The Alkali Metal Is Lithium Patents (Class 429/231.95)
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Patent number: 11276856Abstract: A positive electrode active material for nonaqueous electrolyte secondary batteries includes: secondary particles composed of aggregated primary particles of a lithium composite oxide containing Ni: a rare earth compound attached to the surfaces of the secondary particles; a tungsten compound attached to the surfaces of the secondary particles: and lithium carbonate attached to the surfaces of the primary particles inside the secondary particles. The rate of Ni in the lithium composite oxide containing Ni with respect to the total number of moles of metal elements other than lithium in the lithium composite oxide containing Ni is 80 percent by mole or more, and the content of the lithium carbonate with respect to the total mass of the lithium composite oxide containing Ni is 0.3 percent by mass or more.Type: GrantFiled: January 17, 2018Date of Patent: March 15, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akihiro Kawakita, Takeshi Ogasawara
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Patent number: 11271252Abstract: A lithium secondary battery includes an electrode group and a nonaqueous electrolyte having lithium ion conductivity. A negative electrode includes a negative electrode current collector. The negative electrode current collector has a first surface facing an outward direction of winding of the electrode group and a second surface facing an inward direction of the winding of the electrode group. Lithium metal is deposited on the first surface and the second surface by charge. The negative electrode further includes first protrusions protruding from the first surface and second protrusions protruding from the second surface. A ratio A1X/A1 is greater than a ratio A2X/A2. A1X is a sum of projected areas of the first protrusions on the first surface. A1 is an area of the first surface. A2X is a sum of projected areas of the second protrusions on the second surface. A2 is an area of the second surface.Type: GrantFiled: April 12, 2019Date of Patent: March 8, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO, LTD.Inventors: Akira Kano, Ryohei Miyamae, Kiyohiro Isii, Kensuke Nakura
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Patent number: 11271251Abstract: A lithium battery cell having one or more protective layers between the anode current collector and a solid state separator. The protective layers prevent dendrite propagation through the battery cell and improve coulombic efficiency by reducing deleterious side reactions.Type: GrantFiled: June 7, 2018Date of Patent: March 8, 2022Assignee: Robert Bosch GmbHInventors: Ram Subbaraman, Sondra Hellstrom, Abdul-Kader Srouji, Ingo Kerkamm, John F. Christensen
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Patent number: 11264618Abstract: A lithium metal electrode includes a current collector having a surface irregularity structure, a lithium metal layer disposed outside of the surface irregularity structure except the uppermost surface of the surface irregularity structure in the current collector, an electron-insulating protective layer disposed outside of the lithium metal layer, and a lithium ion-isolating layer disposed (1) on the uppermost surface of the surface irregularity structure of the current collector, or (2) on the uppermost surface of the surface irregularity structure of the current collector, on the uppermost surface of the lithium metal layer, and on the uppermost surface of the electron-insulating protective layer, wherein the electron-insulating protective layer includes a non-porous layer transporting lithium ions and having no pores, and a polymer porous layer disposed outside thereof. A lithium secondary battery and flexible secondary battery including the lithium metal electrode are also provided.Type: GrantFiled: September 12, 2019Date of Patent: March 1, 2022Inventors: Yong-Hee Lee, Dong-Hyeon Kang, In-Sung Uhm, Sung-Joong Kang, Min-Chul Jang, Byoung-Kuk Son, Dong-Chan Lee
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Patent number: 11264617Abstract: An all-solid-state secondary battery, wherein: an anode current collector that contains copper or copper alloy; a cathode current collector comprising aluminum, aluminum alloy or stainless steel, provided opposite to the anode current collector; an anode active material layer formed there between from the anode current collector side on the surface of the anode current collector; a solid electrolyte layer comprising a sulfide solid electrolyte that contains a monovalent or divalent metal and sulfur; and a cathode active material layer formed on the surface of the cathode current collector are layered successively, is used. A sulfidation resistant layer is formed on the surface of the anode current collector on which the anode active material layer is formed. Or, the surface of the anode current collector on which the anode active material layer is formed has a compressive strength of 1250 to 3000 MPa.Type: GrantFiled: September 25, 2015Date of Patent: March 1, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Toshio Tani, Masanobu Aragaki, Isamu Futaba, Toshiya Hikami
