Having Defined Porosity Either Functional Or By Size (i.e., Semipermeable, Permselective, Ionpermeable, Microporous, Etc.) Patents (Class 429/145)
  • Patent number: 11936066
    Abstract: Lithium ion-exchanged zeolite particles and methods of making such lithium ion-exchanged zeolite particles are provided herein. The method includes combining precursor zeolite particles with (NH4)3PO4 to form a first mixture including intermediate zeolite particles including NH4+ cations. The method further includes adding a lithium salt to the first mixture to form the lithium ion-exchanged zeolite particles, or separating the intermediate zeolite particle from the first mixture and combining the intermediate zeolite particles with the lithium salt to form the lithium ion-exchanged zeolite particles.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: March 19, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xingcheng Xiao, Mei Cai
  • Patent number: 11888178
    Abstract: The present invention provides a method for manufacturing a battery cell component including providing a current collector foil and placing separators onto the current collector foil at spaced intervals. A battery cell component, battery and electric or hybrid vehicle is also provided.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: January 30, 2024
    Assignees: Volkswagen AG, Audi AG, Dr. Ing. h.c. F. Porsche AG
    Inventors: Mirko Herrmann, Angela Speidel
  • Patent number: 11850837
    Abstract: There is provided a functional layer including layered double hydroxide. The functional has an average porosity of 1 to 40% and an average pore diameter of 100 nm or less.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: December 26, 2023
    Assignee: NGK INSULATORS, LTD.
    Inventors: Sho Yamamoto, Megumi Fujisaki, Shohei Yokoyama
  • Patent number: 11843091
    Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator, the separator including a porous substrate; and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes organic filler particles, fluorine organic binder particles, and (meth)acryl organic binder particles, an average particle diameter of the organic filler particles is equal to or greater than an average particle diameter of the fluorine organic binder particles, and the fluorine organic binder particles are coated on the porous substrate as a part of the coating layer in an amount of less than about 0.1 g/m2 per surface.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: December 12, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Gain Kim, Yongkyoung Kim, Yangseob Kim, Jungyoon Lee
  • Patent number: 11728546
    Abstract: Several embodiments of a microporous battery separator for lithium rechargeable batteries and/or related methods of making and/or using such separators are disclosed. A dry process battery separator or membrane separator exhibits a thickness that is less than about 14 ?m and has increased strength performance as defined by reduced splittiness. The mode of splitting failure has been investigated, and the improvement in splittiness quantified by a test method known as the Composite Splittiness Index (CSI).
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: August 15, 2023
    Assignee: Celgard, LLC
    Inventors: Xiaomin Zhang, Kang Karen Xiao, Robert A. Nark, Ron E. Smith
  • Patent number: 11594784
    Abstract: An electrode including an integrated fibrous separator may include an active material layer layered onto a current collector substrate, and an integrated separator layer comprising a mixture of ceramic particles and fibers layered onto the active material layer. The fibers may be oriented substantially horizontally, and may be configured to increase a lateral strength of the electrode. In some examples, the electrode includes two or more active material layers disposed between the integrated separator layer and the current collector substrate. In some examples, the electrode includes an interlocking region disposed between the active material layer and the integrated separator layer.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: February 28, 2023
    Assignee: EnPower, Inc.
    Inventors: Raymundo Roig, Adrian Yao
  • Patent number: 11594785
    Abstract: The present invention provides a nonaqueous electrolyte secondary battery porous layer which improves an initial battery characteristic immediately after initial charge and discharge of a nonaqueous electrolyte secondary battery. In the nonaqueous electrolyte secondary battery porous layer in accordance with an aspect of the present invention, a standard deviation of bursting strength is 0.6 or more and 11.0 or less.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: February 28, 2023
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Shizuka Iwata
  • Patent number: 11584861
    Abstract: A separator for a rechargeable battery includes a porous substrate and a heat resistance layer on at least one surface of the porous substrate. The heat resistance layer includes an acryl-based copolymer, an alkali metal, and a filler. The acryl-based copolymer includes a unit derived from (meth)acrylate or (meth)acrylic acid, a cyano group-containing unit, and a sulfonate group-containing unit.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: February 21, 2023
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Dongwan Seo, Changhong Ko, YangSeob Kim, Yongkyoung Kim, Sam-Jin Park, Jinkyu Park
  • Patent number: 11557814
    Abstract: Disclosed are a separator that includes fibrils including a polyolefin; and bond structures generated by reacting at least some of a first radical formed on surfaces of the fibrils by a photoreactive material and a second radical formed in the photoreactive material, and a method of manufacturing the separator.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: January 17, 2023
    Assignees: W-SCOPE KOREA CO., LTD., W-SCOPE CHUNGJU PLANT CO., LTD.
