Alkalated Transition Metal Chalcogenide Component Is Active Material Patents (Class 429/231.1)
  • Patent number: 11557762
    Abstract: The present invention relates to a lithium composite metal oxide which satisfies the requirements (1) and (2) described below. Requirement (1): The ratio of the half width A of the diffraction peak within the range of 2?=64.5±1° to the half width B of the diffraction peak within the range of 2?=44.4±1°, namely A/B is from 1.39 to 1.75 (inclusive) in powder X-ray diffractometry using a Cu—K? ray. Requirement (2): The ratio of the volume-based 90% cumulative particle size (D90) to the volume-based 10% cumulative particle size (D10), namely D90/D10 is 3 or more.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: January 17, 2023
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Daisuke Nagao
  • Patent number: 11508987
    Abstract: The nonaqueous electrolyte secondary battery comprises the following: a positive electrode including a positive electrode active material that includes a lithium-containing transition metal oxide, a negative electrode including a negative electrode current collector wherein lithium metal deposits on the negative electrode current collector during charging, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The molar ratio of the total amount of lithium held by the positive electrode and the negative electrode to the amount of transition metal in the positive electrode is not more than 1.1. In addition, in the discharged state, a space layer is present between the negative electrode and the separator, and the positive electrode capacity per unit area, ? (mAh/cm2), of the positive electrode and the average in thickness, X (?m), of the space layer 50 satisfy 0.05??/X?0.2.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: November 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomohiro Harada, Hiroshi Minami
  • Patent number: 11508953
    Abstract: A negative electrode for a lithium secondary battery, which includes a negative electrode active material layer formed on a negative electrode collector, and a coating layer formed on the negative electrode active material layer and which includes lithium metal and metal oxide, a lithium secondary battery including the same, and a method of preparing the negative electrode.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: November 22, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Oh Byong Chae, Yoon Ah Kang, Jun Hyuk Song, Eun Kyung Kim, Sang Wook Woo
  • Patent number: 11444278
    Abstract: A positive electrode material for lithium secondary batteries capable of easily doping vanadium oxide with molybdenum, and a method of manufacturing the same are disclosed. The method of manufacturing a positive electrode material for lithium secondary batteries includes (a) reacting vanadium oxide with a water-soluble molybdenum-based compound in the presence of a solvent; and (b) thermally treating the reaction product of (a).
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: September 13, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sung Chul Lim, Jonghyun Chae, Suhwan Kim
  • Patent number: 11437618
    Abstract: A positive electrode active material for lithium secondary batteries which is able to doped/undoped with lithium ions and contains at least Ni, in which a ratio P/Q (atom %/mass %) of a concentration P (atom %) of sulfur atoms being present in a surface of the positive electrode active material to a concentration Q (mass %) of sulfuric acid radicals being present in the whole positive electrode active material is more than 0.8 and less than 5.0, and the Q (mass %) is 0.01 or more and 2.0 or less.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: September 6, 2022
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, TANAKA CHEMICAL CORPORATION
    Inventors: Takashi Arimura, Jun-ichi Kageura, Kenji Takamori, Kimiyasu Nakao, Daisuke Yamashita, Yusuke Maeda
  • Patent number: 11431042
    Abstract: A battery system includes a plurality of battery cells connected in parallel. Each battery cell includes a positive and negative tab. The battery system also includes a plurality of thermal switch devices (e.g., temperature cut off (TCO) or positive temperature coefficient (PTC) devices). Each thermal switch device is electrically coupled to a respective cell. The battery system further includes a rigid-flex circuit board comprising a plurality of rigid regions. Each rigid region is physically and electrically connected to an adjacent rigid region by a respective flexible region. Each rigid region is electrically coupled to respective positive and negative tabs of a respective battery cell. Each thermal switch device prevents abnormal current flow (e.g., by limiting the flow of current at high temperatures) between a first battery cell that is coupled to the thermal switch device and a second battery cell that is adjacent to the first battery cell.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: August 30, 2022
    Assignee: META PLATFORMS TECHNOLOGIES, LLC
    Inventors: Karthik Kadirvel, Jason Howard, Michael Xingyi Yu, Bryan W. Fan
  • Patent number: 11424436
    Abstract: A method of preparing a positive electrode active material for a secondary battery includes preparing a precursor of a composite transition metal oxide compound represented by Formula 1, and mixing the precursor, a lithium source, and a doping element source and sintering the mixture to form a doped lithium composite transition metal oxide, wherein the doping element source is a hydroxide-based compound. Ni1?(x1+y1)Cox1May1(OH)2??[Formula 1] wherein, Ma is at least one element selected from the group consisting of manganese (Mn) and aluminum (Al), and 0<x1?0.4, 0<y1?0.4, and 0<x1+y1?0.4. The positive electrode active material satisfies a weight loss ratio at 600° C. of 1.0% or less and a weight loss ratio at 900° C. of 2.0% or less during thermogravimetric analysis (TGA).