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Patent number: 11251483Abstract: A thin flexible conformable electrochemical cell for powering a wearable electrical device comprising an inner electrode having an active electrode face of one charge and an outer electrode having an active electrode face of the opposite charge separated by a separator, wherein said separator comprises an electrolyte layer as a single continuous layer folded around the inner electrode, and wherein the cell has a single continuous flexible coating material folded around the separator and the inner electrode so as to offer protection for the cell, and wherein the coating material is sealable so as define access to the cell for electrode contacts for connection with the electrical device, and so as to offer avoidance of the cell short circuiting in use. Also provided are methods for cell preparation.Type: GrantFiled: June 1, 2017Date of Patent: February 15, 2022Assignee: QinetiQ LimitedInventors: Girts Vitins, Gary Owen Mepsted
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Patent number: 11251437Abstract: A lithium secondary battery comprises an electrode group and a nonaqueous electrolyte having lithium-ion conductivity. A negative electrode current collector has a first surface facing outward of winding of the electrode group and a second surface facing inward of the winding of the electrode group. At least the first surface or the second surface includes a first region and a second region that is closer to an innermost circumference of the winding of the electrode group than the first region. Protrusions include outer-circumference-side protrusions disposed on the first region and inner-circumference-side protrusions disposed on the second region. In at least the first surface or the second surface, a first area rate is larger than a second area rate.Type: GrantFiled: April 19, 2019Date of Patent: February 15, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akira Kano, Ryohei Miyamae, Kiyohiro Isii, Kensuke Nakura
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Patent number: 11239469Abstract: A hybrid lithium-ion battery/capacitor cell comprising at least a pair of graphite anodes assembled with a lithium compound cathode and an activated carbon capacitor electrode can provide useful power performance properties and low temperature properties required for many power utilizing applications. The graphite anodes are formed of porous layers of graphite particles bonded to at least one side of current collector foils which face opposite sides of the activated carbon capacitor. The porous graphite particles are pre-lithiated to form a solid electrolyte interface on the anode particles before the anodes are assembled in the hybrid cell. The pre-lithiation step is conducted to circumvent the irreversible reactions in the formation of a solid electrolyte interface (SEI) and preserve the lithium content of the electrolyte and lithium cathode during formation cycling of the assembled hybrid cell. The pre-lithiation step is also applicable to other anode materials that benefit from such pre-lithiation.Type: GrantFiled: June 1, 2018Date of Patent: February 1, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Zhe Li, Xiaochao Que, Haijing Liu, Jingjing Wu, Dave G. Rich, Saad Hasan
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Patent number: 11233272Abstract: An electrolyte for a lithium-ion cell, comprises an organic solvent mixture comprising: (a) a hydrofluorinated ether base solvent to dissolve a lithium salt; (b) a fluorinated linear and/or cyclic ester co-solvent to form an SEI layer on a surface of the active materials; and (c) a fluorinated linear and/or cyclic ester co-solvent having a viscosity less than a viscosity of each of the hydrofluorinated ether base solvent and SEI-layer forming fluorinated linear and/or cyclic ester co-solvent to reduce a viscosity of the organic solvent mixture and a lithium salt dissolved in the organic solvent mixture.Type: GrantFiled: September 5, 2019Date of Patent: January 25, 2022Assignee: NIO USA, INC.Inventor: Marc W. Juzkow
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Patent number: 11225708Abstract: There is provision of a plasma spraying device including a supplying section configured to convey feedstock powder with a plasma generating gas, and to inject the feedstock powder and the plasma generating gas from an opening of a tip; a plasma generating section configured to generate a plasma by decomposing the injected plasma generating gas using electric power of 500 W to 10 kW; and a chamber causing the supplying section and the plasma generating section to be an enclosed region, which is configured to deposit the feedstock powder on a workpiece by melting the feedstock powder by the plasma generated in the enclosed region. The feedstock powder is any one of lithium (Li), aluminum (Al), copper (Cu), silver (Ag), and gold (Au). A particle diameter of the feedstock powder is between 1 ?m and 50 ?m.Type: GrantFiled: December 7, 2017Date of Patent: January 18, 2022Assignee: Tokyo Electron LimitedInventors: Yoshiyuki Kobayashi, Naoki Yoshii, Katsuji Kadosawa, Kimitomo Kaji
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Patent number: 11223037Abstract: A method for manufacturing an anode for a cable-type secondary battery, includes forming a lithium-containing electrode layer on the outer surface of a wire-type current collector; and surrounding the outer surface of the lithium-containing electrode layer with a substrate for forming a polymer layer spirally, and pressing the outside of the substrate for forming a polymer layer to form a polymer layer on the lithium-containing electrode layer, wherein the polymer layer includes a hydrophobic polymer, an ion conductive polymer, and a binder for binding the hydrophobic polymer and the ion conductive polymer with each other. An anode obtained from the method and a cable-type secondary battery including the anode are also provided.Type: GrantFiled: August 31, 2018Date of Patent: January 11, 2022Assignee: LG CHEM, LTD.Inventors: Jung-Hun Choi, Dong-Hyeon Kang, Sung-Joong Kang, Byoung-Kuk Son, In-Sung Uhm, Dong-Chan Lee, Yong-Hee Lee, Min-Chul Jang
