Patents Examined by Muhammad S Siddiquee
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Patent number: 10826122Abstract: The present disclosure provides a lithium-ion battery, which comprises: a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material and an electrolyte. The positive electrode active material comprises: a core and a coating layer coating a surface of the core and comprising boron. The electrolyte comprises a lithium salt, a non-aqueous organic solvent and an electrolyte additive, the electrolyte additive comprises an organic titanium compound. The coating layer of the positive electrode active material of the lithium-ion battery according to the present disclosure contains boron, and the electrolyte of the lithium-ion battery contains the organic titanium compound, under the combined effect of the coating layer containing boron and the electrolyte containing the organic titanium compound, the lithium-ion battery has excellent high temperature cycle performance and excellent high temperature storage performance.Type: GrantFiled: May 16, 2018Date of Patent: November 3, 2020Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Yingjie Zhan, Jian Yan, Songjun Shi, Lan Xie, Wenhao Liu
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Patent number: 10818889Abstract: The present disclosure provides a battery cap assembly, a secondary battery and a battery module. The battery cap assembly comprises: a cap plate, including a second terminal hole; a first electrode terminal, at least a part of which protruding above the cap plate; a second electrode terminal, including a second protruding portion protruding above the cap plate and a second base portion connected with the second protruding portion. The first electrode terminal is provided with a protrusion used for welding with a first connecting piece; the second protruding portion is used for welding with a second connecting piece to form a welding portion, and a projection of the welding portion in an up-down direction is positioned in a cross-section of the second base portion. The secondary battery comprises a case, an electrode assembly and the battery cap assembly. The battery module comprises the first connecting piece and the secondary batteries.Type: GrantFiled: May 16, 2018Date of Patent: October 27, 2020Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Zhijun Guo, Jie Zhang, Taosheng Zhu, Peng Wang, Guowei Li
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Patent number: 10804529Abstract: An electrode material including a carbonaceous-coated electrode active material having primary particles of an electrode active material and secondary particles that are aggregates of the primary particles, and a carbonaceous film that coats the primary particles of the electrode active material and the secondary particles that are the aggregates of the primary particles, in which a proportion of a volume of micropores having a micropore diameter of 50 nm or less in a volume of micropores having a micropore diameter of 300 nm or less, which is obtained using a nitrogen adsorption method, is 40% or more.Type: GrantFiled: February 22, 2019Date of Patent: October 13, 2020Assignee: SUMITOMO OSAKA CEMENT CO., LTD.Inventors: Kouji Oono, Satoru Oshitari, Masataka Oyama
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Patent number: 10797353Abstract: A method of manufacturing an electrochemical cell may comprise exposing a surface of a metal substrate to a chalcogen in gas phase such that a metal chalcogenide layer forms on the surface of the metal substrate. A lithium metal foil may be laminated onto the metal chalcogenide layer on the surface of the metal substrate such that a surface of the lithium metal foil physically and chemically bonds to the metal chalcogenide layer on the surface of the metal substrate.Type: GrantFiled: January 4, 2018Date of Patent: October 6, 2020Assignee: GM Global Technology Operations LLCInventors: Keegan Adair, Fang Dai, Mei Cai
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Patent number: 10797301Abstract: In a method of manufacturing an electrochemical cell, a porous or non-porous electrically conductive metal substrate may be provided. A conformal metal chalcogenide layer may be formed on a surface of the metal substrate. The metal substrate with the conformal metal chalcogenide layer may be immersed in a nonaqueous liquid electrolyte solution comprising a lithium salt dissolved in a polar aprotic organic solvent. An electrical potential may be established between the metal substrate and a counter electrode immersed in the nonaqueous liquid electrolyte solution such that lithium ions in the electrolyte solution are reduced to metallic lithium and deposited on the surface of the metal substrate over the metal chalcogenide layer to form a conformal lithium metal layer on the surface of the metal substrate over the metal chalcogenide layer.Type: GrantFiled: September 14, 2018Date of Patent: October 6, 2020Assignee: GM Global Technology Operations LLCInventors: Fang Dai, Shuru Chen, Meinan He, Mei Cai
