Patents Examined by Tracy M. Dove
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Patent number: 11769869Abstract: A method uses an apparatus for fabricating a zinc plated copper electrode for a zinc anode battery. The method comprises the steps of: placing a zinc sheet and a copper sheet in a container of the apparatus; applying a first positive potential to the copper sheet; applying a first negative potential to the zinc sheet; passing a first predetermined current density; applying a second positive potential to the zinc sheet; applying a second negative potential to the copper sheet; and passing a second predetermined current density.Type: GrantFiled: April 19, 2023Date of Patent: September 26, 2023Assignee: Golden Gate Battery LLCInventors: Joy Vadakkan Thomas, Daiphi Davis, Leya Mary Anto, Jessphin Joy, Saroj Kumar Sahu
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Patent number: 11735714Abstract: A negative electrode slurry composition including (1) clay particles having, a plate-type structure and an average particle diameter (D50) of 10 nm to 2 ?m, (2) carboxymethylcellulose (CMC), (3) a negative electrode active material, and (4) an aqueous solvent, wherein a weight ratio of the carboxymethylcellulose and the clay particles is 9.5:0.5 to 4:6. The negative electrode slurry composition is capable of solving problems due to the deterioration of storage stability and dispersibility of solids in a negative electrode slurry composition having a high solid content.Type: GrantFiled: November 6, 2018Date of Patent: August 22, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Jong Won Lee, Houng Sik Yoo, Hyeon Choi
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Patent number: 11705556Abstract: A positive electrode current collector and a positive electrode plate, a battery, a battery module, a battery pack, and an apparatus including the positive electrode current collector are provided. In some embodiments, a positive electrode current collector is provided, including an organic support layer and an aluminum-based conductive layer disposed on at least one surface of the organic support layer, where the aluminum-based conductive layer contains Al and at least one modifying element selected from O, N, F, B, S, and P, an XPS spectrogram of the aluminum-based conductive layer with a surface passivation layer removed through etching has at least a first peak falling in a range of 70 eV to 73.5 eV and a second peak falling in a range of 73.5 eV to 78 eV, and a ratio x of peak intensity of the second peak to that of the first peak satisfies 0<x?3.0.Type: GrantFiled: November 16, 2022Date of Patent: July 18, 2023Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Xin Liu, Qisen Huang, Mingling Li, Xianghui Liu, Cheng Li, Jia Peng, Chengdu Liang
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Patent number: 11699785Abstract: Disclosed herein is a composite electrode comprising a charge-conducting material, a charge-providing material bound to the charge-conducting material, and a plurality of single-walled carbon nanotubes bound to a surface of the charge-providing material. High-capacity electroactive materials that assure high performance are a prerequisite for ubiquitous adoption of technologies that require high energy/power density lithium (Li)-ion batteries, such as smart Internet of Things (IoT) devices and electric vehicles (EVs). Improved electrode performance and lifetimes are desirable. The disclosed electrode can have a Coulombic efficiency of 99% or greater, and a stable capacity retention after 100 cycles or more. Also disclosed herein are methods of making a composite electrode.Type: GrantFiled: March 6, 2019Date of Patent: July 11, 2023Assignee: Georgia Tech Research CorporationInventors: Yo Han Kwon, Elsa Reichmanis
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Patent number: 11695112Abstract: The present application provides a negative electrode active material, a process for preparing the same, and a secondary battery, a battery module, a battery pack and an apparatus related the same. The negative electrode active material comprises a core material and a polymer-modified coating layer on at least a part of a surface of the core material, the core material is one or more of a silicon-based negative electrode material and a tin-based negative electrode material, the polymer-modified coating layer comprises sulfur element and carbon element, the sulfur element has a mass percentage of from 0.2% to 4% in the negative electrode active material, the carbon element has a mass percentage of from 0.5% to 4% in the negative electrode active material, and the polymer-modified coating layer comprises a —S—C— bond.Type: GrantFiled: December 17, 2021Date of Patent: July 4, 2023Assignee: Contemporary Amperex Technology Co., LimitedInventors: Chengdu Liang, Yuzhen Zhao, Yingjie Guan, Yan Wen, Qisen Huang
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Patent number: 11652202Abstract: The present invention provides a positive electrode for non-aqueous electrolyte secondary battery, having a novel overcharge protective function. The positive electrode for non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode active material layer including a plurality of positive electrode active material particles, wherein the positive electrode active material layer comprises: a carbonaceous coating film formed on a surface of each of the positive electrode active material particles; and 0% by weight or more and 20% by weight or less of a conductive auxiliary agent disposed between the plurality of positive electrode active material particles, and at least one of the carbonaceous coating film and the conductive auxiliary agent is graphitizable carbon.Type: GrantFiled: May 12, 2016Date of Patent: May 16, 2023Assignee: ELIIY POWER CO., LTDInventors: Tomitaro Hara, Takao Fukunaga, Yusuke Kuzushima