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Patent number: 11223047Abstract: A non-aqueous electrolyte secondary battery includes an electrode array and an electrolyte solution. The electrode array includes a positive electrode that includes a positive electrode current collector and a positive electrode composite material layer; a negative electrode that includes a negative electrode current collector and a negative electrode composite material layer; and a separator. The electrode array includes cellulose nanofibers. At least one of the peel strength between the positive electrode current collector and the positive electrode composite material layer and the peel strength between the negative electrode current collector and the negative electrode composite material layer is smaller than both the peel strength between the separator and the positive electrode composite material layer and the peel strength between the separator and the negative electrode composite material layer. The greater of the two peel strengths is at least 1.5 times greater than the smaller of the two.Type: GrantFiled: March 29, 2019Date of Patent: January 11, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yutaka Oyama, Yuji Yokoyama
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Patent number: 11211637Abstract: A lithium battery includes a positive electrode, a negative electrode containing lithium, and a nonaqueous electrolyte having lithium-ion conductivity, wherein the positive electrode contains at least one selected from the group consisting of manganese oxide and graphite fluoride, and a powdered or fibrous carbon material is attached to at least part of the surface of the negative electrode opposite the positive electrode. Further, the nonaqueous electrolyte includes a nonaqueous solvent, a solute, a first additive, and a second additive, the solute contains LiClO4, the first additive is LiBF4, and the second additive is a salt having an inorganic anion that contains sulfur and fluorine.Type: GrantFiled: August 29, 2016Date of Patent: December 28, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Miyuki Nakai, Yasuyuki Kusumoto
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Patent number: 11205912Abstract: A power storage system having excellent characteristics is provided. A power storage system having high safety is provided. A power storage system with little degradation is provided. A storage battery having excellent characteristics is provided.Type: GrantFiled: July 13, 2018Date of Patent: December 21, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Osada, Akihiro Chida, Toshiyuki Isa, Kazutaka Kuriki
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Patent number: 11189825Abstract: An electrochemically active material including composite particles that each include a graphene-based material shell surrounding nanoparticles of a core material. The composite particles may include a BET surface area of less than about 75 m2/g. The electrochemically active material may be formed into an electrode incorporated within a lithium ion electrochemical cell.Type: GrantFiled: November 14, 2016Date of Patent: November 30, 2021Assignee: NANOGRAF CORPORATIONInventors: Cary Michael Hayner, Francis Wang, Christine A. Frysz
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Patent number: 11183681Abstract: A composite cathode active material includes a secondary particle; and a coating on a surface of the secondary particle, wherein the secondary particle comprises a plurality of primary particles, and the plurality of primary particles include a lithium nickel transition metal oxide having a layered crystal structure; and a grain boundary between primary particles of the plurality of primary particles, the grain boundary including a lithium metal oxide having a crystal structure different from the lithium nickel transition metal oxide having a layered crystal structure, wherein the coating on the surface of the secondary particle includes a metal oxide including cobalt, and a Group 2 element, a Group 12 element, a Group 13 element, or a combination thereof.Type: GrantFiled: July 8, 2019Date of Patent: November 23, 2021Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Sukgi Hong, Dongwook Shin, Byongyong Yu, Jinhwan Park, Jayhyok Song, Donghee Yeon, Byungjin Choi, Jinsu Ha, Dongjin Ham
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Patent number: 11177470Abstract: A battery structure with a cathode, an electrolyte, and a lithium metal anode is coated with a composite coating including a mixture of a polymer and a reinforcing fiber. The cathode and the lithium metal are held apart by a porous separator soaked with the electrolyte. The reinforcing fiber is dispersed in the polymer matrix. The composite coating is porous or non-porous. The composite coating conducts lithium ions. The reinforcing fiber is chemically functionalized.Type: GrantFiled: March 30, 2016Date of Patent: November 16, 2021Assignee: SES Holdings Pte. Ltd.Inventors: Qichao Hu, Jiapeng Xu, Xiaorui Chen
