Separator, Retainer Or Spacer Insulating Structure (other Than A Single Porous Flat Sheet, Or Either An Impregnated Or Coated Sheet Not Having Distinct Layers) Patents (Class 429/129)
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Patent number: 10916782Abstract: The present invention provides a solid-liquid electrolyte in the form of a gel which comprises an organic carbonate-based solvent, precipitated silica, at least one ionically conducting salt and optionally additives. The invention also relates to batteries containing said solid-liquid electrolyte. The solid-liquid electrolyte according to the present invention can improve the electrochemical properties of batteries and prevent electrolyte leakage thus reducing the risk of corrosion of the batteries.Type: GrantFiled: August 24, 2017Date of Patent: February 9, 2021Inventors: Thierry Le Mercier, Marc-David Braida, Robin Amisse, Jules Valente
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Patent number: 10897043Abstract: A secondary battery includes a first electrode; a first active material fluid which is electrically connected to the first electrode, contains a first active material and a supporting salt, and is flowable; and a second electrode including a structure which is formed by containing a second active material, the structure either being immersed in the first active material fluid or holding the first active material fluid, and a separating membrane disposed between the first active material fluid and the structure, the separating membrane having ion conducting properties and insulating properties.Type: GrantFiled: October 20, 2017Date of Patent: January 19, 2021Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Chikaaki Okuda, Hiroki Kondo, Tsuyoshi Sasaki
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Patent number: 10886527Abstract: Provided with a negative electrode for a secondary battery comprising an anode active material that is a mixture of an amorphous carbon-coated graphite active material A having a density of 1.50 g/cm3 or less in press pelletizing at 2 kN/cm2 and a carbon-based active material B having a density of 1.65 g/cm3 or higher in press pelletizing at 2 kN/cm2 in a weight ratio of 90:10 to 99:1 as A:B, so that the cracking of amorphous carbon-coated graphite is suppressed and high-temperature life characteristics is improved.Type: GrantFiled: March 16, 2016Date of Patent: January 5, 2021Assignee: Envision AESC Energy Devices Ltd.Inventor: Hiroo Takahashi
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Patent number: 10875964Abstract: A polymer compound to be used as a binder for a negative electrode of a power storage device is provided. The polymer compound is formed by condensation of a polyacrylic acid and a polyfunctional amine represented by the following general formula (1), where X is a ring structure having 1 to 3 benzene rings; and C1 to C4 are each a carbon atom constituting a benzene ring in the ring structure.Type: GrantFiled: March 27, 2017Date of Patent: December 29, 2020Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke Sugiyama, Takeshi Kondo, Nobuhiro Goda
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Patent number: 10854864Abstract: Provided are a separator for a lithium secondary battery and a lithium secondary battery comprising the same. The separator for a lithium secondary battery includes: a porous substrate; and a coating layer disposed on one side or both sides of the porous substrate and including a first inorganic particle and a second inorganic particle having different lengths of a major axis, and a binder, wherein a moisture content is less than 800 ppm after being left for 12 hours at a temperature of 40° C. and relative humidity of 90%.Type: GrantFiled: August 19, 2019Date of Patent: December 1, 2020Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.Inventors: Yun Bong Kim, Won Sub Kwack, Hye Jin Kim, Su Ji Lee, Kyu Young Cho
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Patent number: 10833304Abstract: The disclosure relates to a one-way valve, a top cover component, a box and a battery module. The one-way valve includes: a valve body including an inlet end, an exhaust end and an air-flow passage, the air-flow passage including a first flow-passing hole, a second flow-passing hole and a protrusion disposed on a bottom wall of the first flow-passing hole, the second flow-passing hole penetrating through the protrusion; an elastic valve cap, the protrusion being sheathed with and in a sealed connection with the elastic valve cap, a flow-passing gap is formed between an outer surface of the elastic valve cap and a hole wall of the first flow-passing hole, the second flow-passing hole includes a conical hole-section; a valve cover in connection with the exhaust end, wherein the valve cover is disposed within the first flow-passing hole and includes an exhaust passage in connection with the first flow-passing hole.Type: GrantFiled: August 28, 2018Date of Patent: November 10, 2020Assignee: Contemporary Amperex Technology Co., LimitedInventors: Zhiyi You, Xiaofan Wang, Feng Qin, Lin Ma, Zhi Wang, Xinfu Xiao
