Carbon, Graphite, Or Carbonaceous Component Is Active Material Patents (Class 429/231.8)
  • Patent number: 12230764
    Abstract: An all solid battery includes: a solid electrolyte layer of which a main component is oxide-based solid electrolyte; 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, wherein at least one of the first electrode layer and the second electrode layer includes an aggregate of carbon particles and a cavity, wherein the aggregate demarcates at least a part of the cavity.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: February 18, 2025
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Sachie Tomizawa, Daigo Ito, Chie Kawamura, Kotaro Mizuno
  • Patent number: 12206090
    Abstract: A negative active material for a rechargeable lithium battery includes a composite of silicon and crystalline carbon, wherein the silicon has an average particle diameter (D50) of about 10 nm to about 150 nm, and the crystalline carbon has an average particle diameter (D50) of about 5 ?m to about 20 ?m, and an aspect ratio of about 4 to about 10.
    Type: Grant
    Filed: November 13, 2023
    Date of Patent: January 21, 2025
    Assignee: SAMSUNG SDI CO., LTD.
    Inventor: Young-Min Kim
  • Patent number: 12191492
    Abstract: An anode active material for a secondary battery according to an embodiment of the present disclosure includes an anode current collector, and an anode active material layer on at least one surface of the anode current collector. The anode active material layer includes an anode active material that includes a natural graphite and an artificial graphite. The artificial graphite has a form of single particles. An orientation index expressed as I(004)/I(110) is 15 or less.
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: January 7, 2025
    Assignee: SK On Co., Ltd.
    Inventors: So Hyun Park, Kyung Hoon Kim, Chan Young Jeon
  • Patent number: 12142769
    Abstract: Provided is a novel oxygen reduction catalyst having good stability and higher oxygen reduction performance. The oxygen reduction catalyst includes a composite oxide comprising a conductive tin oxide containing Zr.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: November 12, 2024
    Assignee: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Akimitsu Ishihara, Takaaki Nagai
  • Patent number: 12107219
    Abstract: A polymer, a polymer electrolyte and a lithium ion battery are provided. The polymer includes a main chain and side chains of the polymer, the side chains contain conjugated cyclic groups and epoxy multi-element cyclic groups; the conjugated cyclic group is selected from saturated or unsaturated C10-C20 conjugated aromatic groups; the epoxy multi-element cyclic group is selected from saturated or unsaturated C3-C8 epoxy multi-element cyclic groups; the main chain of the polymer is selected from polyalkoxy ether. The polymer, the polymer electrolyte and the lithium ion battery can improve interaction between the polymer electrolyte and an active substance in an electrode plate, increase the adhesion of the polymer electrolyte, avoid detachment occurring at an interface between the plate and the electrolyte, and improve the interface stability of the battery.
    Type: Grant
    Filed: August 4, 2023
    Date of Patent: October 1, 2024
    Assignee: SHENZHEN BTR NEW ENERGY TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Junhuan Li, Gengbiao Xu, Chenglin Yang, Zikun Li, Youyuan Huang
  • Patent number: 12100834
    Abstract: A positive electrode active material, a method for preparation thereof and a positive electrode plate, a secondary battery and an electrical device containing the same are provided. The positive electrode active material has a core-shell structure, comprising a core, a first cladding layer covering the core, a second cladding layer covering the first cladding layer, wherein the core has a chemical formula of LiaAxMn1-yByP1-zCzO4-nDn, the first cladding layer comprises a first polymer containing an electron withdrawing group, the second cladding layer comprises a second polymer, and wherein the second polymer comprises one or more of plant polysaccharides, marine polysaccharides and the derivatives thereof. The positive electrode active material of the present application enables a secondary battery to have a relatively high energy density, while further having a significantly improved rate performance, cycling performance and/or high-temperature stability.
    Type: Grant
    Filed: March 25, 2024
    Date of Patent: September 24, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Qingyan Ma, Yingjie Guan, Yuzhen Zhao, Yan Wen, Qisen Huang
  • Patent number: 12080890
    Abstract: The present invention provides a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities, and preferably high charge/discharge efficiency and low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen content obtained by elemental analysis of 3.5 mass % or more, a ratio of nitrogen content and hydrogen content (RN/H) of 6 or more and 100 or less, a ratio of oxygen content and nitrogen content (RO/N) of 0.1 or more and 1.0 or less, and a carbon interplanar spacing (d002) observed by X-ray diffraction measurement of 3.70 ? or more.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: September 3, 2024
    Assignee: KURARAY CO., LTD.
