Having Defined Porosity Either Functional Or By Size (i.e., Semipermeable, Permselective, Ionpermeable, Microporous, Etc.) Patents (Class 429/145)
  • 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: 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: 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: 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: 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: 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
  • Patent number: 10680224
    Abstract: A polyolefin multilayer microporous membrane is disclosed. The polyolefin multilayer microporous membrane has a low air permeability value, maintains high porosity and mechanical strength even when formed into a thin film. The polyolefin multilayer microporous membrane also has excellent impedance characteristics. The polyolefin multilayer microporous membrane has excellent battery characteristics when used as a battery separator.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: June 9, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kosuke Harumoto, Yukiko Miura, Hideto Mitsuoka
  • Patent number: 10668826
    Abstract: Apparatuses, systems, and methods of storing electrical energy for electric vehicles are provided. A battery pack can be disposed in an electric vehicle to power the electric vehicle. A battery cell can be arranged in the battery pack. The battery cell can include a housing. The housing can define a cavity within the housing. The cavity of the battery cell can include a separator having a first side and a second side, a cathode disposed along the first side of the separator, and an anode disposed along the second side of the separator. The anode can include a first portion adjacent to the second side of the separator, and a second portion adjacent to the first portion and separated from the separator by the first portion. A porosity of the first portion of the anode can be greater than a porosity of the second portion of the anode.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: June 2, 2020
    Assignee: SF MOTORS, INC.
    Inventors: Mehdi M. Forouzan, Saeed Khaleghi Rahimian, Sangwoo Han, Ying Liu, Yifan Tang
  • 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: 10651461
    Abstract: A novel lithium battery cathode, a lithium ion battery using the same and processes and preparation thereof are disclosed. The battery cathode is formed by force spinning. Fiber spinning allows for the formation of core-shell materials using material chemistries that would be incompatible with prior spinning techniques. A fiber spinning apparatus for forming a coated fiber and a method of forming a coated fiber are also disclosed.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: May 12, 2020
    Assignees: National Technology & Engineering Solutions of Sandia, LLC, The Board of Regents, The University of Texas System
    Inventors: Nelson S. Bell, Nancy A. Missert, Karen Lozano, Yatinkumar N. Rane
  • Patent number: 10626514
    Abstract: An electrochemical cell includes a positive electrode, a negative electrode, an electrolyte disposed between the positive electrode and the negative electrode, and an ion-conducting composite membrane disposed between the positive electrode and the negative electrode. The composite membrane includes a porous substrate having pores and a porosity from about 5 vol % to about 80 vol %, and a selective ion-conductive filler disposed at least partially within the pores. The filler includes an intercalation material. Methods of making the ion-conducting composite membrane and using an electrochemical cell having the ion-conducting composite membrane are also provided.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: April 21, 2020
    Assignees: Massachusetts Institute of Technology, Total Energies Nouvelles Activites USA, Total S.A.
    Inventors: Daniel A. Dalla Corte, Brice H. V. Chung, Dheevesh V. Arulmani, Donald R. Sadoway
  • Patent number: 10629945
    Abstract: The present invention relates to a method for manufacturing a secondary battery. The method comprises: a first process (S10) of manufacturing an incomplete electrode assembly; a second process (S20) of preparing a pattern member on which a patterned pressing protrusion is formed; a third process (S30) of stacking the pattern member on an outer surface of the incomplete electrode assembly; a fourth process (S40) of partially pressing the incomplete electrode assembly to pattern-bond an interface between the electrode and the separator and thereby to manufacture a complete electrode assembly; a fifth process (S50) of accommodating the complete electrode assembly into a case; a sixth process (S60) of injecting an electrolyte to impregnate the electrolyte into the electrode assembly; a seventh process (S70) of sealing an unsealed surface to manufacture a secondary battery; and an eighth process (S80) of heating and pressing an entire surface of the secondary battery.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: April 21, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sung Jong Kim, Cha Hun Ku, Tae Kyu Kim, Kyung Taek Kim, Dong Hyun Kim
  • Patent number: 10608226
    Abstract: The invention provides a coating or film adapted to be arranged between a separator and at least one electrode of a rechargeable battery. The coating or film comprises a porous layer comprising a layer material having at least a first material and a second material, the first and the second materials being arranged to comprise a plurality of pores for passage of ions therethrough; and the second material is adapted to reduce in size upon drying such that porosity of the porous layer is improved or enhanced at a normal operating temperature; wherein, in response to temperature change, the layer material is adapted to undergo a first phase change during which the pores of said porous layer are adapted to substantially close to thereby substantially reduce or prevent further passage of ions.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: March 31, 2020
    Assignee: Hong Kong Applied Sciene and Technology Research Institute Co. Ltd.
