Separator, Retainer Or Spacer Insulating Structure (other Than A Single Porous Flat Sheet, Or Either An Impregnated Or Coated Sheet Not Having Distinct Layers) Patents (Class 429/129)
  • Patent number: 11108116
    Abstract: The discharge performance of a primary, bobbin-style electrochemical cell is improved by incorporating a separator formed from a continuous separator sheet defining a two-layer cylindrical sidewall and a closed bottom end between the included electrochemical cell cathode and anode. A first layer of the cylindrical separator is formed by rolling a first end of a continuous separator sheet into a cylinder having a central axis parallel with a longitudinal axis of the continuous separator sheet, and then rolling a second end of the continuous separator sheet around the exterior of the first cylindrical layer to form a second cylindrical layer. The closed bottom end is formed by a portion of the continuous separator sheet located between the rolled portion of the first end and the rolled portion of the second end.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 31, 2021
    Assignee: Energizer Brands, LLC
    Inventors: David Walter Kalisz, Maria G. Verikakis, Christopher S. Bolyos
  • Patent number: 11095000
    Abstract: A slurry for a lithium ion secondary battery porous membrane, including non-conductive particles, a water-soluble polymer containing an acidic group-containing monomer unit, and a particulate polymer, wherein: an amount of the water-soluble polymer is 0.05 parts by weight to 2 parts by weight relative to 100 parts by weight of the non-conductive particles; and a BET specific surface area of the non-conductive particles is 5 m2/g to 10 m2/g.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: August 17, 2021
    Assignee: ZEON CORPORATION
    Inventor: Junnosuke Akiike
  • Patent number: 11088366
    Abstract: The present invention provides a positive electrode active material for lithium secondary batteries including: secondary particles obtained by aggregating primary particles capable of being doped and de-doped with lithium ions, in which the secondary particles have pores, and pore distribution obtained by a mercury intrusion method satisfies requirements (1) and (2) below: (1) pores that are present in any one or both of the secondary particles or spaces between the secondary particles have a pore peak within a range of a pore radius of equal to or greater than 10 nm and equal to or less than 200 nm; and (2) a total surface area of pores that have pore radii of equal to or greater than 100 nm and equal to or less than 10 ?m among the pores that are present in any one or both of the secondary particles or spaces between the secondary particles is less than 1.1 m2/g.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: August 10, 2021
    Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, TANAKA CHEMICAL CORPORATION
    Inventors: Jun-ichi Kageura, Hiroyuki Kurita, Kimiyasu Nakao, Ryota Kobayashi
  • Patent number: 11081749
    Abstract: The present application relates to the field of batteries, and discloses a battery and a manufacturing method for the same. The battery comprises a package bag, an electrode, and a circuit board assembly. The electrode is located in the package bag, and the electrode is further provided with a terminal. The terminal has one end connected to the electrode and located inside the package bag, and the other end located outside the package bag. The other end of the terminal is electrically connected to the circuit board assembly to form a protection portion, and the protection portion is covered by a protection layer. In the foregoing embodiment, the protection layer can cover structures requiring insulation protection, such as the circuit board assembly and the terminal, and the protection layer can be tightly adhered to the surfaces of the structures, thereby improving the reliability.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: August 3, 2021
    Assignee: DONGGUAN NVT TECHNOLOGY CO., LTD.