    Inventors: Takafumi Izawa, Kengo Tachikawa, Hideharu Iwasaki
  • Patent number: 12074309
    Abstract: Provided is a lithium secondary battery including: a positive electrode plate that is a lithium complex oxide sintered plate with a thickness of 50 ?m or more; a negative electrode plate; a separator interposed therebetween; and an electrolytic solution. The sintered plate has a structure in which primary grains having a layered rock-salt structure are bound to each other, the lithium complex oxide has a composition represented by Lix(Co1-yMy)O2±?, wherein 1.0?x?1.1, 0<y?0.8, and 0??<1 are satisfied, and M is at least one selected from Mg, Ni, Al, Ti, and Mn, and the primary grains have a mean tilt angle of over 0° and 30° or less. The mean tilt angle is a mean value of angles defined by (003) planes of the primary grains and the plate face of the sintered plate.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: August 27, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventor: Yukinobu Yura
  • Patent number: 12054428
    Abstract: A method of making a layered MXene material comprises a) introducing dried MAX phase powder into a vessel under anhydrous, inert conditions, the MAX phase powder comprising a general formula of Mn+1AXn (n=1, 2, 3, or 4), wherein M is a transition metal or p-block metalloid selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Re, Cu, Ni, Ag, Zn, Cd, In, Sn, and Pb; interlayer A is a Group III, IV, or V metalloid selected from the group consisting of Al, Si, Ga, Ge, In, Sn, Pb, As, Bi, Sb, and X is one of C (carbon) and N (nitrogen); b) introducing a halogen and solvent to the dried MAX phase to create a halogen solution having a predetermined concentration; c) allowing a reaction to proceed for about 24 hours between 30-90° C. to create a reaction slurry comprising a MXene material.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 6, 2024
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Ali M. Jawaid, Richard A. Vaia, Asra Hassan
  • Patent number: 12051799
    Abstract: An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on the anode current collector. The anode active material layer including a lower anode active material layer formed on the anode current collector and an upper anode active material layer formed on the lower anode active material layer. Each of the lower anode active material layer and the upper anode active material layer includes a first anode active material and a second anode active material having a hardness less than that of the first anode active material. A total intrusion amount of mercury to pores having a diameter of 3 nm to 10 ?m in the anode active material layer measured by a mercury porosimeter is 0.27 ml/g or more.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: July 30, 2024
    Assignee: SK ON CO., LTD.
    Inventors: So Hyun Park, Hee Gyoung Kang, Hae Suk Hwang, Chan Young Jeon
  • Patent number: 12015092
    Abstract: The present invention(s) is directed to novel conductive Mn+1Xn(Ts) compositions exhibiting high volumetric capacitances, and methods of making the same. The present invention(s) is also directed to novel conductive Mn+1Xn(Ts) compositions, methods of preparing transparent conductors using these materials, and products derived from these methods.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: June 18, 2024
    Assignee: Drexel University
    Inventors: Michael J Ghidiu, Michel W Barsoum, Yury Gogotsi, Aaron Thomas Fafarman, Andrew DeVries Dillon
  • Patent number: 11981574
    Abstract: The present invention provides a fine silicon powder and the like including fine silicon particles having a microscopically measured particle diameter of 1 ?m or more and an average circularity determined in accordance with Formula (1) of 0.93 or more, in which an average particle diameter based on volume, which is measured by a laser diffraction scattering method, is in a range of 0.8 ?m or more and 8.0 ?m or less, an average particle diameter based on number, which is measured by the laser diffraction scattering method, is in a range of 0.100 ?m or more and 0.150 ?m or less, and a specific surface area, which is measured by a BET method, is in a range of 4.0 m2/g or more and 10 m2/g or less. Circularity=(4×?×projected area of particle)1/2/peripheral length of particle (1).
