Alkalated Transition Metal Chalcogenide Component Is Active Material Patents (Class 429/231.1)
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Patent number: 11962005Abstract: The present disclosure provides a positive electrode active material having a spinel-type crystal structure that can reduce an increase in resistance and a decrease in capacity retention rate due to repeated charging and discharging of a non-aqueous electrolyte secondary battery. The positive electrode active material disclosed herein is configured of a lithium manganese composite oxide having a spinel-type crystal structure, wherein the lithium manganese composite oxide includes secondary particles in which a plurality of primary particles are aggregated, an average particle diameter of the secondary particles based on a SEM image is 10 ?m or more and 20 ?m or less, an average particle diameter of the primary particles based on a SEM image is 4 ?m or more and 8 ?m or less, and nickel atoms are provided in the surface layer portion of the secondary particles.Type: GrantFiled: October 12, 2021Date of Patent: April 16, 2024Assignee: Prime Planet Energy & Solutions, Inc.Inventors: Yoshinari Makimura, Hiroyuki Yamaguchi, Masataka Tomita
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Patent number: 11949071Abstract: Ionic liquids that can be used to solvate cyclic carbonate esters and halogenated analogues thereof are disclosed.Type: GrantFiled: May 15, 2015Date of Patent: April 2, 2024Assignee: NOHMs Technologies, Inc.Inventors: Surya Moganty, Gabriel Torres, Jonathan Lee
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Patent number: 11942632Abstract: A positive electrode active material particle includes a core that contains lithium cobalt oxide represented by the following Chemical Formula LiaCo(1-x)MxO2-yAy and a shell that is coated on the surface of the core and contains composite metal oxide of a metal with an oxidation number of +2 and a metal with an oxidation number of +3. In particular, M is at least one selected from the group consisting of Ti, Mg, Zn, Si, Al, Zr, V, Mn, Nb and Ni. A is oxygen-substitutional halogen and 1.00?a?1.05, 0?x?0.05, and 0?y?0.001.Type: GrantFiled: October 4, 2017Date of Patent: March 26, 2024Assignee: LG Energy Solution, Ltd.Inventors: Hyuck Hur, Chi Ho Jo, Bo Ram Lee, Sung bin Park, Young uk Park, Wang Mo Jung
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Patent number: 11878605Abstract: Described herein are battery modules comprising integrated module converters, electric-vehicle battery systems comprising such modules, and methods of operating thereof. An electric-vehicle battery system comprises a high-voltage battery pack and high-voltage contactors that controllably isolate the pack's high-voltage area from other areas in the vehicle. The pack comprises multiple battery modules with battery cells and a primary module converter constantly connected to these cells. Each module has a lower voltage than the entire pack. The power output from the primary module converters is used to operate a battery controller and to close/activate the contactors in response to the switch position (e.g., an ignition switch). The primary module converters can be either constantly activated or controllably activated in response to the switch moving into an activated position. For example, a secondary module converter, with a lower power rating, can be used for this primary module converter activation.Type: GrantFiled: May 18, 2023Date of Patent: January 23, 2024Assignee: DIMAAG-AI, Inc.Inventors: Ian Wright, George Fellingham
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Patent number: 11870040Abstract: According to the present disclosure, a technique capable of suppressing an internal short circuit caused by a peeled metal piece and obtaining a safer secondary battery is provided. An electrode plate (negative electrode plate) disclosed herein includes a negative electrode core including copper or a copper alloy, a negative electrode active material layer applied to a surface of the negative electrode core, and a negative electrode tab protruding to the outside from one end side in a width direction. In the negative electrode plate, a first region having an oxide film having a thickness of 40 nm to 200 nm is formed in a region of 0.01 mm to 0.2 mm from an outer end side of the negative electrode tab toward the inside in the width direction, and the first region 22t1 extends along the outer end side 22ta of the negative electrode tab 22t.Type: GrantFiled: January 14, 2022Date of Patent: January 9, 2024Assignee: Prime Planet Energy & Solutions, Inc.Inventors: Kentaro Tsukamoto, Yoshifumi Magari
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Patent number: 11855282Abstract: Provided are compositions, systems, and methods of making and using pre-lithiated cathodes for use in lithium ion secondary cells as the means of supplying extra lithium to the cell. The chemically or electrochemically pre-lithiated cathodes include cathode active material that is pre-lithiated prior to assembly into an electrochemical cell. The process of producing pre-lithiated cathodes includes contacting a cathode active material to an electrolyte, the electrolyte further contacting a counter electrode lithium source and applying an electric potential or current to the cathode active material and the lithium source thereby pre-lithiating the cathode active material with lithium. An electrochemical cell is also provided including the pre-lithiated cathode, an anode, a separator and an electrolyte.Type: GrantFiled: June 16, 2022Date of Patent: December 26, 2023Assignee: CAMX Power LLCInventors: David Ofer, Jane Rempel, Suresh Sriramulu