    Inventors: Byung Hyun Kim, Hee Min Cho, Pyung Yong Park, Gi Won Yoo, Yeong Hoon Choi, Won Keun Choi
  • Patent number: 11535763
    Abstract: A separator for a rechargeable battery includes a porous substrate and a heat resistance layer on at least one surface of the porous substrate. The heat resistance layer includes an acryl-based copolymer, an alkali metal, and a filler. The acryl-based copolymer includes a unit derived from (meth)acrylate or (meth)acrylic acid, a cyano group-containing unit, and a sulfonate group-containing unit.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: December 27, 2022
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Dongwan Seo, Changhong Ko, YangSeob Kim, Yongkyoung Kim, Sam-Jin Park, Jinkyu Park
  • Patent number: 11532854
    Abstract: A ceramic-coated battery separator having a microporous polyolefin membrane and a ceramic coating on at least one surface of the microporous polyolefin membrane, wherein the ceramic-coated separator exhibits a strain shrinkage of 0% at temperatures greater than or equal to 120 degrees Celsius is provided.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: December 20, 2022
    Assignee: Celgard, LLC
    Inventors: Zhengming Zhang, Xuefa Li, Lie Shi, Premanand Ramadass, Paul M. Halmo, Xiaomin Zhang
  • Patent number: 11522251
    Abstract: A separator in which at least one surface of a porous base is coated with a coating layer including partially-reduced graphene oxide and a lithium ion conducting polymer, and thereby capable of resolving problems caused by lithium polysulfide occurring in a lithium secondary battery, and a lithium secondary battery including the same.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: December 6, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jieun Song, Kwonnam Sohn, Doo Kyung Yang
  • Patent number: 11495865
    Abstract: Described herein is a multilayer microporous film or membrane that may exhibit improved properties, including improved dielectric break down and strength, compared to prior monolayer or tri-layer microporous membranes of the same thickness. The preferred multilayer microporous membrane comprises microlayers and one or more lamination barriers. Also disclosed is a battery separator or battery comprising one or more of the multilayer microporous films or membranes. The inventive battery and battery separator is preferably safer and more robust than batteries and battery separators using prior monolayer and tri-layer microporous membranes. Also, described herein is a method for making the multilayer microporous separators, membranes or films described herein.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: November 8, 2022
    Assignee: Celgard, LLC
    Inventors: Kang Karen Xiao, Eric J. Penegar, Takahiko Kondo, Robert Nark, Eric R. White, Xiaomin Zhang, Kristoffer K. Stokes, Stefan Reinartz, Masaaki Okada
  • Patent number: 11489233
    Abstract: A purpose of the present disclosure is to provide nonaqueous electrolyte battery inorganic particles that enable provision of a nonaqueous electrolyte battery having excellent properties of safety and service life. Another purpose of the present disclosure is to provide an efficient and effective method for inspecting the metal absorption ability of nonaqueous electrolyte battery inorganic particles.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: November 1, 2022
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Nobuhiro Ito, Hiroyuki Saeki
  • Patent number: 11398660
    Abstract: A flame retardant separator for secondary batteries having an asymmetric structure, and more particularly, a flame retardant separator for secondary batteries having an asymmetric structure in which a hydroxide-based inorganic flame retardant is coated on only a surface facing a positive electrode. The present invention provides a separator, which is capable of preventing the risk of lithium ions predominantly precipitated from a negative electrode in a lithium secondary battery, enhancing the flame retardant effect, and maintaining electrochemical properties in contrast with a conventional separator coated with inorganic matters, and a lithium secondary battery including the same.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: July 26, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Min Ji Kim, Kwan Woo Nam, Je An Lee, Young Bok Kim
  • Patent number: 11362399
    Abstract: According to the present invention, a microporous membrane contains a polyolefin resin and inorganic particles; the primary particle diameter of the inorganic particles is 100 nm or less; the content of the inorganic particles is 10-60% by mass or 10% by mass or more but less than 40% by mass based on the mass of the microporous membrane; and the retention time at 150° C. is less than 200 seconds or the retention time at 145° C. is more than 1 second but less than 300 seconds in the thermal behavior evaluation of the microporous membrane.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 14, 2022
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Yuki Fukunaga, Manabu Sekiguchi
  • Patent number: 11355817
    Abstract: Provided is a lithium battery, wherein the battery comprises an anode, a cathode, wherein the cathode comprises one or more transition metals, an electrolyte, and a porous separator interposed between the cathode and anode, wherein the separator comprises an anionic compound. Also provided are methods of manufacturing such batteries.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: June 7, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Steven A. Carlson, Benjamin Sloan, David W. Avison
  • Patent number: 11329349
    Abstract: A polyolefin micro porous film includes at least one of polyethylene and polypropylene, in which the compressive elastic modulus is 95 MPa or more and 150 MPa or less, the surface roughness (Ra) of a film surface is measured for a front surface and a rear surface, and the average value (Ra(ave)) thereof is 0.01 ?m to 0.30 ?m.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: May 10, 2022
    Assignee: Ube Industries, Ltd.