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: August 23, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Na Ri Park, Sung Soon Park
  • Patent number: 11417874
    Abstract: Provided is a non-aqueous electrolyte secondary battery capable of reliably operating an electricity shut-off mechanism at overcharging without deteriorating battery performance. The non-aqueous electrolyte secondary battery (1) includes, in a container (2): a positive electrode (41); in-container positive electrode terminals (21) and (23); a negative electrode (42); in-container negative electrode terminals (22) and (24); a non-aqueous electrolyte solution; and an electricity shut-off mechanism (68b) capable of shutting off energization with the outside of the container when the internal pressure of the container rises. A solid electrolyte layer that produces gas allowing the electricity shut-off mechanism (68b) to be operated is included in at least one member of a positive electrode mixture layer unformed portion (41b), a negative electrode mixture layer unformed portion (42b), the in-container positive electrode terminals (21) and (23), and the in-container negative electrode terminals (22) and (24).
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: August 16, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hidefumi Nikawa, Kazuki Saimen
  • Patent number: 11404686
    Abstract: The present invention provides a negative electrode active material for lithium ion batteries which has high adhesiveness and followability to a negative electrode active material in volume expansion and contraction during charging and discharging, excellent contact and adhesiveness to a conductive aid, a binder, and a current collector, and a high suppressing effect on decomposition of an electrolyte solution. Due to these features, the negative electrode active material for lithium ion batteries is capable of achieving excellent cycle characteristics and rate characteristics and high coulombic efficiency. The present invention also provides a negative electrode for lithium ion secondary batteries and a lithium ion secondary battery each including the negative electrode active material for lithium ion batteries, and a method for producing a negative electrode active material for lithium ion batteries.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: August 2, 2022
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga
  • Patent number: 11387453
    Abstract: Provided are a positive electrode active material that can provide a secondary battery extremely excellent in output characteristics and having sufficient volume energy density, a nickel-manganese composite hydroxide as a precursor thereof, and methods for producing these. A nickel-manganese composite hydroxide is represented by General Formula (1): NixMnyMz(OH)2+?, and contains a secondary particle formed of a plurality of flocculated primary particles. The nickel-manganese composite hydroxide has a half width of a (001) plane of at least 0.40° and has an average degree of sparsity/density represented by [(a void area within the secondary particle/a cross section of the secondary particle)×100] (%) falling within a range of greater than 22% and up to 40%.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: July 12, 2022
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Haruki Kaneda, Yuki Koshika, Takaaki Ando
  • Patent number: 11362330
    Abstract: A composite positive active material represented by Formula 1, LiaNibCocMndMeO2??Formula 1 wherein, in Formula 1, M is zirconium (Zr), aluminum (Al), rhenium (Re), vanadium (V), chromium (Cr), iron (Fe), gallium (Ga), silicon (Si), boron (B), ruthenium (Ru), titanium (Ti), niobium (Nb), molybdenum (Mo), magnesium (Mg), or platinum (Pt), 1.1?a?1.3, b+c+d+e?1, 0?b?0.3, 0?c?0.3, 0<d?0.6, and 0?e?0.1, wherein, through atomic interdiffusion of lithium and the metal, the composite positive active material has a uniform distribution of lithium excess regions and a uniform degree of disorder of metal cations, and the metal cations have a disordered, irregular arrangement at an atomic scale. Also a method of preparing the composite positive active material, a positive electrode including the composite positive active material, and a lithium battery including the positive electrode.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: June 14, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Donghee Yeon, Byoungwoo Kang, Junghwa Lee, Byungjin Choi, Sukgi Hong, Jinsu Ha
  • Patent number: 11362333
    Abstract: A cathode and a battery providing the cathode is provided. The cathode comprises a lithium metal oxide. The lithium metal oxide comprises nickel, aluminum, and iron. The lithium metal oxide is substantially free of cobalt. The battery comprises an anode, the cathode, a separator, and an electrolyte.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: June 14, 2022
    Assignee: UT-BATTELLE, LLC
    Inventors: Ilias Belharouak, Marissa Wood, Chengyu Mao, Jianlin Li, Jagjit Nanda, Nitin Muralidharan
  • Patent number: 11362318