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Patent number: 10804520Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure.Type: GrantFiled: August 7, 2019Date of Patent: October 13, 2020Assignee: LG Chem, Ltd.Inventors: Ji Won Park, Myung Hoon Ko, Seung Ho Na, Chang Bum Ahn
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Patent number: 10784508Abstract: The present disclosure provides a preparation method of a modified positive electrode active material preparation method, which comprising steps of: dispersing a positive electrode active material matrix into an alcohol solvent to form a positive electrode active material matrix suspension; dissolving an alcohol-soluble aluminum salt in an alcohol solvent to form an alcohol-soluble aluminum salt solution; dissolving an alcohol-soluble phosphorous compound in an alcohol solvent to form an alcohol-soluble phosphorous compound solution; mixing the alcohol-soluble aluminum salt solution and the alcohol-soluble phosphorous compound solution and heating to react, obtaining a liquid-phase coating solution which contains aluminum phosphate after the reaction is finished; mixing and stirring the positive electrode active material matrix suspension and the liquid-phase coating solution which contains aluminum phosphate, extraction filtrating and obtaining a filter cake after the stirring is finished, then drying and baType: GrantFiled: May 10, 2018Date of Patent: September 22, 2020Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Huan Ni, Yujun Chen, Xinliang Kuang, Xuguang Gao, Long Wang, Na Liu
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Patent number: 10784536Abstract: A method including a step of preparing a positive electrode including a positive electrode mixture layer, a negative electrode including a negative electrode mixture layer, and a nonaqueous electrolyte; and a step of accommodating the positive electrode, the negative electrode, and the nonaqueous electrolyte in a battery case. The nonaqueous electrolyte contains a compound (I) represented by the following formula (I) LiO3S—R—SO3Li (wherein R represents a linear hydrocarbon group having 1 to 10 carbon atoms). When a BET specific surface area of the negative electrode mixture layer is represented by X (m2/g) and when an amount of the compound (I) with respect to the total amount of the nonaqueous electrolyte is represented by Y (mass %), the following relationships 3?X?4.3, 0.2?Y?0.4, and (Y/X)?0.093 are satisfied.Type: GrantFiled: March 30, 2016Date of Patent: September 22, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Yamasaki, Tatsuya Hashimoto
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Patent number: 10763483Abstract: The battery pack disclosed herein includes a plurality of unit cells. The plurality of unit cells is connected to each other by a bus bar. The bus bar has two terminal connection portions and a linking portion. A linear welded portion is formed in a portion where the terminal connection portions and the external terminals overlap with each other. The linear welded portion is non-annular in the plane of the terminal connection portions and has a straight linear portion extending in a direction orthogonal to the arrangement direction, and two circular arc portions that extend from respective ends of the straight linear portion and are curved toward a side opposite to the side where the linking portion is located.Type: GrantFiled: April 6, 2018Date of Patent: September 1, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki Nagai, Koji Tamaru, Ryo Kagami, Yuki Okamoto
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Patent number: 10756330Abstract: A silicon based micro-structured material and methods are shown. In one example, the silicon based micro-structured material is used as an electrode in a battery, such as a lithium ion battery. A battery, comprising: a first electrode, including a number of porous silicon spheres; a second electrode; and an electrolyte in contact with both the first electrode and the second electrode.Type: GrantFiled: June 19, 2015Date of Patent: August 25, 2020Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Wei Wang, Cengiz S Ozkan, Mihrimah Ozkan
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Patent number: 10727481Abstract: A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li+ intercalation medium. Highly reversible Li+ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. Addition of surface effect dominant sites in close proximity to the intercalation medium results in a hybrid device that includes advantages of both batteries and capacitors.Type: GrantFiled: March 28, 2018Date of Patent: July 28, 2020Assignee: CF TRAVERSE LLCInventor: Ronald A. Rojeski