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Patent number: 10784532Abstract: Chemical additives are disclosed to increase solubility of salts in liquefied gas electrolytes.Type: GrantFiled: October 28, 2019Date of Patent: September 22, 2020Assignees: South 8 Technologies, Inc., The Regents of the University of CaliforniaInventors: Cyrus Sam Rustomji, Yangyuchen Yang, Daniel Davies, Jungwoo Lee, Ying Shirley Meng
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Patent number: 10784520Abstract: A battery cell housing and control system enables the use of liquid battery power systems in various applications, including downhole environments. The cell housing includes a plurality of conductive terminals spaced there-around to provide conductivity between the electrochemical solution and the load. Sensors provide orientation data to the control system to thereby determine which terminals should be activated to provide power to a load.Type: GrantFiled: December 18, 2018Date of Patent: September 22, 2020Assignee: Halliburton Energy Services, Inc.Inventors: Rex Dael Navarro, Philbert Pasco Perez, Wihaga Satya Khresna
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Patent number: 10784477Abstract: A rechargeable battery with elastically compliant housing includes a housing and at least one battery cell. The housing includes a pair of substantially rigid end plates and an elastically compliant structure joining the end plates so that the end plates are oriented in respective planes that are substantially parallel to each other and define a gap there between. Each battery cell is contained in the housing in the gap between the end plates and includes an anode, a cathode, and a separator between the anode and the cathode. The elastically compliant structure joins the end plates and includes an elastic component that exhibits elastic expansion greater than 3% along an axis orthogonal to the planes in which the end plates are oriented.Type: GrantFiled: November 25, 2017Date of Patent: September 22, 2020Assignee: Viking Power Systems Pte. Ltd.Inventors: Christopher Fischer, Thomas Gillooly, David Eaglesham, Robert Ellis Doe
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Patent number: 10770696Abstract: Provided are a top cover assembly and a secondary battery containing the same. The top cover assembly includes a first electrode terminal, a conduction member, a second electrode terminal, and a top cover plate insulated from the first electrode terminal and electrically connected to the second electrode terminal, the secondary battery further comprises a contact plate which is attached to the top cover plate, the conduction member is insulated from the top cover plate and comprises an electrode terminal connection portion, a first fuse member, a contact plate connection portion, and a connection layer, the first fuse member has a melting point lower than the electrode terminal connection portion and the contact plate connection portion; the first fuse member is connected to the electrode terminal connection portion via the connection layer, and/or the first fuse member is connected to the contact plate connection portion via the connection layer.Type: GrantFiled: April 11, 2018Date of Patent: September 8, 2020Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Baisong Chen, Peng Wang, Kai Wu, Zhiyu Wang, Xiaobo Chen, Taosheng Zhu
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Patent number: 10770712Abstract: A battery cell includes an electrode assembly and a battery case. The electrode assembly includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The battery case includes an upper case and a lower case, at least one of the upper case and the lower case being provided with a receiving part, in which the electrode assembly is mounted. One end of each of electrode tabs extending from electrode plates of the electrode assembly is coupled to a corresponding end of an electrode lead, which protrudes outward from the battery case. The electrode lead is provided with at least one notch part configured to rupture in response to expansion deformation of the battery case when the pressure in the battery cell increases to achieve the electrical cutoff of the battery.Type: GrantFiled: January 4, 2018Date of Patent: September 8, 2020Assignee: LG Chem, Ltd.Inventors: Sang Hun Kim, Yong Kim, Min Hyeong Kang, Cho Long Kim, Hyung Kyun Yu, Ji Hoon Lee, Yong Su Choi, Soo Ji Hwang