    Inventors: Liming Wang, Chenghong Gan, Baiqing Zhang, Guanghui Chen, Wei Tang
  • Patent number: 11063319
    Abstract: Provided is a separator for an electrochemical element having exceptional strength and shielding performance, a small thickness, and low resistance. A separator for an electrochemical element interposed between a pair of electrodes and capable of holding an electrolytic solution containing an electrolyte, wherein the separator for an electrochemical element comprises a regenerated cellulose fiber having an average fiber length of 0.25-0.80 mm and an average fiber width of 3-35 ?m, and in which the value calculated by dividing the average fiber length by the average fiber width is 15-70.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: July 13, 2021
    Assignee: NIPPON KODOSHI CORPORATION
    Inventors: Atsushi Igawa, Takumi Ichimura, Gaku Matsuoka, Norihiro Wada
  • Patent number: 11050052
    Abstract: The present invention provides a lithium ion battery and a negative electrode material thereof. The negative electrode material includes a mixture of a graphite and an amorphous carbon, wherein the graphite is subjected to a surface treatment, and the surface treatment manner is a combination of mechanical fusion modification and spray drying coating, and wherein the graphite has a graphitization degree of 90-96%, an average particle diameter D50 of 13-25 ?m and a specific surface area BET of 0.8-2.5 m2/g, and the amorphous carbon has a graphitization degree of 65-80%, an average particle diameter D50 of 2-15 ?m and a specific surface area BET of 1.0-3.0 m2/g.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 29, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Wenzhu Xu, Jianqing Sun, Guangbo Lu, Fan Sun, Qifan Zou, Shengwei Wang
  • Patent number: 11043700
    Abstract: Aspects of the present disclosure are directed toward a new and improved non-aqueous electrolyte rechargeable battery that is capable of suppressing or reducing non-uniformity of pressure during the manufacturing process, and thus suppressing or reducing a thickness increase during cycling, as well as a manufacturing method thereof. The present disclosure provides a non-aqueous electrolyte rechargeable battery including: an stacked electrode assembly in which electrodes and a separator are sequentially stacked; current collecting tabs attached to portions of some surfaces of the electrodes; and filling members positioned in vicinities of the current collecting tabs along the surface directions.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 22, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Atsushi Nishimoto, Yasuo Takano
  • Patent number: 10971782
    Abstract: The method of the present disclosure includes: preparing a solution containing a water-soluble polymer dissolved in a mixed solvent containing water admixed with a first solvent having a higher boiling point than that of the water; applying the solution in a film form to a surface of an electrode to form a coating made of the solution on the surface of the electrode; and removing the mixed solvent from the coating by vaporization such that a porous separator layer made of the water-soluble polymer is formed on the surface of the electrode while a plurality of pores are formed in an inside of the coating due to removal of the first solvent. The solubility of the water-soluble polymer in the first solvent is lower than that of the water-soluble polymer in the water.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 6, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akio Minakuchi, Tomoyuki Uezono, Kohei Matsunobu
  • Patent number: 10916782
    Abstract: The present invention provides a solid-liquid electrolyte in the form of a gel which comprises an organic carbonate-based solvent, precipitated silica, at least one ionically conducting salt and optionally additives. The invention also relates to batteries containing said solid-liquid electrolyte. The solid-liquid electrolyte according to the present invention can improve the electrochemical properties of batteries and prevent electrolyte leakage thus reducing the risk of corrosion of the batteries.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: February 9, 2021
    Inventors: Thierry Le Mercier, Marc-David Braida, Robin Amisse, Jules Valente
  • Patent number: 10897043
    Abstract: A secondary battery includes a first electrode; a first active material fluid which is electrically connected to the first electrode, contains a first active material and a supporting salt, and is flowable; and a second electrode including a structure which is formed by containing a second active material, the structure either being immersed in the first active material fluid or holding the first active material fluid, and a separating membrane disposed between the first active material fluid and the structure, the separating membrane having ion conducting properties and insulating properties.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: January 19, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Chikaaki Okuda, Hiroki Kondo, Tsuyoshi Sasaki
  • Patent number: 10886527
    Abstract: Provided with a negative electrode for a secondary battery comprising an anode active material that is a mixture of an amorphous carbon-coated graphite active material A having a density of 1.50 g/cm3 or less in press pelletizing at 2 kN/cm2 and a carbon-based active material B having a density of 1.65 g/cm3 or higher in press pelletizing at 2 kN/cm2 in a weight ratio of 90:10 to 99:1 as A:B, so that the cracking of amorphous carbon-coated graphite is suppressed and high-temperature life characteristics is improved.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 5, 2021
    Assignee: Envision AESC Energy Devices Ltd.