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: May 14, 2024
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Yoshinobu Nakada, Naoki Rikita
  • Patent number: 11929484
    Abstract: Disclosed in the present application is a compound, comprising nano silicon, a lithium-containing compound and a carbon coating, or comprising nano silicon, silicon oxide, a lithium-containing compound, and a carbon coating. The method comprises: (1) solid-phase mixing of carbon coated silicon oxide with a lithium source; and (2) preforming heat-treatment of the pre-lithium precursor obtained in step (1) in a vacuum or non-oxidising atmosphere to obtain a compound. The method is simple, and has low equipment requirements and low costs; the obtained compound has a stable structure and the structure and properties do not deteriorate during long-term storage, a battery made of cathode material containing said compound exhibits high delithiation capacity, high initial coulombic efficiency, and good recycling properties, the charging capacity is over 1920 mAh/g, the discharging capacity is over 1768 mAh/g, and the initial capacity is over 90.2%.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 12, 2024
    Assignee: BTR NEW MATERIAL GROUP CO., LTD.
    Inventors: Chunlei Pang, Lijuan Qu, Jianguo Ren, Min Yue
  • Patent number: 11929494
    Abstract: An electrode material for a lithium ion secondary battery and method of forming the same, the electrode material including composite particles, each composite particle including: a primary particle including an electrochemically active material; and an envelope disposed on the surface of the primary particle. The envelope includes turbostratic carbon having a Raman spectrum having: a D band having a peak intensity (ID) at wave number between 1330 cm-1 and 1360 cm-1; a G band having a peak intensity (IG) at wave number between 1530 cm-1 and 1580 cm-1; and a 2D band having a peak intensity (I2D) at wave number between 2650 cm-1 and 2750 cm-1. In one embodiment, a ratio of ID/IG ranges from greater than zero to about 1.1, and a ratio of I2D/IG ranges from about 0.4 to about 2.
    Type: Grant
    Filed: January 10, 2023
    Date of Patent: March 12, 2024
    Assignee: NANOGRAF CORPORATION
    Inventors: Joshua J. Lau, Aaron Yost, James McKinney, Cary Michael Hayner, Jack Cavanaugh, Seonbaek Ha
  • Patent number: 11916221
    Abstract: Composite anode materials and methods of making same, the anode materials including capsules including graphene, reduced graphene oxide, graphene oxide, or a combination thereof, and particles of an active material disposed inside of the capsules. The particles may each include a core and a buffer layer surrounding the core. The core may include crystalline silicon, and the buffer layer may include a silicon oxide, a lithium silicate, carbon, or a combination thereof.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: February 27, 2024
    Assignee: NANOGRAF CORPORATION
    Inventors: James McKinney, Cary M. Hayner, Joshua J. Lau, Seonbaek Ha, Francis Wang
  • Patent number: 11916223
    Abstract: Provided is a rechargeable alkali metal-sulfur cell comprising an anode active material layer, an electrolyte, and a cathode active material layer comprising multiple particulates, wherein at least one of the particulates comprises one or a plurality of sulfur-containing material particles being partially or fully embraced or encapsulated by a thin shell layer of a conducting polymer network, having a lithium ion conductivity no less than 10?8 S/cm, an electron conductivity from 10?8 to 103 S/cm at room temperature (typically up to 5×10?2 S/cm), and a shell layer thickness from 0.5 nm to 10 ?m. This battery exhibits an excellent combination of high sulfur content, high sulfur utilization efficiency, high energy density, and long cycle life. Also provided are a powder mass containing such multiple particulates, a cathode layer comprising such multiple particulates, and a method of producing the cathode layer and the battery cell.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: February 27, 2024
    Assignee: Global Graphene Group, Inc.
