Electrode Patents (Class 429/209)
  • Patent number: 11575148
    Abstract: A porous film, including a binder and inorganic particles. The porous film includes pores formed by the binder. The pores at least include a part of the inorganic particles. The inorganic particles have particle sizes that Dv10 is in a range of 0.015 ?m to 3 ?m, Dv50 is in a range of 0.2 ?m to 5 ?m, and Dv90 is in a range of 1 ?m to 10 ?m. Dv10 of the inorganic particles is less than Dv50 of the inorganic particles, and Dv50 of the inorganic particles is less than Dv90 of the inorganic particles, and the inorganic particles have particle sizes that the ratio of Dv90 to Dv10 is in a range of 2 to 100.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: February 7, 2023
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Jianjian Yi, Xinzhi Zhang, Zengbin Wei, Xinghua Tao
  • Patent number: 11539039
    Abstract: A negative electrode for a lithium secondary battery, in which a LiF layer comprising amorphous LiF in an amount of 30 mol % or more is formed on a negative electrode active material layer comprising a carbon-based active material, a lithium secondary battery comprising the same, and a preparation method thereof.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: December 27, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Oh Byong Chae, Eun Kyung Kim, Dong Sub Jung, Sang Wook Woo, Ju Ho Chung, Hee Won Choi
  • Patent number: 11522185
    Abstract: A rechargeable lithium battery includes a positive electrode including a positive current collector and a positive active material layer disposed on the positive current collector; and a negative electrode including a negative current collector, a negative active material layer disposed on the negative current collector, and a negative electrode functional layer disposed on the negative active material layer, wherein the positive active material layer includes a first positive active material including at least one of a composite oxide of metal selected from cobalt, manganese, nickel, and a combination thereof and lithium and a second positive active material including at least one of compounds represented by Chemical Formula 1 to Chemical Formula 4, and the negative electrode functional layer includes flake-shaped polyethylene particles and Lix2Mn1-y2M?y2A2??[Chemical Formula 1] Lix2Mn1-y2M?yO2-z2Xz2??[Chemical Formula 2] Lix2Mn2O4-z2Xz2??[Chemical Formula 3] Lix2Mn2-y2M?y2M?z2A4??[Chemical Formula 4]
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: December 6, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jaehwan Ha, Kijun Kim, Heeeun Yoo, Yeonhee Yoon, Kyuseo Lee, Dongmyung Lee
  • Patent number: 11515568
    Abstract: The disclosure provides a laminated battery that can realize a laminated structure in which electrode composite material portions are not displaced, can simplify the manufacturing process, and has improved production yield, and provides a manufacturing method thereof. A positive electrode structure and a negative electrode structure in comb shapes are respectively produced with electrode composite material layers positioned in advance, and these are fitted to produce a laminate serving as a battery.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 29, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Wataru Shimizu, Masahiro Ohta, Toru Sukigara
  • Patent number: 11489348
    Abstract: A battery management system comprising: at least one battery comprising two or more sets of cells, each set of cells comprising one or more cells; a multiplexing switch apparatus connected to each set of cells; and at least one controller configured to use the multiplexing switch apparatus to selectively discharge the sets of cells based on at least one criterion. A battery pack comprising: at least one battery comprising two or more sets of cells, each set of cells comprising one or more cells; and an integrated switching control system comprising at least one switch connected to each set of cells, wherein the integrated switching control system is configured to control the at least one switch to discharge the sets of cells sequentially or selectively based on at least one criterion. A battery management method or a battery pack control method.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: November 1, 2022
    Assignee: Sion Power Corporation
    Inventors: Yuriy V. Mikhaylik, Glenn Alan Hamblin, Chariclea Scordilis-Kelley, John Joseph Christopher Kopera
  • Patent number: 11482697
    Abstract: A method for manufacturing a solventless multilayered electrode may include mixing electrode particles with binders to form dry electrode mixtures, compressing the dry electrode mixtures to form electrode films, stacking the electrode films, and compressing the stacked electrode films. Suitable electrode films may include active material particles, conductive particles, electrochemically inactive ceramic particles, and/or the like. In some examples, compressing the stacked electrode films may include compressing the electrode films between pairs of rollers having patterns disposed on one or more exterior surfaces, thereby increasing surface roughness of the electrode films. A system for manufacturing solventless multilayered electrodes may comprise a first plurality of rollers configured to compress dry electrode mixes into electrode films, and a second plurality of rollers configured to compress a stack of electrode films into a single electrode stack.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: October 25, 2022
    Assignee: EnPower, Inc.