    Inventors: Laiyong Xie, Jing Xiang, Pau Yee Lim
  • Patent number: 10601011
    Abstract: Provided is a composition for a secondary battery porous membrane having excellent redispersibility. The composition for a secondary battery porous membrane contains inorganic oxide particles X, a metal hydroxide Y, a binder, and water. The metal hydroxide Y is a divalent or trivalent hydroxide, and is contained in an amount of at least 0.001 parts by mass and not more than 10 parts by mass per 100 parts by mass of the inorganic oxide particles X.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: March 24, 2020
    Assignee: ZEON CORPORATION
    Inventors: Naohiro Yasuda, Yujiro Toyoda
  • Patent number: 10601030
    Abstract: The present invention provides for a composition of matter, polymeric conductive binder, or electrode comprising: Poly[(2-ethyldimethylammonioethyl methacrylate ethyl sulfate)-co-(1-vinylpyrrolidone)]. The present invention also provides for a Lithium-Sulfur (Li—S) battery comprising a cathode comprising: a cathode comprising a polymeric conductive binder poly[(2-ethyldimethylammonioethyl methacrylate ethyl sulfate)-co-(1-vinylpyrrolidone)]; a separator; an anode; and, an electrolyte.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 24, 2020
    Assignee: The Regents of the University of California
    Inventors: Gao Liu, Min Ling, Changan Yang
  • Patent number: 10522837
    Abstract: A lead-acid battery includes a separator retaining an electrolyte solution, a positive electrode plate, a negative electrode plate, and a container. A negative electrode material contains bisphenols condensate, and a theoretical capacity ratio of the negative electrode material to a positive electrode material is 0.85 or more and 1.2 or less.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: December 31, 2019
    Assignee: GS Yuasa International Ltd.
    Inventor: Ikumi Motoi
  • Patent number: 10511058
    Abstract: Disclosed is a multilayer cable-type secondary battery including a first electrode assembly comprising one or more first inner electrodes and a sheet-type first separation layer-outer electrode complex spirally wound to surround outer surfaces of the first inner electrodes, a separation layer surrounding the first electrode assembly to prevent short circuit of the electrodes, and a second electrode assembly comprising one or more second inner electrodes surrounding an outer surface of the separation layer and a sheet-type second separation layer-outer electrode complex spirally wound to surround outer surfaces of the second inner electrodes.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: December 17, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, In-Sung Uhm, Je-Young Kim
  • Patent number: 10501875
    Abstract: A melt-blown nonwoven fabric includes a fiber containing a thermoplastic resin, wherein apparent density is 0.1 to 0.4 g/cm3 and KES surface roughness of at least one surface of the fabric sheet is up to 1.2 ?m; and a method of producing the fabric includes conveying a web of the nonwoven fabric by sandwiching the web between two belt conveyers each including a belt having a smooth surface, providing a heat treatment zone where a surface of one or both of the belt conveyers has been heated to a temperature not lower than cold crystallization temperature of the thermoplastic resin and not higher than the temperature ?3° C. lower than melting temperature of the thermoplastic resin in at least a part of a course between the belts, and heating the nonwoven fabric web in the heat treatment zone by contacting both surfaces of the nonwoven fabric web with the belt.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: December 10, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Daiki Shimada, Youhei Nakano, Yoshikazu Yakake, Takuji Kobayashi
  • Patent number: 10476096
    Abstract: The present invention relates to a method for manufacturing a secondary battery. The method comprises: a first process (S10) of manufacturing an incomplete electrode assembly; a second process (S20) of partially pressing the incomplete electrode assembly to manufacture a complete electrode assembly in which a bonding portion and a nonbonding portion coexist; a third process (S30) of accommodating the complete electrode assembly into a case; a fourth process (S40) of injecting an electrolyte through an opening of the case to impregnate the electrolyte into the electrode assembly; a fifth process (S50) of sealing an unsealed surface in which the opening of the case is formed to manufacture a secondary battery; and a sixth process (S60) of heating and pressing an entire surface of the secondary battery to bond the nonbonding portion of the interface between the electrode and the separator.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: November 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sung Jong Kim, Tae Kyu Kim, Kyung Taek Kim, Dong Hyun Kim, Kyung Jae Lee, Cha Hun Ku, Eui Kyung Lee
  • Patent number: 10468653
