Iron Component Is Active Material Patents (Class 429/221)
  • Patent number: 11316148
    Abstract: In an embodiment, an active material-based nanocomposite is synthesized by infiltrating an active material precursor into pores of a nanoporous carbon, metal or metal oxide material, and then annealing to decompose the active material precursor into a first gaseous material and an active material and/or another active material precursor infiltrated inside the pores. The nanocomposite is then exposed to a gaseous material or a liquid material to at least partially convert the active material and/or the second active material precursor into active material particles that are infiltrated inside the pores and/or to infiltrate a secondary material into the pores. The nanocomposite is again annealed to remove volatile residues, to enhance electrical contact within the active material-based nanocomposite composite and/or to enhance one or more structural properties of the nanocomposite. In a further embodiment, the pores may be further infiltrated with a filler material and/or may be at least partially sealed.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: April 26, 2022
    Assignees: SILA NANOTECHNOLOGIES, INC., GEORGIA TECH RESEARCH CORPORATION
    Inventors: Gleb Yushin, Danni Lei
  • Patent number: 11296353
    Abstract: A method is provided for producing a solid state electrolyte for a lithium ion battery. The method includes the following steps: i) providing a layer of a solid state electrolyte; and ii) coating at least one first surface of the layer of the solid state electrolyte with a first coating, which has an electrochemical stability at potentials of ?1 to 5 V measured against Li/Li+.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: April 5, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Byron Konstantinos Antonopoulos
  • Patent number: 11286568
    Abstract: A film forming treatment agent for a composite chemical conversion film for magnesium alloy, and a film forming process method, and a composite chemical conversion film are provided. Components of the film forming treatment agent for a composite chemical conversion film for magnesium alloy comprise a water solution and a suspension of reduced graphene oxide flakes to the water solution. The water solution comprises strontium ions at 0.1 mol/L to 2.5 mol/L and phosphate ions at 0.06 mol/L to 1.5 mol/L, and pH of the water solution is 1.5 to 4.5. Concentration of the reduced graphene oxide varies between 0.1 mg/L and 5 mg/L. The film forming process method for a composite chemical conversion film for magnesium alloy comprises the following steps of: 1) pretreatment on surface of magnesium alloy matrix; 2) immersion of magnesium alloy matrix in the film forming treatment agent; and 3) removal of magnesium alloy pieces for drying in air.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: March 29, 2022
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Shiwei Xu, Weineng Tang, Xiaobo Chen, Cong Ke, Nick Birbilis, Haomin Jiang, Pijun Zhang
  • Patent number: 11286166
    Abstract: The present invention provides a safe and highly efficient method for producing graphite oxide. The present invention relates to a method for producing graphite oxide by oxidizing graphite, the method including the step of oxidizing graphite by adding a permanganate to a liquid mixture containing graphite and sulfuric acid while maintaining the concentration of heptavalent manganese at 1% by mass or less in 100% by mass of the liquid mixture.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: March 29, 2022
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hironobu Ono, Osamu Konosu, Shin-ichi Okuoka, Syun Gohda, Shusuke Kamata, Yuichi Sato, Yuta Nishina
  • Patent number: 11258060
    Abstract: This application provides a negative electrode plate, a secondary battery, a battery module, a battery pack, and an apparatus. The negative electrode plate includes a negative current collector and a plurality of active substance layers formed on the negative current collector, where the plurality of active substance layers include at least a first active substance layer and a second active substance layer; the first active substance layer includes a first negative active substance, and the second active substance layer includes a second negative active substance; a ratio of thickness of the negative active substance of the first active substance layer to average particle size of the first negative active substance is 2.0 to 4.0; and a ratio of thickness of the second active substance layer to average particle size of the second negative active substance is 2.2 to 5.0.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: February 22, 2022
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Jianjun Ma, Libing He
  • Patent number: 11258068
    Abstract: A positive electrode for a lithium battery includes a lithium salt, a carbonaceous material, and a coating on a surface of the carbonaceous material, the coating including a polymer electrolyte including a hydrophilic material and a hydrophobic material, wherein a portion of the polymer electrolyte is anchored to the surface of the carbonaceous material by a chemical bond.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunpyo Lee, Taeyoung Kim, Dongjoon Lee, Heungchan Lee, Dongmin Im, Wonsung Choi
  • Patent number: 11258062