    Inventor: Adrian Yao
  • Patent number: 11469405
    Abstract: A method for manufacturing an electrode for a secondary battery includes: applying a first layer slurry containing a first binder to a surface of a current collector, applying a second layer slurry containing a second binder on the first layer slurry before the first layer slurry is dried, and drying the first layer slurry and the second layer slurry after applying the first layer slurry and the second layer slurry to obtain a laminated structure in which a first layer and a second layer are laminated in this order on the current collector. The second layer slurry has a solid content ratio of more than 50% by mass and a composition ratio of the second binder of more than 2% by mass.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 11, 2022
    Assignee: NEC CORPORATION
    Inventors: Noboru Yoshida, Makihiro Otohata
  • Patent number: 11462730
    Abstract: According to one embodiment, an electrode is provided. The active material-containing layer includes an active material, inorganic solid particles having lithium ion conductivity, and carbon fiber. A pore diameter DM at the first peak is 0.05 ?m to 10 ?m. A value SA?SB is 1.4 or more in a slope distribution curve of the active material-containing layer, where a vertical axis of the slope distribution curve represents a slope of a straight line passing through two adjacent measurement points on the log differential pore volume distribution curve and a horizontal axis of the slope distribution curve represents a smaller pore diameter of the two adjacent measurement points. The value SA?SB is obtained by subtracting a minimum slope value SB from a maximum slope value SA.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 4, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoe Kusama, Tetsuya Sasakawa, Kazuomi Yoshima, Tomoko Sugizaki, Wen Zhang, Yasuhiro Harada, Norio Takami
  • Patent number: 11456447
    Abstract: A predoping method for a negative electrode active material to dope the negative electrode active material with lithium ions. The predoping method for a negative electrode active material includes: a predoping process and a post-doping modification process. In the predoping process, the negative electrode active material is doped with lithium ions, to thereby reduce a potential of the negative electrode active material relative to lithium metal. In the post-doping modification process, after the predoping process, reaction is caused between a reactive compound that is reactive with lithium ions and lithium ions doped into the negative electrode active material, to thereby increase the potential of the negative electrode active material relative to lithium metal. The potential of the negative electrode active material relative to lithium metal is 0.8 V or more at completion of the post-doping modification process.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 27, 2022
    Assignees: NISSAN MOTOR CO., LTD., JSR Corporation
    Inventors: Shotaro Doi, Yuki Kusachi, Noboru Yamauchi, Tomohiro Kaburagi, Hideaki Horie, Yusuke Nakashima, Kazuya Tsuchida, Naofumi Shoji, Koji Sumiya, Shigehito Asano, Yasuyuki Koga, Nobuo Ando, Terukazu Kokubo
  • Patent number: 11437649
    Abstract: Separator and electrolyte composites include a porous self-supporting separator film between or adjacent one or two electrolyte films. The electrolyte films may contain a glyme or mixture of glymes, LiX salt and complexing agent, such as PEO. The porous self-supporting separator film may be used dry or wetted with a liquid electrolyte composition. Solid state batteries include the described separator and electrolyte composites in combination with an anode and a cathode.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: September 6, 2022
    Assignee: Medtronic, Inc.