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Patent number: 11848411Abstract: A cathode configured to use oxygen as a cathode active material, the cathode comprising a lithium-containing metal oxide comprising at least one of: a spinel compound represented by Formula 1 Li1±xM2±yO4????Formula 1 wherein, in Formula 1, M is at least one metal element belonging to Group 2 to Group 16 of the periodic table of the elements, 0<x<1, 0<y<1, 0<?1?1, 0<a<2, 0.3<b<5, and 0<??3; a spinel compound represented by Formula 2 Li4±aM5±bO12????Formula 2 wherein, in Formula 2, M is at least one metal element belonging to Group 2 to Group 16 of the periodic table of the elements, 0<x<1, 0<y<1, 0<?1?1, 0<a<2, 0.3<b<5, and 0<??3; or a perovskite compound represented by Formula 3 LixAyGzO3??.Type: GrantFiled: October 7, 2019Date of Patent: December 19, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangbok Ma, Hyukjae Kwon, Hyunpyo Lee, Myungjin Lee, Donghwa Seo, Dongmin Im
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Patent number: 11804637Abstract: The present application relates to a battery module, comprising a first type of battery cells and a second type of battery cells electrically connected at least in series, wherein the first type of battery cells and the second type of battery cells are battery cells with different chemical systems, the first type of battery cells comprises N first battery cells, the second type of battery cells comprises M second battery cells, N and M are positive integers, the first battery cell comprises a first separator and a first electrolyte, the second battery cell comprises a second separator and a second electrolyte, a kinetic characteristic factor x1 of the first battery cell is: x1=1000×(?1×r1)/(?1×t1×?1), a kinetic characteristic factor x2 of the second battery cell is: x2=1000×(?2×r2)/(?2×t2×?2), and x1 and x2 satisfy: 0.01?x1/x2?160.Type: GrantFiled: August 18, 2022Date of Patent: October 31, 2023Assignee: Contemporary Amperex Technology Co., LimitedInventors: Qian Liu, Yonghuang Ye, Chengdu Liang, Haizu Jin
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Patent number: 11791494Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present disclosure includes a separator which contains a first region located in a flat part of an electrode body and second regions located in a pair of curved parts, the ratio (B/A) of the air permeability (B) in each of the second regions to the air permeability (A) in the first region being 0.5 or more and 0.9 or less. Further, in a section passing through the center in the axial direction of the electrode body and being perpendicular to the axial direction, the ratio (SB/SA) of the sectional area (SB) of the pair of curved parts to the sectional area (SA) of the flat part is 0.28 or more and 0.32 or less.Type: GrantFiled: September 25, 2019Date of Patent: October 17, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Junichi Yogo, Masashi Muraoka, Keisuke Minami
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Patent number: 11791464Abstract: Provided is a cathode active material comprising particles each containing a lithium composite oxide; and a coating layer containing an ammonium phosphate compound and coating each of the particles.Type: GrantFiled: April 13, 2020Date of Patent: October 17, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Hirotetsu Suzuki
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Patent number: 11777145Abstract: A battery includes a substrate; a composite cathode disposed on the substrate; a solid-state electrolyte disposed on the composite cathode; and a lithium anode disposed on the solid-state electrolyte, such that the composite cathode comprises a gel polymer electrolyte layer and a porous cathode active material layer. A method of forming a cathode for a solid-state battery includes mixing an active cathode material, at least one of a conductive carbon component and an electronic conductive component, and a polymer binder to form a slurry; immersing the slurry in an alcohol reagent to form a porous disc structure by phase conversion; and immersing the porous disc structure in a liquid electrolyte to form the cathode.Type: GrantFiled: June 24, 2021Date of Patent: October 3, 2023Assignees: CORNING INCORPORATED, Shanghai Institute of Ceramics Chinese Academy of SciencesInventors: Michael Edward Badding, Mingli Cai, Jun Jin, Zhen Song, Zhaoyin Wen, Tongping Xiu, Liu Yao
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Patent number: 11757134Abstract: Provided is a secondary lithium battery including: a positive electrode plate that is a sintered lithium complex oxide plate; a negative electrode containing carbon and styrene butadiene rubber (SBR); and an electrolytic solution containing lithium borofluoride (LiBF4) in a non-aqueous solvent composed of ?-butyrolactone (GBL), or composed of ethylene carbonate (EC) and ?-butyrolactone (GBL).Type: GrantFiled: March 4, 2020Date of Patent: September 12, 2023Assignee: NGK INSULATORS, LTD.Inventors: Yuki Fujita, Chiori Suzuki
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Patent number: 11749832Abstract: Lithiated electrodes, electrochemical cells including lithiated electrodes, and methods of making the same are provided. The method includes lithiating at least one electrode in an electrochemical cell by applying current across a first current collector of the at least one electrode to a second current collector of an auxiliary electrode. The electrochemical cell may be disposed within a battery packaging and the auxiliary electrode may be disposed within the battery packaging adjacent to an edge of the electrochemical cell. The at least one electrode may include a first electroactive layer disposed on or near one or more surfaces of the first current collector, and the auxiliary electrode may include a second electroactive layer disposed at or near one or more surfaces of the second current collector. The method may further include extracting the auxiliary electrode from the battery packaging and sealing the battery packaging, which includes the pre-lithiated electrochemical cell.Type: GrantFiled: November 20, 2019Date of Patent: September 5, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Xingcheng Xiao, Xingyi Yang, Mark W. Verbrugge, Raghunathan K, Qinglin Zhang