    Abstract: A process for preparing a cathode material of the form LiaMn1-x-y-zFexCoyNizO2-dCld is provided. In addition, a LiaMn1-x-y-zFexCoyNizO2-dCld cathode material for electrochemical systems is provided. Furthermore, a lithium or lithium-ion rechargeable electrochemical cell is provided, incorporating the LiaMn1-x-y-zFexCoyNizO2-dCld cathode material in a positive electrode.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: February 22, 2022
    Assignee: The Government of the United States, as represented by the Secretary of the Army
    Inventors: Terrill B. Atwater, Matthew A. Limpert, Ashley L. Ruth, Paula C. Latorre
  • Patent number: 11251419
    Abstract: Aspects of the invention are based on the discovery that cathode materials and lithium ion batteries comprising the cathode material, having improved thermal stability may be produced from a cathode material that is comprised of a mixture of a lithium metal oxide and a lithium metal phosphate wherein the lithium metal phosphate comprises a volume fraction of secondary particles having a size of 0.1 to 3 ?m that is from 5 to 100%, based on the total content of lithium metal phosphate. More specifically cathodes comprising lithium metal phosphates having the recited secondary particle ranges help provide cathode materials that are capable of passing the nail penetration test without generating smoke or flames. Methods of forming the cathode and lithium ion battery comprising the cathode are also provided.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: February 15, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Maeda Hideaki, Daojin Hang, Xiangyang Tai, Jing Jin, Chunhua Huang
  • Patent number: 11245153
    Abstract: The present invention relates to a battery housing for an electrically powered vehicle, in particular a motor vehicle, comprising a battery accommodation space made of a first flat steel product and a housing frame made of a second flat steel product, where the two flat steel products differ in terms of at least one of the properties yield strength (Rp0.2), tensile strength (RM) or elongation (A50).
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: February 8, 2022
    Assignee: thyssenkrupp AG
    Inventors: Martin Kibben, Erik Hilfrich, Matthias Schirmer
  • Patent number: 11233236
    Abstract: The present invention relates to an electrode active material for a sodium secondary battery, including: a composite metal oxide, in which the composite metal oxide is represented by Formula (1), and in a case where a peak intensity of a (200) plane of nickel oxide which is observed in the vicinity of 43° of a powder X-ray diffraction spectrum is set as I, and a peak intensity of a (104) plane of the composite metal oxide represented by Formula (1) which is observed in the vicinity of 41° to 42.5° is set as I0, I/I0 obtained by dividing I by I0 is 0.2 or less.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 25, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kiwamu Tonosaki, Takuya Matsunaga
  • Patent number: 11233230
    Abstract: Systems and methods for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and pyrolyzed water-soluble acidic polyamide imide as a primary resin carbon precursor. The electrode coating layer may include a pyrolyzed water-based acidic polymer solution additive. The polymer solution additive may include one or more of: polyacrylic acid (PAA) solution, poly (maleic acid, methyl methacrylate/methacrylic acid, butadiene/maleic acid) solutions, and water soluble polyacrylic acid. The electrode coating layer may include conductive additives. The current collector may include a metal foil, where the metal current collector includes one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer. The electrode coating layer may be more than 70% silicon.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: January 25, 2022
    Assignee: Enevate Corporation
    Inventors: Younes Ansari, Liwen Ji, Benjamin Park
  • Patent number: 11217793
    Abstract: According to one embodiment, an electrode is provided. The electrode includes the active material-containing layer formed on the current collector and including active material particles. The particle size distribution chart obtained by the laser diffraction scattering method for the active material particles includes the first region and the second region. The first particle group included in the first region includes the first active material particles, and the second particle group included in the second region includes second active material particles. The carbon coverage of the first particle group is higher than the carbon coverage of the second particle group.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: January 4, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuta Kanai, Tetsuya Sasakawa, Keigo Hoshina, Yasuhiro Harada, Norio Takami
  • Patent number: 11217789
    Abstract: Provided is a composite metal oxide which is represented by Formula (1) and has an ?-NaFeO2 type crystal structure, in which a peak half value width of a (104) plane to be measured by powder X-ray diffraction is 0.250° or less at 2?. NaxM1r(FeyNizMnwM1?y?z?w)O2±???(1) (in Formula (1), M represents any one or more elements selected from the group consisting of B, Si, V, Ti, Co, Mo, Pd, Re, Pb, and Bi, M1 represents any one or more elements selected from the group consisting of Mg and Ca, and relations 0?r?0.1, 0.5?x?1.0, 0.1?y?0.5, 0<z<0.4, 0<w<0.4, 0???0.05, and y+z+w?1 are satisfied).