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Patent number: 10696840Abstract: A resin composition for semiconductor encapsulation, containing (A) an epoxy resin, (B) a phenolic resin-based curing agent, (C) an inorganic filler, and (D) amorphous carbon, wherein the amorphous carbon of the component (D) contains 30 atomic % or more of an SP3 structure and 55 atomic % or less of an SP2 structure.Type: GrantFiled: November 5, 2015Date of Patent: June 30, 2020Assignee: KYOCERA CORPORATIONInventors: Ken Uchida, Shinichi Kazama, Yoshitake Terashi
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Patent number: 10693195Abstract: Provided is a rechargeable battery. The rechargeable battery includes an electrode assembly, an electrolyte immersing the electrode assembly therein, a case assembly accommodating the electrode assembly and the electrolyte, and an absorbing member disposed in the electrode assembly to absorb stress applied to the inside of the electrode assembly when the electrode assembly is expanded.Type: GrantFiled: November 4, 2015Date of Patent: June 23, 2020Assignee: LG CHEM, LTD.Inventors: Jin Uk Do, Ju Bin Kim, Sang Sok Jung
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Patent number: 10673044Abstract: An electrical insulator and its related battery are provided. The electrical insulator includes a separation region and a supporting region. The supporting region covers the edge of at least one of opposite surfaces of the separation region and at least a part of a lateral surface of the separation region. The battery includes the electrical insulator. The electrical insulator is disposed between cathode and anode active material layers of the battery and contacts the active material layers directly. The cathode and the anode active material layers are completely electrically isolated because the electrical insulator totally covers at least one active material layer. Hence, the inner short of the battery is prevented.Type: GrantFiled: October 9, 2017Date of Patent: June 2, 2020Assignees: PROLOGIUM TECHNOLOGY CO., LTD., PROLOGIUM HOLDING INC.Inventor: Szu-Nan Yang
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Patent number: 10673047Abstract: The present disclosure relates to a cable type secondary battery which includes: a cable type electrode assembly including an inner electrode, a separator layer formed to surround the outer surface of the inner electrode and preventing a short-circuit between electrodes, and an outer electrode formed to surround the separator layer; a taping layer formed by spirally winding a sheet type tape so that it surrounds the outer surface of the cable type electrode assembly; and a packaging formed to surround the outer surface of the taping layer. According to the present disclosure, it is possible to prevent separation of the separator layer or the outer electrode, and thus to reinforce the bending characteristics of the cable type secondary battery.Type: GrantFiled: February 6, 2017Date of Patent: June 2, 2020Assignee: KG Chem, Ltd.Inventors: In-Sung Uhm, Je-Young Kim, Suk-In Noh, Young-Ji Yuk, Dong-Chan Lee
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Patent number: 10661462Abstract: A wrinkle or misaligned winding caused in a separator roll is inhibited. In a slitting apparatus (6), a conveying direction of a first separator (12a) is changed to a first take-up roller (70U) side by a direction changing roller (68), the first separator is conveyed via a take-up assisting roller (69) which is provided between the direction changing roller and a first touch roller (81U) so as to shorten a roller-to-roller distance to the first touch roller, and the first separator which is being wound is pressed onto a take-up surface by the first touch roller.Type: GrantFiled: June 27, 2018Date of Patent: May 26, 2020Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kiyomu Nomura, Tatsuya Kataoka
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Patent number: 10658697Abstract: A secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode including a carbon material and a silicon-based material; and an electrolyte layer. The electrolyte layer includes an electrolytic solution and a polymeric compound and has one or more through-holes extending in a thickness direction of the electrolyte layer.Type: GrantFiled: April 26, 2018Date of Patent: May 19, 2020Assignee: Murata Manufacturing Co., Ltd.Inventor: Masayuki Iwama
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Patent number: 10644332Abstract: A gas-liquid separator includes a casing in which there are formed an inlet port to which a gas-liquid two-phase flow is supplied, and an outlet port through which a gas flow is discharged after the gas-liquid two-phase flow has been separated into a gas and a liquid. A gas-liquid separation chamber is formed in the casing by a partition wall. The inlet port opens on a surface of the partition wall in the gas-liquid separation chamber. The gas-liquid separator further includes a deflection member configured to change a flow direction of the gas-liquid two-phase flow that flows in from the inlet port, and a clearance is formed between the deflection member and an inner wall of the casing.Type: GrantFiled: June 20, 2018Date of Patent: May 5, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Yuji Okamura, Tetsuya Fukuda, Yoichiro Saito
