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公开(公告)号：US20240021780A1
公开(公告)日：2024-01-18
申请号：US18373809
申请日：2023-09-27
Applicant: Enovix Corporation
Inventor： Harrold J. Rust, III , Murali S. Ramasubramanian , Ashok Lahiri , Bruno A. Valdes , Jeffrey Glenn Buck , Kim Lester Fortunati , Robert S. Busacca , John F. Varni , Joshua David Winans , Neal Sarswat , Gunther A. Koblmiller , Miles E. Beaven , Jeffery A. Moss , Michael T. Andres
CPC classification number: H01M4/0469 , H01M4/139
Abstract: A process for delineating a population of electrode structures in a web includes laser ablating the web to form ablations in the web, each ablation being formed by removing a portion of an electrochemically active layer to thereby expose a portion of an electrically conductive layer. The process includes forming alignment features in the web that are formed at predetermined locations on the web. The process also includes laser machining the web to form weakened tear patterns in the web that delineate members of the electrode structure population, each of the delineated members being individually bounded, at least in part, by a member of the weakened tear patterns that is adapted to facilitate separation of delineated members, individually, from the web by an application of a force, the alignment features being used to aid in the formation of the weakened tear patterns.
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公开(公告)号：US20240018005A1
公开(公告)日：2024-01-18
申请号：US18223381
申请日：2023-07-18
Applicant: Plasma App Ltd.
Inventor： Dmitry YARMOLICH , Denis YARMOLICH , Ramachandran Vasant KUMAR , Rumen TOMOV , Hyun-Kyung KIM , Teng ZHAO
CPC classification number: C01B32/22 , C23C14/0605 , C23C14/3485 , H01M4/583 , H01M4/661 , H01M4/139 , C25B11/043 , C01P2006/40 , C01P2004/64 , C01P2006/12
Abstract: There is described a carbon material comprising sp2 and sp3 hybridised carbon. Also described is a method of making a carbon material the method comprising: exposing a substrate to a flux of at least 1011 carbon ions per cm2 of substrate per 1 ms, a majority of the carbon ions having a kinetic energy of at least 10 eV. Further, electrodes comprising the carbon material are described. The electrodes may operate as an anode in Li ion battery characterised with improved specific capacity and operation life-time.
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63.发明授权公开(公告)号：US11876168B2
公开(公告)日：2024-01-16
申请号：US17369058
申请日：2021-07-07
Applicant: NORTHWESTERN UNIVERSITY
Inventor： Mark C. Hersam , Kan-Sheng Chen , Ethan B. Secor
IPC: H01M10/0525 , H01M4/505 , H01M4/04 , H01M4/1393 , H01M4/131 , H01M4/134 , H01M4/62 , H01M4/139 , H01M4/136 , H01M4/133 , H01M4/02
CPC classification number: H01M10/0525 , H01M4/0416 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/139 , H01M4/1393 , H01M4/505 , H01M4/625 , H01M2004/027 , H01M2004/028
Abstract: Composites comprising anode and cathode active materials conformally coupled to few-layered graphene, corresponding electrodes and related methods of preparation.
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公开(公告)号：US11870044B2
公开(公告)日：2024-01-09
申请号：US17514004
申请日：2021-10-29
Applicant: Alliance for Sustainable Energy, LLC
Inventor： Kandler Alan Smith , Shriram Santhanagopalan , Nathaniel Alexander Sunderlin , Andrew Michael Colclasure , Chunmei Ban , Xuemin Li , Judy C. Netter , Donal Patrick Finegan , Kaitlin Elizabeth Fink , Jaclyn Elizabeth Coyle
IPC: H01M10/54 , H01M10/0525 , H01M4/04 , H01M4/139 , H01M10/0587 , H01M4/86
CPC classification number: H01M10/54 , H01M4/049 , H01M4/139 , H01M10/0525 , H01M10/0587 , H01M2004/8689
Abstract: Among other things, the present disclosure relates to re-purposing used lithium-ion batteries. The present disclosure includes treating an electrode using a solvent prior to electrochemically relithiating the electrode. In some embodiments, the relithiation may be done using a roll-to-roll device, wherein the electrode may be secured on a first pin and a second pin, then it may be unwound and submerged in an electrolyte solution. Lithium ions may be inserted into the electrode using a voltage. The layer of lithium may provide lithium ions to the electrode.
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公开(公告)号：US20240006585A1
公开(公告)日：2024-01-04
申请号：US18467910
申请日：2023-09-15
Applicant: Ningde Amperex Technology Limited
IPC: H01M4/139 , H01M4/70 , H01M50/595 , H01M50/586 , H01M4/04
CPC classification number: H01M4/139 , H01M4/70 , H01M50/595 , H01M50/586 , H01M4/04 , H01M2004/021
Abstract: An electrode plate includes a current collector and membranes disposed on a surface of the current collector, where at least one of the membranes is provided with a tab slot, the tab slot is apart from an edge of the electrode plate along a width direction, and the tab slot exposes the surface of the current collector; the membrane provided with the tab slot is provided with a notch connecting to the tab slot on a side, where the notch runs through the current collector along a direction perpendicular to the membrane, and the notch has an arc-shaped surface. The risk of a short circuit in the electrode assembly having the electrode plate can be decreased and safety performance of the battery can be improved.
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Patent Agency Ranking
66.发明公开公开(公告)号：US20230420642A1
公开(公告)日：2023-12-28
申请号：US18338348
申请日：2023-06-21
Applicant: SK On Co., Ltd. , SK INNOVATION CO., LTD.