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Patent number: 11177502Abstract: The method for manufacturing a solid electrolyte using an LLZ material for a lithium-ion battery comprises the steps of: providing a starting material in which lanthanum nitrate [La(NO3)3.6H2O] and zirconium nitrate [ZrO(NO3)2.6H2O] are mixed at a mole ratio of 3:2; forming an aqueous solution by dissolving the starting material; forming a precipitate by putting ammonia, which is a complex agent, and sodium hydroxide, which adjusts the pH of a reactor, into the aqueous solution, mixing the same, and then co-precipitating the mixture; forming a primary precursor powder by cleaning, drying and pulverizing the precipitate; forming a secondary precursor powder by mixing lithium powder [LiOH.H2O] with the primary precursor powder and ball-milling the mixture so as to solidify the lithium; and forming a solid electrolyte powder by heat-treating the secondary precursor powder.Type: GrantFiled: January 16, 2019Date of Patent: November 16, 2021Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Ho Sung Kim, Tae Won Kim, Duck Rye Chang, Jong Ho Lee, Kyeong Wan Kim, Min Young Kim
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Patent number: 11158854Abstract: An electrode includes a material represented by Li1-xMxCoO2-d where 0<x?0.2 and 0?d?0.2. The variable M includes a metal selected from the group consisting of transition metals, Group I elements, and Group II elements.Type: GrantFiled: April 6, 2020Date of Patent: October 26, 2021Assignee: Wildcat Discovery Technologies, Inc.Inventors: Tanghong Yi, Bin Li
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Patent number: 11145853Abstract: A secondary battery includes a power generation element that includes a positive electrode having a collector on which a positive electrode active material layer is disposed, an electrolyte layer for retaining an electrolyte, and a negative electrode having a collector on which a negative electrode active material layer is disposed. The negative electrode active material layer has an area greater than that of the positive electrode active material layer. The negative electrode active material layer has a facing portion that faces a positive electrode active material layer with an electrolyte layer interposed by therebetween, and a non-facing portion that is positioned on an outer periphery of the facing portion and does not face the positive electrode active material layer. The non-facing portion has a stretching rate that is less than a stretching rate of the facing portion.Type: GrantFiled: March 7, 2017Date of Patent: October 12, 2021Assignee: Envision AESC Japan Ltd.Inventors: Takehiro Maeda, Yoshinori Naruoka
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Patent number: 11133493Abstract: Polymer composition for an electrode, method, and a lithium-ion battery including same are provided. This composition includes an active material having a graphite usable in the anode, an electrically conductive filler and a cross-linked elastomer binder that includes a hydrogenated acrylonitrile butadiene copolymer (HNBR). The binder includes a non-hydrogenated acrylonitrile butadiene copolymer (NBR) and/or a HNBR with an acrylonitrile content that is at least 40% by weight and cross-linked by thermal oxidation. This method includes: a) mixing the active material, the binder in a non-cross-linked state and the electrically conductive filler, to obtain a precursor mixture of the composition, b) depositing the mixture on a metal current collector so that the mixture forms a non-cross-linked film, then c) thermal oxidation of the non-cross-linked film under an atmosphere containing oxygen at a temperature of between 200 and 300° C., to obtain the electrode in which the binder is cross-linked.Type: GrantFiled: July 21, 2017Date of Patent: September 28, 2021Assignee: HutchinsonInventors: Philippe Sonntag, Julie Courtat, Marc Zimmermann, Ksenia Astafyeva, Bruno Dufour, David Ayme-Perrot
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Patent number: 11121397Abstract: The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance.Type: GrantFiled: November 25, 2019Date of Patent: September 14, 2021Assignee: Sion Power CorporationInventors: Chariclea Scordilis-Kelley, John D. Affinito, Lowell D. Jones, Yuriy V. Mikhaylik, Igor P. Kovalev, William F. Wilkening, Christopher T. S. Campbell, John A. Martens
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Patent number: 11111590Abstract: System and methods for producing lithium metal from an anodic half-cell and a cathodic half-cell with a lithium permeable membrane therebetween.Type: GrantFiled: September 18, 2018Date of Patent: September 7, 2021Assignee: UChicago Argonne, LLCInventors: John N. Hryn, Patricia Anne Ignacio-deLeon, Li Tang, Daniel Yoav Arenas
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Patent number: 11101465Abstract: Systems and methods are provided for a reaction barrier between an electrode active material and a current collector. An electrode may comprise an active material, a metal foil, and a polymer. The polymer (such as polyamide-imide (PAI)) may be configured to provide a carbonized barrier between the active material and the metal foil after pyrolysis.Type: GrantFiled: April 28, 2020Date of Patent: August 24, 2021Assignee: Enevate CorporationInventors: Benjamin Yong Park, Rahul R. Kamath, Fred Bonhomme
