Patents Examined by Jimmy Vo
  • Battery case, battery, and method for fabricating a battery
    Patent number: 11094982
    Abstract: A battery case including a container configured to house an electrode assembly, wherein the container includes a bottom wall and a plurality of side walls, the bottom wall and the side walls integrated to define a space for housing the electrode assembly and an open side opposed to the bottom wall, the container includes a composite including a polymer matrix, an inorganic moisture absorbent dispersed in the base polymer, and a compatibilizer to promote compatibility between the polymer matrix and the inorganic moisture absorbent, the compatibilizer is included in an amount of less than about 3 wt % based on a total weight of the composite, at least one of the bottom wall and the side walls at a thickness of 1 millimeter has a water vapor transmission rate of less than about 0.07 g/m2/day, when measured at 38° C. and a relative humidity of 100%.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: August 17, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Moo Ho Lee, Moon Il Jung, In Kim, In Su Lee, Junghoon Lee, Hye Jeong Lee, Song Won Hyun
  • Battery case, battery, and method for fabricating a battery
    Patent number: 11088357
    Abstract: A battery case including: a container configured to house an electrode assembly, wherein the container includes a bottom wall and a plurality of side walls, the bottom wall and the plurality of side walls are integrated to define a space for housing the electrode assembly and to provide a top opening opposite the bottom wall, the container includes a polymeric composition including a polymer and an inorganic moisture absorbent dispersed in the polymer, and the battery case has a water vapor transmission rate (WVTR) of less than about 0.05 grams per square meter per day, when measured at 38° C. and a relative humidity of 100% according to ISO 15106 or ASTM F1249.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: August 10, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Moon Il Jung, Song Won Hyun, In Kim, Moo Ho Lee, In Su Lee, Junghoon Lee, Hye Jeong Lee, Ginam Kim
  • Secondary battery-use anode and method of manufacturing the same, secondary battery and method of manufacturing the same, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus
    Patent number: 11088359
    Abstract: A secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes a first anode active material, a second anode active material, and an anode binder. The first anode active material includes a first central portion and a first coating portion. The first central portion includes a material that includes silicon as a constituent element, and the first coating portion is provided on a surface of the first central portion and includes one or both of a polyacrylate salt and a carboxymethylcellulose salt. The second anode active material includes a material that includes carbon as a constituent element. The anode binder includes one or more of polyvinylidene fluoride, polyimide, and aramid.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: August 10, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yosuke Koike, Yoshihide Nagata, Kazuaki Takada
  • Energy storage device and energy storage device production method
    Patent number: 11081723
    Abstract: An energy storage device includes: an electrode body including curved portions formed by winding an electrode; a container in which the electrode body is accommodated; and a cover plate structure including a cover plate closing the container. The electrode body is accommodated in the container while one end portion in a winding axis direction of the electrode body faces the cover plate structure. The energy storage device includes spacers (side spacers) that are attached to curved portions, and one end portion of the spacer abuts on a part of the cover plate structure.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: August 3, 2021
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Kenji Kawate, Takao Maki, Takeshi Kawahara
  • Methods and apparatus for a battery and regulating the temperature of batteries
    Patent number: 11069945
    Abstract: A battery that includes collectors with tabs that are wide with respect to the area of the collector. The wide tabs present a low electrical and thermal resistance to improve the flow of current and/or heat to and from the collector thereby improving electrical and thermal performance of the battery. The battery further includes terminals with a channel that supports the flow of medium (e.g., liquid) to heat and/or cool the battery. The terminals may include fins or pins to increase the surface area of the terminal to improve thermal transfer to and from the battery and collectors of the battery. The batteries may be formed into a battery module that includes a system for monitoring and regulating the temperature of the batteries of the module.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: July 20, 2021
    Assignee: Atlis Motor Vehicles, Inc.
