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11. 发明授权

US12034126B2 Hybrid solid-state cell with a 3D porous cathode structure 有权
公开(公告)号：US12034126B2
公开(公告)日：2024-07-09
申请号：US18339868
申请日：2023-06-22
申请人： Sakuu Corporation
发明人： Steven Zhichao Shi , Philip Eugene Rogren
IPC分类号： H01M4/64 , B29C64/106 , B33Y80/00 , H01M4/04 , H01M4/13 , H01M4/139 , H01M4/62 , H01M4/66 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01M50/117 , H01M50/183 , H01M50/30 , H01M4/02 , H01M50/112
CPC分类号： H01M10/0585 , B29C64/106 , B33Y80/00 , H01M4/0402 , H01M4/0416 , H01M4/0471 , H01M4/13 , H01M4/139 , H01M4/62 , H01M4/624 , H01M4/625 , H01M4/626 , H01M4/64 , H01M4/661 , H01M4/663 , H01M4/664 , H01M4/666 , H01M10/052 , H01M10/0562 , H01M50/117 , H01M50/183 , H01M50/30 , H01M50/394 , H01M2004/021 , H01M2004/024 , H01M4/043 , H01M50/112 , H01M2300/0068
摘要： An electrochemical cell is provided, which includes a cathode comprising a three dimensional (3D) porous cathode structure, an anode, an electrolyte separator, comprised of a ceramic material, located between the cathode and the anode, and a cathode current collector, wherein the cathode is located between the cathode current collector and the electrolyte separator. The 3D porous cathode structure includes ionically conducting electrolyte strands extending through the cathode from the cathode current collector to the electrolyte separator, pores extending through the cathode from the cathode current collector to the electrolyte separator, and an electronically conducting network extending on sidewall surfaces of the pores from the cathode current collector to the electrolyte separator.

12. 发明授权

US12034119B2 Electrolyte for lithium secondary battery and lithium secondary battery comprising same 有权
公开(公告)号：US12034119B2
公开(公告)日：2024-07-09
申请号：US17260359
申请日：2019-06-18
申请人： SAMSUNG SDI CO., LTD.
发明人： Myungheui Woo , Pavel Shatunov , Olga Tsay , Hyejin Park , Harim Lee , Jin-Hyeok Lim , Wonseok Cho , Hyunbong Choi
IPC分类号： H01M4/13 , C07F7/18 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M4/02
CPC分类号： H01M10/0567 , C07F7/1804 , H01M4/13 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2004/027
摘要： The present disclosure relates to an electrolyte for a lithium secondary battery and a lithium secondary battery comprising same, the electrolyte comprising: a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a negative electrode film forming agent. Formula 1 is as described in the specification. For example, the electrolyte for a lithium secondary battery includes a non-aqueous organic solvent, a lithium salt, and an additive, and the additive includes a compound represented by Chemical Formula 1 and a negative electrode film forming agent. Description of Chemical Formula 1 is as described in the specification.

13. 发明公开

US20240222709A1 SECONDARY BATTERY 审中-公开
公开(公告)号：US20240222709A1
公开(公告)日：2024-07-04
申请号：US18582255
申请日：2024-02-20
申请人： MURATA MANUFACTURING CO., LTD.
发明人： Toshihiro HIRATSUKA
IPC分类号： H01M10/0587 , H01M4/13 , H01M10/0525 , H01M4/02
CPC分类号： H01M10/0587 , H01M4/13 , H01M10/0525 , H01M2004/021 , H01M2004/027 , H01M2004/028
摘要： A secondary battery includes a battery device in which a positive electrode and a negative electrode are stacked on each other with a separator interposed between the positive electrode and the negative electrode and a stack of the positive electrode, the negative electrode, and the separator is wound about a winding axis. A section of the battery device has an elongated shape defined by a major axis and a minor axis. The section intersects the winding axis. The battery device includes a flat region and a curved region. The flat region extends in a direction of the major axis. The curved region is coupled to the flat region and is curved. The positive electrode includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is provided on the positive electrode current collector. The negative electrode includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is provided on the negative electrode current collector and opposed to the positive electrode active material layer. At least the positive electrode active material layer in an innermost wind of the positive electrode of the battery device includes a first part and a second part. The first part includes a positive electrode active material having a first area density. The second part includes a positive electrode active material having a second area density that is lower than the first area density. The second part is provided at least on both a whole of the positive electrode active material layer in the innermost wind in the curved region and the positive electrode active material layer in the innermost wind in a portion, of the flat region, that is in a vicinity of a border between the flat region and the curved region.