    Inventors: Ryo Sakimoto, Kenji Kawabata, Hiroki Nagumo, Taiga Adachi
  • Patent number: 11312871
    Abstract: The present invention relates to a separator for a secondary battery and a lithium secondary battery including the separator, the separator including: a porous substrate and a heat-resistant layer disposed on at least one surface of the porous substrate, wherein the heat-resistant layer includes an acrylic heat-resistant binder, an adhering binder, and a filler, the acrylic heat-resistant binder including a structural unit derived from (meth)acrylate or (meth)acrylic acid, a cyano group-containing structural unit, and a sulfonate group-containing structural unit, the adhering binder includes a structural unit including a structural unit including hydroxyl group, a structural unit including an acetate group, and a structural unit including an alkali metal.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: April 26, 2022
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Changhong Ko, Dongwan Seo, Hyeonsun Choi, Ickkyu Choi, Jungjoon Park, Jinkyu Park, Sam-Jin Park, Yangseob Kim
  • Patent number: 11289731
    Abstract: Provided is a lithium secondary battery containing an anode, a cathode, a porous separator/electrolyte element disposed between the anode and the cathode, and a cathode-protecting layer bonded or adhered to the cathode, wherein the cathode-protecting layer comprises a lithium ion-conducting polymer matrix or binder and inorganic material particles that are dispersed in or chemically bonded by the polymer matrix or binder and wherein the cathode-protecting layer has a thickness from 10 nm to 100 ?m and the polymer matrix or binder has a lithium-ion conductivity from 10?8 S/cm to 5×10?2 S/cm. Additionally or alternatively, there can be a similarly configured anode-protecting layer adhered to the anode. Such an electrode-protecting layer prevents massive internal shorting from occurring even when the porous separator gets melted, contracted, or collapsed under extreme temperature conditions induced by, for instance, dendrite or nail penetration.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 29, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Hui He, Yu-Sheng Su, Aruna Zhamu, Bor Z. Jang
  • Patent number: 11289769
    Abstract: Cell stacks are presented that include binders for wet and dry lamination processes. The cell stacks, when laminated, produce battery cells (or portions thereof). The cell stacks include a cathode having a cathode active material disposed on a cathode current collector. The cell stacks also include an anode having an anode active material disposed on an anode current collector. The anode is oriented towards the cathode such that the anode active material faces the cathode active material. A separator is disposed between the cathode active material and the anode active material and comprising a binder comprising a PVdF-HFP copolymer. In certain instances, an electrolyte fluid is in contact with the separator. Methods of laminating the cell stacks are also presented.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: March 29, 2022
    Assignee: Apple Inc.