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Patent number: 11098201Abstract: An object of the present invention is to provide a carbon black for batteries having excellent dispersibility, electron conductivity and oxidation resistance. In addition, an object of the present invention is to provide a low-viscosity conductive composition for an electrode produced using the carbon black, and a low-resistance battery electrode and a battery having excellent high-output characteristics and cycle characteristics produced using the conductive composition. A carbon black for batteries having: BET specific surface area of 50 to 220 m2/g; a crystallite diameter (La) of 30 to 42 ?; and a number of CO2 desorption molecules per unit surface area measured by a temperature-rising desorption gas analysis method (50° C. to 1200° C. of measurement temperature) of 8.0×1016 to 15.0×1016 molecules/m2 is excellent in dispersibility, electron conductivity and oxidation resistance.Type: GrantFiled: August 8, 2017Date of Patent: August 24, 2021Assignee: DENKA COMPANY LIMITEDInventors: Tatsuya Nagai, Shinichiro Osumi, Daiki Ikeda, Tetsuya Ito, Hiroshi Yokota
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Patent number: 11094966Abstract: Disclosed herein are embodiments of an electrolyte that is stable and efficient at high voltages. The electrolyte can be used in combination with certain cathodes that exhibit poor activity at such high voltages with other types of electrolytes and can further be used in combination with a variety of anodes. In some embodiments, the electrolyte can be used in battery systems comprising a lithium cobalt oxide cathode and lithium metal anodes, silicon anodes, silicon/graphite composite anodes, graphite anodes, and the like.Type: GrantFiled: December 21, 2018Date of Patent: August 17, 2021Assignee: Battelle Memorial InstituteInventors: Xiaodi Ren, Wu Xu, Ji-Guang Zhang
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Patent number: 11081727Abstract: Provided is a solid electrolyte containing a crystal phase having a chemical composition Li7(1+x)?3?2+aO12+3.5x+b, where ? includes Pr, ? includes Zr, ?0.05?x?0.35, ?0.5?a?0.5, and ?0.5?b?0.5.Type: GrantFiled: August 7, 2019Date of Patent: August 3, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Eiichi Koga, Yoshiko Higashi
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Patent number: 11075383Abstract: Material compositions are provided that may comprise, for example, a vertically aligned carbon nanotube (VACNT) array, a conductive layer, and a carbon interlayer coupling the VACNT array to the conductive layer. Methods of manufacturing are provided. Such methods may comprise, for example, providing a VACNT array, providing a conductive layer, and bonding the VACNT array to the conductive layer via a carbon interlayer.Type: GrantFiled: December 29, 2017Date of Patent: July 27, 2021Assignee: GEORGIA TECH RESEARCH CORPORATIONInventors: Gleb Nikolayevich Yushin, Kara Linn Evanoff
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Patent number: 11075373Abstract: A positive electrode for a metal secondary battery includes a positive current collector; and a positive active material layer disposed on the positive current collector, wherein the positive active material layer includes: a positive active material, a salt including an alkali metal salt, an alkaline earth metal salts, or a combination thereof, and a polymeric first binder including a repeating unit represented by Formula 1 wherein R is a substituted or unsubstituted C2-C5 alkylene group, a substituted or unsubstituted C2-C6 alkoxylene group, a substituted or unsubstituted C2-C6 alkoxycarbonylene group, a substituted or unsubstituted C2-C6 alkylene oxide group, or a combination thereof, and n is an integer from 90 to 2,700. Also a metal secondary battery including the same.Type: GrantFiled: October 18, 2017Date of Patent: July 27, 2021Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Dongjin Lee, Joonseon Jeong, Chansu Kim, Yooseong Yang, Taehwan Yu
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Patent number: 11069888Abstract: A simple solution processing method is developed to achieve uniform and scalable stabilized lithium metal powder coating on Li-ion negative electrode. A solvent and binder system for stabilized lithium metal powder coating is developed, including the selection of solvent, polymer binder and enhancement of polymer concentration. The enhanced binder solution is 1% concentration of polymer binder in xylene, and the polymer binder is chosen as the mixture of poly(styrene-co-butadiene) rubber (SBR) and polystyrene (PS). Long-sustained, uniformly dispersed stabilized lithium metal powder suspension can be achieved with the enhanced binder solution. A uniform stabilized lithium metal powder coating can be achieved with simple doctor blade coating method and the resulting stabilized lithium metal powder coating can firmly glued on the anode surface.Type: GrantFiled: January 4, 2017Date of Patent: July 20, 2021Assignee: APPLIED MATERIALS, INC.Inventors: Gao Liu, Sergey D. Lopatin, Eric H. Liu, Ajey M. Joshi, Guo Ai, Zhihui Wang, Hui Zhao, Donghai Wang
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Patent number: 11063247Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery comprising the same.Type: GrantFiled: August 9, 2019Date of Patent: July 13, 2021Assignee: ECOPRO BM CO., LTD.Inventors: Moon Ho Choi, Gyeong Jae Heo, Hyun Jong Yu, Seung Hyun Choi
