Carbon, Graphite, Or Carbonaceous Component Is Active Material Patents (Class 429/231.8)
  • Patent number: 11158847
    Abstract: Composite particles and a negative electrode active material including such particles for an electrochemical device. The negative electrode active material is capable of lithium intercalation/deintercalation and includes composite particles including a carbon phase including a carbonaceous material, silicon (Si) and lithium fluoride (LiF). The Si and LiF may be present as Si—LiF mixed particles, which are dispersed in the carbon phase, wherein the Si—LiF mixed particles are dispersed in the carbon phase with uniform or non-uniform distribution. In addition, the composite particles include the carbon phase mixed uniformly or amorphously with the Si—LiF mixed particles.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 26, 2021
    Assignee: LG CHEM, LTD.
    Inventors: So-Ra Lee, Seo-Young Kwon, Jee-Eun Kim, Ji-Young Park, Pil-Kyu Park, Hyeon-Min Song, Kwi-Sub Yun, U-Jin Yoon, Jae-Young Lee, Yong-Ju Lee, Jung-Hyun Choi
  • Patent number: 11158902
    Abstract: To provide a highly reliable rectangular secondary battery. A rectangular secondary battery (20) includes: an electrode body (3) that includes a positive electrode plate and a negative electrode plate; a rectangular casing (1) that includes an opening and that contains the electrode body (3); and a sealing plate (2) that seals the opening of the rectangular casing (1). The sealing plate (2) includes a gas discharge valve (17) that ruptures when the pressure inside the rectangular casing (1) has a predetermined value or more to discharge gas inside the rectangular casing (1) to outside the rectangular casing (1). A portion of a second negative electrode current collector (8b) is disposed, as a shielding member, at a location that is between the sealing plate (2) and the electrode body (3) and that faces the gas discharge valve (17).
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: October 26, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Hiroyuki Yamada
  • Patent number: 11158850
    Abstract: A novel composite electrode material and a method for manufacturing the same, a composite electrode containing the said composite electrode material, and a Li-based battery comprising the said composite electrode are disclosed. Herein, the composite electrode material of the present invention comprises: a core, wherein a material of the core is at least one selected from the group consisting of Sn, Sb, Si, Ge, C, a compound thereof and a complex thereof; and a conductive carbon nanoparticle, wherein the conductive carbon nanoparticle grows on a surface of the core.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: October 26, 2021
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Yon-Hua Tzeng, Wei-Chih Huang
  • Patent number: 11152620
    Abstract: An process for producing multiple porous graphene particulates for a lithium battery anode, the process comprising: (a) preparing a graphene dispersion having multiple anode material particles, multiple sheets of a starting graphene material, and a blowing agent dispersed in a liquid medium, wherein the blowing agent-to-graphene material weight ratio is from 0.01/1.0 to 1.0/1.0; (b) dispensing, forming and drying the graphene dispersion into multiple droplets containing therein graphene sheets, particles of the anode active material, and the blowing agent; and (c) heat treating the droplets at a heat treatment temperature selected from 80° C. to 3,200° C. at a desired heating rate sufficient to induce volatile gas molecules from the non-carbon elements or to activate the blowing agent for producing the multiple porous graphene particulates.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: October 19, 2021
    Assignee: Global Graphene Group, Inc.