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 4, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Kiwamu Tonosaki
  • Patent number: 11211606
    Abstract: An electrode for a battery, comprising an active material and a metallic fabric is disclosed. The metallic fabric comprises fibers being at least partially covered by a coating of nickel or copper, which comprises a layer and a plurality of protrusions protruding from the layer. The active material is attached on the protrusions. The metallic fabric provides a high electrical conductivity and a high mechanical stability, and demonstrates outstanding performance for the use as a current collector of battery.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: December 28, 2021
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Zijian Zheng, Dongrui Wang
  • Patent number: 11189829
    Abstract: The present disclosure relates to a positive electrode active material for a lithium secondary battery and a method of preparing the same, and more particularly, to a positive electrode active material for a lithium secondary battery comprising a lithium-nickel-based transition metal oxide; and a coating layer formed on the lithium-nickel-based transition metal oxide, the coating layer comprising a metal oxalate compound, and a method of preparing the same.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: November 30, 2021
    Inventors: Jun Seok Nho, Seung Beom Cho, Hyun Ah Park, Jun Seong Ahn
  • Patent number: 11171394
    Abstract: The present teaching provides a highly durable lithium ion secondary battery including a flat shape wound electrode body, with which a high capacity retention ratio and suppression of resistance rise are realized, and also provides a battery pack constructed by using the secondary battery as a unit battery. The lithium ion secondary battery (unit battery) provided in accordance with the present teaching has a flat-shaped wound electrode body 20, and in a state in which a constraint pressure is applied in the direction toward the flat surface of the wound electrode body under the same conditions as the conditions when the battery pack is constructed, the condition of a D/B ratio being 1.01 or more and 1.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: November 9, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Onoda, Nobuaki Koiwa
  • Patent number: 11121378
    Abstract: A mixed conductor represented by Formula 1: A4+xM5-yM?yO12-?,??Formula 1 wherein, in Formula 1, A is a monovalent cation, M is at least one of a divalent cation, a trivalent cation, or a tetravalent cation, M? is at least one of a monovalent cation, a divalent cation, a trivalent cation, a tetravalent cation, a pentavalent cation, or a hexavalent cation, M and M? are different from each other, and 0.3?x<3, 0.01<y<2, and 0???1 are satisfied.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: September 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunpyo Lee, Hyukjae Kwon, Sangbok Ma, Donghwa Seo, Dongmin Im
  • Patent number: 11114658
    Abstract: Provided are a positive active material for a rechargeable lithium battery and a positive electrode including the same. The positive active material for a rechargeable lithium battery includes a first positive active material and a second positive active material, wherein the first positive active material includes at least one nickel-based lithium composite oxide, and the second positive active material is represented by Chemical Formula 2 and has an average particle diameter of about 300 nm to about 600 nm: Lia1Fe1-x1M1x1PO4.??[Chemical Formula 2] In Chemical Formula 2, 0.90?a1?1.8, 0?x1?0.7, and M1 may be Mg, Co, Ni, or a combination thereof.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: September 7, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Heeeun Yoo, Junghyun Nam, Hoon Seok, Yeonhee Yoon, Kyuseo Lee, Bokkyu Jeon, Jaehwan Ha
  • Patent number: 11101494
    Abstract: A method for manufacturing a battery assembly provided by the present invention includes a step of measuring a stacking direction length of a stacked body including a predetermined number of unit cells (12) constituting a battery assembly (10) and arranged in the stacking direction; and a step of bundling a body (20) to be bundled that includes the stacked body. Here, the body to be bundled is provided with length adjusting means (40) for converging a spread in stacking direction length. The bundling step is implemented by setting the length adjusting means according to the stacking direction length of the stacked body, so that a length of the battery assembly in the stacking direction is a stipulated length (LT) and a bundling pressure of the body to be bundled is a stipulated pressure.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: August 24, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satomi Kawase, Tomohiro Matsuura
  • Patent number: 11075533