    Inventor: Hiroo Takahashi
  • Patent number: 10875964
    Abstract: A polymer compound to be used as a binder for a negative electrode of a power storage device is provided. The polymer compound is formed by condensation of a polyacrylic acid and a polyfunctional amine represented by the following general formula (1), where X is a ring structure having 1 to 3 benzene rings; and C1 to C4 are each a carbon atom constituting a benzene ring in the ring structure.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: December 29, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Sugiyama, Takeshi Kondo, Nobuhiro Goda
  • Patent number: 10854864
    Abstract: Provided are a separator for a lithium secondary battery and a lithium secondary battery comprising the same. The separator for a lithium secondary battery includes: a porous substrate; and a coating layer disposed on one side or both sides of the porous substrate and including a first inorganic particle and a second inorganic particle having different lengths of a major axis, and a binder, wherein a moisture content is less than 800 ppm after being left for 12 hours at a temperature of 40° C. and relative humidity of 90%.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: December 1, 2020
    Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
    Inventors: Yun Bong Kim, Won Sub Kwack, Hye Jin Kim, Su Ji Lee, Kyu Young Cho
  • Patent number: 10833304
    Abstract: The disclosure relates to a one-way valve, a top cover component, a box and a battery module. The one-way valve includes: a valve body including an inlet end, an exhaust end and an air-flow passage, the air-flow passage including a first flow-passing hole, a second flow-passing hole and a protrusion disposed on a bottom wall of the first flow-passing hole, the second flow-passing hole penetrating through the protrusion; an elastic valve cap, the protrusion being sheathed with and in a sealed connection with the elastic valve cap, a flow-passing gap is formed between an outer surface of the elastic valve cap and a hole wall of the first flow-passing hole, the second flow-passing hole includes a conical hole-section; a valve cover in connection with the exhaust end, wherein the valve cover is disposed within the first flow-passing hole and includes an exhaust passage in connection with the first flow-passing hole.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 10, 2020
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhiyi You, Xiaofan Wang, Feng Qin, Lin Ma, Zhi Wang, Xinfu Xiao
  • Patent number: 10804520
    Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: October 13, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Ji Won Park, Myung Hoon Ko, Seung Ho Na, Chang Bum Ahn
  • Patent number: 10784536
    Abstract: A method including a step of preparing a positive electrode including a positive electrode mixture layer, a negative electrode including a negative electrode mixture layer, and a nonaqueous electrolyte; and a step of accommodating the positive electrode, the negative electrode, and the nonaqueous electrolyte in a battery case. The nonaqueous electrolyte contains a compound (I) represented by the following formula (I) LiO3S—R—SO3Li (wherein R represents a linear hydrocarbon group having 1 to 10 carbon atoms). When a BET specific surface area of the negative electrode mixture layer is represented by X (m2/g) and when an amount of the compound (I) with respect to the total amount of the nonaqueous electrolyte is represented by Y (mass %), the following relationships 3?X?4.3, 0.2?Y?0.4, and (Y/X)?0.093 are satisfied.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: September 22, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Yamasaki, Tatsuya Hashimoto
  • Patent number: 10784508
    Abstract: The present disclosure provides a preparation method of a modified positive electrode active material preparation method, which comprising steps of: dispersing a positive electrode active material matrix into an alcohol solvent to form a positive electrode active material matrix suspension; dissolving an alcohol-soluble aluminum salt in an alcohol solvent to form an alcohol-soluble aluminum salt solution; dissolving an alcohol-soluble phosphorous compound in an alcohol solvent to form an alcohol-soluble phosphorous compound solution; mixing the alcohol-soluble aluminum salt solution and the alcohol-soluble phosphorous compound solution and heating to react, obtaining a liquid-phase coating solution which contains aluminum phosphate after the reaction is finished; mixing and stirring the positive electrode active material matrix suspension and the liquid-phase coating solution which contains aluminum phosphate, extraction filtrating and obtaining a filter cake after the stirring is finished, then drying and ba
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: September 22, 2020
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Huan Ni, Yujun Chen, Xinliang Kuang, Xuguang Gao, Long Wang, Na Liu
  • Patent number: 10763483
    Abstract: The battery pack disclosed herein includes a plurality of unit cells. The plurality of unit cells is connected to each other by a bus bar. The bus bar has two terminal connection portions and a linking portion. A linear welded portion is formed in a portion where the terminal connection portions and the external terminals overlap with each other. The linear welded portion is non-annular in the plane of the terminal connection portions and has a straight linear portion extending in a direction orthogonal to the arrangement direction, and two circular arc portions that extend from respective ends of the straight linear portion and are curved toward a side opposite to the side where the linking portion is located.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: September 1, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Nagai, Koji Tamaru, Ryo Kagami, Yuki Okamoto