    Inventors: Sheng-Yi Lu, Wen Y. Chiu, Bor Z. Jang
  • Patent number: 11127953
    Abstract: The present invention relates to a carbon nanotube-transition metal oxide composite and a method for making the composite. The composite comprises at least one carbon nanotube and a plurality of transition metal oxide nanoparticles. The plurality of transition metal oxide nanoparticles are chemically bonded to the at least one carbon nanotube through carbon-oxygen-metal (C—O-M) linkages, wherein the metal is a transition metal element. The method for making the composite comprising the following steps: step 1, providing at least one carbon nanotube obtained from a super-aligned carbon nanotube array; step 2, pre-oxidizing the at least one carbon nanotube; step 3, dispersing the at least one carbon nanotube in a solvent to form a first suspension; step 4, dispersing a material containing transition metal oxyacid radicals in the first suspension to form a second suspension; and step 5, removing the solvent from the second suspension and drying the second suspension.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: September 21, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Da-Tao Wang, Li Sun, Ke Wang, Jia-Ping Wang, Shou-Shan Fan
  • Patent number: 11127948
    Abstract: A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li+ intercalation medium. Highly reversible Li+ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. Addition of surface effect dominant sites in close proximity to the intercalation medium results in a hybrid device that includes advantages of both batteries and capacitors.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 21, 2021
    Assignee: CF TRAVERSE LLC
    Inventor: Ronald A. Rojeski
  • Patent number: 11128019
    Abstract: One aspect of the present invention is directed to an energy storage device electrode including a conductive electrode substrate including a main body and at least one plate-shaped tab and an insulating layer coating a surface and a side surface of a base end of the tab.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: September 21, 2021
    Assignee: GS Yuasa International Ltd.
    Inventor: Tetsuya Murai
  • Patent number: 11127945
    Abstract: An electrode for a metal-ion battery is provided wherein the active layer of the electrode comprises a plurality of low porosity particles comprising an electroactive material selected from silicon, silicon oxide germanium, tin, aluminium and mixtures thereof and a plurality of carbon particles selected from one or more of graphite, soft carbon and hard carbon. The ratio of the D50 particles size of the carbon particles to the D50 particle diameter of the porous particles is in the range of from 1.5 to 30. Also provided are rechargeable metal-ion batteries comprising said electrode and compositions of porous particles and carbon particles which may be used to prepare the active layer of said electrode.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: September 21, 2021
    Assignee: Nexeon Limited
    Inventors: Tsuyonobu Hatazawa, Christopher Michael Friend
  • Patent number: 11127952
    Abstract: A material for a negative electrode active material having capability of achieving excellent cycle performance while maintaining satisfactory initial efficiency (initial capacity), a production method for the material, a composition for a negative electrode, using the material, a negative electrode, and a secondary battery. A core-shell structure that includes the following components (A) and (B), and satisfies the following conditions (i) and (ii): (A): a core containing at least Si (silicon), O (oxygen) and C (carbon) as a constituent element, and containing crystalline carbon and non-crystalline carbon as a constituent; and (B): a shell encapsulating the core, and including a SiOC structure having a graphene layer, and (i): having an atomic composition represented by formula SiOxCy (0.5<x<1.8, 1.0<y<5.0), and (ii): having a predetermined value of less than 1.0×105 ?·cm in specific resistance determined by powder resistance measurement.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: September 21, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yoshihito Takano, Masakazu Kondo, Hirotsuna Yamada
  • Patent number: 11114670
    Abstract: A negative electrode according to one embodiment of the present invention comprises a current collector and a negative electrode active material layer disposed on the current collector, wherein the negative electrode active material layer includes a first particle and a second particle, the first particle includes a first core including artificial graphite; and a first shell disposed on the first core, said first shell including an oxide of the artificial graphite, wherein a sphericity of the first particle measured through a particle shape analyzer is from 0.94 to 0.98, the second particle is artificial graphite having sphericity measured through the particle shape analyzer of 0.70 to 0.92, and a weight ratio of the first particle and the second particle is from 1:1 to 1:9.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: September 7, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Su Min Lee, Sun Young Shin, Su Yeon Lee, Eun Kyung Kim