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Patent number: 10644323Abstract: Provided is a metal mesh foil for a current collector of a lithium secondary battery having a hydrophobic deposition layer formed on a surface thereof, wherein the hydrophobic deposition layer is a deposition layer, in which a hydrophobic material is deposited, and has a thickness of 1 ? to 100 ?.Type: GrantFiled: September 21, 2016Date of Patent: May 5, 2020Assignee: LG Chem, Ltd.Inventors: Su Min Lee, Sun Young Shin, Oh Byong Chae, Eun Kyung Kim
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Patent number: 10637073Abstract: A positive electrode for a metal-air battery, the positive electrode including: a first layer disposed on a surface of an electrolyte membrane or a separator and including a first carbon material, a first electrolyte, and a first binder having an affinity with the first electrolyte; and a second layer disposed on the first layer and including a second carbon material, a second electrolyte, and a second binder having an affinity with the second electrolyte, wherein the first carbon material is different from the second carbon material, the first carbon material has a Brunauer Emmett Teller specific surface area which is greater than a Brunauer Emmett Teller specific surface area of the second carbon material, and wherein an amount of the first binder may be about 1.5 times to about 3 times greater than an amount of the second binder.Type: GrantFiled: July 17, 2017Date of Patent: April 28, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jungock Park, Mokwon Kim, Joonhee Kim, Kyounghwan Choi
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Patent number: 10629958Abstract: An objective is to provide a novel aqueous electrolytic solution constituting an aqueous power storage device that stably operates even at a high voltage. An electrolytic solution for a power storage device contains water as a solvent and has a composition in which an amount of the solvent is not greater than 4 mol with respect to 1 mol of an alkali metal salt.Type: GrantFiled: January 14, 2016Date of Patent: April 21, 2020Assignees: THE UNIVERSITY OF TOKYO, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tomoyuki Kawai, Junichi Niwa, Atsuo Yamada, Yuki Yamada, Kenji Usui
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Patent number: 10615406Abstract: A negative electrode of a lithium ion secondary battery of the present invention includes a current collector (32) and a negative electrode active material layer (34) provided on the current collector (32). In the negative electrode of a lithium ion secondary battery, the negative electrode active material layer (34) includes carbon particles, a degree of graphitization of the carbon particles is 1.0 or more and 1.5 or less and a degree of orientation of the carbon particles is 50 or more and 150 or less; where, the degree of graphitization is a ratio (P101/P100) between a peak intensity P101 of the (101) plane and a peak intensity P100 of the (100) plane in an X-ray diffraction pattern and the degree of orientation is a ratio (P002/P110) between a peak intensity P002 of the (002) plane and a peak intensity P110 of the (110) plane in an X-ray diffraction pattern.Type: GrantFiled: March 8, 2018Date of Patent: April 7, 2020Assignee: TDK CORPORATIONInventors: Hiroshi Sasagawa, Yasuyuki Kawanaka, Takuya Aoki
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Patent number: 10615454Abstract: An electrolyte and a lithium battery including the electrolyte, a positive electrode, and a negative electrode are provided. The electrolyte includes a lithium difluorophosphate (LiPO2F2), a sultam-based compound, and an organic solvent. The electrolyte may reduce an internal resistance increase rate of a lithium battery, and thus improve high-temperature stability of the lithium battery.Type: GrantFiled: August 15, 2016Date of Patent: April 7, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Hyunbong Choi, Miyoung Son, Harim Lee, Woocheol Shin, Makhmut Khasanov
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Patent number: 10581080Abstract: A cathode includes a cathode active material layer including a cathode active material; and a coating layer that is disposed on the cathode active material layer and that includes a block copolymer, wherein the block copolymer includes at least one first block that forms a structure domain and a second block that forms an ion conductive domain, and a total amount of the first block is in a range of about 20 weight percent to about 80 weight percent based on the total weight of the block copolymer.Type: GrantFiled: December 23, 2016Date of Patent: March 3, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Yonggun Lee, Saebom Ryu, Wonseok Chang