  • Patent number: 10756330
    Abstract: A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery. A battery, comprising: a first electrode, including a number of porous silicon spheres; a second electrode; and an electrolyte in contact with both the first electrode and the second electrode.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: August 25, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Wei Wang, Cengiz S Ozkan, Mihrimah Ozkan
  • Patent number: 10727481
    Abstract: A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li+ intercalation medium. Highly reversible Li+ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. Addition of surface effect dominant sites in close proximity to the intercalation medium results in a hybrid device that includes advantages of both batteries and capacitors.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 28, 2020
    Assignee: CF TRAVERSE LLC
    Inventor: Ronald A. Rojeski
  • Patent number: 10696840
    Abstract: A resin composition for semiconductor encapsulation, containing (A) an epoxy resin, (B) a phenolic resin-based curing agent, (C) an inorganic filler, and (D) amorphous carbon, wherein the amorphous carbon of the component (D) contains 30 atomic % or more of an SP3 structure and 55 atomic % or less of an SP2 structure.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: June 30, 2020
    Assignee: KYOCERA CORPORATION
    Inventors: Ken Uchida, Shinichi Kazama, Yoshitake Terashi
  • Patent number: 10693195
    Abstract: Provided is a rechargeable battery. The rechargeable battery includes an electrode assembly, an electrolyte immersing the electrode assembly therein, a case assembly accommodating the electrode assembly and the electrolyte, and an absorbing member disposed in the electrode assembly to absorb stress applied to the inside of the electrode assembly when the electrode assembly is expanded.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jin Uk Do, Ju Bin Kim, Sang Sok Jung
  • Patent number: 10673047
    Abstract: The present disclosure relates to a cable type secondary battery which includes: a cable type electrode assembly including an inner electrode, a separator layer formed to surround the outer surface of the inner electrode and preventing a short-circuit between electrodes, and an outer electrode formed to surround the separator layer; a taping layer formed by spirally winding a sheet type tape so that it surrounds the outer surface of the cable type electrode assembly; and a packaging formed to surround the outer surface of the taping layer. According to the present disclosure, it is possible to prevent separation of the separator layer or the outer electrode, and thus to reinforce the bending characteristics of the cable type secondary battery.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: June 2, 2020
    Assignee: KG Chem, Ltd.
    Inventors: In-Sung Uhm, Je-Young Kim, Suk-In Noh, Young-Ji Yuk, Dong-Chan Lee
  • Patent number: 10673044
    Abstract: An electrical insulator and its related battery are provided. The electrical insulator includes a separation region and a supporting region. The supporting region covers the edge of at least one of opposite surfaces of the separation region and at least a part of a lateral surface of the separation region. The battery includes the electrical insulator. The electrical insulator is disposed between cathode and anode active material layers of the battery and contacts the active material layers directly. The cathode and the anode active material layers are completely electrically isolated because the electrical insulator totally covers at least one active material layer. Hence, the inner short of the battery is prevented.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: June 2, 2020
    Assignees: PROLOGIUM TECHNOLOGY CO., LTD., PROLOGIUM HOLDING INC.
    Inventor: Szu-Nan Yang
  • Patent number: 10661462
    Abstract: A wrinkle or misaligned winding caused in a separator roll is inhibited. In a slitting apparatus (6), a conveying direction of a first separator (12a) is changed to a first take-up roller (70U) side by a direction changing roller (68), the first separator is conveyed via a take-up assisting roller (69) which is provided between the direction changing roller and a first touch roller (81U) so as to shorten a roller-to-roller distance to the first touch roller, and the first separator which is being wound is pressed onto a take-up surface by the first touch roller.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 26, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kiyomu Nomura, Tatsuya Kataoka
  • Patent number: 10658697
    Abstract: A secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode including a carbon material and a silicon-based material; and an electrolyte layer. The electrolyte layer includes an electrolytic solution and a polymeric compound and has one or more through-holes extending in a thickness direction of the electrolyte layer.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: May 19, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Masayuki Iwama
  • Patent number: 10644323