    Abstract: A lithium ion secondary battery includes a positive electrode including a positive electrode active material layer containing lithium iron phosphate, a negative electrode including a negative electrode active material layer containing graphite, and an electrolyte including a lithium salt and a solvent including ethylene carbonate and diethyl carbonate between the positive electrode and the negative electrode. When the battery temperature of the lithium ion secondary battery or the temperature of an environment in which the lithium ion secondary battery is used is T and given temperatures are T1 and T2 (T1<T2), in the case where T<T1, constant current charge is performed until voltage reaches a given value and then constant voltage charge is performed; in the case where T1?T<T2, only constant current charge is performed; and in the case where T2?T, charge is not performed.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: July 27, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Junpei Momo, Hiroyuki Miyake, Kei Takahashi
  • Patent number: 11069893
    Abstract: The present invention provides a sulfur-based active material prepared using an inexpensive polymer material as a starting material and a method of preparing the sulfur-based active material. A non-aqueous electrolyte secondary battery such as a lithium-ion secondary battery provided with an electrode comprising the sulfur-based active material has a large charging and discharging capacity and an excellent cyclability.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: July 20, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya Kubo, Fumiya Chujo
  • Patent number: 11038195
    Abstract: Provided is graphene-embraced particulate for use as a lithium-ion battery anode active material, wherein the particulate comprises primary particle(s) of an anode active material and multiple sheets of a first graphene material overlapped together to embrace or encapsulate the primary particle(s) and wherein a single or a plurality of graphene-encapsulated primary particles, along with an optional conductive additive, are further embraced or encapsulated by multiple sheets of a second graphene material, wherein the first graphene and the second graphene material is each in an amount from 0.01% to 20% by weight and the optional conductive additive is in an amount from 0% to 50% by weight, all based on the total weight of the particulate. Also provided are an anode and a battery comprising multiple graphene-embraced particulates.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: June 15, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Jun Yin, Jen-Hsien Yang, Yu-Sheng Su, Bor Z. Jang
  • Patent number: 11011281
    Abstract: A conductive sheet according to an aspect of the present invention includes a first nanostructure and a second nanostructure disposed to intersect each other. A thickness of an intersect region of the first nanostructure and the second nanostructure is 0.6 to 0.9 times the sum of thicknesses of non-intersection regions of the first nanostructure and the second nanostructure.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: May 18, 2021
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Byung Hoon Song, Dong Ki Keum, Dae Chul Park
  • Patent number: 11011745
    Abstract: To provide an anode mixture configured to, when used in an all-solid-state battery, decrease the resistance of the all-solid-state battery and increase the charging performance of the all-solid-state battery, wherein the anode mixture is an anode mixture for an all-solid-state battery comprising an anode comprising an anode mixture layer; wherein the anode mixture contains a first anode active material and a second anode active material; and wherein a difference between a reaction potential of the first anode active material with respect to lithium metal and a reaction potential of the second anode active material with respect to lithium metal, is 1.0 V or more.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: May 18, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Nagase
  • Patent number: 10998550
    Abstract: According to the present disclosure, a method of fabricating a metal-carbon fibrous structure is provided. The method comprises the steps of: (a) forming a fibrous support structure comprising composite nanocrystals and polymeric fibers, wherein each of the composite nanocrystals comprises metal ions connected by organic ligands; (b) growing the composite nanocrystals on the fibrous support structure; and (c) subjecting the fibrous support structure of step (b) to carbonization to form the metal-carbon fibrous structure, wherein the metal-carbon fibrous structure comprises metal nanoparticles derived from the composite nanocrystals comprising metal organic framework (MOF), particularly zeolitic imidazolate framework (ZIF). A metal-carbon fibrous structure comprising carbon based fibers arranged to form a porous network and the carbon based fibers are doped with metal nanoparticles, wherein the carbon based fibers have surfaces which comprise graphitic carbon, is also disclosed herein.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: May 4, 2021
    Assignee: Agency for Science, Technology and Research
    Inventors: Suxi Wang, Xu Li, Andy Hor, Zhongxing Zhang, Kia Jia Benny Chew
  • Patent number: 10991938