14. 发明授权

US12027661B2 Nano-engineered coatings for anode active materials, cathode active materials, and solid-state electrolytes and methods of making batteries containing nano-engineered coatings 有权
公开(公告)号：US12027661B2
公开(公告)日：2024-07-02
申请号：US14727834
申请日：2015-06-01
申请人： Forge Nano Inc.
发明人： Fabio Albano , Kevin Dahlberg , Erik Anderson , Subhash Dhar , Srinivasan Venkatesan
IPC分类号： H01M10/056 , H01M4/13 , H01M4/36 , H01M4/62 , H01M10/0525 , H01M10/0562
CPC分类号： H01M10/056 , H01M4/13 , H01M4/366 , H01M4/628 , H01M10/0525 , H01M10/0562
摘要： The present disclosure relates to a nano-engineered coating for cathode active materials, anode active materials, and solid state electrolyte materials for reducing corrosion and enhancing cycle life of a battery, and various process for applying the disclosed coating.

15. 发明公开

US20240213487A1 CARBON NANOTUBE AND SECONDARY BATTERY 审中-公开
公开(公告)号：US20240213487A1
公开(公告)日：2024-06-27
申请号：US18420729
申请日：2024-01-23
申请人： artience Co., Ltd. , TOYOCOLOR CO., LTD.
发明人： Yu MORITA , Tomoaki MASUOKA
IPC分类号： H01M4/62 , B82Y30/00 , B82Y40/00 , C01B32/174 , H01M4/13 , H01M10/0525
CPC分类号： H01M4/625 , C01B32/174 , H01M4/13 , H01M10/0525 , B82Y30/00 , B82Y40/00 , C01B2202/22 , C01B2202/36 , C01P2002/72 , C01P2002/82
摘要： A carbon nanotube dispersion including a carbon nanotube, a solvent, and a dispersant. A highly conductive electrode membrane can be produced as a result of the carbon nanotube using a carbon nanotube dispersion satisfying (1), (2), and (3). (1) An average outer diameter is more than 3 nm and less than 10 nm. (2) A peak is present in a powder X-ray diffraction analysis at a diffraction angle of 2θ=25°±2°, and a half value width of the peak is 3° to 6°. (3) When a maximum peak intensity within the range of 1,560 to 1,600 cm−1 in a Raman spectrum is G and a maximum peak intensity within the range of 1,310 to 1,350 cm−1 is D, a G/D ratio is 0.5 to 4.5.

16. 发明公开

US20240195032A1 ELECTRODE BODY AND RECHARGEABLE BATTERY 审中-公开
公开(公告)号：US20240195032A1
公开(公告)日：2024-06-13
申请号：US18529809
申请日：2023-12-05
申请人： PRIMEARTH EV ENERGY CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA , PRIME PLANET ENERGY & SOLUTIONS, INC.
发明人： Takashi NAKAZONO
IPC分类号： H01M50/586 , H01M4/13 , H01M10/0525 , H01M50/59
CPC分类号： H01M50/586 , H01M4/13 , H01M10/0525 , H01M50/59 , H01M2004/028
摘要： An electrode body includes a substrate serving as a collector, a mixture layer formed on the substrate and containing an electrode active material, and an insulation layer formed on the substrate adjacent to the mixture layer. The insulation layer contains an insulative material. In an interfacial region of the mixture layer and the insulation layer, the mixture layer extends over and overlaps the insulation layer that covers a surface of the substrate. Further, an interfacial surface of the insulation surface interfacing the mixture layer includes undulations having an undulation width that is greater than a particle size of the electrode active material.

