Patents Examined by Sean P Cullen
  • Patent number: 11824225
    Abstract: The present disclosure provides a polymer separator and preparation method thereof, and a lithium-ion battery including the polymer separator and preparation method thereof. The polymer separator includes a porous substrate, a hydrophilic blocking layer, and a porous polar polymer bonding layer. The hydrophilic blocking layer is disposed between the porous substrate and the porous polar polymer bonding layer. Pore walls in the porous polar polymer bonding layer are provided with node structures.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: November 21, 2023
    Assignee: BYD COMPANY LIMITED
    Inventors: Lina Jin, Bowen Xuan, Xiaodong Cao, Jinxiang Wu, Jun Shan, Gang Hu, Long He
  • Patent number: 11820104
    Abstract: Aluminum alloy foil that, when used for battery packaging material, unlikely to develop pinholes or cracks even during molding of battery packaging material, and can exhibit excellent moldability. Aluminum alloy foil, which is for use in battery packaging material, wherein, with respect to cross section obtained by cutting aluminum alloy foil in vertical direction to rolling direction of aluminum alloy foil, which is a vertical direction to surface of aluminum alloy foil, proportion of total area of a {111} plane in total area of crystal planes of face-centered cubic structure, obtained by performing crystal analysis using EBSD method, is 10% or more; and with respect to cross section, a number average grain diameter R (?m) of crystals in face-centered cubic structure, obtained by performing crystal analysis using EBSD method, satisfies following equation: number average grain diameter R?0.056X+2.0, where X=thickness (?m) of aluminum alloy foil.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: November 21, 2023
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuko Takahagi, Tatsuro Ishitobi, Chiaki Hatsuta, Makoto Komukai, Mayo Sugano
  • Patent number: 11824158
    Abstract: A gel electrolyte composite containing a nonvolatile electrolyte and a zwitterionic polymer scaffold in which the non-volatile electrolyte is a non-lithium-containing ionic liquid, a sodium-containing ionic liquid, or a lithium-containing ionic liquid and the zwitterionic polymer scaffold is formed from one or more zwitterionic monomers only or both one or more zwitterionic monomers and one or more non-zwitterionic monomers. The zwitterionic polymer scaffold contains 8 mol % or higher of zwitterions relative to the total content of the gel electrolyte composite when the nonvolatile electrolyte is a non-lithium-containing ionic liquid, and contains 1 mol % or higher of zwitterions relative to the total content of the gel electrolyte composite when the nonvolatile electrolyte is a sodium-containing ionic liquid or a lithium-containing ionic liquid. Also disclosed are a method of preparing the above-described gel electrolyte composite and an electrochemical energy storage device containing same.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 21, 2023
    Assignee: Trustees of Tufts College
    Inventors: Anthony J. D'Angelo, Morgan Taylor, Matthew Panzer, Huan Qin
  • Patent number: 11804635
    Abstract: A separator comprising a crosslinked polyolefin substrate having a plurality of pores and an inorganic coating layer having internal pores formed on at least one surface of the crosslinked polyolefin substrate. The inorganic coating layer on the at least one surface of the crosslinked polyolefin substrate has internal pores formed by an immersion phase separation method, and a high power secondary battery including the same.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 31, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Su Rim Lee, Soon Hyung Choi, Seok Koo Kim
  • Patent number: 11804626
    Abstract: A battery module includes a battery cell stack in which a plurality of battery cells are stacked; and a first plate and a second plate disposed on one side and the other side of the battery cell stack, respectively, to discharge heat generated by the plurality of battery cells externally. The plurality of battery cells include a receiving portion having a quadrangular shape, and a sealing portion, partially disposed on an outer periphery of the receiving portion. The battery cell stack is provided, by alternately stacking, at least one first battery cell of which a surface on which the sealing portion is not disposed faces the first plate, and at least one second battery cell of which a surface on which the sealing portion is not disposed faces the second plate.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: October 31, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Ha Neul Choi, Seok Hwan Lee, Hae Ryong Jeon, Seung Hoon Ju
  • Patent number: 11804619
    Abstract: The invention relates to a solid polymer electrolyte for a battery comprising at least one polymer which solvates the cations of a lithium salt, at least one lithium salt and at least one specifically selected halogenated polymer, and also to the lithium batteries comprising such a solid polymer electrolyte, in particular LMP batteries.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: October 31, 2023
    Assignee: BLUE SOLUTIONS
    Inventors: Philippe Bernardo, Vincent Bodenez, Marc Deschamps, Mathieu Dru, Margaud Lecuyer
  • Patent number: 11799170
    Abstract: The present invention provides a method for the fabrication of a LaZrGa(OH)x metal hydroxide precursor with a co-precipitation method in a continuous TFR reactor. The present invention also provides a method for the fabrication of an ion-doped all-solid-state lithium-ion conductive material with lithium ionic conductivity, and mixing which in the polymer base material, using a doctor-blade coating method to prepare a free standing double layered and triple layered organic-inorganic hybrid solid electrolyte membrane. Furthermore, the present invention provides an all-solid-state lithium battery using the aforementioned hybrid solid electrolyte membrane and measure the electrochemical performance. The all-solid-state lithium battery may enhance the lithium ionic conductivity, and lower the interfacial resistance between the solid electrolyte membrane and the electrode, therefore the battery may have excellent performance, and prevent the lithium-dendrite formation effectively to enhance the safety.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: October 24, 2023
