Patents Examined by Amanda C. Walke
  • Patent number: 10665839
    Abstract: The present invention relates to new, improved or modified polymer materials, membranes, substrates, and the like and to new, improved or modified methods for permanently modifying the physical and/or chemical nature of surfaces of the polymer substrate for a variety of end uses or applications. For example, one improved method uses a carbene and/or nitrene modifier to chemically modify a functionalized polymer to form a chemical species which can chemically react with the surface of a polymer substrate and alter its chemical reactivity. Such method may involve an insertion mechanism to modify the polymer substrate to increase or decrease its surface energy, polarity, hydrophilicity or hydrophobicity, oleophilicity or oleophobicity, and/or the like in order to improve the compatibility of the polymer substrate with, for example, coatings, materials, adjoining layers, and/or the like.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 26, 2020
    Assignee: Celgard, LLC
    Inventors: Kristoffer K. Stokes, Karl F. Humiston
  • Patent number: 10663861
    Abstract: The method for forming a resin cured film pattern according to the invention comprises a first step in which there is formed on a base material a photosensitive layer composed of a photosensitive resin composition comprising a binder polymer with a carboxyl group having an acid value of 75 mgKOH/g or greater, a photopolymerizable compound and a photopolymerization initiator, and having a thickness of 10 ?m or smaller, a second step in which prescribed sections of the photosensitive layer are cured by irradiation with active light rays, and a third step in which the sections of the photosensitive layer other than the prescribed sections are removed to form a cured film pattern of the prescribed sections of the photosensitive layer, wherein the photosensitive resin composition comprises an oxime ester compound and/or a phosphine oxide compound as the photopolymerization initiator.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: May 26, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yasuharu Murakami, Hiroshi Yamazaki, Yoshimi Igarashi, Naoki Sasahara, Ikuo Mukai
  • Patent number: 10665871
    Abstract: The invention relates to a fuel cell stack having bipolar plates (10), each of which has two separator plates (12, 14) with an active region (16) and two distribution regions (18, 20) with main gas ports (22, 24) as well as a coolant main port (26), wherein the separator plates (12, 14) are formed and arranged one over the other in such a way that the respective bipolar plate (10) has separate channels (28, 30, 32) for the reaction gases and the coolant that connect the main gas port (22, 24) for the reaction gases and the coolant main port (26) of the two distribution region (18, 20) to each other. It is provided that the channels (28) for a reaction gas have an impermeable first dividing plate (38) in an inlet area (40) of the active area (16) that separates the channels (28) into two volume areas (58, 60), and in that a second main gas port (23) is provided adjacent to the first main gas port (22) in a distribution region (18) in order to supply the reaction gas.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: May 26, 2020
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventors: Hannes Scholz, Jan-Philipp Brinkmeier, Daniel Grundei, Christian Lucas, Christian Schlitzberger
  • Patent number: 10665859
    Abstract: The present invention provides a negative electrode active material for a secondary battery, the negative electrode active material including a core that includes a lithium titanium oxide and a surface treatment layer located on a surface of the core, wherein the surface treatment layer includes a boron-containing lithium oxide at an amount that allows a boron content to have a molar ratio of 0.002 to 0.02 with respect to 1 mole of the lithium titanium oxide, and when 2 g of the negative electrode active material is titrated at pH 5 or lower using 0.1 M HCl, a titrated amount is 0.9 to 1.5 ml, and a secondary battery including the same. The negative electrode active material exhibits an excellent capacity recovery rate and an output characteristic when applied to a battery and is capable of reducing gas generation by preventing electrolyte decomposition.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: May 26, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sung Bin Park, Dong Hun Lee, Hye Lim Jeon, Wang Mo Jung, Seong Hoon Kang
  • Patent number: 10658682
    Abstract: A fuel cell stack FS includes: a stack A that includes a single cells C that are stacked, each of the single cells including a frame 2 that holds an outer periphery of a membrane electrode assembly 1 and a pair of separators 3, 4 sandwiching the membrane electrode assembly 1 and the frame 2; and a case 50 that houses the stack A. The frame 2 comprises a protrusion 11 that protrudes outward from an outer periphery of a frame body 2A beyond an outer peripheral edge of the pair of separators 3, 4. A protrusion length of the protrusion 11 is greater than at least a gap between the frame 2 and one of the pair of separators 3, 4, and the protrusion 11 is bendable with respect to the frame body 2A. The protrusions prevent a contact between the separators 3, 4 of the single cell C and a contact between the end faces of the separators 3, 4 and the case 50 so as to prevent a short circuit of the single cell C.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 19, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kazuhiro Kageyama, Kazuyuki Sato
  • Patent number: 10658639
    Abstract: A polyolefin microporous membrane has excellent strength, permeability and heat resistance, which is obtained by using UHMwPE and employing a sequential stretching system, and a production method of the microporous membrane. In producing a microporous membrane by using a primary material A having a molecular weight (Mw) of less than 1.0×106, a secondary material B having a molecular weight of 1.0×106 or more, and a plasticizer, when the endothermic quantity of a mixture of the primary material and the plasticizer and the endothermic quantity of a mixture of the secondary material and the plasticizer are denoted as Q1 and Q2, respectively, respective resins are designed such that the ratio of endothermic quantity Q2 to endothermic quantity Q1 (endothermic quantity Q2/endothermic quantity Q1) becomes 1 or more over a temperature range of 110 to 118° C.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 19, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Naoki Toyota, Mayumi Yoshida
  • Patent number: 10651504
    Abstract: Additives to electrolytes that enable the formation of comparatively more robust SEI films on silicon anodes. The SEI films in these embodiments are seen to be more robust in part because the batteries containing these materials have higher coulombic efficiency and longer cycle life than comparable batteries without such additives.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: May 12, 2020
    Assignee: Wildcat Discovery Technologies, Inc.
