The Alkali Metal Is Lithium Patents (Class 429/231.95)
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Patent number: 11967696Abstract: The invention is directed to a process for forming a particle film on a substrate. Preferably, a series of corona guns, staggered to optimize film thickness uniformity, are oriented on both sides of a slowly translating grounded substrate (copper or aluminum for the anode or cathode, respectively). The substrate is preferably slightly heated to induce binder flow, and passed through a set of hot rollers that further induce melting and improve film uniformity. The sheeting is collected on a roll or can be combined in-situ and rolled into a single-cell battery. The invention is also directed to products formed by the processes of the invention and, in particular, batteries.Type: GrantFiled: December 16, 2020Date of Patent: April 23, 2024Assignee: Dragonfly Energy Corp.Inventors: Denis Phares, Justin S. Ferranto
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Patent number: 11967678Abstract: Electrolyte-infiltrated composite electrode includes an electrolyte component consisting of a polymer matrix with ceramic nanoparticles embedded in the matrix to form a networking structure of electrolyte. Suitable ceramic nanoparticles have the basic formula Li7La3Zr2O12 (LLZO) and its derivatives such as AlxLi7-xLa3Zr2-y-zTayNbzO12 where x ranges from 0 to 0.85, y ranges from 0 to 0.50 and z ranges from 0 to 0.75, wherein at least one of x, y and z is not equal to 0. The networking structure of the electrolyte establishes an effective lithium-ion transport pathway in the electrode and strengthens the contact between electrode layer and solid-state electrolyte resulting in higher lithium-ion electrochemical cell's cycling stability and longer battery life. Sold-state electrolytes incorporating the ceramic particles demonstrate improved performance.Type: GrantFiled: January 16, 2023Date of Patent: April 23, 2024Assignee: Solid Energies, Inc.Inventors: Zhigang Lin, Chunhu Tan, Tianyu Meng
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Patent number: 11967674Abstract: An electrochemical device, including a positive electrode, a negative electrode, a separator and an electrolyte. The electrolyte includes a nitrile compound, and the mass percentage of the nitrile compound in the electrolyte is A %; the negative electrode includes a current collector, wherein the current collector comprises a first region and a second region; the first region is provided with a negative electrode active substance layer; the second region does not comprise a negative electrode active substance layer; the area of the second region is B % of the surface area of the current collector; and A×B<600.Type: GrantFiled: March 3, 2020Date of Patent: April 23, 2024Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Lilan Zhang, Chao Tang, Jianming Zheng
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Patent number: 11965226Abstract: The present invention relates to a lithium metal powder, a preparing method thereof, and an electrode including the same, wherein the method for preparing the lithium metal powder includes: providing a lithium metal material and a ultrasonication solution; mixing the lithium metal material and the ultrasonication solution to form a mixed solution; and ultrasonically vibrating the mixed solution to form a lithium metal powder, wherein the lithium metal powder is covered by a protective layer, and the aforementioned protective layer includes a protective layer material, wherein the protective layer material includes a sulfide, fluoride, or nitride, or a combination thereof.Type: GrantFiled: October 17, 2022Date of Patent: April 23, 2024Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITYInventors: Jeng-Kuei Chang, Si-Hao Chen
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Patent number: 11958757Abstract: The present disclosure relates to the technical field of lithium ion battery, and discloses a Lithium-Manganese-rich material and a preparation method and a use thereof.Type: GrantFiled: March 3, 2021Date of Patent: April 16, 2024Assignee: BEIJING EASPRING MATERIAL TECHNOLOGY CO., LTD.Inventors: Jun Wang, Yafei Liu, Yanbin Chen
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Patent number: 11961997Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, containing negative electrode active material particles, including silicon compound particles each containing a silicon compound (SiOx: 0.5?x?1.6) and at least one or more of Li2SiO3 and Li2Si2O5, the material includes a phosphate, the negative electrode active material particles each have a surface containing lithium element, and a ratio mp/ml satisfies 0.02?mp/ml?3, where ml represents a molar quantity of the lithium element and contained per unit mass of the particles, and mp represents a molar quantity of phosphorus element contained per unit mass of the particles. Thereby, a negative electrode active material is capable of stabilizing an aqueous negative electrode slurry prepared in producing a negative electrode of a secondary battery, and capable of improving initial charge-discharge characteristics when the negative electrode active material is used for a secondary battery.Type: GrantFiled: September 25, 2019Date of Patent: April 16, 2024Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takumi Matsuno, Hidekazu Awano, Takakazu Hirose, Kohta Takahashi, Yusuke Osawa
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Composite interlayer for lithium metal based solid state batteries and the method of making the same