    Inventor: Mark A. Hanchett
  • Aqueous binder composition for secondary battery electrode, slurry for secondary battery electrode, binder, secondary battery electrode, and secondary battery
    Patent number: 11063260
    Abstract: An aqueous binder composition for a secondary battery electrode containing a silane coupling agent without ethylenically unsaturated bonds, a resin which is a polymer of at least one kind of ethylenically unsaturated monomers, a resin which is a polymer of at least one kind of ethylenically unsaturated monomer, and at least one kind of solvent selected from water and a hydrophilic solvent. The amount of silane coupling agent is from 0.5 to 9 parts by mass based on 100 parts by mass of ethylenically unsaturated monomer. The pH of the composition is 2.5 to 8.0. Also disclosed is a binder obtained by curing the aqueous binder composition, a slurry containing the aqueous binder composition and an active material, a secondary battery electrode obtained by curing the slurry, and a secondary battery including the secondary battery electrode.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: July 13, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Mitsuru Hanasaki, Tomonori Kurata, Junya Uchiyashiki, Yasuhiro Nakagawa
  • Fuel cell system
    Patent number: 11063279
    Abstract: A fuel cell system includes: a first tank and a second tank each accumulating a fuel gas to be supplied to a fuel cell; a heating device disposed in a passage connecting the first tank and the second tank; and a controller configured to bring the heating device into operation so that the fuel gas flowing from one of the first tank and the second tank to the other of the first tank and the second tank through the heating device is heated when a condition for a temperature of the fuel gas in the first tank or a condition for a temperature of the fuel gas in the second tank is satisfied.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: July 13, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Yamanishi, Yasushi Araki
  • Fuel cell stack having fixing mechanisms
    Patent number: 11063287
    Abstract: A fuel cell stack includes: a stacked body including unit cells stacked; end plates sandwiching the stacked body in a stacking direction in which the unit cells are stacked; a tension plate fastening the end plates; and fixing mechanisms fixing the tension plate to the end plates.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: July 13, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hideo Nagaosa
  • Battery including electrode tab having flat surface
    Patent number: 11050126
    Abstract: A battery according to an embodiment may comprise an electrode assembly, said electrode assembly comprising an electrode substrate comprising a first area and a second area; an active material deposited on the first area of the electrode substrate; and an electrode tab attached to the second area of the electrode substrate, wherein the electrode tab comprises a bonding surface having at least one protrusion making contacting with a bonding location of the second area of the electrode substrate, wherein a surface opposite to the bonding surface and a surface opposite the bonding location are substantially flat.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 29, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Shihyun Kim, Juneyoung Hur, Sihoon Youm
  • Battery wrapping film, battery component, terminal
    Patent number: 11043711
    Abstract: A battery wrapping film, a battery component, and a terminal, where a first glue dot area and a second glue dot area are disposed in a first plane of the battery wrapping film to connect the battery and the battery wrapping film. The first glue dot area corresponds to a protruding area in a first plane of a housing, and the second glue dot area corresponds to a recessed area in the first plane of the housing. Hence, sparse glue dots are dispensed on the wrapping film corresponding to the protruding area on the housing, and dense glue dots are dispensed on the wrapping film corresponding to the recessed area on the housing, ensuring that the battery of the battery component is uniformly forced and is easy to detach.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: June 22, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Renwei Guo
  • Secondary battery and electrode member thereof having an electricity generation region with reduced curvature
    Patent number: 11043677
    Abstract: The present application relates to a secondary battery and an electrode member thereof. The electrode member includes an insulating substrate, a conducting layer and an active material layer. The conducting layer is provided on a surface of the insulating substrate, and the conducting layer includes a main portion and a protruding portion extending from the main portion, the main portion is coated with the active material layer, the protruding portion is not coated with the active material layer. The active material layer includes a first portion and a second portion, the first portion is positioned at an end of the active material layer away from the protruding portion, the second portion is positioned at a side of the first portion close to the protruding portion, and a thickness of the first portion is less than a thickness of the second portion.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: June 22, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Zige Zhang, Wei Li, Qingrui Xue, Jing Li, Pengxiang Wang, Yang Zhang
  • Power storage device and electronic device
    Patent number: 11038207
    Abstract: Provided is a power storage device whose charging and discharging characteristics are unlikely to be degraded by heat treatment or a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolyte, and an exterior body. The separator is positioned between the positive electrode and the negative electrode and includes polyphenylene sulfide or cellulosic fiber. The electrolyte includes propylene carbonate, ethylene carbonate, and vinylene carbonate, lithium hexafluorophosphate, and lithium bis(pentafluoroethanesulfonyl)amide. A concentration of lithium hexafluorophosphate with respect to the electrolyte is more than or equal to 0.01 wt % and less than or equal to 1.9 wt % in a weight ratio.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: June 15, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kazuhei Narita, Ryota Tajima
  • Surface treatment method and surface treatment apparatus of fuel cell separator
    Patent number: 11024857
    Abstract: A surface treatment method of a fuel cell separator capable of suppressing temperature unevenness of the fuel cell separator is provided. In the surface treatment method, an antimony-doped tin oxide (ATO) film is formed on a surface of a fuel cell separator (W1) used for a fuel cell. The fuel cell separator (W1) is heated using a high-frequency induction heating method (S1). By spraying solution (L1) including antimony and tin onto the fuel cell separator (W1), the ATO film is caused to be formed on the surface of the fuel cell separator (W1) (S2).