  • Patent number: 11108045
    Abstract: The invention relates to a host material for stabilizing a Li metal electrode, fabricating methods and applications of the same. The host material includes crumpled graphene balls operably defining a scaffold having volumes and voids inside and in between the crumpled graphene balls so as to allow uniform and stable Li deposition/dissolution inside and in between the crumpled graphene balls without electrode volume fluctuations or with sufficiently small electrode volume fluctuations. The crumpled paper ball-like structures of graphene particles can readily assemble to yield the scaffold with scalable Li loading up to 10 mAh cm-2 within tolerable volume fluctuations. High Coulombic efficiency of 97.5% over 750 cycles (1500 hours) is achieved. Plating/stripping Li up to 12 mAh cm-2 on the crumpled graphene scaffold does not experience dendrite growth.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: August 31, 2021
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Jiaxing Huang, Jiayan Luo
  • Patent number: 11094931
    Abstract: A negative electrode active material for a lithium ion secondary battery includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a ratio (SH2O/SN2) of a specific surface area calculated from moisture adsorption at 298 K to a specific surface area calculated from nitrogen adsorption at 77 K is 0.60 or less.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: August 17, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Akira Yasuda, Yoshie Ohsaki, Tatsuya Nishida
  • Patent number: 11088359
    Abstract: A secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes a first anode active material, a second anode active material, and an anode binder. The first anode active material includes a first central portion and a first coating portion. The first central portion includes a material that includes silicon as a constituent element, and the first coating portion is provided on a surface of the first central portion and includes one or both of a polyacrylate salt and a carboxymethylcellulose salt. The second anode active material includes a material that includes carbon as a constituent element. The anode binder includes one or more of polyvinylidene fluoride, polyimide, and aramid.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: August 10, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yosuke Koike, Yoshihide Nagata, Kazuaki Takada
  • Patent number: 11088365
    Abstract: Described is a core-shell nanoparticle comprising a lithium sulfide nanoparticle core and a shell covering the lithium sulfide nanoparticle core. The core-shell nanoparticle may be used for a positive electrode in a lithium/sulfur battery cell.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 10, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Elton J. Cairns
  • Patent number: 11081688
    Abstract: A battery electrode is provided that includes a porous silicon microstructure precursor, a silicon shell coating deposited on the silicon microstructure precursor, and a graphene coating deposited on the silicon shell coating, where the graphene coating encapsulates the silicon shell coating forming a graphene-encapsulated silicon-shell-protected porous silicon microstructure precursor battery electrode.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 3, 2021
    Assignee: THE BD OF TRUSTEES OF THE LELAND STANFORD JR UNIV
    Inventors: Yi Cui, Lei Liao, Jiangyan Wang
  • Patent number: 11066305
    Abstract: A porous silicon material including silicon nanoparticles and clusters of silicon nanoparticles, where the pores are cooperatively defined by the nanoparticles within the clusters.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: July 20, 2021
    Assignee: ionobell Inc
    Inventors: Robert C. Ionescu, Chueh Liu
  • Patent number: 11063255
    Abstract: A negative electrode active material for a lithium ion secondary battery includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a specific surface area calculated from carbon dioxide adsorption at 273 K is 8.5 m2/g or less.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: July 13, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Akira Yasuda, Yoshie Ohsaki, Tatsuya Nishida
  • Patent number: 11063249
    Abstract: Composite Si/C particles containing silicon particles located within pores of a carbonaceous matrix are prepared by coating silicon particles with a sacrificial coating layer followed by coating with an organic carbon precursor to form precomposite particles. Thermal treating of the precomposite particles carbonizes the organic carbon precursor and releases the sacrificial material. The composite particles are useful in lithium ion battery anodes.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: July 13, 2021
    Assignee: Wacker Chemie AG
