Patents Examined by Jonathan G Leong
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Patent number: 11929498Abstract: A silicon-carbon complex comprising carbon-based particles and silicon-based particles, wherein the silicon-based particles are dispersed and positioned on surfaces of the carbon-based particles, the carbon-based particles have a specific surface area of 0.4 m2/g to 1.5 m2/g, and the silicon-based particles are doped with one or more elements selected from the group consisting of Mg, Li, Ca, and Al, and a negative electrode active material for lithium secondary battery comprising the same.Type: GrantFiled: October 26, 2018Date of Patent: March 12, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Su Min Lee, Eun Kyung Kim, Yong Ju Lee, Rae Hwan Jo, Dong Hyuk Kim, Se Mi Park
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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: 11916207Abstract: A battery cell having an electrode main body, in which a positive electrode and a negative electrode, each having an electrode mixture is coated on at least one surface of a metallic current collector, and a separation film interposed between the positive electrode and the negative electrode are wound together, a metal can, which accommodates the electrode main body together with an electrolyte solution; and a sealing tape attached to an exterior surface of the electrode main body so as to fix a distal end portion of the electrode main body, the sealing tape including a heat conductive material to provide heat conduction between the electrode main body and the metal can is provided.Type: GrantFiled: October 10, 2018Date of Patent: February 27, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Wook Hee Jang, Sang Sok Jung, Sangjoon Park, Roun Kim, Gilyoung Lee
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Patent number: 11909061Abstract: Present embodiments include a series of lithium battery modules having a plurality of electrochemical cells having different electrical characteristics such as voltages and/or capacities. The battery modules are each constructed using components, architectures, production methods, among other things, in common with each other. The lithium ion battery modules may include a first battery module type having a first capacity and a first voltage, a second battery module type having a second capacity and a second voltage, and, in some embodiments, additional battery module types (e.g., a third battery module type having a third capacity and a third voltage) having different voltages and/or capacities. The lithium ion battery modules may all have the same footprint.Type: GrantFiled: November 4, 2020Date of Patent: February 20, 2024Assignee: CPS Technology Holdings LLCInventors: Richard M. DeKeuster, Robert J. Mack, Stephen D. Cash
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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: 11876243Abstract: A battery module includes: a plurality of cell stacks, each of the cell stacks including: a plurality of unit cells arranged in a first direction; and an insulation member around the plurality of unit cells; and a module housing, in which a plurality of receiving parts are provided, ones of the cell stacks from among the plurality of cell stacks being located in a receiving part from among the plurality of receiving parts, and each of the receiving parts includes a fixing wall, the fixing wall being around the cell stack received therein and being in contact with the cell stack, and the module housing includes end walls at respective sides of each of the receiving parts in the first direction to engage end surfaces of respective sides of the cell stack received in the respective receiving part in the first direction.Type: GrantFiled: October 17, 2019Date of Patent: January 16, 2024Assignee: Samsung SDI Co., Ltd.Inventors: Jangwoong Bae, Daeyeop Park, Sungyong Kim, Jaeho Kim, Soodeok Moon, Junhyung Lee, Dooyong Lim, Jisoon Lim, Eungi Heo
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Patent number: 11817585Abstract: A positive electrode includes: a current collector; and a positive electrode active material layer disposed on the current collector, wherein the positive electrode active material layer includes a positive electrode active material, a conductive material, and a binder, the conductive material contains at least one of carbon black or a carbon nanotube and the binder contains polyvinylidene fluoride to which a functional group is bonded, and the functional group has a carboxyl group, and in the polyvinylidene fluoride to which the functional group is bonded.Type: GrantFiled: February 22, 2019Date of Patent: November 14, 2023Inventors: Jun Muk Lim, Joo Yul Baek, Sang Hoon Choy
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Patent number: 11811092Abstract: Disclosed are a ceramic and polymer compositely coated lithium ion separator and a preparation method therefor. The ceramic and polymer compositely coated lithium ion separator comprises a polyolefin porous membrane, a ceramic coating coated onto one or both sides of a membrane surface, and a polymer coating coated onto a ceramic surface or the membrane surface. The composite separator prepared in the present disclosure significantly enhances heat resistance of the separator and bonding strength thereof with positive and negative pole pieces, improves the wettability of an electrolyte, can effectively prevent an internal short circuit due to layer dislocation between the separator and the electrodes, and also improves hardness and safety performance of the battery.Type: GrantFiled: December 29, 2017Date of Patent: November 7, 2023Assignee: Shenzhen Senior Technology Material Co., Ltd.Inventors: Peilong Liao, Xiang Ping, Yongqiang Yao, Liuhao Zhang, Liang Chen