    Abstract: A purpose of one embodiment of the present invention is to provide a lithium ion secondary battery which comprises lithium nickel composite oxide having high nickel content in a positive electrode and has excellent battery characteristics. The first lithium ion secondary battery of the present invention comprises a lithium nickel composite oxide represented by the following formula and carbon nanotubes in a positive electrode, wherein a ratio (a)/(b) of an average length (a) of the carbon nanotubes to an average particle size (b) of primary particles of the lithium nickel composite oxide is 0.5 or more, LiyNi(1-x)MxO2 wherein 0?x?0.4, 0<y?1.2, and M is at least one element selected from the group consisting of Co, Al, Mn, Fe, Ti, and B.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: June 14, 2022
    Assignee: NEC CORPORATION
    Inventor: Takeshi Azami
  • Patent number: 11362331
    Abstract: Compounds, powders, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: June 14, 2022
    Assignee: Apple Inc.
    Inventors: Hongli Dai, Akshaya K. Padhi, Huiming Wu, Dapeng Wang, Christopher S. Johnson, John David Carter, Martin Bettge, Ana Kircova, Chi-Kai Lin, YoungHo Shin, Xiaoping Wang
  • Patent number: 11342543
    Abstract: A method for activating a battery cell. The battery cell includes a positive electrode coated with a nickel cobalt manganese (NCM) positive electrode material, into which lithium nickel oxide (LNO) has been added or mixed. The method includes a step of charging the battery cell; and a step of discharging the battery cell, when, in the step of charging the battery cell, the battery cell is charged under a charging condition of C-rate of 0.1 C to 0.5 C in a state of being heated at a temperature of 45° C. to 60° C. When the activation process is performed according to the present invention having the above-described configuration, the pressing/heating conditions for suppressing generation of a gas may be provided to prevent swelling, battery deformation, and performance deterioration due to the generation of the gas from occurring.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 24, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jong Hwan Choi, Eun Ju Lee, Ji Eun Lee, Ye Jin Nam
  • Patent number: 11342588
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising dihydrofuranone based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises a dihydrofuranone based compound.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: May 24, 2022
    Assignee: Enevate Corporation
    Inventors: Hong Zhao, Liwen Ji, Heidi Anderson, Benjamin Yong Park
  • Patent number: 11335945
    Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 17, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Tomoya Futamura, Tamae Moriwaka, Takahiro Kawakami, Junpei Momo, Nobuhiro Inoue
  • Patent number: 11316150
    Abstract: Disclosed is a positive electrode for a lithium secondary battery, which includes: a positive electrode current collector; and a positive electrode active material layer including an upper layer portion and a lower layer portion, wherein each of the upper layer portion and the lower layer portion of the positive electrode active material layer includes a positive electrode active material, binder polymer and a conductive material, and the positive electrode active material has an electroconductivity of 0.0001-0.0004 S/cm, and the content of the conductive material contained in the lower layer portion is 10-59 parts by weight based on 100 parts by weight of the content of the conductive material contained in the upper layer portion, or the positive electrode active material has an electroconductivity of 0.008-0.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: April 26, 2022
    Inventors: Hye-Bin Kim, Jung-Seok Choi, Song-Taek Oh
  • Patent number: 11289277
    Abstract: There is demand for a lithium ion capacitor positive electrode that can improve the battery characteristics (and, in particular, the rate characteristics) of a lithium ion capacitor. This lithium ion capacitor positive electrode is characterized by containing, in a positive electrode active material, at least one titanate selected from among Li2TiO3, Li4Ti5O12, Na2TiO3, and K2Ti2O5.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: March 29, 2022
    Assignee: TAYCA CORPORATION
    Inventors: Ryosuke Sugihara, Keiichi Watanabe
  • Patent number: 11276848
    Abstract: A method of electrodepositing a transition metal oxide on to the surface of cathode or anode active materials used in Li-ion batteries, using an aqueous media. The transition metal oxide coating protects the cathode or anode active materials once they are fully delithiated or fully lithiated, respectively. The protective coating may be used also in gas sensors, biological cell sensors, supercapacitors, catalysts for fuel cells and metal air batteries, nano and optoelectronic devices, filtration devices, structural components, and energy storage devices.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: March 15, 2022
    Assignee: Xerion Advanced Battery Corporation
    Inventors: Mehmet Nurullah Ates, John David Busbee, Chadd Timothy Kiggins, John Berkeley Cook
  • Patent number: 11276874