    Inventors: Hui Ye, Timothy T. Bomstad, Parthasarathy M. Gomadam, Gaurav Jain, Christian S. Nielsen, Prabhakar A. Tamirisa, Collette M. VanElzen
  • Patent number: 11430985
    Abstract: According to one embodiment, an electrode is provided. A length of a first active material portion along a first direction is within a range of 0.7T or more and 0.95T or less with respect to a thickness T of an active material-containing layer. The first direction is parallel to a thickness direction. A second active material portion further contains solid electrolyte particles. A ratio E1/E2 is 0 or more and 0.01 or less. The ratio E1/E2 represents a ratio of a content E1 of the solid electrolyte particles per unit area in the first active material portion (including 0) to a content E2 of the solid electrolyte particles per unit area in the second active material portion.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: August 30, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Keigo Hoshina, Kazuomi Yoshima, Tomoko Sugizaki, Tomoe Kusama, Tetsuya Sasakawa, Yasuhiro Harada, Norio Takami
  • Patent number: 11430987
    Abstract: Disclosed are an electrode for a rechargeable lithium battery and a rechargeable lithium battery. The electrode includes a current collector, a first active material layer, and a second active material layer. The first active material layer is formed on the current collector and includes a first active material. The second active material layer is formed on the first active material layer. The second active material layer includes a second active material having an active material and a meltdown polymer disposed on the surface of the active material.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: August 30, 2022
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kyuseo Lee, Heeeun Yoo, Yeonhee Yoon, Jaehwan Ha, Kijun Kim
  • Patent number: 11431018
    Abstract: A non-aqueous electrolyte secondary battery includes at least a positive electrode active material layer, a porous film, and a negative electrode active material layer. The negative electrode active material layer contains at least a graphite-based carbon material and silicon oxide. The porous film is interposed between the positive electrode active material layer and the negative electrode active material layer. The porous film contains at least a ceramic material. The negative electrode active material layer has a first spring constant. The porous film has a second spring constant. A ratio of the second spring constant to the first spring constant is higher than 1.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 30, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Torita, Hideaki Fujita, Kaoru Inoue
  • Patent number: 11431031
    Abstract: An all-solid-state battery configured to suppress capacity degradation. The all-solid-state battery may comprise a stack of a cathode layer, a solid electrolyte layer and an alloy-based anode layer, and a confining structure confining the stack in an approximately parallel direction to a stacking direction, wherein the cathode layer has a cathode plane on a side facing the solid electrolyte layer; wherein the alloy-based anode layer has an anode plane on a side facing the solid electrolyte layer; wherein the cathode plane and anode plane of the stack have a long axis direction and a short axis direction; and wherein at least one of the cathode plane and the anode plane has one or more slit channels.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 30, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomoya Suzuki, Shigetada Sugiyama, Yoshihide Enomoto
  • Patent number: 11380889
    Abstract: Disclosed are an electrode for a rechargeable lithium battery and a rechargeable lithium battery. The electrode includes a current collector, a first active material layer, and a second active material layer. The first active material layer is formed on the current collector and includes a first active material. The second active material layer is formed on the first active material layer. The second active material layer includes a second active material having an active material and a meltdown polymer disposed on the surface of the active material.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: July 5, 2022
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kyuseo Lee, Heeeun Yoo, Yeonhee Yoon, Jaehwan Ha, Kijun Kim
  • Patent number: 11380940