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Patent number: 11749833Abstract: A bipolar battery having a solid ionically conductive polymer material as its electrolyte enabling high voltage discharge.Type: GrantFiled: June 6, 2016Date of Patent: September 5, 2023Assignee: IONIC MATERIALS, INC.Inventors: Michael A. Zimmerman, Randy Leising
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Patent number: 11742481Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes lithium composite oxide particles A and B containing Ni and Mn. The lithium composite oxide particles A include secondary particles a2 that are aggregations of primary particles a1, and contain at least one of zirconium and boron. The lithium composite oxide particles B include at least one of primary particles b1 and secondary particles b2, the primary particles b1 having a larger particle size than the primary particles a1, the secondary particles b2 being aggregations of the primary particles b1 and having a smaller particle size than the secondary particles a2. The mass ratio of the lithium composite oxide particles A to the lithium composite oxide particles B is within the range of 8:2 to 4:6.Type: GrantFiled: January 22, 2019Date of Patent: August 29, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazunori Donoue, Hiroki Watanabe, Shinya Miyazaki
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Patent number: 11742479Abstract: Provided is a precursor of a positive electrode active material containing, in a reduced amount, impurities which do not contribute to a charge/discharge reaction but rather corrode a firing furnace and peripheral equipment and thus having excellent battery characteristics and safety, and production method thereof. A method for producing a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries having a hollow structure or porous structure includes obtaining the precursor by washing nickel-manganese composite hydroxide particles having a particular composition ratio and a pore structure in which pores are present within the particles with an aqueous carbonate solution having a carbonate concentration of 0.1 mol/L or more.Type: GrantFiled: July 12, 2019Date of Patent: August 29, 2023Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Taira Aida, Hiroyuki Toya
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Patent number: 11735768Abstract: The present disclosure relates to solid-state batteries and methods for forming solid-state batteries. The method includes contacting a polymeric precursor and an assembled battery including two or more electrodes defining a space therebetween, where the polymeric precursor fills the space defined between the two or more electrodes and any voids between the solid-state electroactive particles of each electrode; and reacting the polymeric precursor to form a polymeric gel electrolyte that forms a solid-state electrolyte layer in the space between the two or more electrodes and fills the voids between the solid-state electroactive particles of the electrodes. In other instances the method includes disposing the polymeric precursor on exposed surfaces of an electrode and reacting the polymeric precursor to form the solid-state electrolyte.Type: GrantFiled: February 9, 2021Date of Patent: August 22, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Bradley R. Frieberg
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Patent number: 11735761Abstract: The present invention relates to the application of a force to enhance the performance of an electrochemical cell. The force may comprise, in some instances, an anisotropic force with a component normal to an active surface of the anode of the electrochemical cell. In the embodiments described herein, electrochemical cells (e.g., rechargeable batteries) may undergo a charge/discharge cycle involving deposition of metal (e.g., lithium metal) on a surface of the anode upon charging and reaction of the metal on the anode surface, wherein the metal diffuses from the anode surface, upon discharging. The uniformity with which the metal is deposited on the anode may affect cell performance. For example, when lithium metal is redeposited on an anode, it may, in some cases, deposit unevenly forming a rough surface. The roughened surface may increase the amount of lithium metal available for undesired chemical reactions which may result in decreased cycling lifetime and/or poor cell performance.Type: GrantFiled: August 4, 2021Date of Patent: August 22, 2023Assignee: Sion Power CorporationInventors: Chariclea Scordilis-Kelley, John D. Affinito, Lowell D. Jones, Yuriy V. Mikhaylik, Igor P. Kovalev, William F. Wilkening, Christopher T. S. Campbell, John A. Martens
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Patent number: 11728478Abstract: Provided is a positive electrode active material for a lithium ion secondary battery having favorable cycle characteristics and high capacity. A covering layer containing aluminum and a covering layer containing magnesium are provided on a superficial portion of the positive electrode active material. The covering layer containing magnesium exists in a region closer to a particle surface than the covering layer containing aluminum is. The covering layer containing aluminum can be formed by a sol-gel method using an aluminum alkoxide. The covering layer containing magnesium can be formed as follows: magnesium and fluorine are mixed as a starting material and then subjected to heating after the sol-gel step, so that magnesium is segregated.Type: GrantFiled: June 30, 2020Date of Patent: August 15, 2023Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yohei Momma, Takahiro Kawakami, Teruaki Ochiai, Masahiro Takahashi