    Abstract: A rechargeable battery is provided. The rechargeable battery includes a positive electrode substrate layer; a positive electrode active material layer disposed adjacent to the positive electrode substrate layer; a negative electrode substrate layer; a negative electrode active material layer disposed adjacent to the negative electrode substrate layer; a separator disposed between the positive electrode active material layer and the negative electrode active material layer; and a shape variable layer disposed between the positive electrode substrate and the positive electrode active material layer or between the negative electrode substrate and the negative electrode active material layer.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: March 15, 2022
    Inventors: Bookeun Oh, Yeonil Lee, Jaeyeon Lee
  • Patent number: 11271203
    Abstract: A method for preparing a N(M)C-based positive electrode materials according to the present invention comprises the following steps: —Precipitation of a metal (at least Ni— and Co—, preferably comprising Mn—) bearing precursor (MBP), —Fractionation of the MBP in a first (A) fraction and at least one second (B) fraction, —Lithiation of each of the first and second fraction, wherein the A fraction is converted into a first polycrystalline lithium transition metal oxide-based powder and the B fraction(s) is(are) converted into a second lithium transition metal oxide-based powder and, and —Mixing the first and second monolithic lithium transition metal oxide-based powder to obtain the N(M)C-based positive electrode material.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 8, 2022
    Assignees: Umicore, Umicore Korea Ltd.
    Inventors: Shinichi Kumakura, Jens Paulsen, TaeHyeon Yang, HyeJeong Yang, Song-Yi Han
  • Patent number: 11258064
    Abstract: A method for manufacturing a positive active material is provided. The method includes forming a positive active material precursor including nickel, mixing and firing the positive active material precursor and lithium salt to form a preliminary positive active material particle, forming a coating material including fluorine on the preliminary positive active material particle by dry-mixing the preliminary positive active material particle with a coating source including fluorine, and manufacturing a positive active material particle by thermally treating the preliminary positive active material particle on which the coating material is formed.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: February 22, 2022
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Yang-Kook Sun, Un Hyuck Kim
  • Patent number: 11258056
    Abstract: The present disclosure relates to a positive electrode material including a spinel-structured lithium manganese-based first positive electrode active material and a lithium nickel-manganese-cobalt-based second positive electrode active material, wherein the first positive electrode active material includes a lithium manganese oxide represented by Formula 1 and a coating layer which is disposed on a surface of the lithium manganese oxide, the second positive electrode active material is represented by Formula 2, and an average particle diameter of the second positive electrode active material is greater than an average particle diameter of the first positive electrode active material, and a positive electrode and a lithium secondary battery which include the positive electrode material: Li1+aMn2?bM1bO4?cAc??[Formula 1] Li1+x[NiyCozMnwM2v]O2?pBp??[Formula 2]
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: February 22, 2022
    Inventors: So Ra Baek, Wang Mo Jung, Min Suk Kang, Sang Wook Lee, Eun Sol Lho, Wen Xiu Wang
  • Patent number: 11251426
    Abstract: A positive electrode active material for a sodium secondary battery includes a sodium composite transition metal oxide represented by Formula 1 and having a P3 crystal structure, and a positive electrode and a sodium secondary battery which include the positive electrode active material. Nax[LiaM1-a]O2??[Formula 1] wherein M is at least one transition metal, 0.64?x?0.7, and 0.01?a?0.1.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: February 15, 2022
    Inventors: Hyo Jung Yoon, Kyu Tae Lee, Mi-Sook Kwon, Shin Gwon Lim
  • Patent number: 11239458
    Abstract: An energy storage device is provided that has improved power performance at low temperature. In the present embodiment, an energy storage device is provided that includes an electrode having an active material layer, the active material layer contains at least active material particles, the particles contained in the active material layer gives a volume-based particle size frequency distribution that has a first peak and a second peak appearing in a particle size larger than a particle size of the first peak, and particles having particle sizes equal to or smaller than a particle size Dx have a volume proportion of 49% or more and 62% or less in a volume of whole particles contained in the active material layer, with the particle size Dx defined as a particle size at a local minimum frequency between the first peak and the second peak in the particle size frequency distribution.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 1, 2022
    Assignee: GS Yuasa International Ltd.
