees: Mitsubishi Polycrystalline Silicon America Corporation (MIPSA), HIGH-PURITY SILICON CORPORATION
    Inventors: Matthias A. Colomb, Bryan H. Nettles
  • Patent number: 11784309
    Abstract: A lithium cobalt metal oxide powder is disclosed in the present disclosure. The lithium cobalt metal oxide powder has a coating structure. The lithium cobalt metal oxide powder includes a lithium cobalt metal oxide matrix. The lithium cobalt metal oxide powder further includes a Co3O4 coating layer. A general formula of the lithium cobalt metal oxide powder is LiaCo1-x-yMxNyO2·rCo3O4, wherein 0.002<r?0.05, 1?a?1.1, 0<x?0.02, 0?y?0.005, and a<1+3r; M is a doping element; and N is a coating element. A method for making the lithium cobalt metal oxide powder as described above and a method for determining a content of Co3O4 therein are further provided. The material made in the present disclosure has an excellent electrochemical performance.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: October 10, 2023
    Assignee: BASF SHANSHAN BATTERY MATERIALS CO., LTD.
    Inventors: Yongchang Li, Hong Dong, Xuyao Hu, Hui Shi, Shuang Chen, Xiangkang Jiang, Xu Li, Zhihua Li
  • Patent number: 11777099
    Abstract: A storage device having excellent cycle lifetime, an electrode used in this storage device, and a production method of the electrode are provided. An electrode comprising an active material and a conductive carbon including oxidized carbon. A surface of the active material is covered by the conductive carbon. A Raman spectrum of the active material covered by the conductive carbon includes a peak intensity (a) derived from the active material and a peak intensity (b) of D-band derived from the conductive carbon. A peak intensity ratio (b)/(a) between the peak intensity (a) and the peak intensity (b) is 0.25 or more.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: October 3, 2023
    Assignee: NIPPON CHEMI-CON CORPORATION
    Inventors: Satoshi Kubota, Shuichi Ishimoto
  • Patent number: 11757091
    Abstract: A method for preparing a sulfur-carbon composite including the steps of: (a) mixing a carbon-based material with sulfur or a sulfur compound; (b) placing the sulfur-carbon mixture mixed in step (a) and a liquid which is vaporizable into a sealable container; and (c) heating the sealed container to a temperature of 120 to 200° C.; a positive electrode for a lithium secondary battery including the sulfur-carbon composite prepared by the above method, and a lithium secondary battery including the above positive electrode.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: September 12, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Eunkyung Cho, Kwonnam Sohn
  • Patent number: 11742491
    Abstract: A binder for a secondary battery containing a fluorine-containing polymer (A) and polyvinylidene fluoride (B). The fluorine-containing polymer (A) contains a polymerized unit based on vinylidene fluoride, a polymerized unit based on tetrafluoroethylene, and a polymerized unit based on a monomer (2-2) represented by the following formula (2-2): wherein R5, R6, and R7 are each independently a hydrogen atom or a C1-C8 hydrocarbon group; R8 is a C1-C8 hydrocarbon group; and Y1 is an inorganic cation or an organic cation. Also disclosed is an electrode mixture and an electrode for a secondary battery including the binder, and a secondary battery including the electrode.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 29, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuki Hosoda, Takahiro Kitahara, Manabu Fujisawa, Takashi Iguchi, Kazuya Asano, Chihiro Shinoda
  • Patent number: 11735716
    Abstract: A battery electrode composition is provided that comprises composite particles. Each composite particle may comprise, for example, active fluoride material and a nanoporous, electrically-conductive scaffolding matrix within which the active fluoride material is disposed. The active fluoride material is provided to store and release ions during battery operation. The storing and releasing of the ions may cause a substantial change in volume of the active material. The scaffolding matrix structurally supports the active material, electrically interconnects the active material, and accommodates the changes in volume of the active material.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: August 22, 2023
    Assignee: SILA NANOTECHNOLOGIES, INC.