    Inventor: Bor Z. Jang
  • Patent number: 11901545
    Abstract: Methods for producing a negative electrode active material particle which includes a silicon compound particle containing a silicon compound that contains oxygen. The methods including preparing a silicon compound particle containing a silicon compound that contains oxygen; inserting Li into the silicon compound particle; and heating, while stirring, the Li-inserted silicon compound particle in a furnace to produce a negative electrode active material particle, wherein at least part of Si constituting the silicon compound particle is present in at least one state selected from oxide of Si2+ to Si3+ containing no Li, and compound containing Li and Si2+ to Si3+.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: February 13, 2024
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu Hirose, Takumi Matsuno, Reiko Sakai, Kohta Takahashi, Hidekazu Awano
  • Patent number: 11876224
    Abstract: An object of the present invention is to provide a negative electrode active material having excellent charge/discharge characteristics (charge and discharge capacities, initial coulombic efficiency, and cycle characteristics). The object is achieved by providing a negative electrode active material containing: a silicon-based inorganic compound (a) composed of silicon (excluding zerovalent silicon), oxygen, and carbon; and silicon (zerovalent) (b). The equivalent constituent ratio [Q units/(D units+T units+Q units)] indicating the chemical bonding state (D units [SiO2C2], T units [SiO3C], Q units[SiO4]) of the silicon (excluding zerovalent silicon) present in the silicon-based inorganic compound (a) is within the range of from 0.30 to 0.80 inclusive.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: January 16, 2024
    Assignee: DIC Corporation
    Inventors: Peixin Zhu, Shinji Kato, Ryuuichi Kiyooka, Katsuhito Kuroki, Satoshi Katano, Takahito Ikuma
  • Patent number: 11866597
    Abstract: The present disclosure relates to 2-dimensional MXenes surface-modified with catechol derivatives, a method for preparing the same, MXene organic ink including the same, and use thereof (e.g. flexible electrodes, conducive cohesive/adhesive materials, electromagnetic wave-shielding materials, flexible heaters, sensors, energy storage devices). Particularly, the simple, fast, and scalable surface-functionalization process of MXenes using catechol derivatives (e.g. ADOPA) organic ligands significantly improves the dispersion stability in various organic solvents (including ethanol, isopropyl alcohol, acetone and acetonitrile) and produces highly concentrated organic liquid crystals of various MXenes (including Ti2CTx, Nb2CTx, V2CTx, Mo2CTx, Ti3C2Tx, Ti3CNTx, Mo2TiC2Tx, and Mo2Ti2C3Tx). Such products offer excellent electrical conductivity, improved oxidation stability, excellent coating and adhesion abilities to various hydrophobic substrates, and composite processability with hydrophobic polymers.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: January 9, 2024
    Assignee: Korea Institute of Science and Technology
    Inventors: Chong Min Koo, In Sik In, Tae Yun Ko, Daesin Kim, Se Hyun Doo, Seon Joon Kim, Soon Man Hong, Seung Sang Hwang, Kyung Youl Baek, Albert Lee, Sangho Cho
  • Patent number: 11870055
    Abstract: The present application describes the use of a solid electrolyte interphase (SEI) fluorinating precursor and/or an SEI fluorinating compound to coat an electrode material and create an artificial SEI layer. These modifications may increase surface passivation of the electrodes, SEI robustness, and structural stability of the silicon-containing electrodes.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: January 9, 2024
    Assignee: Enevate Corporation
    Inventors: Liwen Ji, Benjamin Yong Park, Robert A. Rango, Dong Sun, Frederic C. Bonhomme
  • Patent number: 11837717
    Abstract: The present specification relates to a negative electrode active material which includes a silicon-based composite represented by SiOa (0?a<1), and a carbon coating layer distributed on a surface of the silicon-based composite, and which has a bimodal pore structure including nanopores and mesopores. In a lithium secondary battery including the negative electrode active material, an oxygen content in the silicon-based composite can be controlled to improve initial efficiency and capacity characteristics, and a specific surface area can also be controlled, and thus a side reaction with electrolyte can be reduced.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: December 5, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun Chul Kim, Yong Ju Lee, Eun Kyung Kim
  • Patent number: 11827520
    Abstract: Discussed herein are methods of orienting one-dimensional and two-dimensional materials via the application of stationary and rotating magnetic fields. The oriented one-dimensional and two-dimensional materials may exhibit macroscopic properties, and may be employed in various measurement devices as well as thermal and electrical shielding applications or battery devices. A single 1D or 2D material may be suspended in another material such as dionized water, polymer(s), or other materials during the orientation, and the suspension may remain as a liquid or may be solidified or partially solidified to secure the oriented material(s) into place. The 1D and 2D materials that respond to the magnetic orientation may further cause other elements of the suspension to be oriented in a similar manner.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 28, 2023
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Jiming Bao, Feng Lin, Zhuan Zhu, Zhiming Wang
  • Patent number: 11784315