    Inventor: Dennis Troegel
  • Patent number: 11056723
    Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode includes an opposing region that opposes the positive electrode with the separator disposed therebetween and a non-opposing region that does not oppose the positive electrode but opposes the separator. In the case that the discharge cut-off voltage of the nonaqueous electrolyte secondary battery is in the range of 2.5 V to 3.0 V, a part of the non-opposing region adjacent to a boundary between the opposing region and the non-opposing region has an electric potential plateau in the range of ?0.02 V to +0.02 V relative to a negative electrode potential in the opposing region.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: July 6, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takayuki Shirane, Takanobu Chiga
  • Patent number: 11047049
    Abstract: Low temperature techniques for forming layered lithium cobalt oxide (LCO) are provided. In one aspect, a method of synthesizing layered LCO includes: forming a metal catalyst layer (e.g., platinum) on a substrate; depositing LCO onto the metal catalyst layer; and annealing the LCO under conditions sufficient to form the layered LCO on the metal catalyst layer. An adhesion layer can be deposited on the substrate, and the metal catalyst layer can be deposited onto the adhesion layer. In another aspect, a structure is provided including: a substrate; a metal catalyst layer (e.g., platinum) disposed on the substrate; and layered LCO formed on the metal catalyst layer. An adhesion layer can be disposed between the substrate and the metal catalyst layer.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: June 29, 2021
    Assignee: International Business Machines Corporation
    Inventors: Kevin W. Brew, Saurabh Singh, Teodor K. Todorov
  • Patent number: 11043692
    Abstract: Provided are a negative electrode including a current collector, a first active material layer including first active material particles and disposed on the current collector, and a first pattern and a second pattern alternately disposed separately from each other on the first active material layer, wherein the first pattern includes first pattern active material particles, the second pattern includes second pattern active material particles, a thickness of the first pattern is greater than a thickness of the second pattern, and a volume expansion rate of the second pattern is greater than a volume expansion rate of the first pattern, and a secondary battery including the negative electrode.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: June 22, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Hye Ri Jung, Jung Pil Lee
  • Patent number: 11043671
    Abstract: A bio-mineralized composition for use in an electrochemical cell is described. The bio-mineralized composition may comprise a material represented by general formula y[Li1±xMaOc].(1-y)[Mb(PO4)3±d(Ap)1±e].Cz or y[Ma].(1-y)[Mb(PO4)3±d(Ap)1±e].Cz or y[Li1±xMaOc].w[Li2±xMaOc].(1-y-w)[Mb(PO4)3±d(Ap)1±e].Cz or y[MaOv].(1-y)[Mb(PO4)3±d(Ap)1±e].Cz where M represents at least one element; Ap represents group of mixtures; C represents Carbon or its allotropes; P represents element phosphorous; Si represents silicon; Li represents lithium; B represents boron; O represents oxygen and x, y, z, w, a, b, c, d and e represent a number.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: June 22, 2021
    Assignee: C4V LLC
    Inventor: Shailesh Upreti
  • Patent number: 11038177
    Abstract: A binder for a lithium-sulfur battery, and a positive electrode and a lithium-sulfur battery including the same, and in particular, to a binder for a lithium-sulfur battery including lithium polyacrylate and polyvinyl alcohol. By including two types of specific polymers, the binder for a lithium-sulfur battery is capable of enhancing electrochemical properties and stability of a positive electrode, and thereby enhancing capacity and lifetime properties of a lithium-sulfur battery.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 15, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyunsoo Lee, Jong Mo Jung, Doo Kyung Yang, Yu Mi Kim, Seong Ho Lee, Gi Su Park, Byounghyo Jung
  • Patent number: 11038166
    Abstract: The present application provides a coated anode material and a method of preparing the same. The coated anode material has a core-shell structure, wherein the core-shell structure includes an inert core and a shell coated on the inert core, the shell comprises an anode active material, and the inert core comprises a non-active material. In the coated anode material, the anode active material of the shell is distributed over the non-active material of the inert core, and the coated anode material can overcome the volume change problem of silicon particles during lithium insertion/deinsertion to a certain extent and obtain a better cycle performance and rate performance.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: June 15, 2021
    Assignee: MICROVAST POWER SYSTEMS CO., LTD.