    Inventors: Gang Cheng, Deidre Strand, Ye Zhu, Marissa Caldwell
  • Patent number: 10651512
    Abstract: Provided is an alkali metal-sulfur cell comprising: (a) a quasi-solid cathode containing about 30% to about 95% by volume of a cathode active material (a sulfur-containing material), about 5% to about 40% by volume of a first electrolyte containing an alkali salt dissolved in a solvent (but no ion-conducting polymer dissolved therein), and about 0.01% to about 30% by volume of a conductive additive wherein the conductive additive, containing conductive filaments, forms a 3D network of electron-conducting pathways such that the quasi-solid electrode has an electrical conductivity from about 10?6 S/cm to about 300 S/cm; (b) an anode; and (c) an ion-conducting membrane or porous separator disposed between the anode and the quasi-solid cathode; wherein the quasi-solid cathode has a thickness from 200 ?m to 100 cm and a cathode active material having an active material mass loading greater than 10 mg/cm2.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 12, 2020
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 10637051
    Abstract: Provided are a negative electrode active material for a lithium secondary battery and a method of preparing the same, wherein since the negative electrode active material includes porous polycrystalline silicon and the porous polycrystalline silicon includes pores disposed at grain boundaries, the negative electrode active material may exhibit a buffering action by internally absorbing changes in volume of the active material during charge and discharge. As a result, lifetime characteristics of a negative electrode and a battery may be improved.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: April 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Rae Hwan Jo, Ju Ho Chung, Eun Kyung Kim, Yong Ju Lee, Seung Youn Choi, Hyun Chul Kim, Jung Hyun Choi
  • Patent number: 10637034
    Abstract: Battery pack includes: a plurality of chargeable/dischargeable cylindrical cells; battery holder in which the plurality of cylindrical cells are disposed; and thermally conductive resin that closely adheres to cylindrical cells, which are stored in battery holder, in a thermally coupled state above battery holder. Battery holder includes: bottom plate including a plurality of holding grooves in which cylindrical cells are disposed; and partition walls that are disposed between holding grooves and between adjacent cylindrical cells. Partition walls are lower than the diameter of cylindrical cells disposed in holding grooves, thermally conductive resin is disposed between adjacent cylindrical cells above partition walls, and thermally conductive resin interconnects adjacent cylindrical cells.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: April 28, 2020
    Assignee: SANYO ELECTRIC CO., LTD.
    Inventors: Kensaku Takeda, Masaya Nakano, Osamu Inaoka, Hidemi Kurihara, Haruhiko Yoneda
  • Patent number: 10637069
    Abstract: The purpose of the present invention is to provide a carbon sheet that is suitably employed in a gas-diffusion-electrode substrate that has excellent flooding resistance and with which it is possible to suppress internal peeling of the carbon sheet. In order to achieve the aforementioned purpose, the present invention has the following configuration.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: April 28, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Katsuya Sode, Toru Sugahara, Takashi Ando
  • Patent number: 10637045
    Abstract: A composite electrode is provided having a collector, the collector is coated with an electrode composition containing an active electrode material, a binding agent, and a conductivity additive such as conductive carbon black. The electrode composition has a concentration gradient along the direction of the electrode thickness in respect of the active electrode material and the conductivity additive, with the concentration gradient of the active electrode material increasing toward the collector, and the concentration gradient of the conductivity additive and the binder decreasing toward the collector. Two different methods of producing the composite electrode are also provided. A lithium-ion battery is further provided which includes a composite electrode having a collector, the collector is coated with an electrode composition containing an active electrode material, a binding agent, and a conductivity additive.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: April 28, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Thomas Woehrle, Matthias Tschech, Thomas Hoefler, Sung-Jin Kim, Sebastian Scharner, Jens Vetter, Jan-Oliver Roth, Tobias Zeilinger, Matthias Wagner
  • Patent number: 10637065
    Abstract: The present disclosure provides a lithium battery and a cathode foil thereof. The cathode foil includes a base material layer, a first material layer formed on the base material layer, and a second material layer including a plurality of particle structure groups disposed inside the first material layer. Each of the particle structure groups includes a plurality of particle structures connected with each other. One of the first material layer and the second material layer is formed by a pure silicon material without impurities, and another one of the first material layer and the second material layer is formed by a pure carbon material without impurities. Therefore, the structural strength and the ion transmission efficiency of the lithium battery with the cathode foil can be increased in virtue of the particle structures that are connected with each other.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: April 28, 2020
    Assignee: APAQ TECHNOLOGY CO., LTD.