    Assignee: MING CHI UNIVERSITY OF TECHNOLOGY
    Inventors: Chun-Chen Yang, Yi-Shiuan Wu, Kumlachew Zelalem Walle
  • Patent number: 11791507
    Abstract: A lithium-ion battery system and a control method for combined internal and external heating are provided. A battery is heated in a low-temperature environment through combined internal and external heating. The energy released during self-heating of the battery is fully used, and rapid heating of the battery in the low-temperature environment is implemented. A current adjustment module in a heating module is controlled to adjust a switch on-off frequency and a current on-off time during the heating, and loops with different heating resistances in a multi-loop heating film are selected through a resistance adjustment switch. In this way, target heating requirements of the battery are met, such as a high heating rate in a low-temperature environment, low energy consumption during the heating, and a small impact on battery life without jeopardizing safety during the heating.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: October 17, 2023
    Assignee: BEIJING INSTITUTE OF TECHNOLOGY
    Inventors: Rui Xiong, Wanzhou Sun, Ruixin Yang, Xinggang Li
  • Patent number: 11791465
    Abstract: Methods of making a sintered electrode comprise forming a slurry including 40 wt % to 75 wt % of a powder comprising a chalcogenide and at least one of an alkali metal or an alkaline earth metal, 1 wt % to 10 wt % of a binder, and 30 wt % to 50 wt % of a solvent. Methods include casting the slurry into a green tape. Methods include drying the green tape to form a dried green tape by removing at least a portion of the solvent. The dried green tape includes at most 10 wt % of organic material in the dried green tape. Methods include sintering the dried green tape at a temperature from 500° C. to 1350° C. for no more than 60 minutes to form the sintered electrode.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: October 17, 2023
    Assignee: CORNING INCORPORATED
    Inventors: Michael Edward Badding, Ryan David Bayliss, Jennifer Anella Heine, Cameron Wayne Tanner
  • Patent number: 11784010
    Abstract: A capacitor-assisted electrode for an electrochemical cell that cycles lithium ions is provided. The capacitor-assisted electrode may include at least two electroactive materials disposed on one or more surfaces of a current collector. A first electroactive material of the at least two electroactive materials may have a first reversible specific capacity and forms a first electroactive material having a first press density. A second electroactive material of the at least two electroactive materials has a second reversible specific capacity and forms a second electroactive material having a second press density. The second reversible specific capacity may be different from the first reversible specific capacity. The second press density may be different from the first press density. One or more capacitor materials may be disposed on or intermingled with one or more of the at least two electroactive materials.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: October 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dewen Kong, Xiaochao Que, Meiyuan Wu, Si Chen, Haijing Liu, Mark W Verbrugge
  • Patent number: 11784377
    Abstract: The present disclosure relates to a separator and an electrochemical device including the same. The separator includes a porous coating layer formed on at least one surface of the porous polymer substrate, wherein the porous coating layer includes, as a binder polymer, an amorphous adhesive binder polymer, and at least one fluorinated binder polymer. It is possible to provide a separator which shows low resistance and significantly improved adhesion to an electrode, and an electrochemical device including the same.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: October 10, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: So-Mi Jeong, Young-Bok Kim, Je-An Lee
  • Patent number: 11769930
    Abstract: Provided is a separator for electricity storage devices, which comprises an active layer that contains a material (A) that is capable of absorbing lithium (Li), and which has an air permeability of 650 s/100 ml or less.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: September 26, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Masanori Nakazawa, Hiroshi Hatayama
  • Patent number: 11769866
    Abstract: Provided are a binder aqueous solution for a lithium-ion battery, a slurry for a lithium-ion battery negative electrode, a negative electrode for a lithium-ion battery, and a lithium-ion battery. The binder aqueous solution for a lithium-ion battery contains a water-soluble poly(meth)acrylamide (A). The water-soluble poly(meth)acrylamide (A) is a polymer of a monomer group containing, with respect to 100 mol % of the monomer group, 30 mol % to 95 mol % of a (meth)acrylamide group-containing compound (a), and 5 mol % to 40 mol % of an alkoxyalkyl (meth)acrylate (b) represented by the following general formula (1), CH2?C(R1)—CO—O—R2—O—R3??(1) (in which R1 is a hydrogen atom or a methyl group, R2 is an alkylene group having 1 to 4 carbon atoms, R3 is an alkyl group having 1 to 4 carbon atoms, and a total number of carbon atoms of the groups R1, R2 and R3 is 5 or less.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: September 26, 2023
    Assignee: ARAKAWA CHEMICAL INDUSTRIES, LTD.