    Inventors: Gleb Yushin, Bogdan Zdyrko, Alexander Jacobs, Eugene Berdichevsky
  • Patent number: 11728467
    Abstract: A major object is to provide a method of producing a cathode active material having a high average discharge potential, and a high degree of stability at high potential. The method includes: a step of preparing a Na-doped precursor of making a sodium-containing transition metal oxide having the P2 structure belonging to a space group of P63/mmc; and an ion exchange step of substituting lithium for at least part of sodium contained in the sodium-containing transition metal oxide by the ion exchange method, wherein in the ion exchange step, at least lithium iodide is used as a Li ion source.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: August 15, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Issei Sugiyama
  • Patent number: 11728469
    Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: August 15, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Teppei Oguni, Takuya Miwa
  • Patent number: 11715825
    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: February 8, 2022
    Date of Patent: August 1, 2023
    Assignee: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Gleb Yushin, Oleksandr Magazynskyy, Patrick Dixon, Benjamin Hertzberg
  • Patent number: 11688852
    Abstract: A new silicon material is provided. A negative electrode active material including an Al- and O-containing silicon material, the Al- and O-containing silicon material being configured such that a mass % of Al (WAl %) satisfies 0<WAl<1, and a peak indicating Al—O bond is observed in a range of 1565 to 1570 eV in an X-ray absorption fine structure measurement for a K shell of Al.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: June 27, 2023
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Yasuhiro Yamaguchi
  • Patent number: 11664490
    Abstract: A positive electrode (21) includes a positive electrode current collector (21A), and a positive electrode mixture layer (21B) which is formed on the positive electrode current collector (21A) and contains a positive electrode active material. The positive electrode mixture layer (21B) includes a first positive electrode active material (21B-1) composed of LiVPO4F and a second positive electrode active material (21B-2) composed of LiVP2O7. In addition, a mixing ratio of the first positive electrode active material (21B-1) and the second positive electrode active material (21B-2) contained in the positive electrode mixture layer (21B) is represented by (1?x)LiVPO4F+xLiVP2O7 (x is a mass ratio, 0<x?0.21).
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: May 30, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kazuhiro Araki, Taku Matsuzaka
  • Patent number: 11652207
    Abstract: An LFP electrode material is provided which has improved impedance, power during cold cranking, rate capacity retention, charge transfer resistance over the current LFP based cathode materials. The electrode material comprises crystalline primary particles and secondary particles, where the primary particle is formed from a plate-shaped single-phase spheniscidite precursor and a lithium source. The LFP includes an LFP phase behavior where the LFP phase behavior includes an extended solid-solution range.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: May 16, 2023
    Assignee: A123 Systems LLC
    Inventors: Larry Beck, Jennifer Wilson, Chuanjing Xu, Zhong-You Shi, Maha Hammoud
  • Patent number: 11623866
    Abstract: A method encapsulates nanoscale material by producing a suspension of the nanostructure material in a first solvent using a micelle surrounding the nanostructure material. The micelle surrounding the suspended nanostructure material is swollen by adding to and mixing with the suspension an immiscible phase second solvent containing a precursor. The precursor is then reduced by adding a reducing reactant selectively soluble in the first solvent that reacts to the precursor containing reactant selectively solvated in the second solvent to encapsulate the nanostructure material. A metal-nanostructure composite can be provided by collecting and mixing the metal-shell encapsulated nanostructure product produced by the aforementioned method into a metal matrix.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: April 11, 2023
    Assignee: Mainstream Engineering Corporation
    Inventors: Gregory E. Chester, Anna P. Skinner, Justin J. Hill
  • Patent number: 11621423
    Abstract: The present disclosure relates to a cathode additive of a lithium secondary battery, and a method for preparing the same. The cathode additive exhibits high irreversible capacity, and may be effectively applied to a battery using an anode material having high energy density.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: April 4, 2023
    Inventors: Hyelim Jeon, Donghun Lee, Sang Wook Lee, Eunsol Lho, Wang Mo Jung, Minsuk Kang, Sora Baek
  • Patent number: 11611103