Patent number: 11955639Abstract: A solid-state electrochemical cell that cycles lithium ions includes a solid-state electrolyte that defines a first major surface and an electrode that defines a second major surface. The solid-state electrochemical cell also includes an interfacial layer disposed between the first major surface of the solid-state electrolyte and the second major surface of the electrode. The interfacial layer may include an ion-conductor disposed in an organic matrix.Type: GrantFiled: May 4, 2021Date of Patent: April 9, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mengyuan Chen, Xingcheng Xiao -
Patent number: 11955633Abstract: This disclosure relates to the electrochemical field, and in particular, to a positive electrode material and a preparation method and usage thereof. The positive electrode material of this disclosure includes a substrate, where a general formula of the substrate is LixNiyCozMkMepOrAm, where 0.95?x?1.05, 0.5?y?1, 0?z?1, 0?k?1, 0?p?0.1, 1?r?5.2, 0?m?2, m+r?2, M is selected from one or more of Mn and Al, Me is selected from one or more of Zr, Zn, Cu, Cr, Mg, Fe, V, Ti, Sr, Sb, Y, W, and Nb, and A is selected from one or more of N, F, S, and Cl; and an oxygen defect level of the positive electrode material satisfies at least one of condition (1) or condition (2): (1) 1.77?OD1?1.90; or (2) 0.69?OD2?0.74.Type: GrantFiled: November 3, 2021Date of Patent: April 9, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Chongheng Shen, Rui Du, Yongchao Liu, Deyu Zhao, Na Liu
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Patent number: 11955624Abstract: The present disclosure relates to blended cathode materials for use as a positive electrode material of a rechargeable electrochemical cell (or secondary cell) (such as a lithium-ion secondary battery) and also relates to a secondary battery including a cathode having the blended cathode materials. In particular, disclosed are blends of lithium vanadium fluorophosphate (LVPF) or a derivative thereof with one or more conventional cathode active materials in certain weight ratios thereof.Type: GrantFiled: October 29, 2020Date of Patent: April 9, 2024Assignee: SAFT AMERICAInventors: Xilin Chen, Frank Cao
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Patent number: 11949089Abstract: An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode. At least one of the electrodes can include an electrode film prepared by a dry process. The electrode film and/or the electrode can comprise a prelithiating material. Processes and apparatuses used for fabricating the electrode and/or electrode film are also described.Type: GrantFiled: January 14, 2020Date of Patent: April 2, 2024Assignee: Tesla, Inc.Inventors: Ziying Wang, Hieu Minh Duong
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Patent number: 11949062Abstract: A pressing jig for removing gas generated in an activation process of a battery cell includes a plate-shaped lower plate on which the battery cell that has undergone the activation process is placed and fixed, and an upper plate that presses the battery cell placed on the lower plate from above. At least one of the upper plate or the lower plate has a structure in which n (n?3) separated sub-plates are assembled to form a single plate, and the sub-plates independently press the battery cell. The pressing jig can suppress trapping of internal gas by sequentially pressing the battery cell.Type: GrantFiled: January 8, 2021Date of Patent: April 2, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Suk Hyun Hong, Joon Sung Bae, Eui Kyung Lee, Sang Jih Kim, Beom Koon Lee, Dong Hun Bae
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Patent number: 11949108Abstract: A negative electrode including a negative electrode active material layer and an additive. The additive includes a metal sulfide. The additive is distributed in the negative electrode active material layer, and/or distributed on the surface of the negative electrode active material layer. The negative electrode effectively improves the performance of the lithium ion battery, and greatly improves the capacity and cycle performance of the lithium ion battery.Type: GrantFiled: July 27, 2020Date of Patent: April 2, 2024Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Jing Jiang, Qiao Zeng, Kefei Wang
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Patent number: 11942629Abstract: A lithium electrode having an acrylic polymer layer formed on a lithium metal layer wherein the acrylic polymer layer functions as a protective layer for the lithium metal layer, and functions as a release layer in the manufacturing process of the lithium electrode. The acrylic polymer layer shows an effect that does not act as a resistance in the lithium secondary battery comprising the lithium electrode during operation of the battery.Type: GrantFiled: January 10, 2020Date of Patent: March 26, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Suk Il Youn, Byoungkuk Son, Junghun Choi, Minchul Jang
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Patent number: 11940501Abstract: The present invention relates to a method and an apparatus for diagnosing low voltage of a secondary battery cell. The method for diagnosing low voltage of a secondary battery cell according to an embodiment of the present invention includes pre-aging a battery cell, charging the battery cell according to a preset charging condition, measuring a parameter for determining low voltage failure of the battery cell, comparing the measured parameter with a reference parameter, and performing formation when the battery cell is determined to be normal.Type: GrantFiled: October 4, 2019Date of Patent: March 26, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Yong Tae Lee, Myung Hoon Ko, Jee Ho Kim, Gyung Soo Kang