    Inventors: Ryosuke Shimokawa, Tomonori Kako, Shota Ito, Kazuki Kawaguchi
  • Patent number: 11223033
    Abstract: Provided is a positive electrode active material for nonaqueous electrolyte secondary batteries that suppresses the gelling of a positive electrode mixture material paste and has high weather resistance, a production method thereof, and the like. A method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries includes cleaning a powder formed of a lithium-nickel composite oxide represented by a general formula LizNi1-x-yCoxMyO2 where 0?x?0.35; 0?y?0.10; 0.95?z?1.10; and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al with an aqueous lithium carbonate solution and drying the cleaned powder.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: January 11, 2022
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroko Oshita, Kazuomi Ryoshi
  • Patent number: 11217817
    Abstract: A rechargeable lithium ion battery including: a positive electrode including coated particles, wherein each particle includes a core and a coating disposed thereon, wherein the core consists of Li, M, and O, and the coating includes Li, M, O, and AI2O3; wherein: M is (Niz(Ni1/2Mn1/2)yCox)1?kAk; 0.15?z?0.50; 0.17?x?0.30; 0.35?y?0.75; 0<k<0.1; x+y+z=1; and A includes Al and optionally at least one additional metal dopant selected from Mg, Zr, W, Ti, Cr, V, Nb, B, and Ca, and combinations thereof; and wherein the Li and M are present in the core in a molar ratio of Li to M of at least 0.95 and no greater than 1.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: January 4, 2022
    Assignee: Umicore
    Inventors: Jeffrey R. Dahn, Rajalakshmi Senthil Arumugam, Jens Paulsen, Xin Xia, Jing Zhang
  • Patent number: 11201334
    Abstract: A positive electrode is provided with: a positive electrode current collector constituted of aluminum as the main component; a positive electrode mixture layer formed on the positive electrode current collector aid containing a lithium-containing transition metal oxide; and a protective layer interposed between the positive electrode current collector and the positive electrode mixture layer. The protective layer contains inorganic particles, a conductive agent, and a binder material. In the positive electrode, the peel strength between the positive electrode current collector and the protective layer is higher than the peel strength between the protective layer and the positive electrode mixture layer.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: December 14, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuki Endo, Tomoki Shiozaki, Yuji Oura
  • Patent number: 11196089
    Abstract: An electricity storage device includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and an electrolyte that includes an organic crystal layer including a layered structure and an organic solvent introduced into the organic crystal layer and that is interposed between the positive electrode and the negative electrode to conduct alkali metal ions. The layered structure includes an organic backbone layer containing an aromatic dicarboxylic acid anion having an aromatic ring structure, and an alkali metal element layer containing an alkali metal element that is coordinated with oxygen contained in a carboxylic acid of the organic backbone layer to form a framework. At least one of the positive electrode and the negative electrode adsorbs and desorbs the ions to store and release electric charge.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 7, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Nobuhiro Ogihara
  • Patent number: 11177472
    Abstract: Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 16, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hee Jin Woo, Dae Gun Jin, Hee Yeon Ryu, Yoon Ji Lee, Yong Gu Kim, Na Ry Shin, Eun Ji Kwon, Sang Jin Park
  • Patent number: 11177471
    Abstract: An electrochemically active material includes a silicon alloy material having the formula: SiwM1xCyOz, where w, x, y, and z represent atomic % values and w+x+y+z=1; M1 comprises a transition metal; w>0; x>0; y?0; and z?0. The electrochemically active material also includes a metal-based material having the formula: M2aObAc, where a, b, and c represent atomic % values and a+b+c=1; M2 comprises a metal; A is an anion; a>0; b?0; and c?0.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 16, 2021
    Assignee: JOHNSON MATTHEY PUBLIC COMPANY LIMITED
    Inventor: Fuxia Sun
  • Patent number: 11171366
    Abstract: A method for controlling a non-aqueous electrolyte secondary battery that includes connecting two non-aqueous electrolyte secondary batteries in series and setting the discharge cutoff voltage to 3.4 V to 4.6 V.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: November 9, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Masaharu Itaya
  • Patent number: 11165051