    Abstract: A solid ion conductor compound includes a compound represented by Formula 1: Li6?wHf2?xMxO7?yZy??Formula 1 where, in Formula 1, M is an element having an oxidation number of a and a is 5, 6, or a combination thereof, Z is an element having an oxidation number of ?1, and 0<x<2, 0?y?2, and 0<w<6 and w=[(a?4)×x]+y.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: March 21, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ryounghee Kim, Yan Wang, Lincoln Miara, Hyeokjo Gwon, Sewon Kim, Jusik Kim, Sungkyun Jung
  • Patent number: 11611072
    Abstract: Alkaline electrochemical cells are provided, containing cathodes with a nickel compound active material, wherein active material particles are coated with at least one of a number of materials so as to improve the shelf life of the electrochemical cell. Methods of preparing such cathodes and electrochemical cells are also provided.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: March 21, 2023
    Assignee: Energizer Brands, LLC
    Inventors: Guanghong Zheng, Weiwei Huang
  • Patent number: 11611063
    Abstract: Provided herein is a method for preparing a cathode based on an aqueous slurry. The cathode slurry comprises a cathode active material, especially a nickel-containing cathode active material, with improved stability in water. Pre-treatment of nickel-containing cathode active materials may improve stability of the cathode by preventing undesirable decomposition of the material. In addition, battery cells comprising the cathode prepared by the method disclosed herein exhibit impressive electrochemical performances.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 21, 2023
    Assignee: GRST International Limited
    Inventors: Kam Piu Ho, Yingkai Jiang
  • Patent number: 11611067
    Abstract: A sulfur-carbon composite and a lithium-sulfur battery including the same, and in particular, to a sulfur-carbon composite including a porous carbon material; a polymer having electrolyte liquid loading capacity; and sulfur. The porous carbon material may be coated with the polymer having electrolyte liquid loading capacity and the coated porous carbon material then mixed with the sulfur. By introducing a coating layer including the polymer having electrolyte liquid loading capacity to a surface of the porous carbon material, it is possible to improve reactivity of the sulfur and an electrolyte liquid and thereby enhance performance and lifetime properties of the lithium-sulfur battery.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: March 21, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Eunkyung Cho, Dongwook Koh, Kwonnam Sohn, Doo Kyung Yang
  • Patent number: 11611076
    Abstract: The present invention provides a positive electrode active material precursor for a secondary battery which includes primary particles of Co3O4 or CoOOH, wherein the primary particle contains a doping element in an amount of 3,000 ppm or more, and has an average particle diameter (D50) of 15 ?m or more, and a positive electrode active material for a secondary battery which includes particles of a lithium cobalt-based oxide, wherein the primary particle contains a doping element in an amount of 2,500 ppm or more, and has an average particle diameter (D50) of 15 ?m or more.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: March 21, 2023
    Inventors: Min Kyu You, Chi Ho Jo, Sung Bin Park, Hyuck Hur, Jin Tae Hwang, Wang Mo Jung
  • Patent number: 11594737
    Abstract: A membrane-electrode assembly including a catalyst layer that includes a catalyst-supporting carrier in which a catalyst is supported on a carrier made of an inorganic oxide, and a highly hydrophobic substance having a higher degree of hydrophobicity than the inorganic oxide, the catalyst layer being formed on at least one surface of a polymer electrolyte membrane. It is preferable that, in the membrane-electrode assembly, the degree of hydrophobicity of the highly hydrophobic substance is from 0.5 vol % to 45 vol % at 25° C., the degree of hydrophobicity being defined as a concentration of methanol (vol %) when a light transmittance of a dispersion obtained by dispersing the highly hydrophobic substance in a mixed solution of water and methanol reaches 80%.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: February 28, 2023
    Assignees: MITSUI MINING & SMELTING CO., LTD., UNIVERSITY OF YAMANASHI
    Inventors: Koji Taniguchi, Masahiro Watanabe, Makoto Uchida, Katsuyoshi Kakinuma
  • Patent number: 11588151
    Abstract: A multilayer anode includes an anode collector, and a plurality of anode mixture layers sequentially stacked on at least one surface of the anode collector, and including natural graphite as an anode active material. A weight ratio of the natural graphite in innermost and outermost anode mixture layers is greater than a weight ratio of the natural graphite in an anode mixture layer located between the innermost and outermost anode mixture layers, in a stacking direction of the plurality of anode mixture layers. Performance of a cell may be improved and calendering-calender contamination occurring in a calendering process and an electrode stripping phenomenon may be prevented.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: February 21, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Byoung Wook Jo, Jae Kyu Jin