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Patent number: 11936000Abstract: A solid polymer electrolyte composition and a solid polymer electrolyte are disclosed. More particularly, a solid polymer electrolyte composition and a solid polymer electrolyte formed by photocuring the same are disclosed, including a polymer (A) containing alkylene oxide and having one reactive double bond, a multifunctional cross-linkable polymer (B), and an ionic liquid, wherein the ionic liquid includes an amide-based solvent and a lithium salt.Type: GrantFiled: September 20, 2019Date of Patent: March 19, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Lucia Kim, Jehoon Lee, Jonghyun Chae, Dong Hyeop Han, Wansoo Chang
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Patent number: 11926933Abstract: The disclosure relates to a method of making carbon fiber, the method comprising pyrolyzing poly(p-phenylene) (PPP) fiber at a temperature sufficient to convert PPP fiber substantially to carbon fiber. The disclosure also relates to pre-PPP polymer, methods for making PPP fiber from pre-PPP polymer and, in turn, making carbon fiber from PPP fiber.Type: GrantFiled: October 30, 2020Date of Patent: March 12, 2024Assignee: University of MassachusettsInventors: Nese Orbey, Carl W. Lawton, Burcin Ikizer
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Patent number: 11929519Abstract: The present invention relates to a separator for a secondary battery, the separator including a substrate and a coating layer formed on the surface of the substrate, wherein the coating layer includes an organic binder and inorganic particles, and the organic binder contains an ethylenically unsaturated group, and to a lithium secondary battery including the same.Type: GrantFiled: January 17, 2019Date of Patent: March 12, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Won Kyung Shin, Kyoung Ho Ahn, Chul Haeng Lee, Jae Won Lee
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Patent number: 11926903Abstract: Methods for etching alkali metal compounds are disclosed. Some embodiments of the disclosure expose an alkali metal compound to an alcohol to form a volatile metal alkoxide. Some embodiments of the disclosure expose an alkali metal compound to a ?-diketone to form a volatile alkali metal ?-diketonate compound. Some embodiments of the disclosure are performed in-situ after a deposition process. Some embodiments of the disclosure provide methods which selectively etch alkali metal compounds.Type: GrantFiled: June 9, 2022Date of Patent: March 12, 2024Assignee: Applied Materials, Inc.Inventors: Nitin Deepak, Tapash Chakraborty, Prerna Sonthalia Goradia, Visweswaren Sivaramakrishnan, Nilesh Chimanrao Bagul, Bahubali S. Upadhye
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Patent number: 11923534Abstract: A non-aqueous electrolyte secondary battery which is obtained using a lithium composite oxide having a layered structure and coated with a tungsten-containing compound in a positive electrode active substance, and which has a low initial resistance, and in which an increase in resistance following repeated charging and discharging is suppressed. The non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode active substance layer containing a lithium composite oxide having a layered structure. The lithium composite oxide includes a porous particle having a void ratio of not less than 20% but not more than 50%. The porous particle contains two or more voids having diameters that are at least 10% of the particle diameter of the porous particle. The surface of the porous particle is provided with a coating containing tungsten oxide and lithium tungstate.Type: GrantFiled: July 10, 2020Date of Patent: March 5, 2024Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO METAL MINING CO., LTD.Inventors: Yuji Yamamoto, Momoko Procter, Yoshinari Makimura, Tetsutaro Hayashi, Willy Shun Kai Bong
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Patent number: 11923541Abstract: A lithium ion secondary cell comprising a positive electrode, a negative electrode, and a non-aqueous electrolyte that contains lithium ions, the lithium ion secondary cell being such that: the positive electrode has a positive electrode current collector and a positive electrode active material layer; the positive electrode active material layer contains a positive electrode active material and a lithium compound; the positive electrode active material includes a transition metal oxide; the concentration of the lithium compound, which is the portion other than the positive electrode active material in the positive electrode active material layer, is 0.1-10 mass %; the negative electrode has a negative electrode current collector and a negative electrode active material layer; the negative electrode active material layer contains 50-95 mass % of a carbon material and 5-50 mass % of an alloy-based active material.Type: GrantFiled: July 16, 2019Date of Patent: March 5, 2024Assignee: Asahi Kasei Kabushiki KaishaInventors: Kazuteru Umetsu, Nobuhiro Okada
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Patent number: 11923502Abstract: An all-solid secondary battery includes a solid electrolyte layer disposed between an anode layer and a cathode layer, where the solid electrolyte layer contains a first solid electrolyte layer including a first solid electrolyte and a second electrolyte layer including a second solid electrolyte, where the first solid electrolyte is disposed proximate to the anode layer, the second solid electrolyte layer is disposed proximate to the cathode layer, and the first solid electrolyte has a lithium ion conductivity greater than a lithium ion conductivity of the second solid electrolyte, where a difference between the lithium ion conductivity of the first solid electrolyte and the lithium ion conductivity of the second solid electrolyte is equal to or greater than about 2 mS/cm.Type: GrantFiled: July 13, 2020Date of Patent: March 5, 2024Assignee: SAMSUNG SDI CO., LTD.Inventors: Junhwan Ku, Toshinori Sugimoto