    Abstract: The present invention relates to a lithium complex oxide, and more specifically, to a lithium complex oxide of which a range of FWHM(104) values maintains a constant relationship with a molar fraction of nickel when measuring XRD defined by a hexagonal lattice having a R-3m space group. The lithium complex oxide according to the present invention exhibits an effect of improving lifetime properties of the cells including high Ni-based cathode active materials accordingly by enabling a range of the FWHM(104) values at (104) peaks defined b the hexagonal lattice having the R-3m space group to maintain a constant relationship with the molar fraction of nickel, thereby maintaining the primary particles in a predetermined size range.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: April 27, 2021
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Jung Han Lee, Moon Ho Choi, Jun Won Suh, Sung Jin Jang, Ji Hyun Nam, Seung Woo Choi
  • Patent number: 10930935
    Abstract: Disclosed are a cathode additive of a lithium secondary battery which may have improved crystallinity and a method for preparing the same. The cathode additive may be provided to suppress generation of oxygen gas or gelation of an electrode slurry composition, which may occur due to reduction in the content of residual by-products containing lithium oxide.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: February 23, 2021
    Inventors: Hyelim Jeon, Donghun Lee, Sang wook Lee, Seul Ki Kim, Eunsol Lho, Wang Mo Jung
  • Patent number: 10923709
    Abstract: The disclosure describes an exemplary binding layer formed on Aluminum (Al) substrate that binds the substrate with a coated material. Additionally, an extended form of the binding layer is described. By making a solution containing Al-transition metal elements-P—O, the solution can be used in slurry making (the slurry contains active materials) in certain embodiments. The slurry can be coated on Al substrate followed by heat treatment to form a novel electrode. Alternatively, in certain embodiments, the solution containing Al-transition metal elements-P—O can be mixed with active material powder, after heat treatment, to form new powder particles bound by the binder.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: February 16, 2021
    Assignee: Changs Ascending Enterprise, Co., Ltd.
    Inventors: Chun-Chieh Chang, Tsun Yu Chang
  • Patent number: 10916799
    Abstract: A positive electrode material for a secondary battery, includes: a composition represented by Li4+xFe4+y(P2O7)3 (?0.80?x?0.60, ?0.30?y?0.40, and ?0.30?x+y?0.30); and tungsten, wherein the positive electrode material has a triclinic crystal structure.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: February 9, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Tomochika Kurita, Jiyunichi Iwata
  • Patent number: 10897044
    Abstract: A cathode material for a lithium-ion secondary battery of the present invention is active material particles including central particles represented by General Formula LixAyDzPO4 (0.9<x<1.1, 0<y?1, 0?z<1, and 0.9<y+z<1.1; here, A represents at least one element selected from the group consisting of Co, Mn, Ni, Fe, Cu, and Cr, and D represents at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, and Y) and a carbonaceous film that coats surfaces of the central particles, in which a coarse particle ratio in a particle size distribution is 35% or more and 65% or less.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: January 19, 2021
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Ryuuta Yamaya, Masataka Oyama
  • Patent number: 10896784
    Abstract: Provided is a method of producing graphene directly from a non-intercalated and non-oxidized graphitic material, comprising: (a) dispersing the graphitic material in a liquid solution to form a suspension, wherein the graphitic material has never been previously exposed to chemical intercalation or oxidation; and (b) subjecting the suspension to microwave or radio frequency irradiation with a frequency and an intensity for a length of time sufficient for producing graphene; wherein the liquid solution contains a metal salt dissolved in water, organic solvent, ionic liquid solvent, or a combination thereof. The method is fast (minutes as opposed to hours or days of conventional processes), environmentally benign, and highly scalable.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: January 19, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Yi-Jun Lin, Aruna Zhamu, Bor Z. Jang
  • Patent number: 10868305
    Abstract: A composite cathode active material includes a first cathode active material including a core including a first lithium transition metal oxide represented by Formula 1 and having a first layered crystalline phase that belongs to a R-3m space group; and a coating layer disposed on the core and including a second lithium transition metal oxide having a plurality of layered crystalline phases, wherein each layered crystalline phase of the plurality of layered crystalline phases has a different composition: LiaMO2??Formula 1 wherein, in Formula 1, 1.0?a?1.03; and M includes nickel and an element including a Group 4 element to a Group 13 element other than nickel.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: December 15, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Byungjin Choi, Byongyong Yu, Jinhwan Park, Jayhyok Song