    Abstract: A method for manufacturing a nonaqueous electrolyte secondary battery, when an electrode tab is provided at a longitudinal-direction end portion of an electrode located at a winding-start side of an electrode body, the method being capable of sufficiently reducing damage on a separator and the electrode in a process for manufacturing the electrode body. In a manufacturing step of one example of an embodiment, a negative electrode tab is bonded to a longitudinal-direction end portion of a negative electrode to be located at a winding-start side of an electrode body, the negative electrode tab is processed so that a width-direction central portion of the negative electrode tab at least bulges toward a winding-outer side of the electrode body, and while a gap is formed between the negative electrode tab and a winding core, a positive electrode, the negative electrode, and a separator are wound around the winding core.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 5, 2022
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takanori Kitagawa, Tomomichi Ueda, Koichi Kusagawa
  • Patent number: 11367876
    Abstract: Provided are a copper foil for a secondary battery, which has excellent oxidation resistance without having to use chromium and has excellent adhesion to an active material layer after being processed to an electrode current collector, a method of manufacturing the copper foil, and a secondary battery including the copper foil. In the copper foil for a secondary battery, a styrene butadiene rubber (SBR) layer is formed on a surface of an electro-deposited copper foil.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: June 21, 2022
    Inventors: Hyung-Seok Han, Jae-Won Moon, Hyung-Kyun Yu, Ki-Hoon Paeng
  • Patent number: 11342558
    Abstract: An electrochemically active material comprising a surface is provided, wherein the surface comprises an oligomer. A method of functionalising the surface with the oligomer is also provided.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: May 24, 2022
    Assignee: Nexeon Limited
    Inventors: Jonathon David Speed, Scott Brown, Simon Foxon
  • Patent number: 11332588
    Abstract: A process for the modification of a surface of a solid material having the step of contacting the surface with a surface-modifying composition under irradiation with light of a wavelength in the range of 200 to 800 nm, optionally in the presence of a photoinitiator, wherein the solid material is chosen from the group consisting of polyesters, polyethers, polycarbonates, polyketones polyamides, polyurethanes, (meth)acrylate and (meth)acrylamide polymers and polyetherimides and wherein the surface modifying composition includes at least a hydrosilane.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: May 17, 2022
    Assignee: SURFIX B.V.
    Inventors: Rui Pedro Rijo Da Costa Carvalho, Janneke Veerbeek, Johannes Teunis Zuilhof, Wout Knoben, Luc Maria Wilhelmus Scheres
  • Patent number: 11289694
    Abstract: The invention refers to negative electrode plate, preparation method thereof and electrochemical device. The negative electrode plate comprises: a negative current collector, a negative active material layer, and an inorganic dielectric layer which are provided in a stacked manner; the negative active material layer comprises opposite first surface and second surface, wherein the first surface is disposed away from the negative current collector; the inorganic dielectric layer is disposed on the first surface of the negative active material layer. The negative electrode plate provided by the application is useful in an electrochemical device, and can result in an electrochemical device having simultaneously excellent safety performance and cycle performance.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 29, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Huafeng Huang, Changliang Sheng, Cheng Li, Qisen Huang
  • Patent number: 11276878
    Abstract: A lithium ion secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes a cyclic compound and the cyclic compound includes one or more of a first cyclic compound, a second cyclic compound, and a third cyclic compound.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 15, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yuichiro Asakawa, Shinichi Uesaka, Antoine Lafleur-Lambert, Karim Zaghib
  • Patent number: 11223050
    Abstract: The present application provide a spliced lithium strip, preparation method thereof, and related negative electrode plate, battery core, lithium ion battery, battery module, battery pack and apparatus. The spliced lithium strip is formed by splicing two or more base lithium strips, wherein the base lithium strip has a thickness fluctuation of less than 5%; the spliced lithium strip has a spliced area and a non-spliced area alternately distributed along the splicing direction, and the spliced area has a maximum thickness H and the non-spliced area has a minimum thickness L, satisfying ? H - L ? L × 1 ? 0 ? 0 ? % ? 6 ? % .