    Inventors: Katsuhiko Ikeyatsu, Shinji Ozaki, Hideki Goda
  • Patent number: 11764359
    Abstract: A binder for a nonaqueous battery electrode, the nonaqueous battery electrode using the binder for the nonaqueous battery electrode, and a nonaqueous battery. The binder for a nonaqueous battery electrode contains a copolymer (P) of an ethylenically unsaturated monomer (A) essentially containing a styrene-based monomer (a1) and a (meth)acrylate ester (a2), and a surfactant (B1) having an ethylenically unsaturated bond, wherein the total amount of structure units derived from the surfactant (B1) having the ethylenically unsaturated bond in the copolymer (P) and the surfactant (B2) not contained in the copolymer (P) is 0.10 to 1.00 parts by mass based on 100 parts by mass of the copolymer (P). Also disclosed is a method for producing the binder.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 19, 2023
    Assignee: RESONAC CORPORATION
    Inventors: Junya Uchiyashiki, Mitsuru Hanasaki, Tomonori Kurata
  • Patent number: 11764405
    Abstract: In a lithium ion secondary battery element, a positive electrode and a negative electrode are overlapped on each other so that a positive electrode active material layer with a generally rectangular shape in the positive electrode and a negative electrode active material layer with a generally rectangular shape in the negative electrode are overlapped on each other substantially perfectly and a positive electrode active material non-applied part of the positive electrode and a negative electrode active material non-applied part of the negative electrode are positioned on opposing sides of the rectangle. A border part between the negative electrode active material applied part and the negative electrode active material non-applied part is positioned closer to a peripheral side of a negative electrode current collector than a peripheral part of a positive electrode current collector.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: September 19, 2023
    Assignee: AESC Japan Ltd.
    Inventors: Yosuke Kita, Aika Kimura, Toshihiro Horiuchi
  • Patent number: 11757098
    Abstract: A negative electrode includes a current collector and a negative electrode active material layer that is provided on the current collector and includes a negative electrode active material. The negative electrode active material includes a carbon material, and a surface of the negative electrode active material layer has a spectral reflectance Ra in a range of 7.0?Ra?10.8% at a wavelength of 550 nm.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: September 12, 2023
    Assignee: TDK CORPORATION
    Inventors: Keitaro Otsuki, Tetsu Sato, Masahiro Saegusa
  • Patent number: 11749868
    Abstract: The present invention relates to a separator capable of inhibiting the growth of lithium dendrites, and a lithium secondary battery including the same. According to the present invention, the stability and life cycle characteristic of a lithium secondary battery can be remarkably improved.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: September 5, 2023
    Assignee: LG Energy Solution, Ltd.
    Inventor: Jeongbeom Lee
  • Patent number: 11735747
    Abstract: An electrode structure of a flow battery. A density of the vertical tow in the electrode fiber is larger than the density of the parallel tow. In the electrode fiber per unit volume, the quantity ratio of the vertical tow to the parallel tow is at least 6:4. The electrode structure includes an odd number of layers of the electrode fibers, and the porosity of other layers is larger than that of the center layer. The electrode structure includes the vertical tows, so that, the contact area between the outer surface of the electrode and the adjacent component is increased and the contact resistance is reduced; the electrode has good mechanical properties; the contact resistance of such structure is reduced by 30%-50%; and the layers of the electrode have different thickness depending on the porosity. After compression, the layers with optimized thickness have a consistent porosity.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: August 22, 2023
    Assignee: DALIAN RONGKEPOWER CO., LTD
    Inventors: Shenglin Liu, Hongdong Jiang, Huamin Zhang, Xiangkun Ma, Tao Zhang, Shan Jiang, Zhenkun Yang, Dan Sun, Kuanrong Yi
  • Patent number: 11728479
    Abstract: [Problem] Provided is a silicon oxide-based negative electrode material capable of avoiding, as much as possible, decreased battery performance resulting from a heterogeneous distribution of a Li concentration. [Solution] Provided is a powder having an average composition of SiLixOy wherein 0.05<x<y<1.2 and a mean particle size of 1 ?m or more. Further, 10 particles randomly selected from particles of the powder each satisfy 0.8<L1/L2<1.2 with the standard deviation of L2 being 0.1 or less, L1 being a Li concentration at a depth of 50 nm from an outermost surface of each of the 10 particles, and L2 being a Li concentration at a depth of 400 nm from the outermost surface.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: August 15, 2023
    Assignee: OSAKA TITANIUM TECHNOLOGIES CO., LTD.
    Inventor: Yusuke Kashitani
  • Patent number: 11728511
    Abstract: A solid-state electrolyte for a lithium battery that includes a hard-inorganic electrolyte and at least two soft electrolytes (SEs), where the melting point of the solid-state electrolyte is less than the melting point of a highest melting SE included in the solid-state electrolyte. The SEs include ammonium or phosphonium salts of closo-borates and can include lithium closo-borates salts. The hard-inorganic electrolyte is a lithium thiophosphate (LPS), where the plurality of SEs is melt-diffused throughout the homogeneous combined hard-inorganic electrolyte and a plurality of SEs at a temperature below the highest melting point SE, generally below 100° C. The relative density of the solid-state electrolyte is greater than 90 percent.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: August 15, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Timothy S. Arthur, Nikhilendra Singh, Rana Mohtadi, Oscar Tutusaus