    Abstract: A lithium secondary battery including a negative electrode in which a negative electrode mixture included in the negative electrode is formed by charge and discharge of the battery. This negative electrode is formed by charge-induced formation of lithium metal on a negative electrode current collector having a three-dimensional structure form. The lithium secondary battery forms lithium metal while being blocked from the atmosphere. Therefore, formation of a surface oxide layer (native oxide layer) on a negative electrode is blocked and a lithium dendrite growth suppressing effect is achieved by forming lithium metal on a negative electrode current collector having a three-dimensional structure form. The lithium secondary battery has a superior battery efficiency and reduces declines in lifetime properties.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: October 10, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Bora Jung, Eunkyung Park, Minchul Jang, Byoungkuk Son, Changhun Park, Doyeon Kim
  • Patent number: 11777080
    Abstract: Provided herein are a negative electrode and a secondary battery including the same. In particular, the negative electrode includes: a current collector; a first active material layer including first active material particles and disposed on the current collector; and a second active material layer including second active material particles and disposed on the first active material layer, in which a lithium ion diffusion rate of the second active material particles is two to three times that of the first active material particles.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: October 3, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyeok Moo Lee, Sol Nip Lee, Song Taek Oh
  • Patent number: 11757126
    Abstract: The present invention relates to a negative electrode active material which includes a secondary particle including a first particle which is a primary particle, wherein the first particle includes a first core and a first surface layer which is disposed on a surface of the first core and contains carbon, and the first core includes a metal compound which includes one or more of a metal oxide and a metal silicate and one or more of silicon and a silicon compound; a method of preparing the same; an electrode including the same; and a lithium secondary battery including the same.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: September 12, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jung Hyun Choi, Yong Ju Lee, Eun Kyung Kim
  • Patent number: 11735729
    Abstract: A nickel-based active material precursor includes a particulate structure including a core portion, an intermediate layer portion on the core portion, and a shell portion on the intermediate layer portion, wherein the intermediate layer portion and the shell portion include primary particles radially arranged on the core portion, and each of the core portion and the intermediate layer portion includes a cation or anion different from that of the shell portion. The cation includes at least one selected from boron (B), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), titanium (Ti), vanadium (V), tungsten (W), chromium (Cr), iron (Fe), copper (Cu), zirconium (Zr), and aluminium (Al), and the anion includes at least one selected from phosphate (PO4), BO2, B4O7, B3O5, and F.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: August 22, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Pilsang Yun, Wooyoung Yang, Jangsuk Hyun
  • Patent number: 11728472
    Abstract: A negative electrode for a nonaqueous electrolyte secondary battery, which is an example of embodiments, comprises a negative electrode core body and a negative electrode mixture layer provided on the surface of the negative electrode core body. The negative electrode mixture layer includes graphite and fibrous carbon. The BET specific surface area of the graphite included in the first region is smaller than the BET specific surface area of the graphite included in the second region. In addition, the average length of the fibrous carbon included in the first region is longer than the average length of the fibrous carbon included in the second region.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: August 15, 2023
    Assignees: PANASONIC HOLDINGS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masanori Sugimori, Yusuke Fukumoto, Yuji Yokoyama, Nobuhiro Hirano, Yo Kato
  • Patent number: 11728471
    Abstract: A negative electrode for a nonaqueous electrolyte secondary battery, which is an example of embodiments, comprises a negative electrode core body and a negative electrode mixture layer provided on the surface of the negative electrode core body. The negative electrode mixture layer includes graphite and fibrous carbon. The BET specific surface area of the graphite included in the first region is smaller than the BET specific surface area of the graphite included in the second region. In addition, the average length of the fibrous carbon included in the second region is longer than the average length of the fibrous carbon included in the first region.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: August 15, 2023
    Assignees: PANASONIC HOLDINGS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke Fukumoto, Masanori Sugimori, Yuji Yokoyama, Nobuhiro Hirano, Yo Kato
  • Patent number: 11710819
    Abstract: This invention relates to particulate electroactive materials consisting of a plurality of composite particles, wherein the composite particles comprise a plurality of silicon nanoparticles dispersed within a conductive carbon matrix. The particulate material comprises 40 to 65 wt % silicon, at least 6 wt % and less than 20% oxygen, and has a weight ratio of the total amount of oxygen and nitrogen to silicon in the range of from 0.1 to 0.45 and a weight ratio of carbon to silicon in the range of from 0.1 to 1. The particulate electroactive materials are useful as an active component of an anode in a metal ion battery.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: July 25, 2023
    Assignee: Nexeon Limited