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Patent number: 11056726Abstract: Provided herein is a positive temperature coefficient film comprising an inorganic positive temperature coefficient compound. Also provided herein are a positive temperature coefficient electrode, a positive temperature coefficient separator, and a positive temperature coefficient lithium secondary battery, each of which comprises the positive temperature coefficient film.Type: GrantFiled: May 3, 2019Date of Patent: July 6, 2021Assignee: American Lithium Energy CorporationInventors: Jiang Fan, Dengguo Wu
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Patent number: 11050057Abstract: Provided are an electrode active material for a secondary battery containing a first electrode active material and a second electrode active material, in which the first electrode active material expands during charging and contracts during discharging, the second electrode active material contracts during charging and expands during discharging, some of particles constituting the first electrode active material and some of particles constituting the second electrode active material are in contact with each other, and an interface in which the particles constituting the first active material and the particles constituting the second active material are in contact with each other forms a solid solution to form a crystal portion, a solid electrolyte composition, an electrode sheet for an all-solid state secondary battery, and an all-solid state secondary battery for which the electrode active material for a secondary battery is used, and methods for manufacturing the electrode active material for a secondary baType: GrantFiled: August 23, 2018Date of Patent: June 29, 2021Assignee: FUJIFILM CorporationInventors: Hiroshi Kaga, Hiroaki Mochizuki
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Patent number: 11043696Abstract: Metal alloy layers on substrates. The metal-alloy layers (e.g., lithium-metal layers, sodium-metal layers, and magnesium-metal layers) can be disposed on, for example, a solid-state electrolyte material. The metal-alloy layers can be used in, for example, solid-state batteries. A metal alloy layer can be an anode or part of an anode of a solid state battery.Type: GrantFiled: May 1, 2017Date of Patent: June 22, 2021Assignee: UNIVERSITY OF MARYLAND, COLLEGE PARKInventors: Liangbing Hu, Eric D. Wachsman, Yunhui Gong, Kun Fu, Wei Luo, Chengwei Wang
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Patent number: 11043666Abstract: Disclosed are a composite material for cathode materials in a secondary battery, a method of manufacturing the same, and a lithium secondary battery including the same. A composite material for cathode materials in a secondary battery includes: a charge carrier ion compound-carbon composite including a carbon particle and a charge carrier ion compound particle represented by general formula of AxDy and dispersed on a surface of the carbon particle; and a transition metal compound represented by a general formula of MzRw. In the general formulae of AxDy and MzRw, A, D, M, R, x, y, z, and w are as defined in the detailed description.Type: GrantFiled: January 19, 2017Date of Patent: June 22, 2021Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Kisuk Kang, Sungkyun Jung, Taeghwan Hyeon, Myounghwan Oh, Min Gee Cho
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Patent number: 11038197Abstract: The present invention is directed to aqueous and hybrid aqueous electrolytes that comprise a lithium salt. The present invention is also directed to methods of making the electrolytes and methods of using the electrolytes in batteries and other electrochemical technologies.Type: GrantFiled: September 28, 2016Date of Patent: June 15, 2021Assignees: University of Maryland, College Park, The United States of America as Represented By The Secretary of the ArmyInventors: Kang Xu, Arthur Von Wald Cresce, Oleg A. Borodin, Chunsheng Wang, Liumin Suo
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Patent number: 11024877Abstract: Provided herein are apparatus, systems, and methods of powering electric vehicles. A battery pack can be disposed in an electric vehicle to power the electric vehicle. The apparatus can include a battery cell. A battery cell can have a housing that defines a cavity. The battery cell can have a solid electrolyte. The electrolyte can be arranged within the cavity. The battery cell can have a cathode disposed within the cavity along a first side of the electrolyte. The battery cell can have a functional layer disposed within the cavity along a second side of the electrolyte. A first side of the functional layer can be in contact with a second side of the electrolyte. The functional layer can form an alloy with lithium material received via the electrolyte. The battery cell can have a scaffold layer disposed within the cavity along a second side of the functional layer.Type: GrantFiled: December 4, 2018Date of Patent: June 1, 2021Assignee: TeraWatt Technology Inc.Inventors: Ken Ogata, Hiroshi Imoto