    Inventors: Mikyong Yoo, Richard M. Mank, Bookeun Oh
  • Patent number: 11239529
    Abstract: A desired drying capability is achieved while damage to a film is prevented. A film production method is arranged such that: a production process including a drying step is operated by setting a drying condition, under which to carry out the drying step, for each of at least two periods, the two periods being a first period and a second period later than the first period; the drying condition is changed in at least a part of the first period so as to be enhanced with time; and the drying condition is maintained in the second period so as to be substantially fixed.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: February 1, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Akihiko Shin, Yuji Takaoka, Atsushi Nakazawa, Hideyuki Sasaki
  • Patent number: 11239530
    Abstract: A method suppresses membrane thickness variation and air resistance variation after a compression at 60° C. or 80° C. Stretching is performed at least twice in at least different axial directions before the extraction of the solvent, and at the same time, at least one of (i) and (ii) is satisfied. (i) The step (c) is a first stretching step of stretching the sheet-shaped product at least once in a sheet transport direction (MD direction) and at least once in a sheet width direction (TD direction) individually, and the MD stretching magnification and the TD stretching magnification in the step (c) satisfy (TD stretching magnification?MD stretching magnification?2). (ii) The stretching temperature (T1) of a first axial stretching performed firstly in the step (c) and the maximal stretching temperature (T2) of a second stretching performed after the first axial stretching satisfy (T1?T2?0).
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 1, 2022
    Assignee: Toray Industries, Inc.
    Inventor: Takeshi Ishihara
  • Patent number: 11223090
    Abstract: The disclosure provides a polymer composite membrane, a method for preparing same, and a lithium-ion battery including same. The polymer composite membrane includes a polymer base membrane, where the polymer base membrane includes a first surface and a second surface disposed opposite to each other, and the polymer composite membrane further includes a first ceramic layer, a first heat-resistant fiber layer, and a first bonding layer disposed sequentially from inside out on the first surface of the polymer base membrane, where materials of the first heat-resistant fiber layer contain a first polymeric material and a second polymeric material.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: January 11, 2022
    Assignee: BYD COMPANY LIMITED
    Inventors: Jialing Hu, Jun Shan, Gang Hu, Long He
  • Patent number: 11218003
    Abstract: An intelligent battery charge equalization and monitoring system may assist in the management of battery string health by detecting individual batteries within a string that may need servicing. The system may detect a battery within a string that is charged to a higher voltage than other batteries within the string and discharge the overcharged battery until the battery's charge is equalized with the other batteries in the string. The system may use metrics related to how often individual batteries within a string of batteries must be equalized and utilize these metrics to perform maintenance actions.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: January 4, 2022
    Assignee: PHOENIX BROADBAND TECHNOLOGIES, LLC
    Inventors: Joseph D. Rocci, Michael L. Quelly
  • Patent number: 11217860
    Abstract: A modified ceramic composite separator includes an organic support layer and a ceramic layer coated on the surface of the support layer in a thickness of 0.1 ?m to 20 ?m, and further comprises a dopamine or other polymer grown in-situ on the surface and interior of the support layer and the ceramic layer. The inorganic power in the ceramic layer has a particle size of 5 nm to 10 ?m, and the material of the organic support layer has a molecular weight of 1000 to 100000000.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: January 4, 2022
    Assignee: XIAMEN UNIVERSITY
    Inventors: Jinbao Zhao, Peng Zhang, Chuan Shi, Jianhui Dai
  • Patent number: 11201324
    Abstract: Methods and systems for producing lithium metal through room temperature electrodeposition.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: December 14, 2021
    Assignee: UChicago Argonne, LLC
    Inventors: John N. Hryn, Patricia Ignacio-de Leon, Jeffrey S. Spangenberger
  • Patent number: 11183734
    Abstract: A microporous membrane has average membrane thickness of 15 ?m or less, and relative impedance A after a heat compression treatment under a pressure of 4.0 MPa at 80° C. for 10 minutes of 140% or less, the relative impedance A being obtained by the equation below: Relative impedance A=(impedance measured at 80° C. after the heat compression treatment)/(impedance measured at room temperature prior to the heat compression treatment)×100.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: November 23, 2021
    Assignee: Toray Industries, Inc.