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Patent number: 11916200Abstract: The disclosure herein relates to rechargeable batteries and solid electrolytes therefore which include lithium-stuffed garnet oxides, for example, in a thin film, pellet, or monolith format wherein the density of defects at a surface or surfaces of the solid electrolyte is less than the density of defects in the bulk. In certain disclosed embodiments, the solid-state anolyte, electrolyte, and catholyte thin films, separators, and monoliths consist essentially of an oxide that conducts Li+ ions. In some examples, the disclosure herein presents new and useful solid electrolytes for solid-state or partially solid-state batteries. In some examples, the disclosure presents new lithium-stuffed garnet solid electrolytes and rechargeable batteries which include these electrolytes as separators between a cathode and a lithium metal anode.Type: GrantFiled: October 19, 2017Date of Patent: February 27, 2024Inventors: David Cao, Cheng-Chieh Chao, Zhebo Chen, Lei Cheng, Niall Donnelly, Wes Hermann, Tim Holme, Tommy Huang, Kian Kerman, Yang Li, Harsh Maheshwari
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Patent number: 11905593Abstract: The disclosure relates to a process for preparing particulate materials having high electrochemical capacities that are suitable for use as anode active materials in rechargeable metal-ion batteries. In one aspect, the disclosure provides a process for preparing a particulate material comprising a plurality of composite particles. The process includes providing particulate porous carbon frameworks comprising micro pores and/or mesopores, wherein the porous carbon frameworks have a D50 particle diameter of at least 20 ?m; depositing an electroactive material selected from silicon and alloys thereof into the micropores and/or mesopores of the porous carbon frameworks using a chemical vapour infiltration process in a fluidised bed reactor, to provide intermediate particles; and comminuting the intermediate particles to provide said composite particles.Type: GrantFiled: December 20, 2019Date of Patent: February 20, 2024Assignee: Nexeon LimitedInventors: Sefa Yilmaz, Charles A. Mason, Richard Gregory Taylor, David Bent
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Patent number: 11909001Abstract: An apparatus for manufacturing an all-solid-state battery includes: a mold unit which includes a first hole extending vertically so as to have a shape and a width identical with a shape and a width of the all-solid-state battery, and a second hole extending horizontally so as to horizontally communicate with the first hole; a first pressing unit which includes a first protrusion member corresponding to the first hole, which is coupled with an upper part of the mold unit, and which presses downwards raw materials of the all-solid-state battery filling the first hole, and a second pressing unit which includes a second protrusion member corresponding to the first hole, which is coupled with a lower part of the mold unit, and which presses upwards the raw materials of the all-solid-state battery filling the first hole.Type: GrantFiled: August 10, 2021Date of Patent: February 20, 2024Assignees: Hyundai Motor Company, Kia Corporation, Institute for Research & Industry Cooperation Pusan National UniversityInventors: Ju Yeong Seong, In Woo Song, Hong Seok Min, Yong Sub Yoon, Yun Sung Kim, Yong Jun Jang, Sung Woo Noh, In Chul Kim, A Reum Ha, Heon Cheol Shin, Yong Guk Gwon, Ji Ung Jeong, Seong Hyeok Ha
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Patent number: 11909036Abstract: The present invention relates to the field of anode materials of lithium batteries, and in particular, relates to a silicon/carbon composite material with a highly compact structure. The silicon/carbon composite material with the highly compact structure includes silicon particles and a carbon coating layer, and further includes a highly compact carbon matrix, wherein the silicon particles are distributed inside the highly compact carbon matrix evenly and dispersively and forms an inner core; and the silicon/carbon composite with the highly compact structure is compact inside without voids or has few closed voids inside. The present invention provides the silicon/carbon composite material with the highly compact structure with a reduced volumetric expansion effect and an improved cycle performance, a method for preparing the same, and a use thereof.Type: GrantFiled: September 29, 2021Date of Patent: February 20, 2024Assignee: Guangdong Kaijin New Energy Technology Co., Ltd.Inventors: Anhua Zheng, Dexin Yu, Yongjun Yang
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Patent number: 11909032Abstract: A composite cathode active material includes: a core including a plurality of primary particles; and a shell on the core, wherein the primary particles include a first lithium transition metal oxide comprising nickel, the shell includes a first layer and a second layer on the first layer, the first layer includes a first composition containing a first metal, the second layer includes a second composition containing phosphorus, and the first metal includes at least one or more metal, other than nickel, belonging to any of Groups 2 to 5 and Groups 7 to 15 of the Periodic Table of the Elements. Also a cathode, and a lithium battery each including the composite cathode active material, and a method of preparing the composite cathode active material.Type: GrantFiled: July 8, 2019Date of Patent: February 20, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Sukgi Hong, Byongyong Yu, Donghee Yeon, Byungjin Choi