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Patent number: 10573924Abstract: An electrochemical cell includes a composite electrode body with at least one positive and at least one negative electrode; an electrolyte that impregnates the composite electrode body; and a housing with a liquid-impervious interior, wherein the composite electrode body impregnated with the electrolyte is disposed in the interior, and the housing consists of PEK or a PEK based material.Type: GrantFiled: June 15, 2017Date of Patent: February 25, 2020Assignee: VARTA Microbattery GmbHInventors: Rolf Brenner, Juergen Ernsperger, Claus-Christian Fischer, Winfried Gaugler, Rainer Hald, Goran Kilibarda, Bernd Kreidler
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Patent number: 10541400Abstract: A secondary battery includes an electrode body and an electrolytic solution, the electrode body including a positive electrode, a negative electrode, and a separator. The separator includes a resin substrate that has a multi-layer structure including a porous polyethylene layer and a porous high melting point resin layer, the porous polyethylene layer including a polyethylene resin and being disposed to face the negative electrode, and the porous high melting point resin layer including a resin having a higher melting point than the polyethylene resin. The porosity of the porous polyethylene layer is 2% to 5%. A ratio of the thickness of the porous polyethylene layer to the total thickness of the resin substrate is 0.048 to 0.091.Type: GrantFiled: September 21, 2017Date of Patent: January 21, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Emi Tsutsui
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Patent number: 10535908Abstract: A lithium ion conducting protective film produced using a layer-by-layer assembly process. The lithium ion conducting protective film is assembled on a substrate by a sequential exposure of the substrate to a first poly(ethylene oxide) (PEO) layer including a cross-linking silane component on the first side of the substrate, a graphene oxide (GO) layer on the first PEO layer, a second poly(ethylene oxide) (PEO) layer including a cross-linking silane component on the GO layer and a poly(acrylic acid) (PAA) layer on the second PEO layer. The film functions as a lithium ion conducting protective film that isolates the lithium anode from the positive electrochemistry of the cathode in a lithium-air battery, thereby preventing undesirable lithium dendrite growth.Type: GrantFiled: June 29, 2017Date of Patent: January 14, 2020Assignees: SAMSUNG ELECTRONICS CO., LTD., MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Mariya Khiterer, Paula T. Hammond, Sun Hwa Lee
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Patent number: 10505168Abstract: Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Also provided are electrochemical cells comprising such separators.Type: GrantFiled: October 31, 2017Date of Patent: December 10, 2019Assignee: Optodot CorporationInventors: Steven Allen Carlson, Ifenna Kingsley Anakor, Greg Robert Farrell
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Patent number: 10505227Abstract: This invention is directed to functional ionic liquid hybrid materials having negligible vapor pressure, nonflammability, good room-temperature ionic conductivity, wide electrochemical windows, and favorable chemical and thermal stability.Type: GrantFiled: January 22, 2015Date of Patent: December 10, 2019Assignee: NOHMS Technologies, Inc.Inventors: Surya S. Moganty, Gabriel Torres
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Patent number: 10476064Abstract: The present invention relates to a jelly-roll type electrode assembly comprising: a sheet-like positive electrode; a sheet-like negative electrode; and a separator which is interposed between the positive electrode and the negative electrode, and which includes a first adhesive coating part and a second adhesive coating part formed on a first surface of a sheet-like porous substrate, and a third adhesive coating part formed on a second surface which is the opposite surface to the first surface, wherein the first adhesive coating part and the second adhesive coating part have different tack strength from each other.Type: GrantFiled: September 2, 2016Date of Patent: November 12, 2019Assignee: LG CHEM, LTD.Inventors: Sung Han Jung, Ki Woong Kim, Sung Pil Yoon
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Patent number: 10468658Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly having a thickness and including a positive electrode and a negative electrode. The battery also includes a case accommodating the electrode assembly. The electrode assembly further includes a plurality of first electrode tabs protruding from the positive electrode and a plurality of second electrode tabs protruding from the negative electrode. The first electrode tabs have a width and are aligned in the thickness dimension of the electrode assembly. A distance TG between the first electrode tabs and the second electrode tabs satisfies the following equations: 1.2TW1<TG<6TW1 and TG>5SW1, where TW1 is the width of the first electrode tabs and SW1 is the minimum distance between the first electrode tabs and a lateral end of the electrode assembly.Type: GrantFiled: August 2, 2016Date of Patent: November 5, 2019Assignee: Samsung SDI Co., Ltd.Inventors: Seong-Gi Choo, Sung-Hwa Eo, Da-Woon Han, Jan-Dee Kim