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 1, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Satoshi Takata
  • Nonaqueous electrolyte secondary battery
    Patent number: 11011781
    Abstract: An electrolytic solution of a nonaqueous electrolyte secondary battery contains a metal salt, and an organic solvent having a heteroatom and satisfies Is>Io, when an intensity of an original peak of the solvent is represented as Io and an intensity of a peak resulting from shifting of the original peak is represented as Is. For the negative electrode, (1) a graphite whose G/D ratio of G-band and D-band peaks in a Raman spectrum is not lower than 3.5; (2) a carbon material whose crystallite size, calculated from a half width of a peak appearing at 2?=20 degrees to 30 degrees in a X-ray diffraction profile is not larger than 20 nm; (3) silicon element and/or tin element; (4) a metal oxide configured to occlude and release lithium ions; or (5) a graphite whose ratio (long axis/short axis) is 1 to 5.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: May 18, 2021
    Assignees: THE UNIVERSITY OF TOKYO, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Atsuo Yamada, Yuki Yamada, Yoshihiro Nakagaki, Tomoyuki Kawai, Yuki Hasegawa, Kohei Mase, Nobuhiro Goda
  • Method of producing electrode for electric storage devices, electrode for electric storage devices, and electric storage device
    Patent number: 10998545
    Abstract: Active material particles, a conductive material, a binder, and a solvent are mixed to prepare composite particles. The composite particles are mixed with metal short fibers to make the metal short fibers adhere to surfaces of the composite particles. After the adhesion of the metal short fibers, the composite particles are brought together and compacted to produce an electrode for electric storage devices. Each of the composite particles contains at least the active material particles, the conductive material, and the binder. The total content of the metal short fibers in the electrode for electric storage devices is not lower than 15 mass % and not higher than 35 mass %.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 4, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kunihiko Hayashi
  • Drawer-type battery pack
    Patent number: 10992008
    Abstract: A battery including a pack housing and a plurality of battery modules accommodated in the pack housing, the pack housing has first and second sides, the first and second sides having openings, and the openings of the first side correspond to respective openings of the second side, the pack housing has a plurality of guide grooves, and each battery module is accommodated into or removed from an inner space of the pack housing through a respective opening by sliding along the guide grooves.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: April 27, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Won Seo, Dal-Mo Kang, Jeong-O Mun, Yoon-Koo Lee, Ho-June Chi
  • Electrode having ion conduction channels
    Patent number: 10957896
    Abstract: An electrode including conduction channels includes at least one electrode layer layered onto a current collector, the electrode layer including a plurality of active material particles and a plurality of high aspect ratio components. The high aspect ratio components are configured to provide ion conduction channels through the electrode layer. In some examples, the electrode may include two or more electrode layers, at least one of which includes high aspect ratio components. In some examples, the high aspect ratio components may be oriented transverse to the current collector to provide ion transport through a first electrode layer to a second electrode layer.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 23, 2021
    Assignee: EnPower, Inc.
    Inventors: Jonathan Hwang, Adrian Yao
  • Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery including the same
    Patent number: 10950894
    Abstract: The present invention relates to a non-aqueous electrolyte solution which includes an ionizable lithium salt, an organic solvent, and a mixed additive, wherein the organic solvent comprises at least one cyclic carbonate-based organic solvent selected from the group consisting of ethylene carbonate, 1,2-butylene carbonate, 2,3-butylene carbonate, 1,2-pentylene carbonate, 2,3-pentylene carbonate, vinylene carbonate, and fluoroethylene carbonate, and at least one linear carbonate-based organic solvent selected from the group consisting of dimethyl carbonate, diethyl carbonate, dipropyl carbonate, ethylmethyl carbonate, methylpropyl carbonate, and ethylpropyl carbonate, the mixed additive includes vinylene carbonate, 1,3-propylene sulfate, and 1,3-propane sultone in a weight ratio of 1:1:1 to 1:0.5:0.2, and a total amount of the mixed additive is in a range of 1 to 4.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: March 16, 2021
    Inventors: Ha Eun Kim, Young Min Lim, Min Jung Kim, Chul Haeng Lee
  • Negative electrode active material having an intermediate layer and carbon coating layer, negative electrode including the same, and secondary battery including the negative electrode
    Patent number: 10950853
    Abstract: A negative electrode active material including a core having SiOx (0?x<2), an intermediate layer covering at least a portion of a surface of the core and including at least one of silicon nitride or silicon oxynitride, and a carbon coating layer covering at least a portion of the intermediate layer and containing nitrogen.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: March 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hyun Choi, Dong Hyuk Kim, Yong Ju Lee, Eun Kyung Kim, Rae Hwan Jo
  • Electrochemical cell with contaminant trap portion, and electrochemical device including same
    Patent number: 10938048
    Abstract: A fuel cell has an anode, a cathode active portion that exhibits oxygen ion conductivity and electron conductivity, a cathode current collecting portion that is disposed on the cathode active portion and that exhibits a higher electron conductivity than the cathode active portion, and a contaminant trap portion that is disposed on the cathode current collecting portion and exhibits oxygen ion conductivity and electron conductivity.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: March 2, 2021
    Inventors: Risako Ito, Makoto Ohmori