    Inventors: Wenjuan Liu Mattis, Jianhai Luo
  • Patent number: 11031586
    Abstract: Methods for manufacturing sulfur electrodes include providing an electrode, wherein the electrode includes a current collector having a first surface, and a sulfur-based host material applied to the first surface of the current collector, wherein the sulfur-based host material comprises one or more sulfur compounds, one or more electrically conductive carbon materials, and one or more binders. The methods further include forming a plurality of channels within the sulfur-based host material using a laser or electron beam, wherein the plurality of channels define a plurality of host material columns, each column having one or more exterior surfaces contiguous which one or more of the channels which extend outward from the first surface of the current collector. Each of the one or more exterior surfaces can define a heat affected zone comprising a higher concentration of sulfur than the host material column prior to forming the plurality of channels.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: June 8, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Shuru Chen, Hongliang Wang, Fang Dai, Meinan He, Mei Cai
  • Patent number: 11018337
    Abstract: Provided is an anode active material for energy storage devices capable of electrochemically inserting and extracting lithium ions and production method thereof, an electrode structure including the active material and flake graphite, and an energy storage device using the electrode structure as an anode. The anode active material includes secondary particles that are aggregates of 10-300 nm primary particles containing silicon as a main component. The primary particles each include, as a surface layer, a composite metal oxide layer containing at least one or more metal elements selected from at least Al, Zr, Mg, Ca, and La and Li.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: May 25, 2021
    Inventor: Soichiro Kawakami
  • Patent number: 11011755
    Abstract: A method of forming an electrode material includes: (1) loading an electrochemically active material onto graphene sheets; (2) combining the electrochemically active material-loaded graphene sheets with holey graphene oxide sheets to form a mixture; and (3) treating the mixture under reducing conditions to form a composite including a graphene framework loaded with the electrochemically active material.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 18, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Xiangfeng Duan, Yu Huang, Hongtao Sun
  • Patent number: 10998546
    Abstract: A negative electrode active material for a lithium ion secondary battery, the negative electrode active material includes silicon oxide particles, each of which has carbon on at least a portion of its surface, in which: a ratio (PSi/PSiO2) of an intensity of an X-ray diffraction peak at 2? of from 27° to 29°, which is derived from Si, to an intensity of an X-ray diffraction peak at 2? of from 20° to 25°, which is derived from SiO2, is within a range of from 1.0 to 2.6, when CuK? radiation having a wavelength of 0.15406 nm is used as a radiation source; and a specific surface area calculated from moisture adsorption at 298 K is 6.5 m2/g or less.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: May 4, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Akira Yasuda, Yoshie Ohsaki, Tatsuya Nishida
  • Patent number: 10984961
    Abstract: A hybrid capacitor is provided which, while improving utilization ratio of the negative electrode active substance, achieves a low DC internal resistance. This hybrid capacitor is provided with a positive electrode having a layer of a positive electrode active substance having double-layer capacitance, and a negative electrode which has a negative electrode active substance layer that can occlude and release lithium ions and that is formed from metal compound particles having a three-dimensional network structure. The 100% discharge capacity of the metal compound particles having the three-dimensional network structure is 1.25-5.0 times the 100% discharge capacity of the positive electrode active substance.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 20, 2021
    Assignee: Nippon Chemi-Con Corporation
    Inventors: Satoru Tsumeda, Shotaro Kon, Kenji Tamamitsu
  • Patent number: 10985366
    Abstract: Systems, methods, and high performance electrochemical devices employing electroactive particles having a sandwich structure are described. The electroactive particle includes an electroactive layer between a pair of dimension-control layers. The electroactive layer includes an electroactive material configured to receive cations and experience a volumetric change in response thereto. The dimension-control layers are configured to inhibit planar dimensional changes of the electroactive particle such that the volumetric change of the electroactive layer occurs through a vertical dimension of the electroactive particle. The vertical dimension is orthogonal to the planar dimensions.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: April 20, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Hamid G. Kia, Xiaosong Huang, Zhongyi Liu