    Inventor: Takeshi Ishihara
  • Patent number: 11171351
    Abstract: An electrolyte of a solid oxide cell is required to be capable of suppressing both gas cross-leak and electron leak. In addition, it is important from the viewpoint of a reduction in material costs and in the electric resistance of the electrolyte that the electrolyte is made into a thin film and that no expensive noble metal is used. The present invention provides a thin-film-shaped proton conducting electrolyte capable of suppressing both gas cross-leak and electron leak, a solid oxide cell using the proton conducting electrolyte, and a manufacturing method for the proton conducting electrolyte and the solid oxide cell. A proton conducting electrolyte using an oxide material having proton conductivity is provided. The proton conducting electrolyte includes a first portion containing Me (Me=at least any one of Ti, Mn, Fe, Co, Ni, and Cu), and a second portion different in Me content from the first portion.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: November 9, 2021
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hiroyuki Shimada, Toshiaki Yamaguchi
  • Patent number: 11158904
    Abstract: A purpose of the present disclosure is to provide nonaqueous electrolyte battery inorganic particles that enable provision of a nonaqueous electrolyte battery having excellent properties of safety and service life. Another purpose of the present disclosure is to provide an efficient and effective method for inspecting the metal absorption ability of nonaqueous electrolyte battery inorganic particles.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: October 26, 2021
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Nobuhiro Ito, Hiroyuki Saeki
  • Patent number: 11145934
    Abstract: Disclosed herein are novel or improved fibrous layers, composites, composite separators, separators, composite mat separators, composite mat separators containing fibers and silica particles, battery separators, lead acid battery separators, and/or flooded lead acid battery separators, and/or batteries, cells, and/or methods of manufacture and/or use of such fibrous layers, composites, composite separators, separators, battery separators, lead acid battery separators, cells, and/or batteries. In addition, disclosed herein are methods, systems, and battery separators for enhancing battery life, reducing internal resistance, reducing metalloid poisoning, reducing acid stratification, and/or improving uniformity in at least enhanced flooded batteries.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: October 12, 2021
    Assignee: Daramic, LLC
    Inventors: Ahila Krishnamoorthy, Kumar Manickam, Robert Saffel
  • Patent number: 11121431
    Abstract: The present invention provides, as a separator having both a sufficient level of safety and sufficient strength, a nonaqueous electrolyte secondary battery separator including a polyolefin porous film, the nonaqueous electrolyte secondary battery separator being arranged such that in regard to a surface of the nonaqueous electrolyte secondary battery separator, a product obtained by multiplying (a) a difference between a surface roughness in a machine direction obtained by a contact measurement and a surface roughness in the machine direction obtained by a non-contact measurement by (b) a difference between a surface roughness in a transverse direction obtained by a contact measurement and a surface roughness in the transverse direction obtained by a non-contact measurement is not less than 0.0020 and not more than 0.0280.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: September 14, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Saki Morizane
  • Patent number: 11081760
    Abstract: The present invention pertains to an at least partially coated separator for an electrochemical cell, to a method for its preparation and to an electrochemical cell comprising such separator.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: August 3, 2021
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Maurizio Biso, Elena Molena, Roberta Colombo
  • Patent number: 11056751
    Abstract: According to one embodiment, a laminate includes a first active material-containing layer, a first film and a second film. The first film includes an inorganic material, and a back surface thereof is in contact with a front surface of the first active material-containing layer. The second film includes organic fibers, and one of front and back surfaces is in contact with a front surface of the first film. An absolute value of a difference between surface roughness Ra1 of the front surface of the first active material-containing layer and surface roughness Ra2 of the back surface of the first film is 0.6 ?m or less (including 0).
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: July 6, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ikuo Uematsu, Yuma Kikuchi, Tomomichi Naka
  • Patent number: 11024880
    Abstract: Disclose are an electrolyte composite for a lithium secondary battery having an improved output; a cathode including a protective film on its surface; and a lithium secondary battery comprising the same.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 1, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yoon Sung Lee, KiSeok Koh, Jung Young Cho, Ikkyu Kim, Yeolmae Yeo, Seung-Min Oh, Sa Heum Kim, Sungmin Choi
  • Patent number: 10985356
    Abstract: The present invention relates to a composite separation membrane for a lithium secondary battery, having an excellent effect of improving the life time and safety of a battery and a lithium secondary battery including the membrane. The composite separation membrane includes a porous base layer; a heat-resistant layer formed on one side or both sides of the porous base layer; and a fusion layer formed on an outermost layer. The heat-resistant layer includes inorganic particles connected and fixed by binder polymers, and the fusion layer includes crystalline polymers in the form of particles having a melting temperature of 100° C. or higher.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 20, 2021
    Assignees: SK Innovation Co., Ltd., SK IE Technology Co., Ltd.