  • Patent number: 11588154
    Abstract: The present invention relates to a positive electrode active material having improved electrical characteristics by adjusting an aspect ratio gradient of primary particles included in a secondary particle, a positive electrode including the positive electrode active material, and a lithium secondary battery using the positive electrode.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: February 21, 2023
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Seung Woo Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Gwang Seok Choe, Joong Ho Bae, Du Yeol Kim
  • Patent number: 11569504
    Abstract: The production method is a method for producing a positive electrode active material for a lithium ion secondary battery which contains at least nickel and lithium, the method including: a firing process in which a mixture of a nickel compound powder and a lithium compound powder is fired; and a water washing process in which a lithium-nickel composite oxide powder obtained in the firing process is washed with water, wherein the firing process is performed under conditions such that a value obtained by dividing a ratio of an amount-of-substance of lithium to a total amount-of-substance of transition metals other than lithium in the lithium-nickel composite oxide powder after the washing with water by a ratio of an amount-of-substance of lithium to a total amount-of-substance of transition metals other than lithium in the lithium-nickel composite oxide powder before the washing with water exceeds 0.95.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: January 31, 2023
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Yasutaka Kamata, Yuji Kawakami, Tomomichi Nihei
  • Patent number: 11569497
    Abstract: The invention relates to a process for the preparation of a vanadium-carbon phosphate composite material, a vanadium-carbon phosphate composite material obtained according to the process, and to the uses of the composite material, especially as a precursor for the synthesis of electrochemically-active materials, electrode or active anode material.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: January 31, 2023
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE PICARDIE JULES VERNE
    Inventors: Rénald David, Christine Surcin, Mathieu Morcrette
  • Patent number: 11555094
    Abstract: The present invention relates to a method for stabilizing aqueous dispersions, notably of polymers based on vinylidene fluoride (VDF), and to the use of the stabilized aqueous dispersion thus obtained in electrochemical applications.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 17, 2023
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Serena Carella, Eliana Ieva, Mirko Mazzola, Giulio Brinati
  • Patent number: 11552323
    Abstract: A biofuel cell includes a cathode, an anode, and a microbial community. At least one of the anode and the cathode contains a biochar prepared from a Trapa natans husk as an electrode material, and the anode is located in the microbial community. By using the biochar prepared from the Trapa natans husk as the electrode material, not only can the power density of the biofuel cell be increased, but the economic benefits of waste recycling can also be achieved.
    Type: Grant
    Filed: December 25, 2020
    Date of Patent: January 10, 2023
    Assignee: National Tsing Hua University
    Inventors: Fang-Yi Lin, Yao-Yu Lin, Chia-Chieh Hsu, Han-Yi Chen, Tzu-Yin Liu
  • Patent number: 11545668
    Abstract: A method for producing an electrode material for a lithium-ion secondary battery. The method includes the following steps: (a) mixing components of a basic ingredient or active substance of electrode material and a conductive carbon material to obtain a conductive carbon material-composited material; (b) mixing the conductive carbon material-composited material and a surface layer-forming material; an (c) burning the mixture obtained at step (b) to obtain the electrode material. Also, a lithium-ion secondary battery including an electrode which comprises the material.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: January 3, 2023
    Assignee: HYDRO-QUEBEC
    Inventors: Vincent Gariepy, Abdelbast Guerfi, Kazuma Hanai, Pierre Hovington, Shinji Saito, Takehiko Sawai, Kazunori Urao, Karim Zaghib
  • 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: 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: 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: 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: 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