Patents Examined by Carlos Barcena
  • Energy storage apparatus
    Patent number: 11394081
    Abstract: An energy storage apparatus includes one or more energy storage devices and an outer housing that houses the one or more energy storage devices. The outer housing includes an opening that allows communication between an interior and an exterior of the outer housing. The opening is sealed by a first pressure adjuster and a second pressure adjuster arranged complementary to each other. The first pressure adjuster allows passage of gas and prohibits passage of liquid. The second pressure adjuster prohibits passage of the gas and the liquid, and releases an internal pressure in the interior of the outer housing when the internal pressure exceeds a predetermined pressure.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: July 19, 2022
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Toshiki Kusunoki, Osamu Ushijima
  • Negative electrode for lithium ion secondary battery and lithium ion secondary battery comprising the same
    Patent number: 11387442
    Abstract: Provided is a lithium ion secondary battery having high energy density and excellent cycle characteristics. The present invention relates to a negative electrode for a lithium ion secondary battery comprising: (i) a negative electrode mixture layer comprising a negative electrode active material and a negative electrode binder and (ii) a negative electrode current collector, wherein the negative electrode active material comprises an alloy comprising silicon (Si alloy), the Si alloy is crystalline and has a median diameter (D50 particle size) of 1.2 ?m or less, and an amount of the negative electrode binder based on the weight of the negative electrode mixture layer is 12% by weight or more and 50% by weight or less.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: July 12, 2022
    Assignee: NEC CORPORATION
    Inventors: Daisuke Kawasaki, Takuya Hasegawa, Takashi Ohtsuka
  • Anode material of lithium ion battery and non-aqueous electrolyte battery
    Patent number: 11380881
    Abstract: An anode material of a lithium-ion battery and a non-aqueous electrolyte lithium-ion battery are disclosed in the present invention. The anode material of a lithium-ion battery, wherein, a chemical formula of the anode material of the lithium-ion battery is MxNbyOz, wherein, M is a bivalent non-niobium metal ion, and x,y,z satisfy the following conditions: 0<x?3, 1?y?34, and 3?z?87.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: July 5, 2022
    Assignee: AAC Acoustic Technologies (Shenzhen) Co., Ltd.
    Inventors: Jian Zhang, Xiaoming Lou, Shaohai Chen
  • Electrode and a rechargeable lithium battery including the electrode
    Patent number: 11380889
    Abstract: Disclosed are an electrode for a rechargeable lithium battery and a rechargeable lithium battery. The electrode includes a current collector, a first active material layer, and a second active material layer. The first active material layer is formed on the current collector and includes a first active material. The second active material layer is formed on the first active material layer. The second active material layer includes a second active material having an active material and a meltdown polymer disposed on the surface of the active material.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: July 5, 2022
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kyuseo Lee, Heeeun Yoo, Yeonhee Yoon, Jaehwan Ha, Kijun Kim
  • Ion-conducting structures, devices including ion-conducting structures, and methods for use and fabrication thereof
    Patent number: 11374255
    Abstract: An ion-conducting structure comprises a metal-fibril complex formed by one or more elementary nanofibrils. Each elementary nanofibril can be composed of a plurality of cellulose molecular chains with functional groups. Each elementary nanofibril can also have a plurality of metal ions. Each metal ion can act as a coordination center between the functional groups of adjacent cellulose molecular chains so as to form a respective ion transport channel between the cellulose molecular chains. The metal-fibril complex can comprise a plurality of second ions. Each second ion can be disposed within one of the ion transport channels so as to be intercalated between the corresponding cellulose molecular chains. In some embodiments, the metal-fibril complex is formed as a solid-state structure.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: June 28, 2022
    Assignee: University of Maryland, College Park
    Inventors: Liangbing Hu, Tian Li, Chunpeng Yang, Xin Zhang, Robert M. Briber, Meiling Wu
  • Lithium ion secondary battery system, charging unit, and method for controlling lithium ion secondary battery
    Patent number: 11374252
    Abstract: Provided is a lithium ion secondary battery system having excellent reliability. Provided is a lithium ion secondary battery system including, at least a lithium ion secondary battery including a positive electrode and a negative electrode, and a lithium deposition sensor. In this lithium ion secondary battery system, the lithium deposition sensor includes an endotherm detector, and the endotherm detector detects endotherm in a constant current charging range.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: June 28, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Motoki Endo
  • Cobalt-free layered oxide cathodes
    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
  • Carbon conductive additives for lithium ion battery
    Patent number: 11349152
    Abstract: The invention provides a lithium ion battery, including an anode, a cathode and an electrolytic solution including imide anion based lithium salt and LiPO2F2. The cathode includes a cathode active material particle and a carbon conductive additive forming an island-bridge structure on the surface of the cathode active material particle. The carbon conductive additive includes graphenes partially covered with the surface of the cathode active material particle to form an island structure, carbon blacks attached on the surface of the graphene and carbon nanotubes connecting between graphenes as a bridge structure.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: May 31, 2022
    Assignee: NEC CORPORATION
    Inventors: Qian Cheng, Katsumi Maeda, Noriyuki Tamura, Mika Shiba
  • Electrochemical device
    Patent number: 11349124
    Abstract: The subject application relates to an electrochemical device including a cathode, an anode and an electrolyte. The cathode includes a fluoropolymer which has an X-ray diffraction spectrum with a diffraction peak in the range of 34°?2??38°. The electrolyte includes a compound having 2 to 3 cyano groups. The electrochemical device of the present application has excellent cycle and high temperature storage properties.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: May 31, 2022
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventor: Kefei Wang
  • Electrolyte for lithium secondary battery and lithium secondary battery including the same
    Patent number: 11335953
    Abstract: Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a difluorophosphite olefin compound, and a lithium secondary battery including the same.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 17, 2022
    Assignee: SK Innovation Co., Ltd.