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Patent number: 11905184Abstract: Provided are processes for the formation of electrochemically active materials such as lithiated transition metal oxides that solve prior issues with throughput and calcination. The processes include forming the materials in the presence of a processing additive that includes potassium prior to calcination that produces active materials with increased primary particle grain sizes.Type: GrantFiled: November 8, 2019Date of Patent: February 20, 2024Assignee: BASF CorporationInventors: William C. Mays, Benjamin Reichman, Martin Lawrence Panchula
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Patent number: 11901544Abstract: An ion conductor including: at least one oxide represented by Formulae 1 to 3 Li4±xM1?x?M?x?O4 ??Formula 1 wherein in Formula 1, 0?x?1 and 0?x??1 , M is a Group 4 element, M? is an element of Group 2, an element of Group 3, an element of Group 5, an element of Group 12, an element of Group 13, a vacancy, or a combination thereof, with the proviso that when M is Zr, then x?0, x??0 and M? is Be, Ca, Sr, Ba, Ra, Cd, Hg, Cn, Ga, In, TI, an element of Group 3, an element of Group 5, or a combination thereof; Li4?yM?O4?yA?y ??Formula 2 wherein in Formula 2, M? is a Group 4 element, A? includes at least one halogen, with the proviso that when M? is Zr, y?0, Li4+4zM??1?zO4 ??Formula 3 wherein in Formula 3, 0<z<1, and M?? is a Group 4 element.Type: GrantFiled: May 18, 2020Date of Patent: February 13, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangbok Ma, Donghwa Seo
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Patent number: 11901548Abstract: A positive electrode active material, which has a high capacity and excellent charge and discharge cycle performance, for a lithium-ion secondary battery is provided. Alternatively, a positive electrode active material that inhibits a decrease in capacity in charge and discharge cycles when used in a lithium-ion secondary battery is provided. Alternatively, a high-capacity secondary battery is provided. Alternatively, a highly safe or reliable secondary battery is provided. The positive electrode active material contains a first substance including a first crack and a second substance positioned inside the first crack. The first substance contains one or more of cobalt, manganese, and nickel, lithium, oxygen, magnesium, and fluorine. The second substance contains phosphorus and oxygen.Type: GrantFiled: June 11, 2019Date of Patent: February 13, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kazuhito Machikawa, Yohei Momma, Teruaki Ochiai, Mayumi Mikami
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Patent number: 11901551Abstract: An electrochemically active material includes silicon and a transition metal. At least 50 mole % of the transition metal is present in its elemental state, based on the total number of moles of transition metal elements present in the electrochemically active material. An electrochemically active material includes silicon and carbon. At least 50 mole % of the carbon is present in its elemental state, based on the total number of moles of carbon present in the electrochemically active material.Type: GrantFiled: January 5, 2021Date of Patent: February 13, 2024Assignee: SICONA BATTERY TECHNOLOGIES PTY LTDInventors: Mark N. Obrovac, Leyi Zhao, Vincent J. L. Chevrier
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Patent number: 11901504Abstract: This disclosure relates to a rechargeable battery cell comprising an active metal, at least one positive electrode having a discharge element, at least one negative electrode having a discharge element, a housing and an electrolyte, the negative electrode comprising metallic lithium at least in the charged state of the rechargeable battery cell and the electrolyte being based on SO2 and comprising at least one first conducting salt which has the formula (I), M being a metal selected from the group formed by alkali metals, alkaline earth metals, metals of group 12 of the periodic table of the elements, and aluminum; x being an integer from 1 to 3; the substituents R1, R2, R3 and R4 being selected independently of one another from the group formed by C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C10 cycloalkyl, C6-C14 aryl and C5-C14 heteroaryl; and Z being aluminum or boron.Type: GrantFiled: November 18, 2021Date of Patent: February 13, 2024Assignee: Innolith Technology AGInventors: Laurent Zinck, Claudia Wollfarth, Heide Biollaz
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Patent number: 11894518Abstract: Electrolytes are described with additives that provide good shelf life with improved cycling stability properties. The electrolytes can provide appropriate high voltage stability for high capacity positive electrode active materials. The core electrolyte generally can comprise from about 1.1M to about 2.5M lithium electrolyte salt and a solvent that consists essentially of fluoroethylene carbonate and/or ethylene carbonate, dimethyl carbonate and optionally no more than about 40 volume percent methyl ethyl carbonate, and wherein the lithium electrolyte salt is selected from the group consisting of LiPF6, LiBF4 and combinations thereof. Desirable stabilizing additives include, for example, dimethyl methylphosphonate, thiophene or thiophene derivatives, and/or LiF with an anion complexing agent.Type: GrantFiled: August 12, 2021Date of Patent: February 6, 2024Inventors: Swapnil J. Dalavi, Shabab Amiruddin, Bing Li