    Inventor: Ming-Goo Chien
  • Patent number: 10637063
    Abstract: A binder composition for a non-aqueous secondary battery porous membrane comprises: a polymer; and an organic solvent, wherein a boiling point of the organic solvent is 30° C. or more and 100° C. or less, and an absolute difference |SPdiff|=|SPp?SPs| between a solubility parameter SPp of the polymer and a solubility parameter SPs of the organic solvent is 1.5 or more and 6.0 or less.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 28, 2020
    Assignee: ZEON CORPORATION
    Inventor: Junnosuke Akiike
  • Patent number: 10637012
    Abstract: Disclosed herein is a battery cell including a battery case, wherein the battery case includes thermally bondable portions thermally bonded to each other to constitute a first sealed portion of the battery cell, a first space for receiving an electrode assembly, and second spaces defined outside the thermally bondable portions, the second spaces constituting the outer edges of the battery case together with the thermally bondable portions, and wherein a metal piece for preventing the penetration of humidity into the first space from the outside is mounted in at least one of the second spaces.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: April 28, 2020
    Assignee: LG Chem, Ltd.
    Inventor: Seong Min Kim
  • Patent number: 10629952
    Abstract: According to one embodiment, a nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a titanium and niobium-containing composite oxide. The nonaqueous electrolyte includes at least one compound selected from compounds represented by the formulas (1) and (2).
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: April 21, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Kishi, Takuya Iwasaki, Hiroki Iwanaga, Jun Tamura
  • Patent number: 10622671
    Abstract: Solid polymer electrolytes (SPEs) with tunable network structures are prepared by a facile one-pot reaction of polyhedral oligomeric silsesquioxane (POSS) and poly(ethylene glycol) (PEG). These SPEs with high conductivity and high modulus exhibit superior lithium dendrite growth resistance even at high current densities. Measurements of lithium metal batteries with a LiFePO4 cathode show excellent cycling stability and rate capability. Also disclosed are products made by the process of the invention and batteries including such products.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: April 14, 2020
    Assignee: Drexel University
    Inventors: Qiwei Pan, Christopher Li
  • Patent number: 10610906
    Abstract: The present invention provides a method for manufacturing a resist composition which is used in a manufacturing process of a semiconductor apparatus, comprising the steps of: cleaning a manufacturing apparatus for the resist composition with a cleaning solution; analyzing the cleaning solution taken out from the manufacturing apparatus; repeating the step of cleaning and the step of analyzing until a concentration of a nonvolatile component(s) contained in the cleaning solution became 10 ppm or less; and manufacturing the resist composition by using the manufacturing apparatus after the step of repeating. There can be provided a method for manufacturing a resist composition which can manufacture a resist composition lowered in coating defects.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: April 7, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Motoaki Iwabuchi, Tsutomu Ogihara, Yukio Hoshi, Yusuke Biyajima
  • Patent number: 10615425
    Abstract: Disclosed is a tin oxide containing antimony and at least one element A selected from the group consisting of tantalum, tungsten, niobium, and bismuth. The antimony and the at least one element A selected from the group consisting of tantalum, tungsten, niobium, and bismuth are preferably dissolved in a solid state in tin oxide. The ratio of the number of moles of the element A to the number of moles of antimony, i.e., [(the number of moles of the element A/the number of moles of antimony)], is preferably 0.1 to 10.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 7, 2020
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Koichi Miyake, Susumu Takahashi, Hiromu Watanbe, Naohiko Abe, Ryoma Tsukuda, Kenichi Amitani, Koji Taniguchi, Hiroki Takahashi, Yoshihiro Yoneda, Kazuhiko Kato
  • Patent number: 10615450
    Abstract: The present invention provides an electrolyte solution for a lithium secondary battery including an additive, which may prevent a chemical reaction between the electrolyte solution and an electrode by forming a stable solid electrolyte interface (SEI) and a protection layer on the surface of the electrode, and a lithium secondary battery in which life characteristics and high-temperature stability are improved by including the same.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: April 7, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Kyoung Ho Ahn, Yu Ra Jeong, Chul Haeng Lee, Young Min Lim, Jeong Woo Oh, Jung Hoon Lee