Electrode Patents (Class 429/209)
  • Patent number: 11909030
    Abstract: A lithium secondary battery includes a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separation layer interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide in which at least one metal forms a concentration gradient. The second cathode active material particle includes primary particles having different shapes or crystalline structures from each other.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: February 20, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Min Gu Kang, Soo Ho Kim, Young Hoon Do, Yong Hyun Cho
  • Patent number: 11901502
    Abstract: An electrode stack is described. The electrode stack may include an anode electrode having an anode current collector, and an anode active material disposed on the anode current collector. The anode electrode may define one or more first apertures through the anode electrode. The electrode stack may also include a cathode electrode having a cathode current collector, and a cathode active material disposed on the cathode current collector. The cathode electrode may define one or more second apertures through the cathode electrode.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: February 13, 2024
    Assignee: Apple Inc.
    Inventors: Dapeng Wang, Hirotsugu Oba
  • Patent number: 11894557
    Abstract: A positive active material includes a secondary particle in which a plurality of primary particles is agglomerated. The positive active material is composed of, in which a compound containing nickel, lithium, and oxygen. An average angle between a reference line connecting a center portion of the secondary particle and a center portion of the primary particle provided at the outermost portion of the secondary particle and a particle orientation line penetrating the center portion of the primary particle provided at the outermost portion of the secondary particle and extending in parallel to an orientation direction of the primary particles is 12.2° or less. A concentration of the nickel in the compound is 59 mol % or more. The compound further includes an added metal composed of a different element from the nickel and the lithium. The added metal includes one or more of boron (B) and tungsten (W).
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: February 6, 2024
    Assignee: BATTERY SOLUTION
    Inventor: Yang-Kook Sun
  • Patent number: 11888158
    Abstract: A battery includes an electrode layer, a counter electrode layer, which is a counter electrode for the electrode layer, and a solid electrolyte layer between the electrode layer and the counter electrode layer. The solid electrolyte layer has a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is positioned within a region where the electrode layer and the counter electrode layer face each other. The second region is positioned on an outer peripheral side of the region where the electrode layer and the counter electrode layer face each other, and is in contact with the first region. The first region includes a first projecting portion that projects outward from a region where the electrode layer and the counter electrode layer face each other, and the second region covers the first projecting portion.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: January 30, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Eiichi Koga, Kazuhiro Morioka, Yasutaka Tsutsui
  • Patent number: 11870054
    Abstract: A solid-state battery cell includes a cathode, an anode comprising microspheres of lithium metal embedded in an ion and electron conducting oxide-based material, with individual microspheres having a first solid electrolyte interface, and a first solid electrolyte layer comprising a sulfide-based solid electrolyte, the first electrolyte layer positioned between the cathode and the anode. The solid-state battery can also include a second solid electrolyte layer comprising an oxide-based solid electrolyte between the first solid electrolyte layer and the anode, the second solid electrolyte layer having a lower conductivity than the first solid electrolyte layer, and a second solid electrolyte interface between the first solid electrolyte layer and the second solid electrolyte layer.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 9, 2024
    Assignee: Nissan North America, Inc.