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Patent number: 11894561Abstract: Provided is a secondary battery comprising a cathode comprising a cathode current collector and a cathode mixture layer containing and a cathode active material, an anode comprising an anode current collector and coating layer, and a non-aqueous electrolyte containing a non-aqueous solvent and a lithium salt which has been dissolved in the non-aqueous solvent. A surface of the anode current collector is coated with the coating layer. The coating layer contains an alkaline earth metal fluoride. During charge, a lithium metal is deposited on the anode. During discharge, the lithium metal is dissolved in the non-aqueous electrolyte.Type: GrantFiled: April 29, 2020Date of Patent: February 6, 2024Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventor: Hirotetsu Suzuki
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Patent number: 11894550Abstract: An electrode comprising a space group Pna21 VOPO4 lattice, capable of electrochemical insertion and release of alkali metal ions, e.g., sodium ions. The VOPO4 lattice may be formed by solid phase synthesis of KVOPO4, milled with carbon particles to increase conductivity. A method of forming an electrode is provided, comprising milling a mixture of ammonium metavanadate, ammonium phosphate monobasic, and potassium carbonate; heating the milled mixture to a reaction temperature, and holding the reaction temperature until a solid phase synthesis of KVOPO4 occurs; milling the KVOPO4 together with conductive particles to form a conductive mixture of fine particles; and adding binder material to form a conductive cathode. A sodium ion battery is provided having a conductive NaVOPO4 cathode derived by replacement of potassium in KVOPO4, a sodium ion donor anode, and a sodium ion transport electrolyte. The VOPO4, preferably has a volume greater than 90 ?3 per VOPO4.Type: GrantFiled: March 28, 2022Date of Patent: February 6, 2024Assignee: The Research Foundation for The State University of New YorkInventors: M. Stanley Whittingham, Jia Ding
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Patent number: 11888147Abstract: A nonaqueous electrolyte secondary battery (10) in an example embodiment includes a positive electrode (11) having a lithium metal composite oxide, and a negative electrode (12) having graphite. The lithium metal composite oxide includes first composite oxide particles which are secondary particles formed by aggregation of primary particles having an average particle size of 50 nm to 5 ?m, and second composite oxide particles which are non-aggregated particles having an average particle size of 2 ?m to 20 ?m. The positive electrode (11) has lower initial charge/discharge efficiency than the initial charge/discharge efficiency of the negative electrode (12).Type: GrantFiled: February 1, 2019Date of Patent: January 30, 2024Assignees: PANASONIC HOLDINGS CORPORATION, PANASONIC ENERGY CO., LTD.Inventors: Yukihiro Oki, Shun Nomura, Atsushi Ogata
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Patent number: 11888153Abstract: A positive electrode active material, a positive electrode including the same, and a lithium secondary batter including the same are disclosed herein. In some embodiments, the positive electrode active material includes a lithium transition metal oxide, and a coating layer formed on a surface of the lithium transition metal oxide particle, wherein the coating layer is formed in a film form, and the coating layer includes a carbonized coating polymer and carbide.Type: GrantFiled: August 27, 2021Date of Patent: January 30, 2024Inventors: Dong Joon Ahn, Moon Kyu Cho, Sung Soon Park
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Patent number: 11888154Abstract: A positive electrode sheet may comprise a positive electrode current collector and a positive electrode film layer having a single-layer structure or a multi-layer structure provided on at least one surface thereof; when the positive electrode film layer is of a single-layer structure, at least one positive electrode film layer may comprise both a first positive electrode active material and a second positive electrode active material; and/or, when the positive electrode film layer is of a multi-layer structure, at least one layer of the at least one positive electrode film layer may comprise both a first positive electrode active material and a second positive electrode active material; the first positive electrode active material may comprises an inner core containing Li1+xMn1-yAyP1-zRzO4, a first coating layer containing pyrophosphate MP2O7 and phosphate XPO4 and covering the inner core, and a second coating layer containing carbon element and covering the first coating layer.Type: GrantFiled: June 20, 2023Date of Patent: January 30, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Xiang Zhou, Jiang Liu, Baiqing Li, Yao Jiang, Xiaomei Liu
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Patent number: 11881581Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.Type: GrantFiled: December 3, 2021Date of Patent: January 23, 2024Assignees: HONDA MOTOR CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Nam Hawn Chou, Kaoru Omichi, Ryan McKenney, Qingmin Xu, Christopher Brooks, Simon C. Jones, Isabelle M. Darolles, Hongjin Tan