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Patent number: 11646439Abstract: A battery (2) comprising a pressure sensitive adhesive sheet (1) and an electrolyte solution, wherein: the pressure sensitive adhesive sheet is provided at a site in the battery in which there is a possibility of contact with the electrolyte solution; the pressure sensitive adhesive sheet comprises a base material (11) and a pressure sensitive adhesive layer (13) laminated at one side of the base material; and the pressure sensitive adhesive layer (13) is formed of a pressure sensitive adhesive composition comprising: a (meth)acrylic ester polymer having a main chain containing (meth)acrylic alkyl ester monomer units having a carbon number of an alkyl group of 6 or more and 20 or less, and carboxy group-containing monomer units, wherein the (meth)acrylic alkyl ester monomer units having a carbon number of an alkyl group of 6 or more and 20 or less contain 2-ethylhexyl (meth)acrylates and (meth)acrylic alkyl ester monomer units having a carbon number of an alkyl group of 10 or more and 20 or less.Type: GrantFiled: September 24, 2020Date of Patent: May 9, 2023Assignee: LINTEC CORPORATIONInventors: Takeshi Ansai, Yuichi Kurata, Kousuke Takada, Tetsuya Arazoe
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Patent number: 11646472Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.Type: GrantFiled: January 5, 2021Date of Patent: May 9, 2023Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
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Patent number: 11631863Abstract: A fuel cell catalyst material includes metal catalyst particles formed of a metal material and a carbon-based coating composition at least partially coating at least some of the metal catalyst particles. The carbon-based coating composition includes a carbon network. The carbon-based coating composition is doped with a dopant. The carbon-based coating composition includes a number of defects formed by one or more vacated carbon atoms in the carbon network.Type: GrantFiled: March 27, 2020Date of Patent: April 18, 2023Assignee: Robert Bosch GmbHInventors: Jonathan Mailoa, Georgy Samsonidze, Soo Kim, Mordechai Kornbluth
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Patent number: 11631876Abstract: The present disclosure is directed to compositions and structures of supported metal catalysts for use in applications such as direct methanol fuel cells. Generally, implementations include supported metal catalysts that include Pt active sites that have been modified by addition or co-localization of a second metal such as Cu, Co, Ni, and/or other base metals to lower the inhibiting effect of strongly-adsorbed CO, an intermediate of methanol oxidation. An example aspect of the present disclosure includes catalyst compositions where the exterior metal sites in the supported catalyst include at least two metals: Pt and a competitive binder (e.g., a second metal).Type: GrantFiled: January 22, 2020Date of Patent: April 18, 2023Assignee: University of South CarolinaInventors: John R. Monnier, Gregory L. Tate, Wen Xiong, Benjamin H. Meekins
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Patent number: 11628464Abstract: Provided is an inkjet application device (1) including a distribution flow path for the liquid material, the distribution flow path including a first flow channel (4) configured to supply the liquid material pumped with a pump (2) to a supply tank (3) and a second flow channel (6) configured to supply the liquid material in the supply tank (3) to the inkjet head (5), wherein the supply tank (3) accommodates a filter (40), which is configured to allow the particles in the liquid material to pass therethrough without allowing air bubbles in the liquid material, which are generated by the pumping of the pump (2), to pass therethrough.Type: GrantFiled: December 25, 2017Date of Patent: April 18, 2023Assignee: KABUSHIKI KAISHA ISHII HYOKIInventors: Seiji Masunari, Mikio Kuwada, Yoshinori Murakami, Tomoko Hosokawa, Takahiro Ikegami, Hideyuki Nakatani, Mamoru Baba
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Patent number: 11631906Abstract: A protection circuit board includes a printed circuit board having a circuit is printed on a board formed from an electrically insulating material and two or more connection components disposed on at least one surface of the printed circuit board and are coupled to an electrode terminal of a secondary battery. Additionally, at least one inspection slot having a shape recessed within the connection component and extending to a portion that the electrode terminal of the secondary battery is coupled thereto and is defined in the connection component. Also, an inspection device and inspection method for inspecting a welded state between a protection circuit board and an electrode terminal among a pair of electrode terminals of a battery pack are provided.Type: GrantFiled: October 30, 2020Date of Patent: April 18, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Jin Oh Yang, Young Su Son, Suk Jin Song, Jae Young Jang
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Positive electrode current collector, positive electrode piece, electrochemical device and apparatus
Patent number: 11621425Abstract: A positive electrode current collector, a positive electrode piece, an electrochemical device and an apparatus, where the positive electrode current collector includes a support layer and a conductive layer provided on the support layer, where a material of the conductive layer is aluminum or aluminum alloy, and a thickness D1 of the conductive layer is 300 nm?D1?2 ?m; an elongation at break B of the support layer is 10,000%?B?12%, and a volume resistivity of the support layer is greater than or equal to 1.0×10?5 ?·m; when a tensile strain of the positive electrode current collector is 2%, a square resistance growth rate T1 of the conductive layer is T1?10%. The positive electrode current collector provided in the present application can simultaneously take into account both high safety performance and electrical performance.Type: GrantFiled: December 23, 2020Date of Patent: April 4, 2023Assignee: Contemporary Amperex Technology Co., LimitedInventors: Chengdu Liang, Qisen Huang, Shiwen Wang -
