Patents Examined by Carlos Barcena
  • Patent number: 11211637
    Abstract: A lithium battery includes a positive electrode, a negative electrode containing lithium, and a nonaqueous electrolyte having lithium-ion conductivity, wherein the positive electrode contains at least one selected from the group consisting of manganese oxide and graphite fluoride, and a powdered or fibrous carbon material is attached to at least part of the surface of the negative electrode opposite the positive electrode. Further, the nonaqueous electrolyte includes a nonaqueous solvent, a solute, a first additive, and a second additive, the solute contains LiClO4, the first additive is LiBF4, and the second additive is a salt having an inorganic anion that contains sulfur and fluorine.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: December 28, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Miyuki Nakai, Yasuyuki Kusumoto
  • Patent number: 11205822
    Abstract: The present invention belongs to the technical fields of macromolecular materials and batteries, and particularly relates to a non-porous separator and the use thereof, more particularly to a non-porous separator having a gelation function and the use thereof. This non-porous separator is composed of two or more macromolecular materials, wherein at least one of the macromolecular materials can be gelled by an organic solvent. This non-porous separator can be used in batteries having an organic solvent-based electrolyte and a high energy density, such that not only can a micro-short circuit, generated due to the introduction of foreign matters such as metals, be prevented, leading to an improved qualification rate for the product, but also the safety performance and the cycle life of such a battery can be improved significantly.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 21, 2021
    Assignee: DKJ NEW ENERGY S & T CO. LTD.
    Inventors: Yuping Wu, Yusong Zhu, Jian Zheng
  • Patent number: 11201330
    Abstract: A power storage device electrode includes a layered structure having an organic framework layer containing aromatic dicarboxylic acid anions and an alkali metal element layer in which alkali metal elements are coordinated to oxygen atoms contained in the carboxylic acid anion to form a framework as an electrode active material, and in the whole of the electrode active material, a conductive material and a water-soluble polymer, carboxymethyl cellulose as the water-soluble polymer is contained in a range of 1.5 mass % or more and 3.5 mass % or less. In addition, the layered structure is produced by a spray drying method, and the peak intensity ratio when the power storage device electrode is subjected to X-ray diffraction measurement satisfies a predetermined range.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: December 14, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuhiro Ogihara, Osamu Hiruta, Yukiyoshi Ueno
  • Patent number: 11196047
    Abstract: A positive electrode active material containing a lithium metal composite oxide composed of secondary particles formed by aggregated primary particles, comprising lithium, at least one metal element and at least one additive element, the lithium metal composite oxide having a crystal structure of layered rock salt structure and the metal element including nickel in a content of 60 to 90 atomic percent and the additive element including boron in content of more than 1.0 atomic percent and 6.0 atomic percent or less, the nickel content and the boron content each with respect to the sum of the metal element and the additive element, the porosity of the secondary particles being 8% or more and 20% or less; a non-aqueous electrolyte secondary battery containing the positive electrode active material; and a process for producing the positive electrode active material.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: December 7, 2021
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Jun Suzuki, Koji Yamaji
  • Patent number: 11189821
    Abstract: This application relates to an electrochemical device. The electrochemical device comprises a positive electrode plate, a negative electrode plate and an electrolyte, wherein the positive electrode plate comprises a current collector, a positive electrode active material layer and a safety coating disposed between the current collector and the positive electrode active material layer; the safety coating comprises a polymer matrix, a conductive material and an inorganic filler; wherein based on the total weight of the polymer matrix, the conductive material and the inorganic filler, the polymer matrix is present in a content of from 35 wt % to 75 wt %, the conductive material is present in a content of from 5 wt % to 25 wt %, and the inorganic filler is present in a content of from 10 wt % to 60 wt %; and the electrolyte has a viscosity at normal temperature of ?4 cp.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: November 30, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Xiaowen Zhang, Zhenhua Li, Haizu Jin
  • Patent number: 11183692