  • Patent number: 10978696
    Abstract: A negative electrode and a secondary battery including the negative electrode are provided. A plurality of projections and depressions are provided in a negative electrode active material layer and a negative electrode current collector. The plurality of projections and depressions in the negative electrode active material layer absorb expansion of the negative electrode active material and suppress deformation thereof. The plurality of projections and depressions in the negative electrode current collector suppress deformation of the negative electrode current collector caused by expansion and contraction of the negative electrode active material.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: April 13, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Junya Goto, Mako Motoyoshi, Yuika Sato, Takahiro Kawakami
  • Patent number: 10978738
    Abstract: Electrolyte solutions including additives or combinations of additives that provide low temperature performance and high temperature stability in lithium ion battery cells.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: April 13, 2021
    Assignees: Wildcat Discovery Technologies, Inc., Johnson Controls Technology Company
    Inventors: Gang Cheng, Ye Zhu, Deidre Strand, Boutros Hallac, Bernhard M. Metz
  • Patent number: 10957902
    Abstract: The invention relates to novel material comprising X/hard carbon composite and to a process for their preparation, the process comprising the steps: a) forming a mixture comprising i) one or more hard carbon-starting materials, ii) one or more starting materials which comprise one or more of the component elements of X, and optionally iii) one or more secondary carbon-containing materials; and b) heating the resulting mixture at 100° C. to 1500° C. to yield the material comprising the X/hard carbon composite; wherein X comprises one or more component elements selected from antimony, tin, phosphorus, sulfur, boron, aluminium, gallium, indium, germanium, lead, arsenic, bismuth, titanium, molybdenum, selenium, tellurium, cobalt and nickel and wherein X is present in an amount of at least 5% by weight of the material comprising the X/hard carbon composite.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: March 23, 2021
    Assignee: FARADION LIMITED
    Inventors: Jeremy Barker, Yang Liu
  • Patent number: 10933399
    Abstract: A method of removing barium from a liquid includes adding a two-dimensional metal carbide water contaminant adsorbent to water to adsorb contaminants, such as barium (II), from the liquid. The two-dimensional metal carbide water contaminant adsorbent is in the form of at least one MXene, having the formula Mn+1Xn, where n=1, 2 or 3, M is an early transition metal, such as scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), yttrium (Y), zirconium (Zr), niobium (Nb), molybdenum (Mo) or the like, and X is either carbon or nitrogen. The MXene may be Ti3C2. The liquid may be, for example, at least one water by-product from at least one oilfield reservoir, such as produced water, co-produced water or a combination thereof.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: March 2, 2021
    Assignee: QATAR FOUNDATION FOR EDUCATION, SCIENCE, AND COMMUNITY DEVELOPMENT
    Inventors: Sarper Sarp, Muataz A. Hussien, Nidal Hilal, Ahmed Mohammed Fard, Marwan K. Khraisheh, Tarik Rhadfi, Hughes Preud'Homme
  • Patent number: 10938033
    Abstract: Disclosed is a negative electrode active material including artificial graphite having a large particle diameter and natural graphite having a small particle diameter, wherein the average particle diameter ratio of the small particle and the large particle is 1:1.5-1:5. A secondary battery including the negative electrode active material is also disclosed.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: March 2, 2021
    Inventors: Hyun-Wook Kim, Jong-Hun Kim, Jang-Hyuk Hong
  • Patent number: 10938037
    Abstract: Conventional rechargeable batteries, such as lithium-ion batteries, are somewhat limited in their energy storage density. Sulfur-based batteries can provide improved energy storage density, but their use can be hampered by sulfur's low electrical conductivity. Energy storage devices, particularly batteries, can have a first electrode that includes a carbon nanotube aerogel, and an electroactive material containing sulfur that is incorporated in the carbon nanotube aerogel. Methods for forming an energy storage device can include incorporating an electroactive material containing sulfur in a carbon nanotube aerogel, compressing the carbon nanotube aerogel to form a compressed carbon nanotube aerogel, and disposing a first electrode containing the compressed carbon nanotube aerogel and the electroactive material in an electrolyte with a second electrode and a plurality of lithium ions, such that a separator material permeable to the lithium ions is between the first electrode and the second electrode.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 2, 2021
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Justin Samuel Golightly, Mark Joseph Isaacson, Jonathan W. Ward
  • Patent number: 10930933