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Patent number: 10454134Abstract: A lithium secondary battery including a cathode electrode, an anode electrode, and a separation film installed between the cathode electrode and the anode electrode, wherein the cathode electrode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a continuous concentration gradient region between a core part and a surface part thereof, the anode electrode includes a ceramic coating layer on at least one surface thereof, and the separation film includes a base film, and a ceramic coating layer formed on at least one surface of the base film, such that it is possible to achieve a significantly improved effect in both of the lifespan property and penetration durability.Type: GrantFiled: August 9, 2016Date of Patent: October 22, 2019Assignee: SK Innovation Co., Ltd.Inventors: Kook-Hyun Han, Kyung-Bin Yoo, Duck-Chul Hwang
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Patent number: 10431793Abstract: A method of producing a separator is provided. The method includes providing a particle membrane including inorganic particles on at least one principal surface of a porous body by a vapor-phase process such that the particle membrane has a porosity that is non-uniform in a thickness direction thereof. A method of producing a microporous membrane is also provided.Type: GrantFiled: January 20, 2017Date of Patent: October 1, 2019Assignee: Murata Manufacturing Co., Ltd.Inventors: Masahiro Sawaguchi, Masashi Meguro, Masaru Hiratsuka, Yoshiyuki Fuchigami
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Patent number: 10396359Abstract: A method includes treating a CFx material with a base during the formation of a CFx cathode; and assembling the treated CFx material into a cathode electrode and assembling the cathode electrode with a lithium anode electrode and an electrolyte into a cell.Type: GrantFiled: July 1, 2015Date of Patent: August 27, 2019Assignee: Cardiac Pacemakers, Inc.Inventors: Ignacio Chi, Steven P. Findell, Todd Eric Bofinger, Michael J. Root
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Patent number: 10381632Abstract: An electrochemical storage cell is disclosed that comprises a core and a rectangular shell that receives the core snugly therein. The rectangular shell has first and second open ends. A first end cap is used to close the first open end. An anode terminal extends through the first end cap from an interior portion of the electrochemical storage cell to an external portion thereof. A first gasket is secured within the rectangular shell between the first end cap and the core to resiliently hold the core away from the first end cap. A second end cap is used to close the second open end. A cathode terminal extends through the second end cap from an interior portion of the electrochemical storage cell to an external portion thereof. A second gasket is secured within the rectangular shell between the second end cap and the core to resiliently hold the core away from the second end cap.Type: GrantFiled: January 27, 2014Date of Patent: August 13, 2019Assignees: SHENZHEN BYD AUTO R&D COMPANY LIMITED, BYD COMPANY LIMITEDInventors: Weixin Zheng, Qing Lai, Jianhua Zhu
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Patent number: 10381639Abstract: A lithium secondary battery including a cathode, an anode, and a separation film installed between the cathode and the anode, wherein the cathode includes a cathode active material containing lithium-metal oxide of which at least one of the metals has a continuous concentration gradient region between a core part and a surface part thereof, and the separation film includes a base film, and a ceramic coating layer formed on at least one surface of the base film, such that the lifespan property is significantly improved, while exhibiting excellent penetration safety.Type: GrantFiled: June 10, 2016Date of Patent: August 13, 2019Assignee: SK INNOVATION CO., LTD.Inventors: Kook-Hyun Han, Kyung-Bin Yoo, Duck-Chul Hwang
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Patent number: 10340524Abstract: A negative electrode for a lithium battery, including a lithium metal; and a protective layer disposed on at least a part of the lithium metal, wherein the protective layer includes a block copolymer including a structural domain and a hard domain covalently linked to the structural domain, wherein the structural domain includes a structural block of the block copolymer, wherein the hard domain includes a hard block of the block polymer, wherein the structural block includes a plurality of structural repeating units, and wherein the hard block includes a plurality of olefin repeating units.Type: GrantFiled: October 6, 2015Date of Patent: July 2, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yonggun Lee, Toshinori Sugimoto, Yooseong Yang, Wonseok Chang, Hongsoo Choi