    Abstract: A laminated porous film includes: a porous base material layer containing polyolefin as a main component; a filler layer containing inorganic particles as a main component; and a resin layer containing, as a main component, resin particles having a median diameter (D50) of greater than 1 ?m.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: November 5, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Junji Suzuki
  • Patent number: 10468652
    Abstract: Provided are a separator for a lithium secondary battery and a manufacturing method therefor. In order to improve processability and cell stability by increasing the bonding force between a separator and a coating layer, the separator comprises: a porous polymer substrate having a plurality of pores; a porous coating layer formed on at least one surface of the porous polymer substrate; and an emulsion binder layer formed between the porous polymer substrate and the porous coating layer.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: November 5, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Dae-Sung Jang, Dong-Wook Sung, Ji-Eun Kim, Joo-Sung Lee
  • Patent number: 10461297
    Abstract: To afford a laminated body that is usable as a nonaqueous electrolyte secondary battery separator and that is not easily curled, a laminated body includes: a porous base material containing a polyolefin-based resin as a main component; and a porous layer containing a polyvinylidene fluoride-based resin, the porous base material having a parameter X of not more than 20, the parameter X being calculated in accordance with a particular formula, the polyvinylidene fluoride-based resin containing crystal form ? in an amount of not less than 36 mol % with respect to 100 mol % of a total amount of the crystal form ? and crystal form ? contained in the polyvinylidene fluoride-based resin.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: October 29, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshihiko Ogata, Hiroki Hashiwaki, Chikara Murakami
  • Patent number: 10454086
    Abstract: A separator for a rechargeable lithium battery includes a substrate and a heat-resistant porous layer on at least one side of the substrate. The heat-resistant porous layer includes a crosslinked binder. The crosslinked binder has a cross-linked structure of a crosslinkable compound including a siloxane compound. The siloxane compound includes a siloxane resin including a unit represented by the chemical formula R1SiO3/2, where R1 is a curable reactive group, or an organic group having a curable reactive group.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: October 22, 2019
    Assignees: SAMSUNG SDI CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Bokyung Jung, Byungmin Lee, Seungrim Yang, Myungkook Park, Eon-Mi Lee, Sungsoo Han, Hana Kim, Jungsue Jang, Minho Cho, Hyoungwoo Choi
  • Patent number: 10431798
    Abstract: Provided are a separator for a lithium secondary battery including a substrate and a heat-resistance porous layer disposed on at least one surface of the substrate and including a cross-linked binder, wherein the cross-linked binder has a cross-linking structure of a compound represented by Chemical Formula 2, and a lithium secondary battery including the same.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 1, 2019
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Byungmin Lee, Myungkook Park, Seungrim Yang, Eon-Mi Lee, Bokyung Jung, Sungsoo Han, Hana Kim, Jungsue Jang, Minho Cho, Hyoungwoo Choi
  • Patent number: 10396330
    Abstract: Granules containing mixtures of silica powder and cross-linked rubber powder are used in the manufacture of battery separators or vehicle tires. A granule contains silica and rubber powders in proportional amounts that form a silica powder carrier within which rubber powder particles are distributed. Incorporating silica-rubber granules in the manufacturing process of polyethylene separators offers a way to limit water loss in and improve the cycle life of a deep cycle lead-acid battery. Incorporating silica-rubber granules in the manufacturing process of vehicle tires affords advantages including easier material handling, reduced production of dust, and reduction in the number of ingredients measured and added to the formulation.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: August 27, 2019
    Assignee: AMTEK RESEARCH INTERNATIONAL LLC
    Inventors: Richard W. Pekala, Jeff Frenzel, Robert R. Waterhouse
  • Patent number: 10388947
    Abstract: Graphitic carbon nitride materials are shown to be useful in Lithium-Sulfur electrochemical cells. Batteries that include this material exhibit increased electrode kinetics of the lithium-sulfur electrochemical couple, phenomena that improve the specific capacity, usable lifetime and other desirable characteristics of these batteries. Lithium-sulfur batteries that incorporate these materials can be used to overcome a number of limitations in this technology.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: August 20, 2019
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, MITSUBISHI CHEMICAL CORPORATION