    Abstract: A composite electrode prepared from silicon-graphene material and conductive polymer binder poly (1-pyrenemethyl methacrylate-co-methacrylic acid) for use in lithium-ion batteries.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 23, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Simon Lux, Ann-Christin Gentschev, Thorsten Langer, Gao Liu, Hui Zhao, Zhe Jia
  • Patent number: 10923724
    Abstract: A method for manufacturing a electronic device is provided having a current collector capable of a high specific charge collecting area and power, but is also achieved using a simple and fast technique and resulting in a robust design that may be flexed and can be manufactured in large scale processing. To this end the electronic device comprising an electronic circuit equipped with a current collector formed by a metal substrate having a face forming a high-aspect ratio structure of pillars having an interdistance larger than 600 nm. By forming the high-aspect structure in a metal substrate, new structures can be formed that are conformal to curvature of a macroform or that can be coiled or wound and have a robust design.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: February 16, 2021
    Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Harmannus Franciscus Maria Schoo, Sandeep Unnikrishnan, Dorothee Christine Hermes, Edsger Constant Pieter Smits, Sami Sabik
  • Patent number: 10910650
    Abstract: A stretchable composite electrode comprising a carbon nanotube active material composite layer is provided. The stretchable composite electrode comprises a plurality of carbon nanotube film structures and a plurality of active material layers. Each of the plurality of active material layers is located between adjacent carbon nanotube film structures. Each of the plurality of carbon nanotube film structures comprises a plurality of super-aligned carbon nanotube films stacked with each other. A surface of the carbon nanotube active material composite layer comprises a plurality of wrinkles. A stretchable composite electrode using the stretchable composite electrode is also provided.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: February 2, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yang Yu, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 10903505
    Abstract: An electrode for redox flow batteries is produced using a carbon catalyst for redox flow battery electrodes, wherein a ratio of the number of oxygen atoms to the number of carbon atoms (O/C ratio) is 0.05 to 0.20 as measured by surface analysis using X-ray photoelectron spectroscopy.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: January 26, 2021
    Assignee: NISSHINBO HOLDINGS INC.
    Inventors: Takeaki Kishimoto, Mayumi Mizushiri
  • Patent number: 10897062
    Abstract: In order to provide a lithium ion secondary battery having both high energy density and an excellent charging-rate characteristic, in the lithium ion secondary battery comprising a positive electrode, a negative electrode and an electrolyte solution, the electrolyte solution comprises 0.5 mol/l or more of Li[(FSO2)2N], 0.5 mol/l or more of LiPF6, and LiPO2F2; and the negative electrode comprises graphite deposited with amorphous carbon or graphite coated with amorphous carbon and having a specific surface area of 4 m2/g or less, as a negative electrode active material.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: January 19, 2021
    Assignee: NEC Corporation
    Inventors: Noriyuki Tamura, Katsumi Maeda, Qian Cheng
  • Patent number: 10897064
    Abstract: A cell assembly before initial charging, including an electrode body having a positive electrode and a negative electrode, a nonaqueous electrolytic solution including a nonaqueous solvent and a supporting salt, and a case housing the electrode body and the nonaqueous electrolytic solution. The negative electrode has a negative electrode mixture layer including a particulate negative electrode active material made of amorphous-coated graphite in which the surface of graphite particles is coated with amorphous carbon, and the nonaqueous electrolytic solution includes lithium fluorosulfonate. The oil absorption amount of the negative electrode active material is 35 ml/100 g to 50 ml/100 g, and a weight proportion of the lithium fluorosulfonate in the nonaqueous electrolytic solution is 0.65 wt % to 0.85 wt %. As a result, it is possible to provide a high-performance nonaqueous electrolyte secondary cell in which both the high-rate characteristic and the Li precipitation resistance are realized at a high level.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: January 19, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kayo Egawa
  • Patent number: 10892485
    Abstract: An electrode material for a lithium ion secondary battery of the present invention is an electrode material for a lithium ion secondary battery including an electrode active material and a carbonaceous film that coats a surface of the electrode active material, in which a hydroxy group and a group which is at least one selected from a carboxyl group, a nitro group, and a sulfo group have been introduced to an outermost surface of the carbonaceous film, a ratio of a total count number of the group which is at least one selected from the carboxyl group, the nitro group, and the sulfo group to a count number of the hydroxy group is 0.001 or more and 10.000 or less when a surface of the carbonaceous film is analyzed through time-of-flight secondary ion mass spectrometry to obtain the ratio, a coating ratio of the carbonaceous film is set to 40% or more and 90% or less, and the carbonaceous film has at least one through-hole per 100 square nanometers.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: January 12, 2021