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: January 11, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Bin Xie, Shitong Chen, Zhijie Gong
  • Patent number: 11223065
    Abstract: A solid electrolyte includes a matrix including, as a salt, containing a metal halide containing an alkaline-earth metal and a metal, and at least one filler located in the matrix.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: January 11, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Norihito Fujinoki
  • Patent number: 11217780
    Abstract: The present invention relates to a method for manufacturing a secondary battery and a secondary battery using the same, which can improve the quality of a cut surface of an electrode plate and improve the reliability of the secondary battery. For example, disclosed is a method for manufacturing a secondary battery, the method comprising: an active material layer forming step of forming an active material layer by coating an active material on both surfaces of a collector plate; an active material layer removing step of removing a part of the active material layer by irradiating a laser beam to the both surfaces of the collector plate; and a cutting step of cutting the collector plate by irradiating a laser beam onto the collector plate from which the active material layer has been removed in the active material layer removing step.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: January 4, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jung Hyuck Choi, Won Shik Park
  • Patent number: 11211594
    Abstract: The present application relates to a composite current collector, and a composite electrode and an electrochemical device comprising the same. The composite current collector of the present application comprises an intermediate layer, a first metal layer, a second metal layer, and a through hole. The intermediate layer has a first surface and a second surface opposite to the first surface, the first metal layer is disposed on the first surface, and the second metal layer is disposed on the second surface. The through hole penetrates through the intermediate layer, the first metal layer and the second metal layer, wherein the through hole is filled with an electrically insulated ionic conductor.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: December 28, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Yibo Zhang, Xiang Li, Bin Wang, Qiaoshu Hu
  • Patent number: 11196022
    Abstract: Embodiments of the present application provide a package structure and a display device including package structure. The package structure includes a graphene layer and a graphene oxide layer which are disposed in a stack. In the package structure according to the embodiments of the present application, the graphene oxide layer is stacked on the graphene layer.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: December 7, 2021
    Assignee: Yungu (Gu'an) Technology Co., Ltd.
    Inventors: Jiamei Du, Jinqiang Liu, Yaoyan Wu, Zhenhua Xing
  • Patent number: 11196122
    Abstract: A battery module includes a battery cell stack in which a plurality of battery cells are stacked; a plate disposed to contact the plurality of battery cells on a side surface of the battery cell stack and disposed in a direction parallel to a stacking direction of the plurality of battery cells included in the battery cell stack; and an adhesive layer applied to the plate to contact the battery cell stack and the plate. A battery pack can include the battery module.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: December 7, 2021
    Inventors: Woo Seung Jeong, Young Bum Cho, Youngho Jung, Cheol Yung Kim
  • Patent number: 11189818
    Abstract: Electrolyte dispensing systems according to embodiments of the present technology may include a housing defining an internal volume. The housing may define an inlet and an outlet. The dispensing system may include an inlet roller positioned proximate the housing inlet. The inlet roller may be configured to provide a substantial seal at the housing inlet when a substrate is delivered into the housing. The dispensing system may include a delivery device positioned between the housing inlet and housing outlet. The delivery device may be configured to supply an electrolyte to the substrate delivered into the housing. The electrolyte dispensing system may also include an outlet roller positioned proximate the housing outlet. The outlet roller may be configured to provide a substantial seal at the housing outlet when the substrate is delivered from the housing.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 30, 2021
    Inventor: Tobias Zeilinger
  • Patent number: 11189820
    Abstract: The present invention relates to a method for manufacturing a secondary battery and a secondary battery using the same, which can improve the quality of a cut surface of an electrode plate and improve the reliability of the secondary battery. For example, disclosed is a method for manufacturing a secondary battery, the method comprising: an active material layer forming step of forming an active material layer by coating an active material on both surfaces of a collector plate; an active material layer removing step of removing a part of the active material layer by irradiating a laser beam to the both surfaces of the collector plate; and a cutting step of cutting the collector plate by irradiating a laser beam onto the collector plate from which the active material layer has been removed in the active material layer removing step.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: November 30, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jung Hyuck Choi, Won Shik Park
  • Patent number: 11167990
    Abstract: A compound of Formula I: NaxMnaMb(PO4??)3??(I) wherein M is V, Nb, Ga, Cr, Ti, Zr, or a combination thereof, a is equal to or greater than 0.8 to equal to or less than 1.5, b is equal to or greater than 0.5 to equal to or less than 1.2, x is greater than 0 to equal to or less than 4, ? is equal to or greater than 0 to equal to or less than 1, and a sum of a and b is 2.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: November 9, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Yan Wang, Dong-Hwa Seo, Jingyang Wang, Gerbrand Ceder
  • Patent number: 11165090
    Abstract: A method of forming a battery electrode includes spraying a suspension of nanoparticle sized metal oxide to create an active layer.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 2, 2021
    Assignee: HHeLi, LLC
    Inventors: Paige L. Johnson, James Dean Fleetwood, II
  • Patent number: 11158851
    Abstract: An electrode for an electrochemical device has a coated portion in which an active material layer is formed on a current collector; a non-coated portion in which the active material layer is not formed; and a resin layer that is laminated such that the coated portion and a portion of the non-coated portion are covered; wherein: the resin layer has a high-permeability portion having high ion permeability and positioned on the coated portion; a low-permeability portion having low ion permeability and positioned on a portion of the non-coated portion; and a transition portion in which ion permeability decreases from the high-permeability portion side toward the low-permeability portion side and positioned between the high-permeability portion and the low-permeability portion.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 26, 2021
    Assignee: Envision AESC Energy Devices Ltd.