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Patent number: 11881559Abstract: An energy storage device comprising a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode comprises a self-supporting composite material film, a separator between the first electrode and the second electrode, and an electrolyte in contact with the first electrode, the second electrode, and the separator, wherein the electrolyte comprises at least one of a fluorine-containing cyclic carbonate, a fluorine-containing linear carbonate, and a fluoroether. The composite material film having greater than 0% and less than about 90% by weight of silicon particles, and greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases can be a substantially continuous phase that holds the composite material film together such that the silicon particles are distributed throughout the composite material film.Type: GrantFiled: November 17, 2021Date of Patent: January 23, 2024Assignee: Enevate CorporationInventors: Heidi Leighette Anderson, Benjamin Yong Park, Hong Gan, Sung Won Choi
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Patent number: 11876231Abstract: Lithium-containing anodes, high performance electrochemical devices, such as secondary batteries, including the aforementioned lithium-containing electrodes, and methods for fabricating the same are provided. In one implementation, an anode electrode is provided. The anode electrode comprises a first diffusion barrier layer formed on a copper foil. The first diffusion barrier layer comprises titanium (Ti), molybdenum (Mo), tungsten (W), zirconium (Zr), hafnium (H), niobium (Nb), tantalum (Ta), or combinations thereof. The anode electrode further comprises a wetting layer formed on the first diffusion barrier layer. The wetting layer is selected from silicon (Si), tin (Sn), aluminum (Al), germanium (Ge), antimony (Sb), lead (Pb), bismuth (Bi), gallium (Ga), indium (In), zinc (Zn), cadmium (Cd), magnesium (Mg), oxides thereof, nitrides thereof, or combinations thereof. The anode electrode further comprises a lithium metal layer formed on the wetting layer.Type: GrantFiled: June 18, 2019Date of Patent: January 16, 2024Assignee: Applied Materials, Inc.Inventor: Dmitri A. Brevnov
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Patent number: 11876225Abstract: A solid-state ion conductor including a compound of Formula 1: Li1+(4?a)yAayM1?yXO5??Formula 1 wherein, in Formula 1, A is an element of Groups 1 to 3 or 11 to 13, or a combination thereof, wherein an oxidation state a of A is 1?a?3, M is an element having an oxidation state of +4 of Groups 4 or 14, or a combination thereof, X is an element having an oxidation state of +5 of Groups 5, 15, 17, or a combination thereof, and 0<y?1.Type: GrantFiled: May 17, 2021Date of Patent: January 16, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, LAWRENCE BERKELEY NATIONAL LABORATORYInventors: KyuJung Jun, Gerbrand Ceder, Yan Wang, Lincoln Miara, Yan Zeng, Yihan Xiao
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Patent number: 11870061Abstract: A composite cathode active material includes: a core including a plurality of primary particles; and a shell on the core, wherein the primary particles include a first lithium transition metal oxide comprising nickel, the shell includes a first layer and a second layer on the first layer, the first layer includes a first composition containing a first metal, the second layer includes a second composition containing phosphorus, and the first metal includes at least one or more metal, other than nickel, belonging to any of Groups 2 to 5 and Groups 7 to 15 of the Periodic Table of the Elements. Also a cathode, and a lithium battery each including the composite cathode active material, and a method of preparing the composite cathode active material.Type: GrantFiled: July 8, 2019Date of Patent: January 9, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Sukgi Hong, Byongyong Yu, Donghee Yeon, Byungjin Choi
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Patent number: 11870070Abstract: A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), and a glassy coating layer formed on surfaces of particles of the lithium composite transition metal oxide, wherein, in the lithium composite transition metal oxide, an amount of the nickel (Ni) in a total amount of transition metals is 60 mol % or more, and an amount of the manganese (Mn) is greater than an amount of the cobalt (Co), and the glassy coating layer includes a glassy compound represented by Formula 1. LiaM1bOc??[Formula 1] wherein, M1 is at least one selected from the group consisting of boron (B), aluminum (Al), silicon (Si), titanium (Ti), and phosphorus (P), and 1?a?4, 1?b?8, and 1?c?20.Type: GrantFiled: January 23, 2019Date of Patent: January 9, 2024Inventors: So Ra Baek, Min Suk Kang, Sang Wook Lee, Wang Mo Jung, Dong Hun Lee, Hye Lim Jeon, Eun Sol Lho
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Patent number: 11870076Abstract: A water-based binder for a non-aqueous electrolyte secondary battery. A binder for a non-aqueous electrolyte secondary battery electrode, includes a crosslinked polymer having a carboxyl group or a salt thereof, and the crosslinked polymer includes a structural unit derived from an ethylenically unsaturated carboxylic acid monomer; and a structural unit derived from a macromonomer including at least one compositional monomer selected from compounds represented by following formula (1): [C1] H2C?CR1—X??formula (1) wherein in formula (1), R1 represents a hydrogen or a methyl group; X represents C(?O)OR2 or CN; and R2 represents a straight chain or branched C1-C8 alkyl group or a C3-C8 alkyl group having an alicyclic structure.Type: GrantFiled: March 5, 2018Date of Patent: January 9, 2024Assignees: TOAGOSEI CO., LTD., PANASONIC ENERGY CO., LTD.Inventors: Naohiko Saito, Takashi Hasegawa, Atsushi Nishiwaki, Hideo Matsuzaki, Nobuhiro Sakitani, Sho Urata, Takaharu Morikawa