    Inventors: Dong Jin Joo, Su Ji Lee, Kyu Young Cho, Yun Bong Kim, Jae Woong Kim
  • Patent number: 10950914
    Abstract: A porous film includes a porous substrate, and a porous layer provided on at least one surface of the porous substrate. The porous layer includes the following resin A and resin B, and satisfies that ?/? is less than 1.0, where ? is a surface opening ratio of the porous layer and ? is a cross-sectional porosity of the porous layer. The resin A is a resin having a melting point of 150° C. or higher, or a resin having no substantial melting point. The resin B is a resin having a melting point of lower than 150° C., or an amorphous resin.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: March 16, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Nobuyasu Kai, Kei Ikoma, Akimitsu Tsukuda
  • Patent number: 10903467
    Abstract: A separator for a rechargeable lithium battery includes a porous layer; an inorganic layer including inorganic particles and formed on at least one surface of the porous layer; and a resin layer formed on the inorganic layer, wherein the resin of the resin layer penetrates between the inorganic particles on the surface of the inorganic layer, and the inorganic layer is integrated with the resin layer. A rechargeable lithium battery including the same is also provided.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: January 26, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Atsushi Kajita
  • Patent number: 10903487
    Abstract: An electrochemical cell includes a metal containing anode M? capturing and releasing cations, a metal containing cathode M? and an electrolyte including an anion X? and a cation M?+. During the charge process, the electrolyte allows reversible reactions wherein the anion dissociates from the electrolyte and reacts with the metal cathode forming M?Xy. At the same time, cations M?+ from the electrolyte deposit on the anode side. The reverse process happens during the discharge process.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: January 26, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Ruigang Zhang, Chen Ling, Fuminori Mizuno
  • Patent number: 10886517
    Abstract: Electrified vehicles such as hybrid electric vehicles (HEV's), plug-in hybrid electric vehicles (PHEV's), battery electric vehicles (BEV's), or fuel cell vehicles differ from conventional motor vehicles in that they are powered by one or more electric machines (i.e., electric motors and/or generators) instead of or in addition to an internal combustion engine. High voltage current for powering these types of electric machines is typically supplied by a high voltage traction battery system having one or more battery cells that store energy.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: January 5, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Giriraj Srinivasan, Patrick Daniel Maguire
  • Patent number: 10811659
    Abstract: An object is to provide a separator excellent in adhesiveness to electrodes and a separator for an electricity storage device also excellent in handling performance. A separator for an electricity storage device having a polyolefin microporous film and a thermoplastic polymer coating layer covering at least a part of at least one of surfaces of the polyolefin microporous film, in which the thermoplastic polymer coating layer, on the polyolefin microporous film, has a portion containing a thermoplastic polymer and a portion not containing the thermoplastic polymer in a sea-island configuration, the thermoplastic polymer coating layer contains the thermoplastic polymer having at least two glass-transition temperatures, at least one of the glass-transition temperatures is in a range of less than 20° C. and at least one of the glass-transition temperatures is in a range of 20° C. or more.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: October 20, 2020
    Assignee: Asahi Kasei E-materials Corporation
    Inventors: Hiroshi Miyazawa, Keitaro Ameyama, Takashi Shuto
  • Patent number: 10811657
    Abstract: There is provided a separator for a non-aqueous secondary battery, containing a porous substrate, and an adhesive porous layer that is provided on one side or both sides of the porous substrate, in which the adhesive porous layer contains a polyvinylidene fluoride type resin A including a vinylidene fluoride monomer unit and a hexafluoropropylene monomer unit, and a polyvinylidene fluoride type resin B including a vinylidene fluoride monomer unit and a hexafluoropropylene monomer unit, a proportion of the hexafluoropropylene monomer unit in the polyvinylidene fluoride type resin A is more than 1.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: October 20, 2020
    Assignee: TEIJIN LIMITED
    Inventors: Susumu Honda, Satoshi Nishikawa, Takashi Yoshitomi
  • Patent number: 10784482
    Abstract: A polyolefin microporous membrane is suitable to provide thereon a porous layer having little variation in thickness, which has a fluctuation range of F25 value in the length direction of 1 MPa or less, and which has a length of 1,000 m or more (wherein the F25 value refers to a value obtained by: measuring a load value applied to a test specimen when the test specimen is stretched by 25% using a tensile tester; and dividing the load value by the value of the cross-sectional area of the test specimen).