    Abstract: An electrode for nonaqueous electrolyte secondary batteries, which is provided with a collector and a positive electrode active material layer that is arranged on the collector and contains a positive electrode active material. The positive electrode active material is configured to contain compound particles which have a layered structure composed of two or more transition metals, and which have an average particle diameter DSEM of from 1 ?m to 7 ?m (inclusive), a ratio of the 50% particle diameter D50 in a volume-based cumulative particle size distribution to the average particle diameter DSEM, namely D50/DSEM of from 1 to 4 (inclusive), and a ratio of the 90% particle diameter D90 in the volume-based cumulative particle size distribution to the 10% particle diameter D10 in the volume-based cumulative particle size distribution, namely D90/D10 of 4 or less. The positive electrode active material layer has a void fraction of 10-45%.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: November 2, 2021
    Assignees: HONDA MOTOR CO., LTD., NICHIA CORPORATION
    Inventors: Atsushi Ogawa, Toru Sukigara, Hiroto Maeyama, Soshi Kawamura, Kenichi Kobayashi
  • Patent number: 11165061
    Abstract: The present invention relates to a method of preparing a positive electrode active material for a lithium secondary battery and the positive electrode active material for the lithium secondary battery prepared thereby, and more specifically, to a method of preparing a positive electrode active material for a lithium secondary battery, the method comprising doping or coating the positive electrode active material for the lithium secondary battery with a predetermined metal oxide, and the positive electrode active material for the lithium secondary battery which is prepared thereby and has a reduced amount of residual lithium.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: November 2, 2021
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jong Seung Shin, Suk Yong Jeon, Hyun Jong Yu, Young Nam Park
  • Patent number: 11165060
    Abstract: To provide a cathode active material with which it is possible to obtain a lithium ion secondary battery having a high discharge capacity and being excellent in the cycle characteristic, and its production process. A cathode active material, comprising particles of a lithium-containing composite oxide, the lithium-containing composite oxide being represented by Li?NiaCobMncTidMeO2+? wherein ? is from 1 to 1.8, a is from 0.15 to 0.5, b is from 0 to 0.09, c is from 0.33 to 0.8, d is from 0.01 to 0.1, e is from 0 to 0.1, ? is from 0 to 0.8, a+b+c+d+e=1, and M is Mg, Al, Ca or the like, wherein in an X-ray diffraction pattern, the ratio (H020/H003) of the height of a peak of (020) plane assigned to a crystal structure with space group C2/m to the height of a peak of (003) plane assigned to a crystal structure with space group R-3m is at least 0.02, and D90/D10 is at most 4.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: November 2, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Tomohiro Sakai
  • Patent number: 11152609
    Abstract: Compositions and methods of preparing energy storage device electrode active materials and electrodes are described. A two-step synthesis process may be utilized to prepare single crystal electrode active materials and electrodes, such as a single crystal nickel-cobalt-aluminum material. In some embodiments, the two step synthesis process includes a first and a second lithiation step.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: October 19, 2021
    Assignee: Panasonic Corporation
    Inventors: Hongyang Li, Jing Li, Jeffery Raymond Dahn
  • Patent number: 11139468
    Abstract: Disclosed is a cathode active material that can lower sintering temperature, the cathode active mated al including a particle of a lithium containing composite oxide having a layered rock-salt crystalline phase, wherein the layered rock-salt crystalline phase is partially deficient in lithium, a percentage of deficient lithium in the layered rock-salt crystalline phase in a surface portion of the particle is higher than that in the layered rock-salt crystalline phase inside the particle, and the particle includes two phases that are different in lattice constant as the layered rock-salt crystalline phase.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 5, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masatsugu Kawakami, Shingo Ohta
  • Patent number: 11139473
    Abstract: A porous silicon composition, a porous alloy composition, or a porous silicon containing cermet composition, as defined herein. A method of making: the porous silicon composition; the porous alloy composition, or the porous silicon containing cermet composition, as defined herein. Also disclosed is an electrode, and an energy storage device incorporating the electrode and at least one of the disclosed compositions, as defined herein.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: October 5, 2021
    Assignee: Corning Incorporated
    Inventors: Indrajit Dutta, Brian Alan Kent, Patrick David Tepesch, Shawn Michael O'Malley, Randall Eugene Youngman
  • Patent number: 11139471