    Abstract: A process for producing a layered lithium-manganese-nickel-cobalt oxide material, includes producing a raw layered lithium-manganese-nickel-cobalt oxide (“LMNC”) material. Optionally, a dopant capable of enhancing the performance of the layered LMNC material when used as a cathode material in an electrochemical cell, is introduced during the production of the raw LMNC material. Before any annealing of the raw LMNC material is effected, it is subjected to microwave treatment. The resultant treated material is annealed to obtain the layered LMNC material.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: November 23, 2021
    Assignee: CSIR
    Inventors: Kenneth Ikechukwu Ozoemena, Charl Jeremy Jafta
  • Patent number: 11177468
    Abstract: This application relates to the field of battery technologies, and in particular, to a high-compacted-density positive electrode material and an electrochemical energy storage apparatus. The positive electrode material includes a lithium-nickel transition metal oxide A and a lithium-nickel transition metal oxide B. The lithium-nickel transition metal oxide A is secondary particles, whose chemical formula is shown in formula I: Lia1(Nib1Coc1Mnd1)x1M1-x1O2-e1Xe1. The lithium-nickel transition metal oxide B is a monocrystalline structure or a monocrystalline-like structure, whose chemical formula is shown in formula II: Lia2(Nib2Coc2Mnd2)x2M?1-x2O2-e2X?e2 (II). The positive electrode material of this application includes the large-particle lithium-nickel transition metal oxide A and the small-particle lithium-nickel transition metal oxide B to improve an energy density of the battery.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 16, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Rui Du, Yongchao Liu, Deyu Zhao, Na Liu
  • Patent number: 11177507
    Abstract: Provided is an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a cyclic phosphate compound represented by the following Chemical Formula 2: wherein R1 to R6 and R? and R? are independently of one another hydrogen or C1-C7 alkyl; L2 is —(CR7R8)n—; R7 and R8 are independently of each other hydrogen or C1-C7 alkyl; and n is an integer of 1 to 3. Also provided is a lithium secondary battery including the electrolyte.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: November 16, 2021
    Assignee: SK Innovation Co., Ltd.
    Inventors: Sung Yon Oh, In Haeng Cho, Dong Gun Lee, Jin Haek Yang
  • Patent number: 11165097
    Abstract: The present application relates to an electrolyte, an electrochemical device and an electronic device comprising the same. The electrolyte of the present application includes a cyclic N-containing sulfonyl-compound and at least one of vinylene carbonate, fluoroethylene carbonate, lithium tetrafluoroborate, lithium difluoro(oxalato)borate or lithium difluorophosphate. The electrolyte of the present application may further include a sulfur-oxygen double bond containing compound and a silicon-containing carbonate. Compared with the prior art, using the electrolyte provided by the present application can effectively improve the high-temperature storage, cycle performance and overcharge performance of an electrochemical device, such as a lithium-ion battery.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: November 2, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Chunrui Xu, Wenqiang Li, Chao Tang, Shuirong Zhang
  • Patent number: 11165099
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising a cyclic organosilicon compound 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, and at least one electrolyte additive selected from a cyclic organosilicon compound.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 2, 2021
    Assignee: Enevate Corporation
    Inventors: Liwen Ji, Benjamin Yong Park
  • Patent number: 11158855
    Abstract: The invention relates to polymer-grafted silicon particles, wherein the silicon particles have an average particle size (d50) of 700 nm to 10 ?m and the polymers of the polymer-grafted silicon particles are attached to the silicon particles in a wash-stable manner in an aqueous medium.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: October 26, 2021
    Assignee: Wacker Chemie AG
    Inventors: Dominik Jantke, Stefan Haufe, Jürgen Stohrer
  • Patent number: 11158845
    Abstract: The present disclosure relates to an improved process for the synthesis of nanomaterials and composites from Zintl phases. The nanomaterials and composites are useful, for example, as ion storage materials.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: October 26, 2021
    Assignee: The George Washington University
    Inventors: Michael J. Wagner, Nathan A. Banek
  • 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: 11152607