    Inventors: Masanori Hirai, Kazuya Mimura
  • Patent number: 11158846
    Abstract: The invention refers to negative electrode plate, preparation method thereof and electrochemical device. The negative electrode plate comprises: a negative current collector; a negative active material layer disposed on at least one surface of the negative current collector, the negative active material layer comprising opposite first surface and second surface, wherein the first surface is disposed away from the negative current collector; and an inorganic dielectric layer consisting of an inorganic dielectric material disposed on the first surface of the negative active material layer. The negative electrode plate provided by the application is useful in an electrochemical device, and can result in an electrochemical device having simultaneously excellent safety performance and cycle performance.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: October 26, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Changliang Sheng, Huafeng Huang, Qisen Huang
  • Patent number: 11145851
    Abstract: A lithium battery includes a cathode, a composite lithium metal anode, and an electrolyte in contact with the cathode and the composite lithium metal anode. The composite lithium metal anode includes a porous matrix and lithium metal disposed within the porous matrix.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: October 12, 2021
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Yi Cui, Zheng Liang, Yayuan Liu, Dingchang Lin
  • Patent number: 11108069
    Abstract: A method for manufacturing a membrane electrode assembly for a fuel cell, in which uniform pressure is applied to the entire area of an electrode during a transferring process to ensure uniformity of products. The method includes an electrode forming step of forming an electrode layer by coating an electrode slurry on a support; a transferring step of aligning the electrode layer on both surfaces of an electrolyte membrane and applying heat and pressure to transfer the electrode layer; and removing the support, wherein in the transferring step, gas pressure is applied to a gas pressure platen of a stretchable material to transfer the electrode layer to the electrolyte membrane.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 31, 2021
    Inventors: Jin-Hwa Lee, Jun-Young Kim
  • Patent number: 11101528
    Abstract: A lithium ion secondary battery that includes a positive electrode, a negative electrode, a separator, a nonaqueous electrolytic solution, and a PTC layer between a positive electrode mixture layer and a positive electrode current collector and/or between a negative electrode mixture layer and a negative electrode current collector, the PTC layer having a positive temperature coefficient of resistance. The PTC layer contains nonconductive filler particles, and the electronic resistance at 120° C. is equal to or more than 100 times the electronic resistance at room temperature.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 24, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Masato Fujioka
  • Patent number: 11094940
    Abstract: The present disclosure provides a polymer binder for a secondary battery electrode, which serves as a binder for a carbon-coated lithium iron phosphate (c-LiFePO4) electrode and is a copolymer containing a hard segment capable of hydrogen bonding in the electrode and a soft segment having a polyol structure. Also, the present disclosure provides a secondary battery electrode and a lithium secondary battery containing the same, wherein a nonaqueous electrolyte solution is applied to an electrode mixture containing the binder for an electrode.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 17, 2021
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jang Wook Choi, Yong Hee Lee
  • Patent number: 11088388
    Abstract: Disclosed is a clamping member and a battery module using the same. The clamping member includes a pair of pressing units configured to respectively press an upper plate and a lower plate of a battery assembly in which a plurality of batteries is stacked, so that a stacking structure of the battery assembly is fixed, and a support unit configured to support the pair of pressing units so that the upper plate and the lower plate of the battery assembly are pressed by the pair of pressing units, wherein at least one of the pair of pressing units includes a snap-fitting portion coupled to the upper plate or the lower plate by means of snap-fitting, and a screwing portion coupled to the upper plate or the lower plate coupled to the snap-fitting portion, by means of screwing, thereby fixing the battery stacking structure with excellent space efficiency, ensuring easy assembling of the battery module and improving durability of the battery module.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: August 10, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyuk An, Gang-U Lee, Jun-Kyu Park