Patent number: 11616218Abstract: A method of manufacturing a free-standing electrode film includes preparing a mixture including an electrode active material, a conductive material, and a binder, heating the mixture to 70° C. or higher, subjecting the mixture to a shear force, and, after the mixture has been subjected to the shear force, pressing the mixture into a free-standing film. The method may further include adding a solvent to the mixture. A resulting free-standing electrode film may include an amount of binder less than 4% by weight.Type: GrantFiled: May 14, 2020Date of Patent: March 28, 2023Assignee: LICAP TECHNOLOGIES, INC.Inventors: Linda Zhong, Kathleen Qiu, Martin Zea, Erika Shaw
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Patent number: 11600810Abstract: A method for preparing an ultrathin Li complex includes the steps of preparing an organic transition layer on a substrate in advance, and contacting the substrate having transition layer with molten Li in argon atmosphere with H2O?0.1 ppm and O2?0.1 ppm. The molten Li spreads rapidly on the surface of the substrate to form a lithium thin layer. The ultrathin Li layer stores lithium on the current collector beforehand. It can be used as a safe lithium anode to inhibit dendrites.Type: GrantFiled: December 21, 2017Date of Patent: March 7, 2023Assignee: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCESInventors: Yuguo Guo, Shuhua Wang, Wei Dong, Yaxia Yin, Chunru Wang
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Patent number: 11600868Abstract: Provided is a method for producing a nonaqueous electrolyte secondary battery, and a production system therefor, that allow forming a good SEI film in a shorter time. The production method includes an assembly step, an initial charging step and a high-temperature aging step.Type: GrantFiled: June 17, 2019Date of Patent: March 7, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takashi Miura
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Patent number: 11594784Abstract: An electrode including an integrated fibrous separator may include an active material layer layered onto a current collector substrate, and an integrated separator layer comprising a mixture of ceramic particles and fibers layered onto the active material layer. The fibers may be oriented substantially horizontally, and may be configured to increase a lateral strength of the electrode. In some examples, the electrode includes two or more active material layers disposed between the integrated separator layer and the current collector substrate. In some examples, the electrode includes an interlocking region disposed between the active material layer and the integrated separator layer.Type: GrantFiled: October 15, 2021Date of Patent: February 28, 2023Assignee: EnPower, Inc.Inventors: Raymundo Roig, Adrian Yao
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Patent number: 11594719Abstract: A lithium electrode and a lithium secondary battery including the same. The lithium electrode has a surface oxide layer with a controlled thickness and surface roughness. The lithium electrode may be used as a negative electrode of a lithium secondary battery, for example, a lithium-sulfur secondary battery. A lithium-sulfur battery including the lithium electrode has an enhanced lifetime due to suppression of side reactions with polysulfide.Type: GrantFiled: February 8, 2018Date of Patent: February 28, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Taek Gyoung Kim, Jeehyun Ahn, Doo Kyung Yang, Eunkyung Cho, Cholong Lee
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Patent number: 11594720Abstract: A positive electrode for a secondary battery includes a positive electrode current collector and a positive electrode active material layer that contains a positive electrode active material particle and that is disposed on the surface of the positive electrode current collector. The positive electrode active material particle includes a positive electrode active material particle, a first coating that contains oxide X of metal element M1 and that is attached to the surface of the positive electrode active material particle, and a second coating having lithium-ion permeability that is attached to the surface of the first coating. The second coating contains oxide Y represented by LixM2Oy (0.5?x<4, 1?y<6), M2 being at least one selected from a group consisting of B, Al, Si, P, S, Ti, V, Zr, Nb, Ta, and La.Type: GrantFiled: January 7, 2019Date of Patent: February 28, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroshi Kawada, Atsushi Fukui
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Lithium-sulfur battery cathode, method for making the same and lithium-sulfur battery using the same
Patent number: 11581524Abstract: The present disclosure relates to a lithium-sulfur battery cathode. The lithium-sulfur battery cathode comprises a carbon nanotube sponge and a plurality of sulfur nanoparticles. Wherein the carbon nanotube sponge comprises a plurality of micropores. The plurality of sulfur nanoparticles are uniformly distributed in the plurality of micropores. The present disclosure also relates a method for making the lithium-sulfur battery cathode and a lithium-sulfur battery using the lithium-sulfur battery cathode.Type: GrantFiled: November 20, 2019Date of Patent: February 14, 2023Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Ling-Jia Yan, Jia-Ping Wang, Kai-Li Jiang, Shou-Shan Fan