    Inventors: In Haeng Cho, Hyo Shin Kwak, Joo Hyun Lee, Dai In Park
  • Electrolyte additive for lithium secondary battery and lithium secondary battery including the same
    Patent number: 11329318
    Abstract: Disclosed herein is an additive for a lithium secondary battery, the additive including a compound represented by Formula 1. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive represented by Formula 1. A lithium secondary battery includes: a cathode; an anode; and the electrolyte including the additive represented by Formula 1.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 10, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Wonseok Cho, Pavel Shatunov, Olga Tsay, Younghye Kang, Aeran Kim, Hyejin Park, Myungheui Woo, Duckjae You, Taejin Lee, Harim Lee, Jinhyeok Lim, Hyunbong Choi
  • Laminated electrolyte membrane, membrane electrode assembly, water electrolysis cell, stack, water electrolyzer, and hydrogen utilizing system
    Patent number: 11329294
    Abstract: A laminated electrolyte membrane of an embodiment includes: a first electrolyte membrane; a second electrolyte membrane; and a nanosheet laminated catalyst layer provided between the first electrolyte membrane and the second electrolyte membrane and including a laminated structure in which a plurality of nanosheet catalysts is laminated with a gap.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: May 10, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshihiko Nakano, Norihiro Yoshinaga, Wu Mei, Taishi Fukazawa
  • Electrode assembly and secondary lithium battery including the same
    Patent number: 11329290
    Abstract: Disclosed are an electrode assembly, and a secondary lithium battery including the same. The electrode assembly is configured by alternately stacking two or more positive electrodes and one or more negative electrodes using a separator as a boundary therebetween, outermost positive electrodes are positioned on outermost opposite surfaces of the electrode assembly, respectively, each of the outermost positive electrodes includes a positive electrode current collector, a positive active material layer formed on one surface of the positive electrode current collector, and a non-reversible material coating layer formed on the other surface of the positive electrode current collector and including lithium oxide, and the non-reversible material coating layer is positioned on an outermost surface of the electrode assembly.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: May 10, 2022
    Assignee: LG Energy Solution, Ltd.