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Patent number: 11695107Abstract: A porous silicon-containing composite includes: a porous core including a porous silicon composite secondary particle; and a shell on at least one surface of the porous core, the shell including a first graphene, wherein the porous silicon composite secondary particle includes an aggregate of a first primary particle including silicon, a second primary particle including a structure and second graphene on at least one surface of the first primary particle and the second primary particle, and wherein at least one of a shape and a degree of oxidation of the first primary particle and the second primary particle are different. Also an electrode including the porous silicon-containing composite, a lithium battery including the electrode, and a device including the porous silicon-containing composite or the carbon composite.Type: GrantFiled: October 8, 2019Date of Patent: July 4, 2023Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Junghyun Choi, Inhyuk Son, Mijong Kim, Sangkook Mah, Jumyeung Lee, Minwoo Lim, Sungsoo Han
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Patent number: 11682908Abstract: Described is an apparatus for extending cycle-life of a battery cell, where the apparatus comprises: a monitor to monitor a rate of degradation of a battery cell overtime; a comparator to compare the rate of degradation with a threshold; and logic to adjust one or more charge parameters of the battery cell when the rate of degradation crosses the threshold. Described is a method which comprises: monitoring a rate of degradation of a battery cell overtime; comparing the rate of degradation with a threshold; and adjusting one or more charge parameters of the battery cell when the rate of degradation crosses the threshold. Described is a machine-readable storage media having machine executable instructions stored thereon that, when executed, causes one or more processors to perform the method described above.Type: GrantFiled: December 26, 2017Date of Patent: June 20, 2023Assignee: Tahoe Research, Ltd.Inventor: Andrew Keates
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Patent number: 11670765Abstract: Provided are a positive electrode active material that can provide a nonaqueous electrolyte secondary battery having high energy density and excellent output characteristics, a nickel-manganese composite hydroxide as a precursor thereof, and methods for producing these. A nickel-manganese composite hydroxide is represented by General Formula (1): NixMnyMz(OH)2+? and contains a secondary particle formed of a plurality of flocculated primary particles. The nickel-manganese composite hydroxide has a half width of a diffraction peak of a (001) plane of at least 0.35° and up to 0.50° and has a degree of sparsity/density represented by [(a void area within the secondary particle/a cross section of the secondary particle)×100](%) within a range of greater than 10% and up to 25%.Type: GrantFiled: July 28, 2017Date of Patent: June 6, 2023Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Haruki Kaneda, Yuki Koshika, Takaaki Ando
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Patent number: 11664414Abstract: A stacked structure including: a single crystal substrate and, single crystal material on the single crystal substrate, wherein the single crystal material has a same crystallographic orientation as a crystallographic orientation of the single crystal substrate. Also a method of forming the stacked structure, a ceramic electronic component, and a device.Type: GrantFiled: January 14, 2021Date of Patent: May 30, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyungjun Kim, Doh Won Jung, Chan Kwak, Ki Hong Kim, Daejin Yang, Chang Soo Lee
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Patent number: 11664533Abstract: A lithium ion battery electrolyte comprising a glyceryl ether epoxy resin gel is provided. The glyceryl ether epoxy resin gel comprises a glyceryl ether epoxy resin and an electrolyte. The glyceryl ether epoxy resin is a cross-linked polymer obtained by a ring-opening reaction of a glyceryl ether polymer and a polyamine compound. The glyceryl ether polymer is a glycidyl ether polymer comprising at least two epoxy groups, and the polyamine compound comprises at least two amine groups. The cross-linked polymer comprises a main chain and a plurality of hydroxyl groups, and the plurality of hydroxyl groups are located on the main chain. The electrolyte comprises a lithium salt and a non-aqueous solvent. The lithium salt and the glyceryl ether epoxy resin are dispersed in the non-aqueous solvent. A method of making the lithium ion battery electrolyte is also provided.Type: GrantFiled: June 1, 2021Date of Patent: May 30, 2023Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Zhen-Han Fang, Jia-Ping Wang, Shou-Shan Fan
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Patent number: 11664526Abstract: Cathode materials for lithium ion batteries, lithium ion batteries incorporating the cathode materials, and methods of operating the lithium ion batteries are provided. The materials, which are composed of lithium iron oxides, are able to undergo reversible anionic and cationic redox reactions with no O2(g) generation.Type: GrantFiled: December 6, 2018Date of Patent: May 30, 2023Assignees: Northwestern University, UChicago Argonne, LLCInventors: Christopher M. Wolverton, Zhenpeng Yao, Chun Zhan, Jun Lu, Khalil Amine
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Patent number: 11658304Abstract: Composite reference electrode substrates and relating methods are provided. The composite reference electrode substrate includes a separator portion and a current collector portion adjacent to the separator portion. A method for forming the reference electrode substrate includes anodizing one or more surfaces of a first side of an aluminum foil so as to form a porous separator portion disposed adjacent to a porous current collector portion. The porous separator portion includes aluminum oxide, and the current collector portion includes the aluminum foil. The separator portion and the current collector portion each have a porosity of greater than or equal to about 10 vol. % to less than or equal to about 80 vol. %.Type: GrantFiled: February 27, 2020Date of Patent: May 23, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Yucong Wang, Zhe Li, Jing Gao, Brian J. Koch