    Inventors: Young-Si Jun, Jeffrey A. Gerbec, Galen D. Stucky
  • Patent number: 10388931
    Abstract: In accordance with at least selected embodiments, the present application or invention is directed to novel or improved porous membranes or substrates, separator membranes, separators, composites, electrochemical devices, batteries, methods of making such membranes or substrates, separators, and/or batteries, and/or methods of using such membranes or substrates, separators and/or batteries. In accordance with at least certain embodiments, the present application is directed to novel or improved porous membranes having a coating layer, battery separator membranes having a coating layer, separators, energy storage devices, batteries, including lead acid batteries including such separators, methods of making such membranes, separators, and/or batteries, and/or methods of using such membranes, separators and/or batteries.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: August 20, 2019
    Assignee: Daramic, LLC
    Inventors: J. Kevin Whear, Ahila Krishnamoorthy, Susmitha Appikatla
  • Patent number: 10388932
    Abstract: A nonaqueous electrolyte secondary battery separator that is not easily curled is provided by a laminated body including a porous base material containing a polyolefin-based resin and a porous layer on at least one surface of the porous base material. The difference between the white index of a surface of the porous base material after being irradiated with ultraviolet light with an intensity of 255 W/m2 for 75 hours and the white index of the surface of the porous base material before irradiation is not more than 2.5. The porous layer contains a polyvinylidene fluoride-based resin which contains crystal form ? in an amount of not less than 36 mol % with respect to 100 mol % of a total amount of the crystal form ? and crystal form ? contained in the resin.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: August 20, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshihiko Ogata, Daizaburo Yashiki, Chikara Murakami
  • Patent number: 10381623
    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: July 11, 2016
    Date of Patent: August 13, 2019
    Assignee: Optodot Corporation
    Inventors: Steven A. Carlson, Benjamin Sloan, David W. Avison
  • Patent number: 10367181
    Abstract: A separator includes a separation functional layer and a support layer. The separation functional layer is configured as a denser layer with a smaller pore size and a lower porosity than the support layer. Accordingly, movement of metal foreign objects from the positive electrode plate side to the negative electrode plate side, and precipitation of metal foreign objects on the negative electrode plate side can be inhibited, thereby making it possible to ensure battery performance and safety.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: July 30, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshinori Shishida, Kenji Date, Takao Kuromiya
  • Patent number: 10367182
    Abstract: A laminated body includes: a porous base material containing a polyolefin-based resin as a main component, the porous base material having a predetermined phase difference and porosity; and a porous layer disposed on at least one surface of the porous base material, the porous layer containing a polyvinylidene fluoride-based resin, the polyvinylidene fluoride-based resin containing crystal form ? in an amount of not less than 34 mol % with respect to 100 mol % of a total amount of the crystal form ? and crystal form ? contained in the polyvinylidene fluoride-based resin.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: July 30, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshihiko Ogata, Takahiro Matsuo, Chikara Murakami
  • Patent number: 10361458
    Abstract: A laminated body includes: a porous base material containing a polyolefin-based resin as a main component; and a porous layer which is disposed on at least one surface of the porous base material and which contains a polyvinylidene fluoride-based resin, the laminated body being arranged so that: a diminution rate of diethyl carbonate dropped on the porous base material is 15 sec/mg to 21 sec/mg; a spot diameter of the diethyl carbonate 10 seconds after the diethyl carbonate was dropped on the porous base material is not less than 20 mm; and the polyvinylidene fluoride-based resin containing crystal form ? in an amount of not less than 36 mol % with respect to 100 mol % of a total amount of the crystal form ? and crystal form ? contained in the polyvinylidene fluoride-based resin. A nonaqueous electrolyte secondary battery separator made of the laminated body is not easily curled.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: July 23, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshihiko Ogata, Chikara Murakami
  • Patent number: 10283748