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Patent number: 11804604Abstract: The present application relates to the field of battery, in particular to a positive electrode piece, an electrochemical device and an apparatus. The positive electrode piece of the present application includes a current collector and an electrode active material layer arranged on at least one surface of the current collector, where the current collector includes a support layer and a conductive layer arranged on at least one surface of the support layer. The thickness D2 of one side of the conductive layer D2 satisfies 30 nm?D2?3 ?m, the material of the conductive layer is aluminum or aluminum alloy, and the density of the conductive layer is 2.5 g/cm3 to 2.8 g/cm3, and a primer layer containing a conductive material and a binder is also arranged between the current collector and the electrode active material layer.Type: GrantFiled: December 31, 2020Date of Patent: October 31, 2023Assignee: Contemporary Amperex Technology Co., LimitedInventors: Jing Li, Qingrui Xue, Wei Li, Zige Zhang, Yang Zhang, Xianwei Yang
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Patent number: 11791456Abstract: A negative electrode having a carbon-based thin film formed on at least one surface of a lithium metal layer, and a lithium secondary battery including the same. A carbon-based thin film formed on at least one surface of a lithium metal layer blocks side reactions caused by direct contact between the lithium metal layer and an electrolyte as well as increasing a specific surface area of a negative electrode, and thereby suppresses lithium dendrite formation, and by obtaining current density distribution uniformly, enhances cycle performance, reduces an overvoltage to improve electrochemical performance of a lithium secondary battery.Type: GrantFiled: March 8, 2018Date of Patent: October 17, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Heewon Choi, Eun Kyung Kim, Ki Hwan Kim, Sangwook Woo, Jeong Woo Shon, Ohbyong Chae
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Patent number: 11777177Abstract: Provided is an assembled battery in which a large number of flat batteries can be stacked easily. An assembled battery 1 includes stacked multiple flat batteries A, B, and C in the shape of an N-sided polygon (N is an integer of 3 or more). Each of the multiple flat batteries A, B, and C in the shape of the N-sided polygon has a positive-electrode terminal 21a and a negative-electrode terminal 61a that extend in different directions having 360°/N in between, and the multiple flat batteries A, B, and C are electrically connected in series. The assembled battery 1 also includes multiple N-sided polygonal separating films 71 and 72 disposed between each pair of adjacent ones of the stacked multiple flat batteries A, B, and C to insulate the flat batteries from one another.Type: GrantFiled: February 14, 2019Date of Patent: October 3, 2023Assignee: Nippon Telegraph and Telephone CorporationInventors: Masaya Nohara, Mikayo Iwata, Masahiko Hayashi, Takeshi Komatsu
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Patent number: 11136647Abstract: A method for generating alkali metal in a zero oxidation state includes reacting an alkali metal compound having a —S-M substituent, where M is an alkali metal and S is sulfur, with gold in a zero oxidation state to release the alkali metal in the zero oxidation state. For example, an alkali metal alkylthiolate can be reacted with a gold in a zero oxidation state to release the alkali metal in the zero oxidation state. As another example, an alkali metal sulfide can be reacted with gold in a zero oxidation state to release the alkali metal in the zero oxidation state. The alkali metal may be used in various applications including vapor cells, magnetometers, and magnetic field measurement systems.Type: GrantFiled: May 7, 2019Date of Patent: October 5, 2021Assignee: HI LLCInventors: Sukanta Bhattacharyya, Daniel Sobek
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Patent number: 10854908Abstract: Provided are an electrode structure and a lithium battery including the same. The electrode structure may include a positive electrode, a negative electrode, and a first separator disposed between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode have active material layers having different loading levels. A lithium battery may have improved high rate characteristics and lifespan characteristics by including the electrode structure.Type: GrantFiled: March 31, 2015Date of Patent: December 1, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Bo-Hyun Kim, Jong-Ki Lee, Hong-Jeong Kim, Yu-Jin Han