    Inventor: Mohammed Hussain Abdul Jabbar
  • Patent number: 11862765
    Abstract: An electrolyte solution for an alkali metal-sulfur-based secondary battery, an alkali metal-sulfur-based secondary battery, and a module containing the alkali metal-sulfur-based secondary battery. The electrolyte solution includes a positive electrode containing a carbon composite material that contains a carbon material and a sulfur-containing positive electrode active material. The carbon material has a pore volume ratio (micropores/mesopores) of 1.5 or higher. The electrolyte solution contains a fluorinated ether represented by the following formula (1): R11—(OR12)n11—O—R13. In the formula, R11 and R13 are the same as or different from each other, and are each an alkyl group optionally containing a fluorine atom, with at least one of R11 or R13 containing a fluorine atom; R12 is an alkylene group optionally containing a fluorine atom; and n11 is 0, 1, or 2.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: January 2, 2024
    Assignees: THE SCHOOL CORPORATION KANSAI UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Masashi Ishikawa, Yuya Torii, Satoshi Uchida, Masaki Yamagata, Shigeaki Yamazaki, Shinichi Kinoshita
  • Patent number: 11855304
    Abstract: Provided is a secondary battery, comprising an electrode assembly, a packaging bag, and electrode leads. The electrode assembly is accommodated in the packaging bag and comprises a first electrode member, a second electrode member and a separator. The separator separates the first electrode member from the second electrode member. The first electrode member comprises an insulating substrate, a conductive layer, an active material layer and a conductive structure. The conductive layer is provided on the surface of the insulating substrate, and the conductive layer is provided with a first portion and a second portion. The first portion is coated with the active material layer. The second portion is not coated with the active material layer. The conductive structure is welded to the second portion to form a first welding area. The electrode leads are connected to the conductive structure and extend to the outside of the packaging bag.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: December 26, 2023
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Mianyu Xie, Guangjun Wang
  • Patent number: 11831024
    Abstract: This application provides a polymer current collector, a preparation method thereof, and a secondary battery, battery module, battery pack, and apparatus associated therewith. The polymer current collector provided in this application includes polymer film layers, where the polymer film layers include a first polymer film layer and a second polymer film layer, a resistivity of the first polymer film layer is denoted as ?1, a resistivity of the second polymer film layer is denoted as ?2, and the current collector satisfies ?1>?2. The polymer current collector in this application can induce to deposit of lithium metal from a low conductivity side to a high conductivity side, avoiding risks of depositing lithium ions on the surface of the current collector and thereby increasing cycle life of lithium metal batteries.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: November 28, 2023
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Ang Fu, Chengyong Liu, Yongsheng Guo, Jiawei Fu, Qian Li, Bobing Hu, Shengyuan Huang
  • Patent number: 11777135
    Abstract: 3-D magnesium voltaic cells have a magnesium anode coated on multiple opposing surfaces with a continuous protective/electrolyte layer that is ionically conductive and electronically insulating. The resulting protected 3-D magnesium anode is coated on multiple opposing surfaces with a continuous cathode layer that is electronically and ionically conductive, and includes a magnesium storage medium. Suitable magnesium anodes, in particular, magnesium foam anodes, can be made by pulsed galvanostatic deposition of magnesium on a copper substrate. The protective layer can be formed by electropolymerization of a suitable methylacrylate ester. The continuous cathode layer can be a slurry cathode having powders of an electronic conductor and a reversible magnesium storage component suspended in a magnesium electrolyte solution.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: October 3, 2023
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Fuminori Mizuno, Rana Mohtadi, Oscar Tutusaus, Nikhilendra Singh, Timothy S. Arthur, Ruidong Yang, Kensuke Takechi, Chen Ling, Ruigang Zhang
  • 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: 11749793
    Abstract: Provided are an all-solid-state battery and a preparation method thereof. The all-solid-state battery includes a positive electrode, a negative electrode, and a solid-state electrolyte located between the positive electrode and the negative electrode. The negative electrode includes a first negative electrode and a second negative electrode. The second negative electrode is located on a side of the first negative electrode. The solid-state electrolyte includes a first solid-state electrolyte and a second solid-state electrolyte. The first solid-state electrolyte is located between the positive electrode and the first negative electrode. The second solid-state electrolyte is located between the positive electrode and the second negative electrode. The roughness of the second solid-state electrolyte is greater than the roughness of the first solid-state electrolyte.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 5, 2023
    Assignee: QingTao (Kunshan) Energy Development Co., Ltd.