    Abstract: Provided is a metal mesh foil for a current collector of a lithium secondary battery having a hydrophobic deposition layer formed on a surface thereof, wherein the hydrophobic deposition layer is a deposition layer, in which a hydrophobic material is deposited, and has a thickness of 1 ? to 100 ?.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: May 5, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Su Min Lee, Sun Young Shin, Oh Byong Chae, Eun Kyung Kim
  • Patent number: 10644332
    Abstract: A gas-liquid separator includes a casing in which there are formed an inlet port to which a gas-liquid two-phase flow is supplied, and an outlet port through which a gas flow is discharged after the gas-liquid two-phase flow has been separated into a gas and a liquid. A gas-liquid separation chamber is formed in the casing by a partition wall. The inlet port opens on a surface of the partition wall in the gas-liquid separation chamber. The gas-liquid separator further includes a deflection member configured to change a flow direction of the gas-liquid two-phase flow that flows in from the inlet port, and a clearance is formed between the deflection member and an inner wall of the casing.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 5, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Okamura, Tetsuya Fukuda, Yoichiro Saito
  • Patent number: 10637073
    Abstract: A positive electrode for a metal-air battery, the positive electrode including: a first layer disposed on a surface of an electrolyte membrane or a separator and including a first carbon material, a first electrolyte, and a first binder having an affinity with the first electrolyte; and a second layer disposed on the first layer and including a second carbon material, a second electrolyte, and a second binder having an affinity with the second electrolyte, wherein the first carbon material is different from the second carbon material, the first carbon material has a Brunauer Emmett Teller specific surface area which is greater than a Brunauer Emmett Teller specific surface area of the second carbon material, and wherein an amount of the first binder may be about 1.5 times to about 3 times greater than an amount of the second binder.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jungock Park, Mokwon Kim, Joonhee Kim, Kyounghwan Choi
  • Patent number: 10629958
    Abstract: An objective is to provide a novel aqueous electrolytic solution constituting an aqueous power storage device that stably operates even at a high voltage. An electrolytic solution for a power storage device contains water as a solvent and has a composition in which an amount of the solvent is not greater than 4 mol with respect to 1 mol of an alkali metal salt.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: April 21, 2020
    Assignees: THE UNIVERSITY OF TOKYO, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomoyuki Kawai, Junichi Niwa, Atsuo Yamada, Yuki Yamada, Kenji Usui
  • Patent number: 10615454
    Abstract: An electrolyte and a lithium battery including the electrolyte, a positive electrode, and a negative electrode are provided. The electrolyte includes a lithium difluorophosphate (LiPO2F2), a sultam-based compound, and an organic solvent. The electrolyte may reduce an internal resistance increase rate of a lithium battery, and thus improve high-temperature stability of the lithium battery.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: April 7, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyunbong Choi, Miyoung Son, Harim Lee, Woocheol Shin, Makhmut Khasanov
  • Patent number: 10615406
    Abstract: A negative electrode of a lithium ion secondary battery of the present invention includes a current collector (32) and a negative electrode active material layer (34) provided on the current collector (32). In the negative electrode of a lithium ion secondary battery, the negative electrode active material layer (34) includes carbon particles, a degree of graphitization of the carbon particles is 1.0 or more and 1.5 or less and a degree of orientation of the carbon particles is 50 or more and 150 or less; where, the degree of graphitization is a ratio (P101/P100) between a peak intensity P101 of the (101) plane and a peak intensity P100 of the (100) plane in an X-ray diffraction pattern and the degree of orientation is a ratio (P002/P110) between a peak intensity P002 of the (002) plane and a peak intensity P110 of the (110) plane in an X-ray diffraction pattern.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: April 7, 2020
    Assignee: TDK CORPORATION
    Inventors: Hiroshi Sasagawa, Yasuyuki Kawanaka, Takuya Aoki
  • Patent number: 10581080
    Abstract: A cathode includes a cathode active material layer including a cathode active material; and a coating layer that is disposed on the cathode active material layer and that includes a block copolymer, wherein the block copolymer includes at least one first block that forms a structure domain and a second block that forms an ion conductive domain, and a total amount of the first block is in a range of about 20 weight percent to about 80 weight percent based on the total weight of the block copolymer.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: March 3, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Yonggun Lee, Saebom Ryu, Wonseok Chang
  • Patent number: 10573924
    Abstract: An electrochemical cell includes a composite electrode body with at least one positive and at least one negative electrode; an electrolyte that impregnates the composite electrode body; and a housing with a liquid-impervious interior, wherein the composite electrode body impregnated with the electrolyte is disposed in the interior, and the housing consists of PEK or a PEK based material.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: February 25, 2020