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Patent number: 11658287Abstract: A rechargeable lithium battery includes a negative electrode including a negative current collector, a negative active material layer disposed on the negative current collector, and a negative electrode functional layer disposed on the negative active material layer; and positive electrode including a positive current collector and a positive active material layer disposed on the positive current collector, wherein the negative electrode functional layer includes flake-shaped polyethylene particles, the positive active material layer includes a first positive active material including at least one of a composite oxide of a metal selected from cobalt, manganese, nickel, and a combination thereof and lithium, a second positive active material including a compound represented by Chemical Formula 1, and carbon nanotubes, and the carbon nanotubes have an average length of 30 ?m to about 100 ?m. LiaFe1-x1Mx1PO4??Chemical Formula 1 In Chemical Formula 1, 0.90?a?1.8, 0?x1?0.Type: GrantFiled: April 30, 2020Date of Patent: May 23, 2023Assignee: Samsung SDI Co., Ltd.Inventors: Jaehwan Ha, Kijun Kim, Junghyun Nam, Hoyong An, Heeeun Yoo, Yeonhee Yoon, Kyuseo Lee, Dongmyung Lee, Seung-Hun Han
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Patent number: 11658297Abstract: Provided are a positive electrode active material with which a nonaqueous electrolyte secondary battery having a high energy density can be obtained, a nickel-manganese composite hydroxide suitable as a precursor of the positive electrode active material, and production methods capable of easily producing these in an industrial scale. Provided is a nickel-manganese composite hydroxide represented by General Formula (1): NixMnyMz(OH)2+? and containing a secondary particle formed of a plurality of flocculated primary particles. The nickel-manganese composite hydroxide has a half width of a diffraction peak of a (001) plane obtained by X-ray diffraction measurement of at least 0.10° and up to 0.40° and has a degree of sparsity/density represented by [(void area within secondary particle/cross section of secondary particle)×100](%) of at least 0.5% and up to 10%. Also provided is a production method of the nickel-manganese composite hydroxide.Type: GrantFiled: October 26, 2021Date of Patent: May 23, 2023Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Haruki Kaneda, Yuki Koshika, Takaaki Ando
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Patent number: 11646437Abstract: Electrochemical cells and methods of making electrochemical cells are described herein. In some embodiments, an apparatus includes a multi-layer sheet for encasing an electrode material for an electrochemical cell. The multi-layer sheet including an outer layer, an intermediate layer that includes a conductive substrate, and an inner layer disposed on a portion of the conductive substrate. The intermediate layer is disposed between the outer layer and the inner layer. The inner layer defines an opening through which a conductive region of the intermediate layer is exposed such that the electrode material can be electrically connected to the conductive region. Thus, the intermediate layer can serve as a current collector for the electrochemical cell.Type: GrantFiled: August 13, 2021Date of Patent: May 9, 2023Assignee: 24M Technologies, Inc.Inventors: Ricardo Bazzarella, Alexander H. Slocum, Tristan Doherty, James C. Cross, III
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Patent number: 11646412Abstract: The present invention is to provide a cathode active material used for a lithium ion secondary battery which has a large charge-discharge capacity, and excels in charge-discharge cycle properties, output properties and productivity, and, a lithium ion secondary battery using the same. The cathode active material used for a lithium ion secondary battery comprises a lithium-transition metal composite oxide having an ?-NaFeO2 type crystal structure and represented by the following formula (1); Li1+aNibCocMdO2+?, where, in the formula (1), M is at least one metal element other than Li, Ni and Co; and a, b, c, d and a are respectively numbers satisfying ?0.04?a?0.04, 0.80?b?1.0, 0?c?0.06, b+c+d=1, and ?0.2<?<0.2, and an a-axis lattice constant of the crystal structure is 2.878×10?10 m or more.Type: GrantFiled: August 28, 2018Date of Patent: May 9, 2023Assignee: HITACHI METALS, LTD.Inventors: Tatsuya Toyama, Shin Takahashi, Hisato Tokoro, Genei Nakajima, Shuichi Takano, Akira Gunji, Akihiko Noie
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Patent number: 11646407Abstract: Composite silicon based materials are described that are effective active materials for lithium ion batteries. The composite materials comprise processed, e.g., high energy mechanically milled, silicon suboxide and graphitic carbon in which at least a portion of the graphitic carbon is exfoliated into graphene sheets. The composite materials have a relatively large surface area, a high specific capacity against lithium, and good cycling with lithium metal oxide cathode materials. The composite materials can be effectively formed with a two-step high energy mechanical milling process. In the first milling process, silicon suboxide can be milled to form processed silicon suboxide, which may or may not exhibit crystalline silicon x-ray diffraction. In the second milling step, the processed silicon suboxide is milled with graphitic carbon. Composite materials with a high specific capacity and good cycling can be obtained in particular with balancing of the processing conditions.Type: GrantFiled: December 23, 2020Date of Patent: May 9, 2023Assignee: Zenlabs Energy, Inc.Inventors: Yogesh Kumar Anguchamy, Haixia Deng, Yongbong Han, Charan Masarapu, Sujeet Kumar, Herman A. Lopez