  • Patent number: 10862113
    Abstract: A positive active material including: a core comprising a metal oxide, a non-metal oxide, or a combination thereof capable of intercalation and deintercalation of lithium ions or sodium ions; and a non-conductive carbonaceous film including oxygen on at least one portion of a surface of the core; a lithium battery including the positive active material; and a method of manufacturing the positive active material.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwangjin Park, Jaegu Yoon, Jeongkuk Shon, Minsang Song, Jaejun Chang, Sangmin Ji, Jaeman Choi, Dongjin Ham
  • Patent number: 10854876
    Abstract: A positive-electrode active material contains a compound represented by the following composition formula (1): LixMeyO?X???(1) where Me denotes one or more elements selected from the group consisting of Mn, Ni, Co, Fe, Al, Sn, Cu, Nb, Mo, Bi, Ti, V, Cr, Y, Zr, Zn, Na, K, Ca, Mg, Pt, Au, Ag, Ru, Ta, W, La, Ce, Pr, Sm, Eu, Dy, and Er, X denotes two or more elements selected from the group consisting of F, Cl, Br, I, N, and S, and x, y, ?, and ? satisfy 0.75?x?2.25, 0.75?y?1.50, 1??<3, and 0<??2, respectively. A crystal structure of the compound belongs to a space group Fm-3m.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: December 1, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Issei Ikeuchi, Ryuichi Natsui, Kensuke Nakura
  • Patent number: 10811663
    Abstract: Methods and systems for welding a terminal of a battery cell to corresponding terminal tab or busbar are described using a magnet that causes the terminal and tab/busbar to be placed in physical contact. The terminal of a battery cell is aligned in contact with the tab/busbar by the force of a magnetic field. A welder, e.g., a laser welder, can then generate a laser weld beam to weld the terminal of the battery cell to the tab/busbar. Next, the laser weld beam is narrowed, reducing the first diameter to a smaller second diameter. Without touching the tab/busbar or terminal of the battery (which could affect the welding operation), the magnetic field can cause a force that brings the tab and terminal in contact during welding.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: October 20, 2020
    Assignee: NIO USA, Inc.
    Inventors: Austin L. Newman, Alexander J. Smith
  • Patent number: 10804527
    Abstract: Disclosed are a positive active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the same. More specifically, the positive active material for a rechargeable lithium battery is a compound having an orthorhombic layered structure represented by the following Chemical Formula 1 or a compound represented by the following Chemical Formula 2, a method for producing the same, and a rechargeable lithium battery including the same. Li1+xMyO2+z??[Chemical Formula 1] {m(Li1+xMyO2+z)}.{1-m(LiMO2)}??[Chemical Formula 2] Wherein, in the above Chemical Formula 1 or Chemical Formula 2, M is one or more elements selected from the group consisting of Mn, Co, Ni, Al, Ti, Mo, V, Cr, Fe, Cu, Zr, Nb, and Ga, 0.7?x?1.2, 0.8?y?1.2, ?0.2?z?0.2, and 0<m?1.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 13, 2020
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jin-Myoung Lim, Duho Kim, Maenghyo Cho, Kyeong-jae Cho
  • Patent number: 10752504
    Abstract: The present invention relates to a method for preparing a lithium metal phosphor oxide, the method including: mixing an iron salt solution and a phosphate solution in a reactor; applying a shearing force to the mixed solution in the reactor during the mixing to form a suspension containing nano-sized iron phosphate precipitate particles; obtaining the nano-sized iron phosphate particles from the suspension; and mixing the iron phosphate with a lithium raw material and performing firing, and the lithium metal phosphor oxide according to the present invention has an Equation of LiMnFePO4. Herein, M is selected from the group consisting of Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, and Mg, and n is in a range of 0 to 1.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: August 25, 2020
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Hyun A Song, Dong Gyu Chang, Woo Young Yang
  • Patent number: 10741837
    Abstract: A positive electroactive material for a lithium-ion battery can have a tap density ranging from 2.50 to 2.90 g/cm3, a Span value ranging from 1.04 to 1.68 and/or a capacity ranging from 195 to 210 mAh/g obtained using a discharging current of C/5 current rate. The material can have a formula Lia[NixMnyCo1?x?y]zM1?zO2, wherein a is between approximately 1.02 and 1.07, x is between approximately 0.60 to 0.82, y is between approximately 0.09 to 0.20, z is between approximately 0.95 to 1.0, and 1?x?y is greater than 0. A cost-effective and large-scale synthetic method for preparing the positive electroactive material, an electrochemical cell containing the positive electroactive material, and a battery comprising one or more lithium ion electrochemical cells are also described.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: August 11, 2020
    Assignee: Lionano Inc.