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Patent number: 10770711Abstract: Disclosed herein is a cap assembly loaded on an open upper end of a metal battery can of a cylindrical secondary battery. The cap assembly includes a top cap located at the uppermost end of the cap assembly, a safety vent located under the top cap and electrically connected to the top cap via a safety vent for discharging gas, a current interrupt device configured such that a portion of the upper surface of the current interrupt device is connected to the safety vent and a portion of the lower surface of the current interrupt device is connected to an electrode lead of an electrode assembly, and a current interrupt device (CID) gasket coupled to the current interrupt device so as to wrap an outer circumferential part of the current interrupt device in order to secure the electrical insulation property of the current interrupt device.Type: GrantFiled: January 3, 2018Date of Patent: September 8, 2020Assignee: LG Chem, Ltd.Inventors: U Jin Yoon, Kwan Hee Lee, Duk Hyun Ryu, Seung Won Park
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Patent number: 10756364Abstract: There is provided a fuel cell system comprising a fuel cell including an electrolyte membrane, an anode and a cathode; and a controller configured to control a fuel gas supply part and an oxidizing gas supply part to supply amounts of a fuel gas and an oxidizing gas corresponding to a required power, to the fuel cell. During an intermittent operation that has the required power equal to or lower than a predetermined value and stops power generation in the fuel cell, the controller estimates a crossover amount that is an amount of the fuel gas moved from the anode to the cathode through the electrolyte membrane. The controller also calculates a supply amount of the oxidizing gas that is an amount of the oxidizing gas to be supplied to the fuel cell, based on the estimated crossover amount and controls the oxidizing gas supply part to supply the calculated supply amount of the oxidizing gas to the fuel cell.Type: GrantFiled: May 9, 2018Date of Patent: August 25, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yusuke Miyamoto, Tomotaka Ishikawa, Atsuo Iio
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Patent number: 10741862Abstract: A device for manufacturing a fuel cell component is provided. The device includes a movement device configured to load a gas diffusion layer from a magazine when the gas diffusion layer is loaded to an inlet of a conveyor and unload the gas diffusion layer from an outlet side of the conveyor. An adhesive layer forming device that is disposed over the conveyor forms an adhesive layer in an edge region of the gas diffusion layer. A drying device is configured to dry the adhesive layer formed in the gas diffusion layer. An inspection vision is configured to detect an image of the gas diffusion layer that the adhesive layer is formed. Additionally, a controller operates the movement device, the adhesive layer forming device, and the drying device and configured to use the image to determine a shape of the adhesive layer formed in the gas diffusion layer.Type: GrantFiled: April 9, 2019Date of Patent: August 11, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Young Gun Kim, Sun Ho Lee
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Patent number: 10727509Abstract: A method for repairing a fuel cell stack having a plurality of individual cells involves the steps of: a) identifying at least one degraded individual cell in the fuel cell stack; and b) deactivating the at least one degraded individual cell.Type: GrantFiled: June 1, 2018Date of Patent: July 28, 2020Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Stefan Kreitmeier, Stefan Haase
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Patent number: 10727466Abstract: In a secondary battery including a separator, the improvement includes a coating layer that is disposed on the separator and that comprises a polyethyleneimine-attached carbonaceous material The secondary battery may include an adhesive buffer layer provided between the separator and the coating layer which imparts adhesion force between the separator and the coating layer. The carbonaceous material adsorbs lithium polysulfides (LiPS) in use to inhibit a shuttling reaction between the anode and the cathode, caused by the dissolution of lithium polysulfides in the electrolyte, and increases recyclability of the lithium polysulfides, resulting in improvement of life characteristics and rate characteristics of the secondary battery.Type: GrantFiled: December 19, 2017Date of Patent: July 28, 2020Assignee: Korea Institute of Science and TechnologyInventors: Won Il Cho, Mun Sek Kim, In Wook Nah, Young Rok Lim, Sun Min Park, In Hwan Oh