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Patent number: 11870035Abstract: A non-aqueous electrolyte secondary cell provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode has a positive electrode active material that contains composite oxide particles which include Ni, Co, Li, and at least one of Mn and Al, and in which the proportion of Ni in relation to the total number of moles of metal elements excluding Li is at least 80 mol %. In the composite oxide particles, the ratio (B/A) of the post-particle-compression-test BET specific surface area (B) with respect to the pre-particle-compression-test BET specific surface area (A) is 1.0-3.0. The non-aqueous electrolyte contains a non-aqueous solvent and a cyclic carboxylic anhydride such as diglycolic anhydride.Type: GrantFiled: July 19, 2018Date of Patent: January 9, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tomoki Tsuji, Yuanlong Zhong
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Patent number: 11866346Abstract: A composite oxide powder including a composition formula (1), wherein the ratio ?/? of a surface area value ? (m2/g) calculated by a BET one-point method to a surface area value ? (m2/g) calculated from a formula (2) is greater than 1.0 and equal to or less than 1.5 and the surface area value ? is equal to or less than 20 m2/g. ABO3-? (1) (wherein A is one or more types of elements (La, Sr, Sm, Ca and Ba), B is one or more types of elements (Fe, Co, Ni and Mn) and 0??<1); and surface area value ? (m2/g)=specific surface area value ?-surface area value ?(2) (the specific surface area value ? (m2/g) is a value in a total pore size range measured by a mercury intrusion method. The specific surface area value ? (m2/g) is a value in a range of pore sizes that are larger than a 50% cumulative particle size.Type: GrantFiled: August 7, 2020Date of Patent: January 9, 2024Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Kazumasa Ikari, Shintaro Ogawa, Toshihiko Ueyama
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Patent number: 11862770Abstract: An enhanced solid state battery cell is disclosed. The battery cell can include a first electrode, a second electrode, and a solid state electrolyte layer interposed between the first electrode and the second electrode. The battery cell can further include a resistive layer interposed between the first electrode and the second electrode. The resistive layer can be electrically conductive in order to regulate an internal current flow within the battery cell. The internal current flow can result from an internal short circuit formed between the first electrode and the second electrode. The internal short circuit can be formed from the solid state electrolyte layer being penetrated by metal dendrites formed at the first electrode and/or the second electrode.Type: GrantFiled: January 23, 2023Date of Patent: January 2, 2024Assignee: American Lithium Energy CorporationInventor: Jiang Fan
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Patent number: 11859304Abstract: The present disclosure generally relates to a method for electroplating (or electrodeposition) a transition metal oxide composition that may be used in gas sensors, biological cell sensors, supercapacitors, catalysts for fuel cells and metal air batteries, nano and optoelectronic devices, filtration devices, structural components, and energy storage devices. The method includes electrodepositing the electrochemically active transition metal oxide composition onto a working electrode in an electrodeposition bath containing a molten salt electrolyte and a transition metal ion source. The electrode structure can be used for various applications such as electrochemical energy storage devices including high power and high-energy primary or secondary batteries.Type: GrantFiled: November 7, 2022Date of Patent: January 2, 2024Assignee: Xerion Advanced Battery Corp.Inventors: Mehmet Nurullah Ates, John David Busbee, Chadd Timothy Kiggins, John Berkeley Cook
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Patent number: 11851733Abstract: The manufacturing method of a porous silicon material of the present disclosure includes a particle forming step of melting a raw material containing Al as a first element in an amount of 50% by mass or more and Si in an amount of 50% by mass or less to obtain a silicon alloy, a pore forming step of removing the first element from the silicon alloy to obtain a porous material, and a heat treatment step of heating the porous material to diffuse elements other than Si to a surface of the porous material.Type: GrantFiled: June 20, 2022Date of Patent: December 26, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Kawaura, Yasuhito Kondo, Ryo Suzuki, Hiroshi Nozaki, Jun Yoshida, Tetsuya Waseda, Mitsutoshi Otaki
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Patent number: 11855262Abstract: An electronic device includes a cell, a circuit board, and a cell protection unit. The circuit board is provided in the electronic device and configured to control the electronic device. The circuit board is electrically coupled to the cell, and the cell protection unit is provided on the circuit board. The cell protection unit is integrated with the circuit board, so as to facilitate heat dissipation of the cell, prolong the service life of the cell, speed up the production cycle of the cell, and reduce the production cost of the cell.Type: GrantFiled: January 3, 2023Date of Patent: December 26, 2023Assignee: DONGGUAN NVT TECHNOLOGY LIMITEDInventors: Liming Wang, Nini Chen, Guanghui Chen, Xuefeng Liu