    Assignee: VARTA Microbattery GmbH
    Inventors: Rolf Brenner, Juergen Ernsperger, Claus-Christian Fischer, Winfried Gaugler, Rainer Hald, Goran Kilibarda, Bernd Kreidler
  • Patent number: 10541400
    Abstract: A secondary battery includes an electrode body and an electrolytic solution, the electrode body including a positive electrode, a negative electrode, and a separator. The separator includes a resin substrate that has a multi-layer structure including a porous polyethylene layer and a porous high melting point resin layer, the porous polyethylene layer including a polyethylene resin and being disposed to face the negative electrode, and the porous high melting point resin layer including a resin having a higher melting point than the polyethylene resin. The porosity of the porous polyethylene layer is 2% to 5%. A ratio of the thickness of the porous polyethylene layer to the total thickness of the resin substrate is 0.048 to 0.091.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: January 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Emi Tsutsui
  • Patent number: 10535908
    Abstract: A lithium ion conducting protective film produced using a layer-by-layer assembly process. The lithium ion conducting protective film is assembled on a substrate by a sequential exposure of the substrate to a first poly(ethylene oxide) (PEO) layer including a cross-linking silane component on the first side of the substrate, a graphene oxide (GO) layer on the first PEO layer, a second poly(ethylene oxide) (PEO) layer including a cross-linking silane component on the GO layer and a poly(acrylic acid) (PAA) layer on the second PEO layer. The film functions as a lithium ion conducting protective film that isolates the lithium anode from the positive electrochemistry of the cathode in a lithium-air battery, thereby preventing undesirable lithium dendrite growth.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 14, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Mariya Khiterer, Paula T. Hammond, Sun Hwa Lee
  • Patent number: 10505227
    Abstract: This invention is directed to functional ionic liquid hybrid materials having negligible vapor pressure, nonflammability, good room-temperature ionic conductivity, wide electrochemical windows, and favorable chemical and thermal stability.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: December 10, 2019
    Assignee: NOHMS Technologies, Inc.
    Inventors: Surya S. Moganty, Gabriel Torres
  • Patent number: 10505168
    Abstract: Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Also provided are electrochemical cells comprising such separators.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 10, 2019
    Assignee: Optodot Corporation
    Inventors: Steven Allen Carlson, Ifenna Kingsley Anakor, Greg Robert Farrell
  • Patent number: 10476064
    Abstract: The present invention relates to a jelly-roll type electrode assembly comprising: a sheet-like positive electrode; a sheet-like negative electrode; and a separator which is interposed between the positive electrode and the negative electrode, and which includes a first adhesive coating part and a second adhesive coating part formed on a first surface of a sheet-like porous substrate, and a third adhesive coating part formed on a second surface which is the opposite surface to the first surface, wherein the first adhesive coating part and the second adhesive coating part have different tack strength from each other.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: November 12, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung Han Jung, Ki Woong Kim, Sung Pil Yoon
  • Patent number: 10468658
    Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly having a thickness and including a positive electrode and a negative electrode. The battery also includes a case accommodating the electrode assembly. The electrode assembly further includes a plurality of first electrode tabs protruding from the positive electrode and a plurality of second electrode tabs protruding from the negative electrode. The first electrode tabs have a width and are aligned in the thickness dimension of the electrode assembly. A distance TG between the first electrode tabs and the second electrode tabs satisfies the following equations: 1.2TW1<TG<6TW1 and TG>5SW1, where TW1 is the width of the first electrode tabs and SW1 is the minimum distance between the first electrode tabs and a lateral end of the electrode assembly.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: November 5, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seong-Gi Choo, Sung-Hwa Eo, Da-Woon Han, Jan-Dee Kim
  • Patent number: 10454134
    Abstract: A lithium secondary battery including a cathode electrode, an anode electrode, and a separation film installed between the cathode electrode and the anode electrode, wherein the cathode electrode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a continuous concentration gradient region between a core part and a surface part thereof, the anode electrode includes a ceramic coating layer on at least one surface thereof, and the separation film includes a base film, and a ceramic coating layer formed on at least one surface of the base film, such that it is possible to achieve a significantly improved effect in both of the lifespan property and penetration durability.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: October 22, 2019
    Assignee: SK Innovation Co., Ltd.