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Patent number: 11024849Abstract: Provided is a lithium secondary battery containing an anode, a cathode, a porous separator disposed between the anode and the cathode, an electrolyte, and a lithium ion reservoir disposed between the anode and the porous separator and configured to receive lithium ions from the cathode when the battery is charged and enable the lithium ions to enter the anode in a time-delayed manner, wherein the reservoir comprises a conducting porous framework structure having pores (pore size from 1 nm to 500 ?m) and lithium-capturing groups residing in the pores, wherein the lithium-capturing groups are selected from (a) redox forming species that reversibly form a redox pair with a lithium ion; (b) electron-donating groups interspaced between non-electron-donating groups; (c) anions and cations wherein the anions are more mobile than the cations; or (d) chemical reducing groups that partially reduce lithium ions from Li+1 to Li+?, wherein 0<?<1.Type: GrantFiled: June 12, 2018Date of Patent: June 1, 2021Assignee: Global Graphene Group, Inc.Inventors: Hui He, Chueh Liu, Aruna Zhamu, Bor Z. Jang
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Patent number: 11024840Abstract: Provided is a rechargeable alkali metal-sulfur cell comprising an anode active material layer, a cathode active material layer, a discrete anode-protecting layer disposed between the anode active material layer and the cathode active material layer, and an electrolyte (but no porous separator), wherein the anode-protecting layer has a thickness from 1 nm to 100 ?m and comprises an elastomer having a fully recoverable tensile elastic strain from 2% to 1,000% and a lithium ion conductivity from 10?8 S/cm to 5×10?2 S/cm when measure at room temperature. The cathode layer comprises a sulfur-containing material selected from a sulfur-carbon hybrid, sulfur-graphite hybrid, sulfur-graphene hybrid, conducting polymer-sulfur hybrid, metal sulfide, sulfur compound, or a combination thereof. This battery exhibits an excellent combination of high sulfur content, high sulfur utilization efficiency, high energy density, no known dendrite issue, no dead lithium or dead sodium issue, and a long cycle life.Type: GrantFiled: January 7, 2019Date of Patent: June 1, 2021Assignee: Global Graphene Group, Inc.Inventor: Bor Z. Jang
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Patent number: 11024844Abstract: An electrochemically active material includes an active phase that includes silicon, and at least one inactive phase having a Scherrer Grain Size of greater than 5 nanometers. Each inactive phase of the material having a Scherrer Grain Size of greater than 5 nanometers has a lattice mismatch to Li15Si4 of greater than 5%.Type: GrantFiled: September 2, 2020Date of Patent: June 1, 2021Assignee: Johnson Matthey Public Limited CompanyInventors: Xiaohua Ma, Mark N. Obrovac
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Patent number: 10998141Abstract: A mixture of amorphous PAHs and at least one of a carrier ion storage metal, a Sn compound, a carrier ion storage alloy, a metal compound, Si, Sb, and SiO2 is used as the negative electrode active material. The theoretical capacity of amorphous PAHs greatly exceeds that of a graphite based carbon material. Thus, the use of amorphous PAHs enables the negative electrode active material to have a higher capacity than in the case of using the graphite-based carbon material. Further, addition of at least one of the carrier ion storage metal, the Sn compound, the carrier ion storage alloy, the metal compound, Si, Sb, and SiO2 to the amorphous PAHs enables the negative electrode active material to have a higher capacity than the case of only using the amorphous PAHs.Type: GrantFiled: April 6, 2020Date of Patent: May 4, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yumiko Saito, Rie Yokoi, Mayumi Mikami
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Patent number: 10991941Abstract: A method of producing a composite material for a lithium ion secondary battery disclosed here includes a step of preparing a mixture which contains a positive electrode active material and an inorganic phosphorus compound constituting a composite material and in which the solid content is 90 mass % or higher (a mixture preparing step S10); and a step in which the mixture is stirred at a predetermined stirring rate or higher, and a coating made of lithium phosphate from at least a part of a lithium compound present on the surface of the positive electrode active material and the inorganic phosphorus compound is formed on the surface of the positive electrode active material (a coating forming step S20). Here, the composite material includes the positive electrode active material and the coating formed on the surface of the positive electrode active material.Type: GrantFiled: December 18, 2019Date of Patent: April 27, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tomohiro Yokoyama
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Patent number: 10991922Abstract: The present invention relates to a method for producing a microelectronic device successively comprising: a formation of a first current collector on a face of a substrate; a formation of a first electrode (14) on, and in electrical continuity with, a portion of the first current collector; a heat treatment configured to treat the first electrode (14) characterised by the fact that: the formation of the first collector comprises a formation of a first collector layer (12) on the face of the substrate and a formation of a second collector layer (13) covering at least one part, called covered part, of the first collector layer (12) and having a first face in contact with the first electrode (14), the second collector layer (13) is configured to protect the covered part during the heat treatment, such that the heat treatment does not oxidise said covered part.Type: GrantFiled: December 20, 2018Date of Patent: April 27, 2021Assignee: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Christophe Dubarry, Francoise Geffraye, Sami Oukassi