17. 发明授权

US12006229B2 Methods for preparing particles precursor, and particle precursor prepared thereby 有权
公开(公告)号：US12006229B2
公开(公告)日：2024-06-11
申请号：US17043649
申请日：2019-06-11
申请人： Microvast Power Systems Co., LTD.
发明人： Bryan Yonemoto , Xiao Zhang
IPC分类号： H01M4/1391 , B01J4/00 , B01J19/00 , C01G53/00 , C01G53/06 , H01M4/04 , H01M4/13 , H01M4/131 , H01M4/139 , H01M4/525 , H01M4/02 , H01M10/0525
CPC分类号： C01G53/006 , B01J4/008 , B01J19/0086 , C01G53/06 , H01M4/0497 , H01M4/13 , H01M4/131 , H01M4/139 , H01M4/1391 , H01M4/525 , B01J2204/002 , B01J2219/00177 , B01J2219/00186 , C01P2002/52 , C01P2004/03 , C01P2004/84 , C01P2006/40 , H01M2004/028 , H01M10/0525
摘要： The present disclosure provides a method for preparing full-gradient particle precursors, and the full-gradient particle precursor prepared thereby. By controlling different types of anion compositions and/or cation compositions gradually changed to other types, and adjusting the pH to match with the species, precipitated particles are deposited to form a slurry, collecting the precipitated particle, treating with water, and drying to yield the particle precursor. After being washed and dried, the particle precursor is further mixed with lithium source, after calcining to yield cathode active particles. The cathode active particles can be used to prepare cathode of lithium-ion battery.

18. 发明公开

US20240186645A1 POWER STORAGE MODULE 审中-公开
公开(公告)号：US20240186645A1
公开(公告)日：2024-06-06
申请号：US18286248
申请日：2022-01-21
申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
发明人： Yuki OKAMOTO
IPC分类号： H01M50/342 , H01M4/13 , H01M50/184 , H01M50/477
CPC分类号： H01M50/3425 , H01M4/13 , H01M50/184 , H01M50/477
摘要： A power storage module includes a stack formed of electrodes stacked each including a current collector and an active material layer, a seal portion defining internal spaces, communication holes providing communication between the internal spaces and an outside, and a sheet member sealing the communication holes individually and cleaved to release internal pressure in the respective internal spaces. The sheet member has facing portions and a joint portion joined to the seal portion. The respective facing portions have stress concentrating portions. Cleavage pressure, which is the internal pressure applied to corresponding one of the facing portions when one of the stress concentrating portions is cleaved, is lower than peeling pressure, which is the internal pressure applied to corresponding one of the facing portion when the joint portion is peeled off from the seal portion.

19. 发明公开

US20240186591A1 LOW VOLTAGE SACRIFICIAL ELECTRODES 审中-公开
公开(公告)号：US20240186591A1
公开(公告)日：2024-06-06
申请号：US18553463
申请日：2021-12-23
申请人： American Lithium Energy Corporation
发明人： Jiang FAN , Christopher KOMPELLA , Linhua HU
IPC分类号： H01M10/42 , C23F13/00 , H01M4/02 , H01M4/13 , H01M4/66 , H01M4/80 , H01M10/04 , H01M50/103 , H01M50/107
CPC分类号： H01M10/4235 , C23F13/005 , H01M4/13 , H01M4/661 , H01M4/663 , H01M4/80 , H01M10/0431 , H01M50/103 , H01M50/107 , H01M2004/027
摘要： A battery cell may include a positive electrode coupled with a positive current collector and a negative electrode coupled with a negative current collector. The battery cell may further include a sacrificial electrode coupled with the negative electrode but not the positive electrode. The sacrificial electrode may be formed from a first material having a lower decomposition voltage than a second material forming the negative current collector. As such, the sacrificial electrode may decompose instead of the negative current collector while the battery cell is discharged below a minimum voltage of the battery cell. In doing so, the sacrificial electrode may preserve the capacity and cycle life of the battery cell even when the battery cell is discharged to a low-voltage state or a zero-voltage state.

20. 发明公开

US20240178397A1 ALL SOLID STATE BATTERY COMPOSITION 审中-公开
公开(公告)号：US20240178397A1
公开(公告)日：2024-05-30
申请号：US18284365
申请日：2022-03-25
申请人： SEKISUI CHEMICAL CO., LTD.
发明人： Takayuki MAEDA , Yutaro ASABA
IPC分类号： H01M4/62 , H01M4/13
CPC分类号： H01M4/622 , H01M4/13
摘要： The present invention provides an all-solid-state battery composition that is excellent in dispersibility of an active material or an electrolyte and adhesion, can provide a high-strength coating film or molded body, and enables the production of a high-capacity all-solid-state battery with low electrode resistance, and also provides an all-solid-state battery including the all-solid-state battery composition. The present invention relates to an all-solid-state battery composition to be used for an all-solid-state battery, the composition containing: an active material and/or a solid electrolyte; a polyvinyl acetal resin; and an organic solvent, the polyvinyl acetal resin having an average degree of polymerization of 5,000 or greater and 10,000 or less.

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