    Inventors: Kook-Hyun Han, Kyung-Bin Yoo, Duck-Chul Hwang
  • Patent number: 10431793
    Abstract: A method of producing a separator is provided. The method includes providing a particle membrane including inorganic particles on at least one principal surface of a porous body by a vapor-phase process such that the particle membrane has a porosity that is non-uniform in a thickness direction thereof. A method of producing a microporous membrane is also provided.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: October 1, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masahiro Sawaguchi, Masashi Meguro, Masaru Hiratsuka, Yoshiyuki Fuchigami
  • Patent number: 10396359
    Abstract: A method includes treating a CFx material with a base during the formation of a CFx cathode; and assembling the treated CFx material into a cathode electrode and assembling the cathode electrode with a lithium anode electrode and an electrolyte into a cell.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: August 27, 2019
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Ignacio Chi, Steven P. Findell, Todd Eric Bofinger, Michael J. Root
  • Patent number: 10381632
    Abstract: An electrochemical storage cell is disclosed that comprises a core and a rectangular shell that receives the core snugly therein. The rectangular shell has first and second open ends. A first end cap is used to close the first open end. An anode terminal extends through the first end cap from an interior portion of the electrochemical storage cell to an external portion thereof. A first gasket is secured within the rectangular shell between the first end cap and the core to resiliently hold the core away from the first end cap. A second end cap is used to close the second open end. A cathode terminal extends through the second end cap from an interior portion of the electrochemical storage cell to an external portion thereof. A second gasket is secured within the rectangular shell between the second end cap and the core to resiliently hold the core away from the second end cap.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: August 13, 2019
    Assignees: SHENZHEN BYD AUTO R&D COMPANY LIMITED, BYD COMPANY LIMITED
    Inventors: Weixin Zheng, Qing Lai, Jianhua Zhu
  • Patent number: 10381639
    Abstract: A lithium secondary battery including a cathode, an anode, and a separation film installed between the cathode and the anode, wherein the cathode includes a cathode active material containing lithium-metal oxide of which at least one of the metals has a continuous concentration gradient region between a core part and a surface part thereof, and the separation film includes a base film, and a ceramic coating layer formed on at least one surface of the base film, such that the lifespan property is significantly improved, while exhibiting excellent penetration safety.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: August 13, 2019
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Kook-Hyun Han, Kyung-Bin Yoo, Duck-Chul Hwang
  • Patent number: 10340524
    Abstract: A negative electrode for a lithium battery, including a lithium metal; and a protective layer disposed on at least a part of the lithium metal, wherein the protective layer includes a block copolymer including a structural domain and a hard domain covalently linked to the structural domain, wherein the structural domain includes a structural block of the block copolymer, wherein the hard domain includes a hard block of the block polymer, wherein the structural block includes a plurality of structural repeating units, and wherein the hard block includes a plurality of olefin repeating units.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yonggun Lee, Toshinori Sugimoto, Yooseong Yang, Wonseok Chang, Hongsoo Choi
  • Patent number: 10307925
    Abstract: Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet (12b) being porous is conveyed, the separator original sheet (12b) into a plurality of separators (12a), including the steps of: (a) conveying the separator original sheet (12b) in a state where the separator original sheet (12b) is in contact with a roller (77); and (b) slitting the separator original sheet (12b) at a portion where the separator original sheet (12b) is in contact with the roller (77).
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 4, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koichiro Watanabe, Tatsuya Kataoka, Kiyomu Nomura
  • Patent number: 10270134
    Abstract: A method of manufacturing an electrode assembly includes a first step of forming one kind of a radical unit or at least two kinds of radical units having an alternately stacked structure of a same number of electrodes and separators; and a second step of forming a cell stack part by repeatedly stacking one kind of the radical units, or by stacking at least two kinds of the radical units. Edge of the separator is not joined with that of adjacent separator. One kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked together or a repeating structure in which the four-layered structure is repeatedly stacked, and at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: April 23, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Ji Won Park, Seung Jae You, Myung Hoon Ko, Jin Ho Ban, Hyang Mok Lee
  • Patent number: 10263255
    Abstract: A lithium secondary battery includes a cathode electrode, an anode electrode, and a separation film installed between the cathode electrode and the anode electrode, wherein the cathode electrode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a concentration gradient region between a core part and a surface part thereof, and the separation film includes a base film and a ceramic coating layer formed on at least one surface of the base film, such that it is possible to achieve a significantly improved effect in both of the lifespan property and penetration durability.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: April 16, 2019
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Kook-Hyun Han, Kyung-Bin Yoo, Duck-Chul Hwang
  • Patent number: 10243189
    Abstract: A separator includes a substrate layer and a porous surface layer that is provided on at least one major surface of the substrate layer and contains a first particle, a second particle, and a resin material. The surface layer includes a first region configured by the first particle and a second region configured by the second particle and the resin material.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: March 26, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Moriaki Okuno