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Takao Kitagawa, Tetsuya Nakabeppu
  • Patent number: 10876201
    Abstract: A method for manufacturing a broadband fluorescence amplification assembly comprising the steps of providing a vertically aligned carbon nanotube (“VACNT”) substrate that has been treated with a plasma and at least partially coated with a metal coating and a support structure, and supporting the VACNT substrate by the support structure. The support structure can include one of quartz or glass. The method can also include the steps of cleaning the support structure with an alcohol solution and/or exposing the support structure to one of a surface cleaning plasma or ozone. The method can further comprise the step of adhering the VACNT substrate to the support structure, wherein the step of adhering can include applying an adhesive material to at least a portion of the support structure. Additionally, the method can include the step of treating the VACNT substrate and the support structure with the plasma.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: December 29, 2020
    Assignee: IRONWOOD 12 LLC
    Inventor: Christopher J. Fleming
  • Patent number: 10879526
    Abstract: A conformal graphene-encapsulated battery electrode material is formed by: (1) coating a battery electrode material with a metal catalyst to form a metal catalyst-coated battery electrode material; (2) growing graphene on the metal catalyst-coated battery electrode material to form a graphene cage encapsulating the metal catalyst-coated battery electrode material; and (3) at least partially removing the metal catalyst to form a void inside the graphene cage.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: December 29, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yuzhang Li, Kai Yan, Zhenda Lu, Yi Cui
  • Patent number: 10879522
    Abstract: Systems and methods are provided for high volume roll-to-roll transfer lamination of electrodes for silicon-dominant anode cells.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: December 29, 2020
    Assignee: ENEVATE CORPORATION
    Inventors: Fred Bonhomme, Benjamin Park, Kirk Shockley, Giulia Canton, David J. Lee
  • Patent number: 10879525
    Abstract: A method of making a stretchable composite electrode is provided. An elastic substrate is pre-stretched along a first direction and a second direction, to obtain a pre-stretched elastic substrate. A carbon nanotube active material composite layer is laid on a surface of the pre-stretched elastic substrate. And the pre-stretching of the elastic substrate is removed, and a plurality of wrinkles is formed on a surface of the carbon nanotube active material composite layer.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: December 29, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yang Yu, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 10879531
    Abstract: A negative electrode active material particle and a method for preparing the same are provided. The negative electrode active material particle includes SiOx (0<x?2) and Li2Si2O5, and includes less than 2 wt % of Li2SiO3 and Li4SiO4.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: December 29, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Su Jin Park, Yong Ju Lee, Eun Kyung Kim, Hyun Chul Kim
  • Patent number: 10854871
    Abstract: An anode material for a lithium ion secondary battery that includes a carbon material having an average interlayer spacing d002 as determined by X-ray diffraction of from 0.335 nm to 0.340 nm, a volume average particle diameter (50% D) of from 1 ?m to 40 ?m, a maximum particle diameter Dmax of 74 ?m or less, and at least two exothermic peaks within a temperature range of from 300° C. to 1000° C. in a differential thermal analysis in an air stream.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 1, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Nobushige Nakamura, Yoshito Ishii, Hidetoshi Honbou, Keiji Okabe, Yuriko Ida
  • Patent number: 10854877
    Abstract: An all-solid-state secondary battery including: a positive electrode layer; a negative electrode layer; and a solid electrolyte layer between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a sulfur-containing positive electrode active material, a halogen-containing sulfide solid electrolyte, and a conductive carbon material, and wherein the sulfur-containing positive electrode active material includes elemental sulfur and a transition metal disulfide.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: December 1, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KARLSRUHE INSTITUTE OF TECHNOLOGY
    Inventors: Seitaro Ito, Ulderico Ulissi, Yuichi Aihara, Alberto Varzi, Stefano Passerini