Inventor： Eun Jun PARK , Gwi Ok PARK , Hyo Shik KIL , In Ae LEE
IPC: H01M4/134 , H01M10/052 , H01M4/139
CPC classification number: H01M4/134 , H01M10/052 , H01M4/139 , H01M2004/027
Abstract: Provided are a negative electrode for a lithium secondary battery and a method of manufacturing the same. The negative electrode for a lithium secondary battery according to an embodiment of the present invention includes a silicon-based negative electrode active material including iron and aluminum, wherein in ICP analysis of a negative electrode active material layer including the silicon-based negative electrode active material, contents of elements in the negative electrode active material layer satisfy the following Relations (1) to (3):
A/(B2+C2)≤4,500 (1)
5≤B≤1,500 (2)
3≤C≤1,000 (3)
wherein A is a Li content in ppm, B is an Fe content in ppm, and C is an Al content in ppm, based on the total weight of the ICP-analyzed negative electrode active material layer.-
公开(公告)号：US20230420635A1
公开(公告)日：2023-12-28
申请号：US18243331
申请日：2023-09-07
Applicant: MURATA MANUFACTURING CO., LTD.
Inventor： Makiko OIKAWA , Kazuhiko MORIZAWA , Hiroshi KUBOTA
CPC classification number: H01M4/0435 , B30B3/04 , H01M4/139 , H01M10/0525 , B29C43/00 , B32B15/00
Abstract: A roll press device is provided and includes a pair of press rolls; and an auxiliary roll that is disposed on at least one of upstream and downstream of the pair of press rolls, wherein the roll press device is configured to press a laminate structure by allowing the laminate structure to pass between the pair of press rolls, and wherein a laminate structure contact surface of the auxiliary roll is positioned above or below a virtual plane that the laminate structure includes when the laminate structure passes between the pair of press rolls.
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公开(公告)号：US11824183B2
公开(公告)日：2023-11-21
申请号：US17077844
申请日：2020-10-22
Applicant: DEMARAY, LLC
Inventor： R. Ernest Demaray , James Kaschmitter , Pavel Khokhlov
IPC: H01M4/13 , H01M4/04 , H01M4/36 , H01M10/42 , H01M4/66 , H01M10/0585 , H01M10/052 , H01M4/139 , C01G23/00 , H01M4/64 , H01M10/04
CPC classification number: H01M4/0423 , C01G23/00 , H01M4/0404 , H01M4/13 , H01M4/139 , H01M4/366 , H01M4/64 , H01M4/667 , H01M10/052 , H01M10/0585 , H01M10/4235 , H01M10/0436
Abstract: Embodiments of the present invention are in the field of materials, apparatus, process, methods, and designs for manufacture of a thin film energy storage devices with a capacity greater then 1 mA-hr-cm−2 including thin film Lithium metal and Li+ ion batteries and capacitors having high energy density and high cycle life due to the incorporation of at least one vacuum thin film with respect to protection and electrical conductivity of the electrodes, and at least one vacuum thin film electrolyte for electrical insulation of the electrodes and ion conduction after assembly for low self discharge and high cycle life battery cells.
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公开(公告)号：US11811067B2
公开(公告)日：2023-11-07
申请号：US17654511
申请日：2022-03-11
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masakazu Umehara
IPC: H01L31/00 , H01M4/62 , H01M4/1391 , H01M4/04 , H01M4/131 , H01M10/42 , H01M4/139 , H01M10/0587 , H01M4/02 , H01M10/0525
CPC classification number: H01M4/628 , H01M4/043 , H01M4/0404 , H01M4/131 , H01M4/139 , H01M4/1391 , H01M10/0587 , H01M10/4235 , H01M10/0525 , H01M2004/021 , H01M2004/028
Abstract: A strip-shaped electrode sheet includes an electrode foil including a strip-shaped foil exposed portion in which the electrode foil is exposed, a strip-shaped active material layer extending in a longitudinal direction, and a strip-shaped insulator layer containing insulating resin and formed on an insulator-layer support portion along a one-side layer edge portion of the active material layer and between the foil exposed portion of the electrode foil and an active-material-layer support portion. The insulator layer is located lower than a top face of the active material layer toward the electrode foil and includes a slant coating portion covering at least a lower portion of a one-side slant portion of the active material layer and a foil coating portion extending from the slant coating portion in a width-direction one side and covering the insulator-layer support portion of the electrode foil.
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公开(公告)号：US11799080B2
公开(公告)日：2023-10-24
申请号：US16611791
申请日：2018-05-11
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Mayumi Mikami , Aya Uchida , Yumiko Yoneda , Yohei Momma , Masahiro Takahashi , Teruaki Ochiai
IPC: H01B1/08 , H01M4/525 , C01G53/00 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/36 , H01M4/505 , H01M6/16 , H01M10/0525 , H01M4/139 , H01M4/02
CPC classification number: H01M4/525 , C01G53/50 , H01B1/08 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/139 , H01M4/366 , H01M4/505 , H01M6/164 , H01M10/0525 , C01P2002/74 , H01M2004/028
Abstract: A positive electrode active material having high capacity and excellent cycle performance is provided. The positive electrode active material has a small difference in a crystal structure between the charged state and the discharged state. For example, the crystal structure and volume of the positive electrode active material, which has a layered rock-salt crystal structure in the discharged state and a pseudo-spinel crystal structure in the charged state at a high voltage of approximately 4.6 V, are less likely to be changed by charge and discharge as compared with those of a known positive electrode active material.
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