    Inventors: Dong Ren, Yun Shen, Yingchao Yu
  • Patent number: 10707492
    Abstract: The invention relates to an electrode formed by the blending of dry active powdery electrode forming materials with an aqueous binder dispersion, and the subsequent adhering of the wet binder/dry active powdery electrode-forming materials blend to an electroconductive substrate, resulting in an electrode. The aqueous binder is preferably a fluoropolymer, and more preferably polyvinylidene fluoride (PVDF). The hybrid process provides the good dispersion and small particle size of a wet process, with the energy savings and reduced environmental impact of a dry process. The resulting electrode is useful in energy-storage devices.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: July 7, 2020
    Assignee: Arkema Inc
    Inventors: Ramin Amin-Sanayei, Jason Pomante, Wensheng He
  • Patent number: 10700333
    Abstract: The present invention relates to a separator for a secondary battery and a lithium secondary battery comprising the same, wherein the separator comprises a porous substrate and a heat-resistant porous layer positioned on at least one surface of the porous substrate, the heat-resistant porous layer comprising a first binder, a second binder, and a filler, the first binder comprising a copolymer having: a first structural unit derived from a first fluorine monomer; a second structural unit derived from a second fluorine monomer; and a third structural unit derived from a monomer comprising at least one functional group selected from a hydroxyl group, a carboxyl group, an ester group, an acid anhydride group, and a derivative thereof, the second binder comprising at least one of a vinylidene fluoride homopolymer and a vinylidene fluoride copolymer.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 30, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyeonsun Choi, Keewook Kim, Jinkyu Park
  • Patent number: 10689537
    Abstract: A method of forming a graphene-based material includes: (1) treating a mixture including an etchant and graphene oxide sheets to yield formation of holey graphene oxide sheets; (2) dispersing the holey graphene oxide sheets in a re-dispersal solvent to yield a holey graphene oxide dispersion including the holey graphene oxide sheets; and (3) treating the holey graphene oxide dispersion under reducing conditions to yield self-assembly of the holey graphene oxide sheets into a graphene-based material.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: June 23, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Xiangfeng Duan, Yuxi Xu, Yu Huang
  • Patent number: 10651466
    Abstract: According to one embodiment, there is provided an active material. The active material includes a composite oxide having an orthorhombic structure. The composite oxide is represented by the general formula Ti2(Nb1-xTax)2O9 (0?x?1). The composite oxide has an average valence of niobium and/or tantalum of 4.95 or more.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: May 12, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhiro Harada, Kazuomi Yoshima, Norio Takami, Hiroki Inagaki
  • Patent number: 10637041
    Abstract: Provided is a Ni—Fe battery comprising an iron electrode which is preconditioned prior to any charge-discharge cycle. The preconditioned iron electrode used in the Ni—Fe battery is prepared by first fabricating an electrode comprising an iron active material, and then treating the surface of the electrode with an oxidant to thereby create an oxidized surface.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 28, 2020
    Assignee: ENCELL TECHNOLOGY, INC.