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Patent number: 10307925Abstract: Provided is a method for producing a separator which method less causes a tear in the separator. The method is a method for producing a separator by slitting, in a direction in which a separator original sheet (12b) being porous is conveyed, the separator original sheet (12b) into a plurality of separators (12a), including the steps of: (a) conveying the separator original sheet (12b) in a state where the separator original sheet (12b) is in contact with a roller (77); and (b) slitting the separator original sheet (12b) at a portion where the separator original sheet (12b) is in contact with the roller (77).Type: GrantFiled: February 15, 2018Date of Patent: June 4, 2019Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koichiro Watanabe, Tatsuya Kataoka, Kiyomu Nomura
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Patent number: 10270134Abstract: A method of manufacturing an electrode assembly includes a first step of forming one kind of a radical unit or at least two kinds of radical units having an alternately stacked structure of a same number of electrodes and separators; and a second step of forming a cell stack part by repeatedly stacking one kind of the radical units, or by stacking at least two kinds of the radical units. Edge of the separator is not joined with that of adjacent separator. One kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked together or a repeating structure in which the four-layered structure is repeatedly stacked, and at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure.Type: GrantFiled: September 8, 2014Date of Patent: April 23, 2019Assignee: LG Chem, Ltd.Inventors: Ji Won Park, Seung Jae You, Myung Hoon Ko, Jin Ho Ban, Hyang Mok Lee
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Patent number: 10263255Abstract: A lithium secondary battery includes a cathode electrode, an anode electrode, and a separation film installed between the cathode electrode and the anode electrode, wherein the cathode electrode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a concentration gradient region between a core part and a surface part thereof, and the separation film includes a base film and a ceramic coating layer formed on at least one surface of the base film, such that it is possible to achieve a significantly improved effect in both of the lifespan property and penetration durability.Type: GrantFiled: September 9, 2016Date of Patent: April 16, 2019Assignee: SK INNOVATION CO., LTD.Inventors: Kook-Hyun Han, Kyung-Bin Yoo, Duck-Chul Hwang
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Patent number: 10243189Abstract: A separator includes a substrate layer and a porous surface layer that is provided on at least one major surface of the substrate layer and contains a first particle, a second particle, and a resin material. The surface layer includes a first region configured by the first particle and a second region configured by the second particle and the resin material.Type: GrantFiled: October 27, 2016Date of Patent: March 26, 2019Assignee: Murata Manufacturing Co., Ltd.Inventor: Moriaki Okuno
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Patent number: 10236541Abstract: A battery cell testing fixture is provided which includes a user interface, a separator assembly and an optional stand. The user interface includes a module for receiving input voltage data from at least one circuit to provide a variety of battery cell conditions. The separator assembly includes an integrated reference electrode or reference component. The separator assembly is operatively configured to be used with a plurality of test batteries in succession. The separator assembly may be operatively configured to communicate with a current collector, a meter and the user interface.Type: GrantFiled: August 31, 2016Date of Patent: March 19, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Brian J Koch, Ashley McAllister, Robert S Conell
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Patent number: 10236491Abstract: A lithium ion secondary battery includes: an electrode multilayer body including a plurality of electrodes stacked with a plurality of separators interposed therebetween; and a package. An end of each of the plurality of separators of the electrode multilayer body housed in the package projects from each of the plurality of electrodes. The plurality of separators includes a first separator, and a second separator which is disposed inside of the first separator and whose projecting amount of an end is smaller than that of the first separator. The end of the first separator is in contact with an inner surface of the packaging film or an inner surface of the separator located outside of the first separator, the end of the first separator is curved further inside than a virtual extension plane of an outer surface of the second separator.Type: GrantFiled: February 25, 2016Date of Patent: March 19, 2019Assignee: AUTOMOTIVE ENERGY SUPPLY CORPORATIONInventors: Shinichiro Sakaguchi, Aika Kimura, Masatomo Mizuta