    Abstract: A porous membrane composition for a lithium ion secondary battery, including a first particulate polymer, wherein the first particulate polymer has a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion, the core portion is formed from a polymer having a swelling degree in an electrolytic solution of 5 times or more and 30 times or less, and the shell portion is formed from a polymer having a swelling degree in the electrolytic solution of 1 time or more and 4 times or less.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: May 7, 2019
    Assignee: ZEON CORPORATION
    Inventors: Tomokazu Sasaki, Junnosuke Akiike, Yasuhiro Wakizaka
  • Patent number: 10263234
    Abstract: Provided herein is a separator used for an electrochemical device such as a lithium-ion battery. The separator disclosed herein comprises a porous base material, a first protective porous layer coated on one side of the porous base material, and a second protective porous layer coated on the other side of the porous base material, wherein the first protective porous layer comprises an organic binder and a first inorganic filler, and wherein the second protective porous layer comprises an organic binder and a second inorganic filler different from the first inorganic filler. Also provided herein is a lithium-ion battery including the separator disclosed herein. The separator disclosed herein is excellent in terms of safety, ion permeability, and cycle characteristics.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 16, 2019
    Assignee: GRST International Limited
    Inventors: Sing Ming Tony Wong, Sing Hung Eric Wong, Peihua Shen, Yuen Hung, Kam Piu Ho, Ranshi Wang
  • Patent number: 10243188
    Abstract: A separator includes a non-woven substrate. The non-woven substrate includes a first and a second side. An adhesive coating is disposed on the first side, the second side, or both the first and second sides of the non-woven substrate. The adhesive coating is a surfactant. A porous polymer layer is disposed on the adhesive coating such that the adhesive coating forms an intermediate layer between the non-woven substrate and the porous polymer layer.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: March 26, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hamid G. Kia, Xiaosong Huang
  • Patent number: 10236490
    Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same, the separator including a substrate, and a heat-resistant porous layer on at least one side of the substrate, the heat-resistant porous layer including a crosslinked binder and a non-crosslinked binder, wherein the crosslinked binder has a cross-linked structure of at least one crosslinkable compound, the at least one crosslinkable compound including a multi-functional urethane-based compound, and the crosslinked binder and the non-crosslinked binder are included in a weight ratio of about 3:7 to about 8:2.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: March 19, 2019
    Assignees: SAMSUNG SDI CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seungrim Yang, Byungmin Lee, Bokyung Jung, Myungkook Park, Eon-Mi Lee, Sungsoo Han, Hana Kim, Jungsue Jang, Minho Cho, Hyoungwoo Choi
  • Patent number: 10177362
    Abstract: Provided is a composition for a non-aqueous secondary battery functional layer capable of forming a functional layer for a non-aqueous secondary battery that can provide a battery component with high blocking resistance and cause excellent adhesiveness to be displayed before and after immersion in electrolysis solution. The composition contains a particulate polymer having a core-shell structure including a core portion and a shell portion partially covering an outer surface thereof. The core portion is formed by a polymer having a glass transition temperature of ?50° C. to 60° C. and a degree of swelling in electrolysis solution of at least a factor of 5 and no greater than a factor of 30. The shell portion is formed by a polymer having a glass transition temperature of 50° C. to 200° C. and a degree of swelling in electrolysis solution of greater than a factor of 1 and no greater than a factor of 4.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: January 8, 2019
    Assignee: ZEON CORPORATION
    Inventors: Junnosuke Akiike, Tomokazu Sasaki
  • Patent number: 10153473
    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: July 26, 2013
    Date of Patent: December 11, 2018
    Assignee: Asahi Kasei E-materials Corporation
    Inventors: Hiroshi Miyazawa, Keitaro Ameyama, Takashi Shuto
  • Patent number: 10141556
    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: May 5, 2016
    Date of Patent: November 27, 2018
    Assignee: Daramic, LLC
    Inventors: Eric H. Miller, Robert W. Saffel
  • Patent number: 10084171
    Abstract: A nonaqueous electrolyte secondary battery includes an electrode body that has a positive electrode, a negative electrode, and a separator provided between the positive electrode and the negative electrode. A nonaqueous electrolyte is held at least in the separator. In at least a part of the separator, an amount of change in a thickness of the separator at a time of restraint at 10 MPa is 50% or more.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: September 25, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kosuke Iwase