    Abstract: A negative electrode and a rechargeable lithium battery, the negative electrode including a current collector; and a negative active material layer on at least one surface of the current collector, the negative active material layer including a carbon negative active material and a conductive agent, wherein the conductive agent includes at least one of a fiber-shaped conductive agent having a average length of about 1 ?m to about 200 ?m and a particle-shaped conductive agent having a average long diameter of about 1 ?m to about 20 ?m, and a DD (Degree of Divergence) value defined by Equation 1 is about 24 or greater: DD (Degree of Divergence)=(Ia/Itotal)*100??[Equation 1] wherein, in Equation 1, Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuK? ray, and Itotal is a sum of peak intensity at all angles measured by XRD using a CuK? ray.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jinhyon Lee, Bokhyun Ka, Kyeuyoon Sheem, Soon Ho Ahn, Junkyu Lee
  • Patent number: 11145941
    Abstract: A battery module is disclosed. In one aspect, the battery module includes a plurality of battery cells arranged in a first direction, and a circuit board placed on upper portions of the battery cells. The battery module also includes a bus bar electrically connecting the battery cells and electrically connected to the circuit board, and a pair of end plates respectively positioned at opposite ends of the battery cells in the first direction. The circuit board includes a connector located at one end of the circuit board and exposed to the exterior of the battery module. The connector is configured to be electrically connected to an external device. At least one of the pair of end plates is formed of a metallic material and includes a connector grounding portion enclosing the connector. The circuit board further includes a connection portion connected to the connector grounding portion.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: October 12, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hun Tae Ro
  • Patent number: 11139498
    Abstract: An electrode catalyst for fuel cells that can inhibit an increase in gas diffusion resistance includes a carbon material having a ratio of a peak intensity IA derived from an amorphous structure to a peak intensity IG derived from a graphite structure in an X-ray diffraction spectrum (ratio IA/IG) of 0.90 or less as a catalyst-supporting carrier.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 5, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Toru Yamamoto, Nobuaki Mizutani, Kohei Koyamada, Kotaro Horiai, Mikihiro Kataoka, Kenji Yamamoto
  • Patent number: 11139477
    Abstract: A binder composition for a lithium secondary battery and a lithium secondary battery including the binder, the binder composition including a copolymer that includes a first structure unit including amide, a second structural unit including carboxylic acid or a salt thereof, and a third structural unit including a morpholine ring or a thiomorpholine ring.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Soonsung Suh, Seunguk Kwon, Nam Seon Kim, Soo Jung Kim
  • Patent number: 11127975
    Abstract: An all solid battery includes: a solid electrolyte layer including solid electrolyte; a first electrode layer that is formed on a first main face of the solid electrolyte layer and includes an active material; and a second electrode layer that is formed on a second main face of the solid electrolyte layer and includes an active material, wherein the solid electrolyte layer includes polymer solid electrolyte including lithium salt, in a clearance of a sintered compact of phosphoric acid salt-based solid electrolyte.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 21, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takato Satoh, Daigo Ito, Sachie Tomizawa, Chie Kawamura
  • Patent number: 11121414
    Abstract: A battery assembly comprises a battery and a battery monitor. The battery has a cover, a post terminal, and a battery near field communication (“NFC”) device. The battery NFC device is disposed within the cover adjacent the post terminal. The battery monitor is removably attachable to the post terminal and has a monitor NFC device communicating with the battery NFC device.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: September 14, 2021
    Assignee: East Penn Manufacturing Co.
    Inventor: Stephen W. Moore
  • Patent number: 11121403
    Abstract: In a production method of an electrode for all-solid-state batteries, the electrode having an electrode mixture layer containing active material particles and solid electrolyte particles, the solid electrolyte particles include a first group of particles having an average particle diameter d1, and a second group of particles having an average particle diameter d2. The production method includes: a first mixing step of dry-mixing the active material particles and the first group of particles, to obtain a mixture A; a second mixing step of dry-mixing the mixture A and the second group of particles, to obtain a mixture B; and a pressing step of pressing the mixture B to form the electrode mixture layer. A ratio of the average particle diameter d2 to the average particle diameter d1:d2/d1 satisfies d2/d1?1.5.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: September 14, 2021
    Assignee: Hitachi Zosen Corporation
    Inventors: Hirokazu Kawase, Risa Nagai