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Patent number: 11637322Abstract: A lithium battery includes a cathode including a cathode active material; an anode including an anode active material; and an organic electrolytic solution between the cathode and the anode. The cathode active material includes a nickel-containing layered lithium transition metal oxide. A content of nickel in the lithium transition metal oxide is about 60 mol % or more with respect to a total number of moles of transition metals. The organic electrolytic solution includes a first lithium salt; an organic solvent; and a bicyclic sulfate-based compound represented by Formula 1 below: wherein, in Formula 1, each of A1, A2, A3, and A4 is independently a covalent bond, a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl group, in which both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.Type: GrantFiled: September 19, 2018Date of Patent: April 25, 2023Assignee: SAMSUNG SDI CO., LTD.Inventors: Miyoung Son, Kyoungsoo Kim, Yunhee Kim, Jaehong Kim, Hana Ra, Suyeol Ryu, Myunghwan Jeong, Sunjoo Choi, Myungheui Woo, Seungtae Lee, Harim Lee, Siyoung Cha
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Patent number: 11637282Abstract: A cathode active material for a lithium secondary battery includes a lithium-transition metal composite oxide particle having a lattice strain (?) of 0.18 or less, which is calculated by applying Williamson-Hall method defined by Equation 1 to XRD peaks measured through XRD analysis, and having an XRD peak intensity ratio of 8.9% or less, which is defined by Equation 2. By controlling the lattice strain and XRD peak intensity ratio of the lithium-transition metal composite oxide particle, a lithium secondary battery with improved life-span characteristics as well as output characteristics is provided.Type: GrantFiled: August 12, 2021Date of Patent: April 25, 2023Assignee: SK ON CO., LTD.Inventors: Sang Han Lee, Min Gu Kang, Jeong Bae Yoon, Yong Hyun Cho
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Patent number: 11637281Abstract: According to one embodiment, a secondary battery (100) including a positive electrode (5), a negative electrode (3), a first electrolyte (9), and a second electrolyte (8). The negative electrode (3) includes a lithium titanium oxide having a degree of proton substitution of 0.01 to 0.2. The first electrolyte (9) includes water and in contact with the positive electrode (5). The second electrolyte (8) includes water and in contact with the negative electrode (3).Type: GrantFiled: February 22, 2021Date of Patent: April 25, 2023Assignee: Kabushiki Kaisha ToshibaInventors: Hayato Seki, Wataru Uno, Takashi Kuboki
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Patent number: 11611075Abstract: The present invention provides the compound LiMn2--x-yNaxMyO4/Na1-zMnLizMtO2/Na2CO3, to be used as a positive electrode for rechargeable lithium ion battery, where M is a metal or metalloid, 0.0?x?0.5; 0.0?y?0.5; 0.1?z?0.5; 0.0?t?0.3; as well as the method for producing it. The synthesis process includes disolving or mixing the precursor metals and then calcining them in air or controlled atmosphere in a temperature range between 250° C. and 1000° C., and for a time range of 0.5 h to 72 h to obtain the composite proposed with the interaction of its three present phases, presenting a high retention capacity during repeated loading/unloading cycles and excellent discharge capacity both at room temperature and up to 55° C.Type: GrantFiled: December 18, 2018Date of Patent: March 21, 2023Assignee: INSTITUTO TECNOLOGICO DE SANTO DOMINGOInventors: Melvin Arias, Lorenzo Caputi, Isaias Martinez, Parra Santana, Noel Upia
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Patent number: 11587741Abstract: An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode, where the anode and/or electrode includes an electrode film having a super-fibrillized binder material and carbon. The electrode film can have a reduced quantity of the binder material while maintaining desired mechanical and/or electrical properties. A process for fabricating the electrode film may include a fibrillization process using reduced speed and/or increased process pressure such that fibrillization of the binder material can be increased. The electrode film may include an electrical conductivity promoting additive to facilitate decreased equivalent series resistance performance. Increasing fibrillization of the binder material may facilitate formation of thinner electrode films, such as dry electrode films.Type: GrantFiled: February 11, 2021Date of Patent: February 21, 2023Assignee: Tesla, Inc.Inventors: Santhanam Raman, James Borkenhagen, Xiaomei Xi, Xiang-Rong Ye
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Patent number: 11557762Abstract: The present invention relates to a lithium composite metal oxide which satisfies the requirements (1) and (2) described below. Requirement (1): The ratio of the half width A of the diffraction peak within the range of 2?=64.5±1° to the half width B of the diffraction peak within the range of 2?=44.4±1°, namely A/B is from 1.39 to 1.75 (inclusive) in powder X-ray diffractometry using a Cu—K? ray. Requirement (2): The ratio of the volume-based 90% cumulative particle size (D90) to the volume-based 10% cumulative particle size (D10), namely D90/D10 is 3 or more.Type: GrantFiled: October 11, 2019Date of Patent: January 17, 2023Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Daisuke Nagao