    Abstract: The present disclosure provides a lithium ion battery including a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The positive electrode plate includes a positive electrode current collector, and a positive electrode film disposed on a surface of the positive electrode current collector and containing a positive electrode active material. The positive electrode active material includes a matrix, a first coating layer on the matrix in form of discrete islands, and a second coating layer on the first coating layer and the matrix as a continuous layer. The electrolyte includes an additive A and an additive B. The additive A is selected from a group consisting of cyclic sulfate compounds represented by Formula 1 and Formula 2, and combinations thereof, and the additive B is one or two selected from lithium difluorobisoxalate phosphate and lithium tetrafluorooxalate phosphate.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: October 5, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Ming Zhang, Hao Zhang, Cuiping Zhang, Changlong Han, Chenghua Fu
  • Patent number: 11133501
    Abstract: A composite positive active material includes a lithium nickel cobalt aluminum composite oxide. A full width at half maximum (FWHM) of a peak of a (104) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less and an FWHM of a peak of a (108) plane of the lithium nickel cobalt aluminum composite oxide is 0.15 or less, the peaks being obtained by X-ray diffraction analysis using a CuK? X-ray. A method of preparing the composite positive active material, and a lithium secondary battery including a positive electrode including the composite positive active material are disclosed.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 28, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Sanghoon Kim, Kwanghwan Cho, Eunsung Lee, Dohyung Park, ILseok Kim, Sol Choi
  • Patent number: 11133523
    Abstract: An aqueous electrolyte composition suitable for a lithium ion battery is provided. The aqueous electrolyte composition contains water, an ionic liquid which is a salt of a protonic cation and an anion comprising a fluoroalkylsulfonyl group and a lithium fluoroalkylsulfonyl salt. A lithium ion battery containing the aqueous electrolyte and a vehicle at least partially powered by the battery are also provided.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: September 28, 2021
    Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
    Inventors: Kensuke Takechi, Ruidong Yang
  • Patent number: 11121401
    Abstract: A method for producing a negative electrode for magnesium secondary batteries includes: providing a current collector having an underlying layer including a metal having a higher ionization tendency than magnesium, where the underlying layer is formed on a surface of the current collector; and forming a negative electrode active material layer including a magnesium layer on the current collector by a chemical plating method using the underlying layer as a base material.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: September 14, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kiyoshi Kumagae, Yuri Nakayama, Tadahiko Kubota
  • Patent number: 11121367
    Abstract: The disclosure provides a modified positive electrode active material, a preparation method thereof, and an electrochemical energy storage device. The modified positive electrode active material comprises positive electrode active material substrate; first oxide layer, coated on the surface of the positive electrode active material substrate and selected from one or more of oxides of element M being selected from the group of one or more of Li, Al, Zr, Mg, Ti, Y, Si, Ca, Cr, Fe, Zn, Nb, Sn, Ba, and Cd; and second oxide layer having a continuous layered structure, coated on the surface of the first oxide layer and selected from one or more of oxides of element M? being selected from one or more of Li, B, P, As, Pb, V, Mo, and Sn. High temperature storage performance and cycling performance of electrochemical energy storage device are improved by the modified positive electrode active material.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 14, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Rui Du, Na Liu, Yongchao Liu, Sihui Wang, Zhongling Xu, Chao Yang
  • Patent number: 11121370
    Abstract: Provided is an improved method for forming lithium ion cathode materials specifically for use in a battery. The method comprises forming a first solution comprising a digestible feedstock of a first metal suitable for formation of a cathode oxide precursor and a multi-carboxylic acid. The digestible feedstock is digested to form a first metal salt in solution wherein the first metal salt precipitates as a salt of deprotonated multi-carboxylic acid thereby forming an oxide precursor. The oxide precursor is heated to form the lithium ion cathode material.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: September 14, 2021
    Assignee: Nano One Materials Corp.