  • Patent number: 11075403
    Abstract: The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing Li7La3Zr2O12 (LLZ) garnet powder including preparing a mixture by first dry mixing Li2CO3, La2O3, ZrO2, and Al2O3. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000° C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 ?m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300° C.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: July 27, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ju Young Sung, Ho Taek Lee, Eun Ji Kwon, Yong Jun Jang, Ji Na Kim
  • Patent number: 11067807
    Abstract: Smart glasses taking a proportion of power it requires from ambient light includes a plurality of lenses, a frame structure connected to the plurality of lenses, a display module disposed in at least one of the plurality of lenses, a battery disposed in the frame structure, and a processor electrically connected to the display module and the battery. The display module includes display units arranged in a matrix. Each display unit comprises at least one micro LED unit, and at least one first optical photoelectric conversion unit for converting solar energy into electrical power. The battery is electrically connected to the display module.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 20, 2021
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Kwang-Pi Lee, Chi-An Chen
  • Patent number: 11056682
    Abstract: Provided is a positive electrode active material particle including a core that includes lithium cobalt oxide represented by the following Chemical Formula 1; and a shell that is located on the surface of the core and includes lithium cobalt phosphate represented by the following Chemical Formula 2, wherein the shell has a tetrahedral phase: LiaCo(1-x)MxO2-yAy??(1) wherein M is at least one of Ti, Mg, Zn, Si, Al, Zr, V, Mn, Nb, or Ni, A is oxygen-substitutional halogen, and 0.95?a?1.05, 0?x?0.2, 0?y?0.2, and 0?x+y?0.2, LibCoPO4??(2) wherein 0?b?1.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: July 6, 2021
    Inventors: Younguk Park, Chi Ho Jo, Bo Ram Lee, Sungbin Park, Hyuck Hur, Wang Mo Jung
  • Patent number: 11043709
    Abstract: A metal-air battery including an anode layer; a solid electrolyte layer; and a cathode layer directly contacting the solid electrolyte layer. The solid electrolyte layer and the cathode layer are a single unitary and indivisible body with no physical interlayer boundary between the solid electrolyte layer and the cathode layer. A portion of the cathode layer may be within the solid electrolyte layer. The cathode layer may protrude from the solid electrolyte layer. The method of manufacturing a metal-air battery may include forming a solid electrolyte layer on an anode layer and chemically reducing solid electrolyte in a part of the solid electrolyte layer.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunpyo Lee, Hyukjae Kwon, Sangbok Ma, Heungchan Lee, Dongmin Im, Wonsung Choi
  • Patent number: 11043660
    Abstract: A positive electrode active material which can improve cycle characteristics of a secondary battery is provided. Two kinds of regions are provided in a superficial portion of a positive electrode active material such as lithium cobaltate which has a layered rock-salt crystal structure. The inner region is a non-stoichiometric compound containing a transition metal such as titanium, and the outer region is a compound of representative elements such as magnesium oxide. The two kinds of regions each have a rock-salt crystal structure. The inner layered rock-salt crystal structure and the two kinds of regions in the superficial portion are topotaxy; thus, a change of the crystal structure of the positive electrode active material generated by charging and discharging can be effectively suppressed.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: June 22, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teruaki Ochiai, Takahiro Kawakami, Mayumi Mikami, Yohei Momma, Masahiro Takahashi, Ayae Tsuruta
  • Patent number: 11031632