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Patent number: 11508953Abstract: A negative electrode for a lithium secondary battery, which includes a negative electrode active material layer formed on a negative electrode collector, and a coating layer formed on the negative electrode active material layer and which includes lithium metal and metal oxide, a lithium secondary battery including the same, and a method of preparing the negative electrode.Type: GrantFiled: April 17, 2018Date of Patent: November 22, 2022Assignee: LG ENERGY SOLUTION, LTD.Inventors: Oh Byong Chae, Yoon Ah Kang, Jun Hyuk Song, Eun Kyung Kim, Sang Wook Woo
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Patent number: 11508987Abstract: The nonaqueous electrolyte secondary battery comprises the following: a positive electrode including a positive electrode active material that includes a lithium-containing transition metal oxide, a negative electrode including a negative electrode current collector wherein lithium metal deposits on the negative electrode current collector during charging, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The molar ratio of the total amount of lithium held by the positive electrode and the negative electrode to the amount of transition metal in the positive electrode is not more than 1.1. In addition, in the discharged state, a space layer is present between the negative electrode and the separator, and the positive electrode capacity per unit area, ? (mAh/cm2), of the positive electrode and the average in thickness, X (?m), of the space layer 50 satisfy 0.05??/X?0.2.Type: GrantFiled: October 10, 2018Date of Patent: November 22, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tomohiro Harada, Hiroshi Minami
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Patent number: 11444278Abstract: A positive electrode material for lithium secondary batteries capable of easily doping vanadium oxide with molybdenum, and a method of manufacturing the same are disclosed. The method of manufacturing a positive electrode material for lithium secondary batteries includes (a) reacting vanadium oxide with a water-soluble molybdenum-based compound in the presence of a solvent; and (b) thermally treating the reaction product of (a).Type: GrantFiled: October 25, 2018Date of Patent: September 13, 2022Assignee: LG ENERGY SOLUTION, LTD.Inventors: Sung Chul Lim, Jonghyun Chae, Suhwan Kim
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Patent number: 11437618Abstract: A positive electrode active material for lithium secondary batteries which is able to doped/undoped with lithium ions and contains at least Ni, in which a ratio P/Q (atom %/mass %) of a concentration P (atom %) of sulfur atoms being present in a surface of the positive electrode active material to a concentration Q (mass %) of sulfuric acid radicals being present in the whole positive electrode active material is more than 0.8 and less than 5.0, and the Q (mass %) is 0.01 or more and 2.0 or less.Type: GrantFiled: November 4, 2016Date of Patent: September 6, 2022Assignees: SUMITOMO CHEMICAL COMPANY, LIMITED, TANAKA CHEMICAL CORPORATIONInventors: Takashi Arimura, Jun-ichi Kageura, Kenji Takamori, Kimiyasu Nakao, Daisuke Yamashita, Yusuke Maeda
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Patent number: 11431042Abstract: A battery system includes a plurality of battery cells connected in parallel. Each battery cell includes a positive and negative tab. The battery system also includes a plurality of thermal switch devices (e.g., temperature cut off (TCO) or positive temperature coefficient (PTC) devices). Each thermal switch device is electrically coupled to a respective cell. The battery system further includes a rigid-flex circuit board comprising a plurality of rigid regions. Each rigid region is physically and electrically connected to an adjacent rigid region by a respective flexible region. Each rigid region is electrically coupled to respective positive and negative tabs of a respective battery cell. Each thermal switch device prevents abnormal current flow (e.g., by limiting the flow of current at high temperatures) between a first battery cell that is coupled to the thermal switch device and a second battery cell that is adjacent to the first battery cell.Type: GrantFiled: September 8, 2020Date of Patent: August 30, 2022Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Karthik Kadirvel, Jason Howard, Michael Xingyi Yu, Bryan W. Fan
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Patent number: 11424436Abstract: A method of preparing a positive electrode active material for a secondary battery includes preparing a precursor of a composite transition metal oxide compound represented by Formula 1, and mixing the precursor, a lithium source, and a doping element source and sintering the mixture to form a doped lithium composite transition metal oxide, wherein the doping element source is a hydroxide-based compound. Ni1?(x1+y1)Cox1May1(OH)2??[Formula 1] wherein, Ma is at least one element selected from the group consisting of manganese (Mn) and aluminum (Al), and 0<x1?0.4, 0<y1?0.4, and 0<x1+y1?0.4. The positive electrode active material satisfies a weight loss ratio at 600° C. of 1.0% or less and a weight loss ratio at 900° C. of 2.0% or less during thermogravimetric analysis (TGA).Type: GrantFiled: October 17, 2018Date of Patent: August 23, 2022Assignee: LG Chem, Ltd.Inventors: Na Ri Park, Sung Soon Park