  • Patent number: 10014506
    Abstract: A nonaqueous secondary battery separator, disposed between a cathode and an anode, includes: a porous base material containing a polyolefin as a main component; and a porous layer containing a polyvinylidene fluoride-based resin on at least one surface of the porous base material. The separator satisfies (C)/(D)?0.13, where (C) represents the average pore diameter (?m) of the porous base material, and (D) represents the porosity of the porous base material, in the porous layer after being immersed for 24 hours in an electrolyte solution having a temperature of 25° C. in which electrolyte solution LiPF6 having a concentration of 1.0 mole per liter is dissolved in a mixed solvent containing ethyl methyl carbonate, diethyl carbonate, and ethylene carbonate at a volume ratio of 50:20:30, the resin having absorbed the electrolyte solution having a volume of 0.05 to 5.00 cm3 per square meter of the porous layer.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 3, 2018
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Chikara Murakami, Toshihiko Ogata, Ichiro Arise, Kosuke Kurakane, Chikae Yoshimaru
  • Patent number: 9991493
    Abstract: A non-aqueous electrochemical cell including a lithium anode, a solid cathode, a first separator and a second separator disposed between the anode and the cathode, and an electrolyte in fluid communication with the anode, the cathode, and the first and the second separators, the first separator having a higher melting point (or shut-down) temperature than the melting point (or shut-down) temperature of the second separator.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: June 5, 2018
    Assignee: EAGLEPICHER TECHNOLOGIES, LLC
    Inventors: Umamaheswari Janakiraman, Ernest Ndzebet, Mario Destephen, Greg Miller, Joe Edington, Ramanathan Thillaiyan
  • Patent number: 9985263
    Abstract: The present invention is preferably directed to a polylactam ceramic coating for a microporous battery separator for a lithium ion secondary battery and a method of making this formulation and application of this formulation to make a coated microporous battery separator. The preferred inventive coating has excellent thermal and chemical stability, excellent adhesion to microporous base substrate, membrane, and/or electrode, improved binding properties to ceramic particles and/or has improved or excellent resistance to thermal shrinkage, dimensional integrity, and/or oxidation stability when used in a rechargeable lithium ion battery.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: May 29, 2018
    Assignee: Celgard, LLC
    Inventor: Insik Jeon
  • Patent number: 9972832
    Abstract: An active material comprising silica-attached particles in the form of host particles of silicon or silicon compound having spherical silica nano-particles attached to surfaces thereof is suited for use in nonaqueous electrolyte secondary batteries. The spherical silica nano-particles have an average particle size of 5-1000 nm, a particle size distribution D90/D10 of up to 3, and an average circularity of 0.8-1. The active material has high fluidity and exhibits improved cycle performance when used in nonaqueous electrolyte secondary batteries.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: May 15, 2018
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tetsuo Nakanishi, Kazuyuki Matsumura
  • Patent number: 9923253
    Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a heat-resistant layer disposed between the positive electrode and the negative electrode. The positive electrode of this secondary battery contains a positive electrode active substance having a hollow structure, which has a shell portion and a hollow portion formed inside the shell portion. In addition, the heat-resistant layer contains plate-shaped inorganic filler particles as the main component.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: March 20, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Nagai, Takumi Tamaki, Harunari Shimamura
  • Patent number: 9923196
    Abstract: According to one embodiment, a plate or electrode for a lead-acid battery includes a grid of lead alloy material, a paste of active material applied to the grid of lead alloy material, and a nonwoven fiber mat disposed at least partially within the paste of active material. The nonwoven fiber mat includes a plurality of fibers, a binder material that couples the plurality of fibers together, and a conductive material disposed at least partially within the nonwoven fiber mat so as to contact the paste of active material. In some embodiments, the nonwoven fiber mat may have an electrical resistant of less than about 100,000 ohms per square to enable electron flow on a surface of the nonwoven fiber mat.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: March 20, 2018
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III