    Inventors: Yuchuan Feng, Zheng Li, Hongcai He, Ke Zhou, Dandan Wang, Fan Yang
  • Patent number: 11749849
    Abstract: A battery module and a method of manufacturing the same are disclosed herein. In some embodiments, a battery module includes a module case having an internal space formed by a top plate, a bottom plate and sidewalls of the module case, a plurality of battery cells disposed in the internal space, a first filler-containing cured resin layer in contact with both the top plate and the plurality of battery cells, and a second filler-containing cured resin layer in contact with both the bottom plate and the plurality of battery cells. The battery module can have excellent power relative to volume, while being manufactured in a simple process and at a low cost.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: September 5, 2023
    Inventors: Hyoung Sook Park, Ban Seok Choi, Se Woo Yang, Yoon Gyung Cho, Yang Gu Kang, Eun Suk Park, Sang Min Park
  • Patent number: 11705585
    Abstract: Disclosed is a rechargeable lithium battery including a positive electrode including a positive active material layer; and a negative electrode including a negative active material layer and a negative functional layer on the negative active material layer, wherein the functional layer includes flake-shaped polyethylene particles, and the positive active material layer includes a first positive active material including one or more composite oxides of lithium and a metal selected from cobalt, manganese, nickel, and a combination thereof, and a second positive active material including a compound represented by Chemical Formula 1 and. In Chemical Formula 1, 0.90?a?1.8, 0?x?0.7, and M is Mg, Co, Ni, or a combination thereof.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: July 18, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jaehwan Ha, Kijun Kim, Heeeun Yoo, Yeonhee Yoon, Kyuseo Lee
  • Patent number: 11695125
    Abstract: Apparatuses and methods for depositing materials on both sides of a web while it passes a substantially vertical direction are provided. In particular embodiments, a web does not contact any hardware components during the deposition. A web may be supported before and after the deposition chamber but not inside the deposition chamber. At such support points, the web may be exposed to different conditions (e.g., temperature) than during the deposition. Also provided are substrates having materials deposited on both sides that may be fabricated by the methods and apparatuses.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: July 4, 2023
    Assignee: AMPRIUS TECHNOLOGIES, INC.
    Inventors: Ronald J. Mosso, Ghyrn E. Loveness
  • Patent number: 11677099
    Abstract: Stacking system and method for continuously piling cutouts from at least one foil- or membrane-like material web onto a stack, wherein the at least one foil- or membrane-like material web is continuously fed, the at least one foil- or membrane-like material web is cut to a size dependent on the dimensions of the stack to form a blank, the blank is received by a magazine of a continuously moving, in particular rotating, transfer apparatus having a plurality of magazines, and where the received blank is transferred from the magazine onto the stack, before the magazine receives a subsequent blank.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: June 13, 2023
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Torsten May, Jonas Pils, Sr., Luciano Wolke Da Silva
  • Patent number: 11670792
    Abstract: A redox flow battery and battery system are provided. In one example, the redox flow battery includes a cell stack assembly having a plate assembly positioned on a lateral side of the cell stack assembly and comprising an elastic flange including a recess mated with a section of a conductive plate and compliant in at least one of a lateral direction and a vertical direction, and a plate frame coupled to the elastic flange.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: June 6, 2023
    Assignee: ESS Tech, Inc.
    Inventors: Craig E. Evans, Sean Casey, Thiago Groberg, Yang Song
  • Patent number: 11670463
    Abstract: Provided herein is an electrochemical cell designed for high current discharge, which includes a cathode strip, an anode strip, and at least two separator strips, being longitudinally stacked to form an electrodes set that is folded into at least four segments and designed to exhibit a ratio of its nominal capacity per its active area lower than 12 mAh/cm2, such that the cell is characterized by a discharge efficiency at room temperature of at least 30% to a cut-off voltage of ? of its original voltage at a discharge current of 1,250 mA. Also provided are process of manufacturing, and uses of the cell, which is particularly useful in high drain-rate applications as charging a cellular phone.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: June 6, 2023
    Assignee: Battarix Enterprises, LLC
    Inventor: Nir Kapelushnik
  • Patent number: 11646410