    Abstract: The present invention relates to a method for recovering a positive electrode active material from a lithium secondary battery including: 1) separating a positive electrode into a collector and a positive electrode part; 2) removing an organic substance by firing the separated positive electrode part; 3) washing the fired resultant and removing remaining fluorine (F); 4) adding a lithium-containing material into the washed resultant and firing to recover a lithium transition metal oxide.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 8, 2021
    Inventors: Dong Hun Lee, Dae Jin Lee, Ji Hoon Ryu, Gi Beom Han, Dong Hwi Kim, Wang Mo Jung, Sang Wook Lee, Eun Sol Lho
  • Patent number: 11031597
    Abstract: A negative electrode material for a lithium-ion secondary battery contains graphitic particles of which a standard deviation of circularity at a cumulative frequency ranging from 10% by particle to 90% by particle from the lower circularity, determined by a flow-type particle analyzer, is from 0.05 to 0.1.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 8, 2021
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Kento Hoshi, Hideyuki Tsuchiya, Tsutomu Satoh
  • Patent number: 11031585
    Abstract: To provide: coated nickel-based lithium-nickel composite oxide particles which are able to be handled in the atmosphere and enable the achievement of a coating film of a lithium ion conductor having no adverse effects on battery characteristics; and a method for producing the coated nickel-based lithium-nickel composite oxide particles.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 8, 2021
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventor: Yosuke Ota
  • Patent number: 11024872
    Abstract: The present disclosure provides a cathode material, a method for preparing the same, a cathode and lithium ion battery having the same. The cathode material includes an active component; and a sodium salt dispersed in the active component.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 1, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Pengwei Chen, Meng Wang, Leimin Xu, Liang Wang
  • Patent number: 11018391
    Abstract: A battery cell, which includes an electrode assembly, a battery case configured to accommodate the electrode assembly, and two pairs of electrode leads provided at outer surfaces of the battery case and connected to the electrode assembly, is provided.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: May 25, 2021
    Assignee: LG CHEM, LTD.
    Inventor: Ju-Hyun Kang
  • Patent number: 10991945
    Abstract: An electrode active material for non-aqueous secondary batteries containing a compound represented by formula (1) is a material that is less likely to dissolve in an electrolyte during charge and discharge, and that exhibits an excellent discharge capacity and excellent charge-and-discharge cycle characteristics: the compound represented by formula (1) wherein Y1 and Y2 are identical or different and represent an oxygen atom, a sulfur atom, or a selenium atom, R1 to R8 are identical or different and represent an oxygen atom or a group represented by —OLi, R9 to R12 are identical or different and represent a hydrogen atom or an organic group, and bonds that are each represented by a solid line and a dashed line indicate a single bond or a double bond.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: April 27, 2021
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaru Yao, Hisanori Ando
  • Patent number: 10964939
    Abstract: A positive electrode for electrochemical device includes a positive current collector and a positive electrode material layer supported on the positive current collector. The positive electrode material layer includes a positive electrode active material. The positive electrode active material includes an inner core portion containing polyaniline and a surface layer portion containing poly(3,4-ethylenedioxythiophene) and polythiophene. The inner core portion is fibrous or grain-aggregate, and the surface layer portion covers at least a part of the inner core portion. Furthermore, an electrochemical device includes the above-described positive electrode, a negative electrode including a negative electrode material layer that occludes and releases a lithium ion, and a nonaqueous electrolytic solution having lithium ion conductivity.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 30, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Kiyohiro Ishii