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Patent number: 10230090Abstract: A polyolefin-based porous separator, including a first polyolefin-based porous film on a first surface of a second polyolefin-based porous film, and a third polyolefin-based porous film on a second surface of the second polyolefin-based porous film, each of the first and third polyolefin-based porous films containing inorganic particles having an average particle size of 10 nm to 100 nm, a thickness ratio of the first polyolefin-based porous film, the second polyolefin-based porous film, and the third polyolefin-based porous film being 0.5 to 1.5:1 to 6:0.5 to 1.5, and thermal shrinkage rates of the separator in a machine direction and a transverse direction measured after standing at 120° C. for 1 hour each being 5% or less, and air permeability of the separator being 250 sec/100 cc or less.Type: GrantFiled: June 22, 2015Date of Patent: March 12, 2019Assignee: Samsung SDI Co., Ltd.Inventors: Sang Ho Lee, Kee Wook Kim, Yun Gi Kim, Jung Seong Lee, Jung Sue Jang, Jun Ho Chung, Jae Hyun Cho, Dae Hyun Hong
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Patent number: 10211459Abstract: An electrode material for a nonaqueous electrolyte battery of the present embodiment includes a composite particle containing a carbonaceous material. A peak half-width of d-band measured from a Raman spectrum of the carbonaceous material is at 150 cm?1 or more. A ratio Lc/La of a crystallite size Lc in a c-axis direction observed at 20° to 26° in a X-ray diffraction to a crystallite size La in an a-axis direction observed at 40° to 44° is 0.7 or less.Type: GrantFiled: September 8, 2016Date of Patent: February 19, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Yasuyuki Hotta, Takashi Kuboki, Shinsuke Matsuno
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Patent number: 10205166Abstract: A novel hybrid lithium-ion anode material based on coaxially coated Si shells on carbon nanofibers (CNF). The unique cup-stacking graphitic microstructure makes the CNFs an effective Li+ intercalation medium. Highly reversible Li+ intercalation and extraction were observed at high power rates. More importantly, the highly conductive and mechanically stable CNF core optionally supports a coaxially coated amorphous Si shell which has much higher theoretical specific capacity by forming fully lithiated alloy. Addition of surface effect dominant sites in close proximity to the intercalation medium results in a hybrid device that includes advantages of both batteries and capacitors.Type: GrantFiled: April 11, 2016Date of Patent: February 12, 2019Assignee: CF Traverse LLCInventors: Jun Li, Ronald A Rojeski, Steven Klankowski
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Patent number: 10186691Abstract: There is provided a battery including a substantially cylindrically shaped winding electrode having a hollow portion in the center, and a sheath material having flexibility which sheathes the winding electrode, wherein a width of the hollow portion is 2.5 mm or less.Type: GrantFiled: November 18, 2014Date of Patent: January 22, 2019Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Yoshiichi Horikoshi
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Patent number: 10181588Abstract: A battery is provided with a lid member that closes a case, a collector terminal member having an insert-through part, an insulator that electrically insulates the lid member and the collector terminal member, and a gasket that provides a seal between the lid member and the collector terminal member. The lid member has a protrusion protruding downward in the vertical direction from the bottom. A gasket is in the same position as the protruding section in an inside-outside direction, which is perpendicular to the vertical direction, and has a sealing part pressed by the protruding section. At least one gap exists in the vicinity of the seal section in a different position to the seal section in the inside-outside direction, and at least portions of the gaps are enclosed by the gasket and the collector terminal member.Type: GrantFiled: March 21, 2013Date of Patent: January 15, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi Harayama, Kazuyuki Kusama
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Patent number: 10170766Abstract: The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. More specifically, the cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer including an amphiphilic polymer provided on at least one portion of a surface of the cathode active part and including a hydrophilic portion and a hydrophobic portion.Type: GrantFiled: July 8, 2014Date of Patent: January 1, 2019Assignee: LG CHEM, LTD.Inventors: Byoungkuk Son, Minchul Jang, Min Seo Kim, Da Young Sung, Seong Ho Lee