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Patent number: 10840504Abstract: In an aspect, a redox flow battery comprises a catholyte and an anolyte; wherein at least one of said catholyte and said anolyte is a metal-coordination complex, said metal-coordination complex comprising: (i) a metal; (ii) one or more first ligands coordinated with said metal atom, wherein each of said first ligands is independently a Lewis basic ligand; and one or more second ligands associated with said one or more first ligands, wherein each of said second ligands is independently a Lewis acid ligand; and a nonaqueous solvent, wherein said catholyte, said anolyte or both are dissolved in said nonaqueous solvent. One or more first ligands may be provided in a primary coordination sphere of said metal-coordination complex and one or more second ligands may be provided in a secondary coordination sphere of said metal-coordination complex.Type: GrantFiled: February 23, 2018Date of Patent: November 17, 2020Assignee: California Institute of TechnologyInventors: Simon C. Jones, Emmanuelle Despagnet-Ayoub, Brendon McNicholas, Harry B. Gray, Robert H. Grubbs, Danh Ngo
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Patent number: 10833329Abstract: Provided are a nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle that includes at least two primary particle structures, the primary particle structures each including a porous inner portion and an outer portion having a radially arranged structure, and the secondary particle including at least two radial centers.Type: GrantFiled: December 1, 2017Date of Patent: November 10, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Jinhwa Kim, Hyunbeom Kim, Jongmin Kim, Wooyoung Yang, Donggyu Chang, Jangsuk Hyun
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Patent number: 10826142Abstract: A fuel cell having a cathode, cathode chamber, anode and anode chamber. The anode chamber is at least partially defined by an anode current collector. The cathode chamber is at least partially defined by the cathode. The anode chamber includes one or a plurality of anode flow channels for flowing an electrolyte in a downstream direction. The anode current collector may include a plurality of particle collectors projecting into the anode chamber to collect particles suspended in the electrolyte.Type: GrantFiled: March 16, 2018Date of Patent: November 3, 2020Assignee: ZINC8 ENERGY SOLUTIONS INC.Inventors: Stuart Smedley, Wolf Tivy, Boguslaw Wozniczka, David Robert Bruce
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Patent number: 10826029Abstract: An energy storage device includes: an electrode assembly; a case accommodating the electrode assembly; a lid plate structure including a lid plate of the case, a current collector electrically connected to a tab provided at the electrode assembly, and an insulating member disposed between the lid plate and the current collector; and a first spacer disposed between an end provided with the tab of the electrode assembly and the lid plate and having a locked portion locked to part of the lid structure.Type: GrantFiled: May 10, 2016Date of Patent: November 3, 2020Assignees: GS YUASA INTERNATIONAL LTD., ROBERT BOSCH GMBHInventors: Masumi Ogawa, Kenji Kawate
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Patent number: 10826135Abstract: A battery pack includes a first unit battery, a second unit battery, and a spacer. The first unit battery includes a wound electrode body and a casing that accommodates an electrolyte solution. The spacer includes: a primary surface that faces the first unit battery; and plural projections, each of which is projected from the primary surface. The plural projections include: a first projection that abuts the casing in a state where the casing is not expanded; and a second projection, a height of which is lower than a height of the first projection.Type: GrantFiled: October 18, 2018Date of Patent: November 3, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kengo Iwakura, Isao Takahashi, Junta Katayama, Koji Umemura, Yuki Okamoto
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Patent number: 10826129Abstract: The present invention relates to a sheet-type electrode for a secondary battery, a method for manufacturing the same, a secondary battery comprising the same, and a cable-type secondary battery, the electrode comprising: a sheet-type electrode stacked body comprising a collector, an electrode active material formed on a surface of the collector, and a porous first support layer formed on the electrode active material; and a sealing layer formed so as to surround the entire side surface of the electrode stacked body.Type: GrantFiled: October 30, 2015Date of Patent: November 3, 2020Assignee: LG Chem, Ltd.Inventors: Yo-Han Kwon, In-Sung Uhm, Je-Young Kim, Suk-In Noh
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Patent number: 10818904Abstract: A through hole is provided in an insulating member. A bus bar is provided in the insulating member and constructed to electrically connect adjacent modules to each other when the insulating member is attached to a fixing member. A fastening bolt fastens the insulating member to the fixing member by being coupled to a nut through the through hole. A nut is provided in the through hole, and the through hole is provided to extend toward the fixing member when the insulating member is attached to the fixing member.Type: GrantFiled: June 18, 2018Date of Patent: October 27, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Atsushi Yamanaka