    Inventors: Timothy Bogart, Simon Foxon, James Farrell, David Bent, Daniel Scarlett
  • Patent number: 11705552
    Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed, and the negative active material includes a primary particle of a crystalline carbon-based material and secondary particle that is an assembly of the primary particles, wherein a ratio of an average particle diameter (D50) of the secondary particle relative to an average particle diameter (D50) of the primary particle (average particle diameter (D50) of the secondary particle/average particle diameter (D50) of the primary particle) ranges from about 1.5 to about 5 and an aspect ratio of the primary particle ranges from about 1 to about 7.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: July 18, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji Woo Ahn, Dongwoo Kim, Jaehou Nah, Bumjin Chang, Yurim Cha, Yeonjoo Choi, Ilyoung Choi
  • Patent number: 11699782
    Abstract: A secondary battery in which graphite that is an active material can occlude and release lithium efficiently is provided. Further, a highly reliable secondary battery in which the amount of lithium inserted and extracted into/from graphite that is an active material is prevented from varying is provided. The secondary battery includes a negative electrode including a current collector and graphite provided over the current collector, and a positive electrode. The graphite includes a plurality of graphene layers. Surfaces of the plurality of graphene layers are provided substantially along the direction of an electric field generated between the positive electrode and the negative electrode.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: July 11, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Teppei Oguni, Tamae Moriwaka, Junpei Momo, Ryota Tajima, Nobuhiro Inoue
  • Patent number: 11682757
    Abstract: Provided is a composite anode active material including: a carbonaceous material; a metal alloyable with lithium, located on a surface of the carbonaceous material; and a silicon coating layer located on a surface of the carbonaceous material, on a surface of the metal alloyable with lithium, or a combination thereof.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 20, 2023
    Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Jaephil Cho, Jaekyung Sung, Seong Hyeon Choi, Jiyoung Ma, Yoonkwang Lee
  • Patent number: 11652212
    Abstract: A cell includes a first current collector and a second current collector. A tail end of the first current collector exceeds a tail end of the second current collector by at least half a circle in a winding direction. The inventor of the present application finds that after the length of the first current collector is increased, and the tail end of the first current collector exceeds the tail end of the second current collector by at least half a circle, the following situation may occur: the outermost circle of the cell is the first current collector, the secondary outer circle is the first current collector, and the next secondary outer circle is the second current collector, such that both the outermost circle and the secondary outer circle of the cell are the first current collector.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: May 16, 2023
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventor: Jing Jiang
  • Patent number: 11648521
    Abstract: Nanoporous carbon-based scaffolds or structures, and specifically carbon aerogels and their manufacture and use thereof are provided. Embodiments include a silicon-doped anode material for a lithium-ion battery, where the anode material includes beads of polyimide-derived carbon aerogel. The carbon aerogel includes silicon particles and accommodates expansion of the silicon particles during lithiation. The anode material provides optimal properties for use within the lithium-ion battery.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: May 16, 2023
    Assignee: Aspen Aerogels, Inc.
    Inventors: Nicholas A. Zafiropoulos, Roxana Trifu, Redouane Begag, Wendell E. Rhine, George L. Gould, Alexei A. Erchak, Harris R. Miller, Nicholas Leventis
  • Patent number: 11605818
    Abstract: An anode material for a lithium ion secondary battery including a carbon material satisfying the following (1) to (3), (6), and (7): (1) an average particle size (D50) is 22 ?m or less, (2) D90/D10 of particle sizes is 2.2 or less, (3) a linseed oil absorption amount is 50 mL/100 g or less, (6) a portion of the carbon material with a sphericity of from 0.6 to 0.8 and a particle size of from 10 ?m to 20 ?m is 5% by number or more, and (7) a portion of the carbon material with the sphericity of 0.7 or less and a particle size of 10 ?m or less is 0.3% by number or less.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 14, 2023
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Motohiro Isaka, Hideyuki Tsuchiya, Kento Hoshi, Tsutomu Satoh, Keita Suga
  • Patent number: 11594757
    Abstract: Electrolytes, anodes, lithium ion cells and methods are provided for preventing lithium metallization in lithium ion batteries to enhance their safety. Electrolytes comprise up to 20% ionic liquid additives which form a mobile solid electrolyte interface during charging of the cell and prevent lithium metallization and electrolyte decomposition on the anode while maintaining the lithium ion mobility at a level which enables fast charging of the batteries. Anodes are typically metalloid-based, for example include silicon, germanium, tin and/or aluminum. A surface layer on the anode bonds, at least some of the ionic liquid additive to form an immobilized layer that provides further protection at the interface between the anode and the electrolyte, prevents metallization of lithium on the former and decomposition of the latter.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 28, 2023
    Assignee: STOREDOT LTD.