    Abstract: A negative electrode for a lithium metal battery which includes: a current collector; a negative electrode active material layer formed on the surface of a current collector; a heat conductive layer formed on a surface of the negative electrode active material layer wherein the heat conductive layer comprises a heat conductive material having a heat conductivity of 25 W/m·K to 500 W/m·K; and a protective layer formed on a surface of the heat conductive layer, wherein the protective layer includes at least one of a porous polymer layer and a ceramic layer. An electrochemical device including the negative electrode for a lithium metal battery. The negative electrode for a lithium metal battery includes a heat conductive layer and a protective layer, and can inhibit growth of lithium dendrite in a negative electrode for a lithium metal battery and improve the cycle life of an electrochemical device.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 9, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun-Woong Yun, Jong-Keon Yoon
  • Patent number: 11641014
    Abstract: A battery comprising an acidified metal oxide (“AMO”) material, preferably in monodispersed nanoparticulate form 20 nm or less in size, having a pH<7 when suspended in a 5 wt % aqueous solution and a Hammett function H0>?12, at least on its surface.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: May 2, 2023
    Assignee: HHeLi, LLC
    Inventor: Paige L. Johnson
  • Patent number: 11626589
    Abstract: This application discloses a secondary battery and a device containing the secondary battery. A positive active material of the secondary battery includes one or more of lithium nickel cobalt manganese oxide, lithium nickel cobalt aluminum oxide, and a modified material thereof. A negative active material of the secondary battery includes a silicon-oxygen compound and graphite. A separator of the secondary battery includes a substrate and a coating layer. The secondary battery satisfies: 7.5 ? 3460 ED - ( D ? 50 - D C ? 50 × 0.75 - T 18 ) ? 11.5 , where ED?270 Wh/Kg, 11 ?m?D50?18.5 ?m, 11 ?m?DC50?20 ?m. The secondary battery according to this application achieves relatively high cycle performance while achieving a relatively high energy density concurrently.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: April 11, 2023
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventor: Guangjun Wang
  • Patent number: 11594751
    Abstract: Provided is technology which can prevent breakage of a collector in a battery using an electrode sheet including an uncoated part with a narrowed width. A battery includes a collector bundle including an uncoated part stacked in a plurality of layers formed at each side edge in the width direction of the electrode body. A junction part including compressed uncoated part in plural layers is formed at an outer end in the width direction of the collector bundle. A converging part including the collector in plural layers converging so that the surface is inclined toward the junction part is formed inside in the width direction. The foil collecting angle of the collector bundle is 120° or more and 160° or less, and an R part with a curvature radius of 0.3 mm or more is formed at the converging part side end of the junction surface of the collector terminal.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: February 28, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Toshinori Okura
  • Patent number: 11581574
    Abstract: An all solid battery includes a solid electrolyte layer of which a main component is a Li—Al-M-PO4-based phosphoric acid salt, a first electrode layer that is provided on a first main face of the solid electrolyte layer and includes an active material, and a second electrode layer that is provided on a second main face of the solid electrolyte layer and includes an active material. “M” is at least one of Ge, Ti, and Zr. A region in which a ratio of MO2 with respect to Li—Al-M-PO4 is 5% or more is unevenly distributed from a center in a thickness of the solid electrolyte layer to 0.4 A downward and to 0.4 A upward, when the thickness of the solid electrolyte layer is expressed by “A”.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: February 14, 2023
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takato Sato, Daigo Ito, Sachie Tomizawa, Chie Kawamura, Masashi Sekiguchi
  • 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: 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: 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: 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: 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: 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: 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: 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: 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: RE49672
    Abstract: The present disclosure provides a cell and an electrochemical device. The cell comprises: a first electrode plate comprising a first current collector and a first active material layer, a second electrode plate comprising a second current collector and a second active material layer; a first electrode tab, a second electrode tab, a separator. The first current collector has a first surface uncoated region; the second current collector has a second surface uncoated region; the first electrode tab is provided on the first surface uncoated region, the second electrode tab is provided on the second surface uncoated region. The first electrode tab and/or the second electrode tab are enlarged in length and width. When the cell is subjected to a mechanical shock, the first electrode tab and the second electrode tab are deformed to puncture the separator therebetween, so the first current collector and the second current collector are electrically connected.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: September 26, 2023
    Assignees: Dongguan Amperex Technology Limited, Ningde Amperex Technology Limited
    Inventor: Jin Chong