    Inventors: Annabelle Wong, Cameron Hodgins, Elahe Talaie Pashiri, Farhang Nesvaderani, O'Rian Reid, Sean Mehta, Stephen A. Campbell, Yingzi Feng
  • Patent number: 11081693
    Abstract: A composite cathode active material including: a secondary particle including a plurality of primary particles including a lithium transition metal oxide having a layered crystal structure; and a coating layer disposed on a surface of the secondary particle and between the primary particles of the plurality of primary particles, wherein the coating layer includes a lithium cobalt composite oxide having a spinel crystal structure, and wherein the lithium cobalt composite oxide includes cobalt (Co) and a Group 2 element, a Group 12 element, a Group 13 element, or a combination thereof.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: August 3, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Sukgi Hong, Youhwan Son, Byongyong Yu, Kwangjin Park, Junho Park, Jinhwan Park, Byungjin Choi
  • Patent number: 11081695
    Abstract: The present invention provides a positive active material for a rechargeable lithium battery, the active material including a dopant and having a crystalline structure in which metal oxide layers (MO layers) including metals and oxygen and reversible lithium layers are repeatedly stacked, wherein in a lattice configured by oxygen atoms of the MO layers adjacent to each other, the dopant time of charge, thereby forming a lithium trap and/or lithium dumbbell structure.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: August 3, 2021
    Inventors: Sung Bin Park, Young Uk Park, Ji Young Park, Bo Ram Lee, Chi Ho Jo, Young Cheol Choi, Hyuck Hur, Wang Mo Jung
  • Patent number: 11063262
    Abstract: The present application relates to an anode and an electrochemical apparatus and an electronic apparatus using the anode. Specifically, the present application provides an anode, comprising a substrate, an active material layer and a carbon coating layer between the substrate and the active material layer, wherein an X-ray diffraction pattern of the carbon coating layer comprises a 004 diffraction pattern and a 110 diffraction pattern, a ratio C004/C110 of a c-axial length C004 of a unit crystal cell length obtained from the 004 diffraction pattern to an a-axial length C110 of a unit crystal cell length obtained from the 110 diffraction pattern is an OI value of the carbon coating layer, and the OI value is greater than about 15. The anode of the present application has less wrinkling and bending, so as to reduce the deformation problem of a battery cell.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: July 13, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventor: Yuwei Sun
  • Patent number: 11043695
    Abstract: To provide a lithium-containing composite oxide, a cathode active material and a positive electrode for a lithium ion secondary battery, with which a lithium ion secondary battery having favorable cycle characteristics even when charged at a high voltage can be obtained; and a lithium ion secondary battery having favorable cycle characteristics even when charged at a high voltage. A lithium-containing composite oxide which is represented by LiaNibCocMndMeO2 wherein M is Mg, Ca, Al, Ti, V, Nb, Mo, W or Zr, a+b+c+d+e=2, “a” is from 1.01 to 1.10, b is from 0.30 to 0.95, c is from 0 to 0.35, d is from 0 to 0.35, and e is from 0 to 0.05, wherein in an X-ray diffraction pattern obtained by reflection X-ray diffraction employing Cu-K? rays, the ratio (I104/I110) of the integrated intensity (I104) of a peak of (104) plane to the integrated intensity (I110) of a peak of (110) plane is at least 4.20.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: June 22, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masahiko Tamura, Tomoo Kato, Takeshi Kawasato, Ryo Eguchi
  • Patent number: 11031596
    Abstract: Disclosed is a lithium complex oxide and method of manufacturing the same, more particularly, a lithium complex oxide effective in improving the characteristics of capacity, resistance, and lifetime with reduced residual lithium and with different interplanar distances of crystalline structure between a primary particle locating in a internal part of secondary particle and a primary particle locating on the surface part of the secondary particle, and a method of preparing the same.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 8, 2021
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jong Seung Shin, Dong Hee Kim, Suk Yong Jeon, Hyun Jong Yu, Kyoung Jun Lee, Young Nam Park