    Inventors: Doron Burshtain, Eran Sella, Niles Fleischer, Hani Farran, Leora Shapiro
  • Patent number: 11588152
    Abstract: The present invention relates to a cathode active material for a secondary battery and a manufacturing method thereof. A cathode active material, according to one embodiment of the present invention, comprises silicon-based primary particles, and a particle size distribution of the silicon-based primary particles is D10?50 nm and D90?150 nm. The cathode active material suppresses or reduces tensile hoop stress generated in lithiated silicon particles during a charging of a battery to thus suppress a crack due to a volume expansion of the silicon particles and/or an irreversible reaction caused by the crack, such that the lifetime and capacity of the battery can be improved.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: February 21, 2023
    Assignee: Nexeon Ltd.
    Inventors: Seung Chul Park, Eui Joon Song, Young Tai Cho, Jee Hye Park
  • Patent number: 11563206
    Abstract: Provided is a lithium secondary battery. The lithium secondary battery includes a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a mixed negative electrode active material including graphite particles and low crystalline carbon-based particles, and the negative electrode active material layer has an apex of an exothermic peak in a temperature range of no less than 370° C. and no more than 390° C., as measured by differential scanning calorimetry (DSC).
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: January 24, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
  • Patent number: 11527756
    Abstract: The electrical resistance of active cathodic and anodic films may be significantly reduced by the addition of small fractions of conductive additives within a battery system. The decrease in resistance in the cathode and/or anode leads to easier electron transport through the battery, resulting in increases in power, capacity and rates while decreasing joules heating losses.
    Type: Grant
    Filed: June 6, 2021
    Date of Patent: December 13, 2022
    Inventor: George Clayton Hansen
  • Patent number: 11492260
    Abstract: A problem to be solved by the present invention is to provide a carbonaceous material suitable for a negative electrode active material for non-aqueous electrolyte secondary batteries (e.g., lithium ion secondary batteries, sodium ion secondary batteries, lithium sulfur batteries, lithium air batteries) having high charge/discharge capacities and preferably high charge/discharge efficiency as well as low resistance, a negative electrode comprising the carbonaceous material, a non-aqueous electrolyte secondary battery comprising the negative electrode, and a production method of the carbonaceous material. The present invention relates to a carbonaceous material having a nitrogen element content of 1.0 mass % or more and an oxygen content of 1.5 mass % or less obtained by elemental analysis, a ratio of nitrogen element content and hydrogen element content (RN/H) of 6 or more and 100 or less, a ratio of oxygen element content and nitrogen element content (RO/N) of 0.1 or more and 1.
    Type: Grant
    Filed: July 4, 2018
    Date of Patent: November 8, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Takafumi Izawa, Kengo Tachikawa, Hideharu Iwasaki
  • Patent number: 11476457
    Abstract: The present application discloses a negative active material, a method for preparing the same, and related secondary batteries, battery modules, battery packs and apparatus. The negative active material includes a core material and a polymer-modified coating layer on at least a part of its surface; the core material includes one or more of silicon-based materials and tin-based materials; the coating layer includes sulfur element and carbon element; in the Raman spectrum of the negative active material, the negative active material has scattering peaks at the Raman shifts of 900 cm?1˜960 cm?1, 1300 cm?1˜1380 cm?1 and 1520 cm?1˜1590 cm?1, respectively, in which the scattering peak at the Raman shift of 900 cm?1˜960 cm?1 has a peak intensity recorded as Il, the scattering peak at the Raman shift of 1520 cm?1˜1590 cm?1 has a peak intensity recorded as IG, and Il and IG satisfy 0.2?Il/IG?0.8.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: October 18, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Yuzhen Zhao, Yingjie Guan, Yan Wen, Qisen Huang
  • Patent number: 11476462
    Abstract: An LiFePO4 precursor for manufacturing an electrode material of an Li-ion battery and a method for manufacturing the same are disclosed. The LiFePO4 precursor of the present disclosure can be represented by the following formula (I): LiFe(1-a)MaPO4??(I) wherein M and a are defined in the specification, the LiFePO4 precursor does not have an olivine structure, and the LiFePO4 precursor is powders constituted by plural flakes.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: October 18, 2022
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Lih-Hsin Chou, Li-Wen Hu, Chun-Yu Pan, Shao-Ting Hung, Kuei-Chao Wu
  • Patent number: 11469009