    Inventors: Randy Gene Ogg, Michael Roders, Michael Meese
  • Patent number: 10637047
    Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The positive active material includes a lithium intercalation compound and a Si-containing TiO2 present on the surface of the compound. When TiO2 is present on the surface of the lithium intercalation compound, the rate characteristics and low temperature characteristics of batteries including the lithium intercalation compound may be improved. Further, when Si-containing TiO2 is present on the surface of the lithium intercalation compound, the cycle-life characteristic and high temperature storage characteristics of batteries including the lithium intercalation compound may be further improved, compared to batteries having only TiO2. As such, the positive active material including Si-containing TiO2 provides a rechargeable lithium battery having excellent rate capability, low temperature characteristics, cycle-life characteristics and high temperature storage characteristics.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: April 28, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jihyun Kim, Changwook Kim, Sooyoun Park, Kyouyoon Sheem, Hyunjoo Je
  • Patent number: 10629899
    Abstract: Provided is a method of producing multiple anode particulates, comprising: a) dispersing an electrically conducting material, primary particles of an anode active material, an optional electron-conducting material, and a sacrificial material in a liquid medium to form a precursor mixture; b) forming the precursor mixture into droplets and drying the droplets; and c) removing the sacrificial material or thermally converting the sacrificial material into a carbon material to obtain multiple particulates, wherein a particulate comprises one or a plurality of anode active material particles having a volume Va, an electron-conducting material, and pores having a volume Vp which are encapsulated by a thin encapsulating layer having a thickness from 1 nm to 10 ?m and a lithium ion conductivity from 10?8 S/cm to 5×10?2 S/cm and the volume ratio Vp/Va in the particulate is from 0.3/1.0 to 5.0/1.0.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: April 21, 2020
    Assignee: Global Graphene Group, Inc.
    Inventor: Bor Z. Jang
  • Patent number: 10626264
    Abstract: The present invention addresses the problem of providing an electrically conductive composition which can be used for producing an electric storage device such as a non-aqueous electrolyte secondary battery (e.g., a lithium ion secondary battery) having excellent electric conductivity during an ordinary operation and therefore having excellent battery output properties and the like and also having a function of increasing internal resistance when the internal temperature of the battery is increased, and which enables the production of an electric storage device such as a non-aqueous electrolyte secondary battery having excellent electric conductivity and safety-related functions.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: April 21, 2020
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Hirotomo Ito, Yasuyuki Moroishi, Junko Kawahara
  • Patent number: 10622627
    Abstract: In an example of a method for making a sulfur-based positive electrode active material, a carbon layer is formed on a sacrificial nanomaterial. The carbon layer is coated with titanium dioxide to form a titanium dioxide layer. The sacrificial nanomaterial is removed to form a hollow material including a hollow core surrounded by a carbon and titanium dioxide double shell. Sulfur is impregnated into the hollow core.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 14, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gayatri V. Dadheech, Xingcheng Xiao, Mei Cai
  • Patent number: 10608276
    Abstract: The present invention provides a novel carbon material comprising a three-dimensional graphene network constituting a plurality of cells interconnecting as a whole, where at least one of the cells has single-layer graphene wall. The carbon material is suitable for a lithium ion battery.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: March 31, 2020
    Assignee: NEC Corporation
    Inventors: Qian Cheng, Noriyuki Tamura, Kentaro Nakahara
  • Patent number: 10601019
    Abstract: An energy storage device including: an electrode assembly having a body portion and a first tab portion projecting from the body portion; and a container housing the electrode assembly, wherein a first current collector electrically connected to the first tab portion or the first tab portion, and the container have a swaged joint portion having a concavo-convex structure projecting toward the other side from one side.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: March 24, 2020
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Kazuto Maeda, Hirokazu Kambayashi, Shohei Yamao
  • Patent number: 10593992
    Abstract: Provided are: a potassium ion secondary battery which is not susceptible to deterioration of charge/discharge capacity even if charging and discharging are repeated, and which has a long service life as a secondary battery; a potassium ion capacitor; a negative electrode for the potassium ion secondary battery; and a negative electrode for the potassium ion capacitor. A negative electrode for potassium ion secondary batteries and a negative electrode for potassium ion capacitors, each of which contains a carbon material that is capable of absorbing and desorbing potassium and a binder that contains a polycarboxylic acid and/or a salt thereof. A potassium ion secondary battery which is provided with the negative electrode or the capacitor. A binder for negative electrodes of potassium ion secondary batteries or negative electrodes of potassium ion capacitors, which contains a polycarboxylic acid and/or a salt thereof.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: March 17, 2020
    Assignee: TOKYO UNIVERSITY OF SCIENCE FOUNDATION
    Inventors: Shinichi Komaba, Kei Kubota, Mouad Dahbi, Tatsuya Hasegawa