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Patent number: 11417874Abstract: Provided is a non-aqueous electrolyte secondary battery capable of reliably operating an electricity shut-off mechanism at overcharging without deteriorating battery performance. The non-aqueous electrolyte secondary battery (1) includes, in a container (2): a positive electrode (41); in-container positive electrode terminals (21) and (23); a negative electrode (42); in-container negative electrode terminals (22) and (24); a non-aqueous electrolyte solution; and an electricity shut-off mechanism (68b) capable of shutting off energization with the outside of the container when the internal pressure of the container rises. A solid electrolyte layer that produces gas allowing the electricity shut-off mechanism (68b) to be operated is included in at least one member of a positive electrode mixture layer unformed portion (41b), a negative electrode mixture layer unformed portion (42b), the in-container positive electrode terminals (21) and (23), and the in-container negative electrode terminals (22) and (24).Type: GrantFiled: March 12, 2019Date of Patent: August 16, 2022Assignee: HONDA MOTOR CO., LTD.Inventors: Hidefumi Nikawa, Kazuki Saimen
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Patent number: 11404686Abstract: The present invention provides a negative electrode active material for lithium ion batteries which has high adhesiveness and followability to a negative electrode active material in volume expansion and contraction during charging and discharging, excellent contact and adhesiveness to a conductive aid, a binder, and a current collector, and a high suppressing effect on decomposition of an electrolyte solution. Due to these features, the negative electrode active material for lithium ion batteries is capable of achieving excellent cycle characteristics and rate characteristics and high coulombic efficiency. The present invention also provides a negative electrode for lithium ion secondary batteries and a lithium ion secondary battery each including the negative electrode active material for lithium ion batteries, and a method for producing a negative electrode active material for lithium ion batteries.Type: GrantFiled: April 26, 2018Date of Patent: August 2, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Ren-de Sun, Shoji Nozato, Akira Nakasuga
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Patent number: 11387453Abstract: Provided are a positive electrode active material that can provide a secondary battery extremely excellent in output characteristics and having sufficient volume energy density, a nickel-manganese composite hydroxide as a precursor thereof, and methods for producing these. A nickel-manganese composite hydroxide is represented by General Formula (1): NixMnyMz(OH)2+?, and contains a secondary particle formed of a plurality of flocculated primary particles. The nickel-manganese composite hydroxide has a half width of a (001) plane of at least 0.40° and has an average degree of sparsity/density represented by [(a void area within the secondary particle/a cross section of the secondary particle)×100] (%) falling within a range of greater than 22% and up to 40%.Type: GrantFiled: July 28, 2017Date of Patent: July 12, 2022Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Haruki Kaneda, Yuki Koshika, Takaaki Ando
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Patent number: 11362330Abstract: A composite positive active material represented by Formula 1, LiaNibCocMndMeO2??Formula 1 wherein, in Formula 1, M is zirconium (Zr), aluminum (Al), rhenium (Re), vanadium (V), chromium (Cr), iron (Fe), gallium (Ga), silicon (Si), boron (B), ruthenium (Ru), titanium (Ti), niobium (Nb), molybdenum (Mo), magnesium (Mg), or platinum (Pt), 1.1?a?1.3, b+c+d+e?1, 0?b?0.3, 0?c?0.3, 0<d?0.6, and 0?e?0.1, wherein, through atomic interdiffusion of lithium and the metal, the composite positive active material has a uniform distribution of lithium excess regions and a uniform degree of disorder of metal cations, and the metal cations have a disordered, irregular arrangement at an atomic scale. Also a method of preparing the composite positive active material, a positive electrode including the composite positive active material, and a lithium battery including the positive electrode.Type: GrantFiled: October 1, 2019Date of Patent: June 14, 2022Assignees: SAMSUNG ELECTRONICS CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATIONInventors: Donghee Yeon, Byoungwoo Kang, Junghwa Lee, Byungjin Choi, Sukgi Hong, Jinsu Ha
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Patent number: 11362333Abstract: A cathode and a battery providing the cathode is provided. The cathode comprises a lithium metal oxide. The lithium metal oxide comprises nickel, aluminum, and iron. The lithium metal oxide is substantially free of cobalt. The battery comprises an anode, the cathode, a separator, and an electrolyte.Type: GrantFiled: January 23, 2020Date of Patent: June 14, 2022Assignee: UT-BATTELLE, LLCInventors: Ilias Belharouak, Marissa Wood, Chengyu Mao, Jianlin Li, Jagjit Nanda, Nitin Muralidharan
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Patent number: 11362331Abstract: Compounds, powders, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described.Type: GrantFiled: March 14, 2017Date of Patent: June 14, 2022Assignee: Apple Inc.Inventors: Hongli Dai, Akshaya K. Padhi, Huiming Wu, Dapeng Wang, Christopher S. Johnson, John David Carter, Martin Bettge, Ana Kircova, Chi-Kai Lin, YoungHo Shin, Xiaoping Wang
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Patent number: 11362318Abstract: A purpose of one embodiment of the present invention is to provide a lithium ion secondary battery which comprises lithium nickel composite oxide having high nickel content in a positive electrode and has excellent battery characteristics. The first lithium ion secondary battery of the present invention comprises a lithium nickel composite oxide represented by the following formula and carbon nanotubes in a positive electrode, wherein a ratio (a)/(b) of an average length (a) of the carbon nanotubes to an average particle size (b) of primary particles of the lithium nickel composite oxide is 0.5 or more, LiyNi(1-x)MxO2 wherein 0?x?0.4, 0<y?1.2, and M is at least one element selected from the group consisting of Co, Al, Mn, Fe, Ti, and B.Type: GrantFiled: August 3, 2017Date of Patent: June 14, 2022Assignee: NEC CORPORATIONInventor: Takeshi Azami