    Abstract: A process for producing a highly conducting film of conductor-bonded graphene sheets that are highly oriented, comprising: (a) preparing a graphene dispersion or graphene oxide (GO) gel; (b) depositing the dispersion or gel onto a supporting solid substrate under a shear stress to form a wet layer; (c) drying the wet layer to form a dried layer having oriented graphene sheets or GO molecules with an inter-planar spacing d002 of 0.4 nm to 1.2 nm; (d) heat treating the dried layer at a temperature from 55° C. to 3,200° C. for a desired length of time to produce a porous graphitic film having pores and constituent graphene sheets or a 3D network of graphene pore walls having an inter-planar spacing d002 less than 0.4 nm; and (e) impregnating the porous graphitic film with a conductor material that bonds the constituent graphene sheets or graphene pore walls to form the conducting film.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: October 11, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z. Jang
  • Patent number: 11469410
    Abstract: An exemplary embodiment of the present invention provides a spiral-wound electrode assembly including: a negative electrode and a positive electrode, each of which is configured to include a substrate, and a first composite material and a second composite material formed on opposite surfaces of the substrate; and a separator disposed between the negative electrode and the anode, wherein the first composite material of the negative electrode is disposed farther away from a center of the electrode assembly than the second composite material of the negative electrode, and the first composite material of the negative electrode is oriented with respect to a first surface of the substrate of the negative electrode.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 11, 2022
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Sangjun Lee, Bokhyun Ka, Kyeuyoon Sheem, Jinhyon Lee, Donghyuk Chang
  • Patent number: 11469447
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising sulfonate or carboxylate salt based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises a sulfonate or carboxylate salt based compound.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 11, 2022
    Assignee: ENEVATE CORPORATION
    Inventors: Liwen Ji, Benjamin Yong Park
  • Patent number: 11456527
    Abstract: The present disclosure is directed to antennas for transmitting and/or receiving electrical signals comprising a MXene composition, devices comprising these antennas, and methods of transmitting and receiving signals using these antennas.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 27, 2022
    Assignee: Drexel University
    Inventors: Yury Gogotsi, Babak Anasori
  • Patent number: 11431046
    Abstract: An energy storage device having improved gravimetric energy density is provided, and methods of manufacturing the same. The device can be an electrochemical cell that includes: a negative electrode including a negative electrode active material in electrically conductive contact with a negative electrode current collector and a negative electrode tab including a first attachment end and a second attachment end, the first attachment end of the negative electrode tab being connected to the negative electrode current collector and the second attachment end of the negative electrode tab being connected to a negative terminal; an electrically insulative and ion conductive medium in ionically conductive contact with the positive electrode and the negative electrode; and an outer can containing the positive electrode, negative electrode and electrically insulative and ion conductive medium, where the negative terminal is electrically isolated from the outer can.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 30, 2022
    Assignee: NIO Technology (Anhui) Co., Ltd.
    Inventor: Marc W. Juzkow
  • Patent number: 11430977
    Abstract: A lithium electrode and a lithium secondary battery including the same. More particularly, in the preparation of the lithium electrode, a protective layer for protecting the lithium metal is formed on the substrate, lithium metal may be deposited on the protective layer and then transferred to at least one side of the current collector to form a lithium electrode having a thin and uniform thickness, and the energy density of the lithium secondary battery using the lithium electrode thus manufactured may be improved.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: August 30, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Suk Il Youn, Byoungkuk Son, Junghun Choi, Minchul Jang
  • Patent number: 11417873
    Abstract: Solid-state batteries, battery components, and related processes for their production are provided. The battery electrodes or separators contain sintered electrochemically active material, inorganic solid particulate electrolyte having large particle size, and low melting point solid inorganic electrolyte which acts as a binder and/or a sintering aid in the electrode.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 16, 2022
    Assignee: JOHNSON IP HOLDING, LLC
    Inventors: Lazbourne Alanzo Allie, Adrian M. Grant, Devon Lyman, Lonnie G. Johnson, David Ketema Johnson
  • Patent number: 11393687
    Abstract: A method of forming a semiconductor device structure comprises forming at least one 2D material over a substrate. The at least one 2D material is treated with at least one laser beam having a frequency of electromagnetic radiation corresponding to a resonant frequency of crystalline defects within the at least one 2D material to selectively energize and remove the crystalline defects from the at least one 2D material. Additional methods of forming a semiconductor device structure, and related semiconductor device structures, semiconductor devices, and electronic systems are also described.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 19, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Roy E. Meade, Sumeet C. Pandey