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: September 22, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Naoki Mizuno, Masami Sugata
  • Patent number: 10777801
    Abstract: The present disclosure relates to a composite separator for an electrochemical element and the electrochemical element including the same. More specifically, the present disclosure relates to a separator with excellent durability and improved formation of a bonding layer of a thin film and improved bonding force with an electrode, and a method for manufacturing the same. Further, the present disclosure pertains to an electrochemical element comprising the aforementioned separator.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: September 15, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jin-Young Shin, Young-Deok Kim, Su-Jin Yoon
  • Patent number: 10770704
    Abstract: Improved battery separators, batteries, and systems, as well as methods relating thereto are disclosed herein for use in various lead acid batteries such as valve-regulated lead acid (VRLA) batteries that include one or more AGM layers. The improved battery separators described herein may provide a battery system with an advantage of a significantly decreased acid filling time and a significantly increased acid filling speed. Various improved batteries, methods and systems are described herein using such improved battery separators that increase acid filling speed and decrease acid filling time for a VRLA battery.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: September 8, 2020
    Assignee: Daramic, LLC
    Inventors: Eric H. Miller, Robert W. Saffel
  • Patent number: 10763480
    Abstract: A porous separator for secondary batteries is formed of a porous film, and has a first layered region having an average pore diameter of 100 nm or more and 500 nm or less, and a second layered region having a larger average pore diameter than the first layered region. The first layered region is positioned in one outermost surface of the porous film. Both the first layered region and the second layered region may be positioned as outermost surfaces of the porous film.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: September 1, 2020
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventor: Tsukasa Sugawara
  • Patent number: 10755867
    Abstract: The present invention is directed to a method for pre-lithiation of negative electrodes during lithium loaded electrode manufacturing for use in lithium-ion capacitors. There is provided a system and method of manufacture of LIC electrodes using thin lithium film having holes therein, and in particular, to the process of manufacturing lithium loaded negative electrodes for lithium-ion capacitors by pre-lithiating electrodes with thin lithium metal films, wherein the thin lithium metal films include holes therein, and the lithium loaded negative electrodes are manufactured using a roll-to-roll lamination manufacturing process.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: August 25, 2020
    Assignees: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC, GENERAL CAPACITOR, LLC
    Inventors: Wanjun Cao, Jim P. Zheng
  • Patent number: 10756352
    Abstract: Provided is an electrode active material slurry including a clustered complex and a slurry, wherein the clustered complex includes an electrode active material, a solid electrolyte, a conductive material, and a first binder, and the slurry includes a solvent and a second binder. The electrode active material slurry may include the clustered complex including the first binder and the slurry including the second binder so as to decrease a surface area of the overall complex, such that adhesion property with the current collector may be sufficiently secured even by using a small amount of binder, and performance of the all-solid secondary battery may be further improved.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: August 25, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-University Cooperation Foundation Hanyang University
    Inventors: Yong Sub Yoon, Hong Seok Min, Kyung Su Kim, Oh Min Kwon, Dong Wook Shin, Sung Woo Noh, Lak Young Choi
  • Patent number: 10714723
    Abstract: Provided is a separator for a non-aqueous secondary battery, including: a porous substrate having an average pore diameter of from 20 nm to 100 nm; and a porous layer provided on one or both sides of the porous substrate and including a polyvinylidene fluoride resin and a filler, the porous layer including a filler in an amount of from 45% by volume to 75% by volume with respect to a total solid content of the porous layer, a weight average molecular weight of the polyvinylidene fluoride resin being 1,000,000 or more, and a peel strength between the porous substrate and the porous layer being 0.20 N/12 mm or more.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: July 14, 2020
    Assignee: TEIJIN LIMITED
    Inventors: Rika Kuratani, Satoshi Nishikawa
  • Patent number: 10693117
    Abstract: Provided are separator systems for electrochemical systems providing electronic, mechanical and chemical properties useful for a variety of applications including electrochemical storage and conversion. Embodiments provide structural, physical and electrostatic attributes useful for managing and controlling dendrite formation and for improving the cycle life and rate capability of electrochemical cells including silicon anode based batteries, air cathode based batteries, redox flow batteries, solid electrolyte based systems, fuel cells, flow batteries and semisolid batteries. Disclosed separators include multilayer, porous geometries supporting excellent ion transport properties, providing a barrier to prevent dendrite initiated mechanical failure, shorting or thermal runaway, or providing improved electrode conductivity and improved electric field uniformity. Disclosed separators include ionically conductive and electronically insulating separators having an electronically and ionically conductive layer.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: June 23, 2020
    Assignee: California Institute of Technology
    Inventor: Farshid Roumi