    Inventors: Jooyong Song, In Chul Kim, Juri Kim, Hyun Min Kim
  • Positive electrode active material for lithium secondary battery, method of preparing the same, and positive electrode for lithium secondary battery and lithium secondary battery which include the positive electrode active material
    Patent number: 11316151
    Abstract: A positive electrode active material including a nickel-containing lithium transition metal oxide containing nickel in an amount of 60 mol % or more based on a total number of moles of transition metals excluding lithium, and a coating layer which is formed on a surface of the nickel-containing lithium transition metal oxide and includes a lithium-containing inorganic compound, a nickel oxide, and a nickel oxyhydroxide is provided. A method of preparing the positive electrode active material, and a positive electrode for a lithium secondary battery and a lithium secondary battery which include the positive electrode active material are also provided.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: April 26, 2022
    Inventor: Seo Hee Ju
  • Supercapacity lithium ion battery cathode material, preparation method therefor and application thereof
    Patent number: 11316160
    Abstract: A supercapacity lithium ion battery cathode material, a preparation method therefor and an application thereof. The supercapacity lithium ion battery cathode material consists of a transition metal-containing lithium ion cathode material and carbon which is coated on the surface of the lithium ion cathode material. The transition metal on the surface of the lithium ion cathode material is coordinated with carbon by means of X—C bonds to form transition metal-X—C chemical bonds, such that carbon stably coats the surface of the cathode material, wherein C is SP3 hybridization and/or SP2 hybridization, and X is at least one selected from among N, O and S.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: April 26, 2022
    Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOL
    Inventors: Feng Pan, Yandong Duan, Bingkai Zhang, Jiaxin Zheng, Jiangtao Hu, Tongchao Liu, Hua Guo, Yuan Lin, Wen Li, Xiaohe Song, Zengqing Zhuo, Yidong Liu
  • Methods for the production of cathode materials for lithium ion batteries
    Patent number: 11316157
    Abstract: The present disclosure provides methods for producing cathode materials for lithium ion batteries. Cathode materials that contain manganese are emphasized. Representative materials include LixNi1-y-zMnyCozO2 (NMC) (where x is in the range from 0.80 to 1.3, y is in the range from 0.01 to 0.5, and z is in the range from 0.01 to 0.5), LixMn2O4(LM), and LixNi1-yMnyO2 (LMN) (where x is in the range from 0.8 to 1.3 and y is in the range from 0.0 to 0.8). The process includes reactions of carboxylate precursors of nickel, manganese, and/or cobalt and lithiation with a lithium precursor. The carboxylate precursors are made from reactions of pure metals or metal compounds with carboxylic acids. The manganese precursor contains bivalent manganese and the process controls the oxidation state of manganese to avoid formation of higher oxidation states of manganese.
    Type: Grant
    Filed: May 19, 2019
    Date of Patent: April 26, 2022
    Assignee: Ge Solartech, LLC
    Inventor: Baoquan Huang
  • Negative electrode of nonaqueous lithium-ion secondary battery and nonaqueous lithium-ion secondary battery using same
    Patent number: 11302905
    Abstract: A negative electrode which includes graphite particles and which is capable of imparting superior input resistance characteristics to a nonaqueous lithium-ion secondary battery is provided. The negative electrode of a nonaqueous lithium-ion secondary battery disclosed herein includes graphite particles as negative electrode active materials and a supported material being supported by the graphite particles. The graphite particles have phenolic hydroxy groups. The supported material has surface hydroxy groups. A ratio of an amount B (mmol/g) of the surface hydroxy groups in the supported material to an amount A (mmol/g) of the phenolic hydroxy groups in the graphite particles is 30 or more and 150 or less.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: April 12, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinsuke Matsuhara, Hiroto Asano
  • Non-aqueous electrolyte solution and lithium secondary battery including the same
    Patent number: 11296359
    Abstract: A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes an HF indicator, and a pouch-type lithium secondary battery includes a pouch case having a transparent identification part for observing the interior of the pouch-type battery from the exterior of the pouch case. Defects generated during the preparation of the secondary battery may be visually identified based on the presence of hydrofluoric acid without disassembling the pouch-type battery.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: April 5, 2022
    Inventors: Ji Hye Park, Song Taek Oh
  • Electrodeposited copper foil, current collector, electrode, and lithium ion secondary battery comprising the same
    Patent number: 11283080
    Abstract: Provided are an electrodeposited copper foil, a current collector, an electrode, and a lithium-ion secondary battery comprising the same. The electrodeposited copper foil has a deposited side and a drum side opposite the deposited side. In a first aspect, ?RS between the deposited side and the drum side is at most about 95 MPa, and the deposited side exhibits a Vv in a range from about 0.15 ?m3/?m2 to about 1.35 ?m3/?m2. In a second aspect, the deposited side has a Sku of about 1.5 to about 6.5 and the deposited side exhibits a Vv in a range from about 0.15 ?m3/?m2 to about 1.35 ?m3/?m2. The characteristics are beneficial to improve the quality of the electrodeposited copper foil, thereby extending the charge-discharge cycle life of a lithium-ion secondary battery comprising the same.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: March 22, 2022
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Huei-Fang Huang, Ting-Chun Lai, Kuei-Sen Cheng, Jui-Chang Chou, Yao-Sheng Lai
  • Lithium secondary battery
    Patent number: 11283064
    Abstract: The present disclosure relates to a lithium secondary battery assembled without an anode active material. Since the lithium secondary battery of the present disclosure does not contain an anode active material such as a lithium metal during the assembling process, the manufacturing process is simple and easy, and it is possible to improve processability and manufacturing costs. In addition, it has an irreversible compensating additive, thereby exhibiting excellent battery life.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 22, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventor: Jeongbeom Lee