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Patent number: 10985371Abstract: A negative electrode includes a negative electrode current collector and a negative electrode active material layer that is provided on the negative electrode 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 reflectance Ra in a range of 7.0?Ra?14.8% at a wavelength of 550 nm. A lithium ion secondary battery includes the negative electrode, a positive electrode, a separator, and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution includes a nonaqueous solvent and an electrolyte, the nonaqueous solvent contains ethylene carbonate, and the ethylene carbonate is contained in a range of 10 to 30 vol. % in the entire nonaqueous solvent.Type: GrantFiled: March 7, 2019Date of Patent: April 20, 2021Assignee: TDK CORPORATIONInventors: Keitaro Otsuki, Tetsu Sato, Masahiro Saegusa
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Patent number: 10971731Abstract: A main object of the present disclosure is to provide an electrode current collector in which the peel-off of a coating layer and an aluminum oxide layer is inhibited. The present disclosure achieves the object by providing an electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order; and an Al—F bond is present in the aluminum oxide layer.Type: GrantFiled: December 5, 2018Date of Patent: April 6, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yuki Matsushita
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Patent number: 10971720Abstract: A positive electrode active material includes secondary particles. The secondary particles include a plurality of primary particles. The primary particles include a lithium-containing composite metal oxide. Inside the secondary particles, an electron conducting oxide is disposed at at least a part of a grain boundary between the primary particles. The electron conducting oxide has a perovskite structure.Type: GrantFiled: April 16, 2018Date of Patent: April 6, 2021Assignees: Toyota Jidosha Kabushiki Kaisha, Sumitomo Metal Mining Co., Ltd.Inventors: Ryuta Sugiura, Satoshi Kanada, Tetsutaro Hayashi, Taira Aida
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Patent number: 10964953Abstract: A main object of the present disclosure is to provide an electrode current collector in which the peel-off of a coating layer and an aluminum oxide layer is inhibited. The present disclosure achieves the object by providing an electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order; and the current collecting layer has a porous structure on a surface of the aluminum oxide layer side.Type: GrantFiled: January 29, 2019Date of Patent: March 30, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yuki Matsushita
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Patent number: 10957905Abstract: A silicon based material in the form of sheet-like silicon porous particles in an electrically conductive material matrix wherein said silicon particles contain nano-sized pores, and a method of producing thereof, are disclosed. The material and the method allow obtaining Li ion batteries with high electric charge capacity and improved cycling performance of the battery anode.Type: GrantFiled: October 31, 2018Date of Patent: March 23, 2021Inventors: Yunjun Li, Igor Pavlovsky, Mohshi Yang
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Patent number: 10944113Abstract: An electrode includes a current collector, a metal shell in direct contact with and encapsulating the current collector, green dendritic columnar growths extending out of the metal shell and having protrusions thereon, and active material in contact with the metal shell and having embedded therein the green dendritic columnar growths. The protrusions penetrate the active material to form a mechanical retainer that prevents delamination of the active material from the metal shell and define localized regions of increased current density during operation of the electrode that promote deposition of the active material first on the protrusions and then on areas of the green dendritic columnar growths adjacent to the protrusions such that the active material electrochemically adheres to the green dendritic columnar growths and the protrusions enlarge during repeated charge and discharge cycling of the electrode.Type: GrantFiled: February 27, 2020Date of Patent: March 9, 2021Assignee: ZAF ENERGY SYSTEMS, INCORPORATEDInventors: Melissa D. McIntyre, Adam Weisenstein, Kurt Salloux
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Patent number: 10944106Abstract: The present application relates to a metal oxide and synthesis of a lithium ion battery. Specifically, the present application selects a cobalt oxide compound, which uses Co3O4 as a main body, as a precursor of lithium cobalt oxide, and anion doping is performed in particles of Co3O4 to obtain a doped precursor for lithium cobalt oxide. The general formula of the precursor can be expressed as Co3(O1-yMy)4, where about 0<y<about 0.2, and wherein the anion M comprises at least one of F, P, S, Cl, N, As, Se, Br, Te, I or At. The lithium ion battery with a cathode made of lithium cobalt oxide material prepared by using the precursor presents good cycle stability in a high voltage charge-discharge environment.Type: GrantFiled: October 31, 2018Date of Patent: March 9, 2021Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Pengwei Chen, Meng Wang, Leimin Xu, Liang Wang