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Patent number: 10727454Abstract: A battery includes a case having a feedthrough port, a feedthrough assembly disposed in the feedthrough port, and a cell stack disposed within the case. The feedthrough port includes an inner conductor and an insulator core separating the inner conductor from the case. The cell stack includes an anode, a cathode, and a separator insulating the anode from the cathode, wherein the anode and cathode are offset from one another. An insulating boot surrounding the cell stack insulates the cell stack from the case. The insulating boot has an opening configured to receive therein the feedthrough assembly, which may include overmolded insulation. The interior surfaces and interior walls of the battery case may be thermal spray-coated with a dielectric material to prevent lithium dendrite formation between cathode and anode surfaces.Type: GrantFiled: November 16, 2017Date of Patent: July 28, 2020Assignee: Pacesetter, Inc.Inventors: Russell Bruch, Joseph Beauvais, Jeffrey Armstrong, Del Charles Brooks, III, Christopher Hallmark, John Duggan
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Patent number: 10714775Abstract: A fuel cell system includes: a low-frequency superimposition section superimposing a the low-frequency signal on a fuel cell; and an impedance computation section configured to compute low-frequency impedance of the fuel cell at a time when the low-frequency superimposition section superimposes the low-frequency signal on the fuel cell. The fuel cell system includes: a diagnosing section diagnosing a degree of dryness inside the fuel cell on the basis of low-frequency impedance; and an oxidant gas amount adjustment section configured to adjust an amount of oxidant gas in the fuel cell. The diagnosing section is configured to diagnose the degree of dryness inside the fuel cell on the basis of the low-frequency impedance when the oxidant gas amount adjustment section adjusts the amount of the oxidant gas to be equal to or smaller than a reference gas amount.Type: GrantFiled: January 25, 2018Date of Patent: July 14, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Ishikawa, Takashi Yamamoto, Shigeki Hasegawa
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Patent number: 10707467Abstract: A separator for a rechargeable battery includes a porous substrate and an adhesive layer on at least one surface thereof. The adhesive layer includes a first binder, a second binder, and a filler. The first binder includes a structural unit derived from vinylidene fluoride and a structural unit derived from hexafluoropropylene. The structural unit derived from hexafluoropropylene is included in an amount of about 10 wt % or less based on a total weight of the first binder. A weight average molecular weight of the first binder ranges from about 800,000 to about 1,500,000. The second binder includes a structural unit derived from vinylidene fluoride and a structural unit derived from hexafluoropropylene. The structural unit derived from hexafluoropropylene is included in an amount of 10 wt % or less based on a total weight of the second binder. A weight average molecular weight of the second binder is 600,000 or less.Type: GrantFiled: May 16, 2017Date of Patent: July 7, 2020Assignee: SAMSUNG SDI CO., LTD.Inventors: Jinwoo Kim, Jungyoon Lee, Sangho Lee
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Patent number: 10680236Abstract: A composite Si-carbon fiber comprising a carbon matrix material with 1-90 wt % silicon embedded therein. The composite carbon fibers are incorporated into electrodes for batteries. The battery can be a lithium ion battery. A method of making an electrode incorporating composite Si-carbon fibers is also disclosed.Type: GrantFiled: February 8, 2018Date of Patent: June 9, 2020Assignee: UT-BATTELLE, LLCInventors: Orlando Rios, Claus Daniel, Wyatt Evan Tenhaeff, Surendra K. Martha
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Patent number: 10673058Abstract: A battery technology, and more particularly, a current collector may be widely used in secondary batteries, and an electrode may employ such technology. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core including a plurality of metal filaments, and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core.Type: GrantFiled: September 26, 2018Date of Patent: June 2, 2020Assignee: JENAX INC.Inventors: Yong Min Lee, Myung-Hyun Ryou, Seonghyun Song, Jaecheol Choi, Chang Hyeon Kim