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公开(公告)号：US20240347735A1
公开(公告)日：2024-10-17
申请号：US18301316
申请日：2023-04-17
发明人： Meng Jiang , Meinan He , Louis G. Hector, JR.
CPC分类号： H01M4/628 , H01M4/0471 , H01M4/049 , H01M2004/028
摘要： Electrodes, electrochemical cells and methods for making electrodes are provided. In one example, an electrode includes an electrode base material. The electrode further includes an oxygen-scavenger material that is disposed on the electrode base material.
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2.发明授权公开(公告)号：US12068472B2
公开(公告)日：2024-08-20
申请号：US17363272
申请日：2021-06-30
申请人： UT-Battelle, LLC
发明人： Ilias Belharouak , Yaocai Bai , Rachid Essehli , Jianlin Li
IPC分类号： H01M10/54 , H01M4/04 , H01M10/0525 , H01M4/505 , H01M4/525
CPC分类号： H01M4/049 , H01M4/0471 , H01M10/0525 , H01M10/54 , H01M4/505 , H01M4/525 , Y02W30/84
摘要： A method for the regeneration of cathode material from spent lithium-ion batteries is provided. The method includes dissolving a lithium precursor in a polyhydric alcohol to form a solution. Degraded cathode material containing lithium metal oxides are dispersed into the solution under mechanical stirring, forming a mixture. The mixture is heat treated within a reactor vessel or microwave oven. During this heat treatment, lithium is intercalated into the degraded cathode material. The relithiated electrode material is collected by filtration, washing with solvents, and drying. The relithiated electrode material is then ground with a lithium precursor and thermally treated at a relatively low temperature for a predetermined time period to obtain regenerated cathode material.
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3.发明公开公开(公告)号：US20240250237A1
公开(公告)日：2024-07-25
申请号：US18625418
申请日：2024-04-03
发明人： Tatsuya IKENUMA , Yumiko YONEDA
IPC分类号： H01M4/133 , C01B32/184 , H01M4/04 , H01M4/1393 , H01M4/587 , H01M4/62
CPC分类号： H01M4/133 , C01B32/184 , H01M4/0416 , H01M4/049 , H01M4/1393 , H01M4/587 , H01M4/625 , Y02E60/10 , Y02E60/13
摘要： To provide graphene oxide that has high dispersibility and is easily reduced. To provide graphene with high electron conductivity. To provide a storage battery electrode including an active material layer with high electric conductivity and a manufacturing method thereof. To provide a storage battery with increased discharge capacity. A method for manufacturing a storage battery electrode that is to be provided includes a step of dispersing graphene oxide into a solution containing alcohol or acid, a step of heating the graphene oxide dispersed into the solution, and a step or reducing the graphene oxide.
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公开(公告)号：US12034144B2
公开(公告)日：2024-07-09
申请号：US17486378
申请日：2021-09-27
CPC分类号： H01M4/049 , H01M2004/027
摘要： A method for forming a prelithiated, layered anode material includes contacting an ionic compound and a lithium precursor in an environment having a temperature ranging from about 200° C. to about 900° C. The ionic compound is a three-dimensional layered material represented by MX2, where M is one of calcium (Ca) and magnesium (Mg) and X is one of silicon (Si), germanium (Ge), and boron (B). The lithium precursor is selected from the group consisting of: LiH, LiC, LiOH, LiCl, and combinations thereof. The contacting of the ionic compound and the lithium precursor in the environment causes removal of cations from the ionic compound to create openings in interlayer spaces or voids in the three-dimensional layered material thereby defining a two-dimensional layered material and also causes introduction of lithium ions from the lithium precursor into the interlayer spaces or voids to form the prelithiated, layered anode material.
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公开(公告)号：US11996551B2
公开(公告)日：2024-05-28
申请号：US17329356
申请日：2021-05-25
发明人： Sheng Heng Chung
CPC分类号： H01M4/366 , C23C18/1889 , C23C18/36 , H01M4/049 , H01M4/38 , H01M2004/021 , H01M2004/028
摘要： A method for the fabrication of an electroless-metal-plated sulfur nanocomposite, an electroless-metal-plated sulfur cathode which is made from the nanocomposite, and a battery that uses the cathode, where the method includes chemically plating a conductive metal nanoshell onto the surface of the insulating sulfur powder to improve the conductivity of the sulfur cathode material, where through enhancing the electrochemical reaction kinetics with metal catalysis capabilities, and performing physical and chemical adsorption of liquid polysulfides with metal activity, the electroless-metal-plated sulfur nanocomposite enables the battery to exhibit high electrochemical utilization and stable cyclability, such that the nanocomposite can achieve a high sulfur content and high metal content, and the cathode demonstrates a high sulfur loading with a low electrolyte-to-sulfur ratio, the lithium-sulfur battery with the cathode exhibiting a high discharge capacity along with high energy density, and maintaining stable and high reversible capacity after 200 cycles within a wide range of cycling rates.
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公开(公告)号：US11942618B2
公开(公告)日：2024-03-26
申请号：US17410797
申请日：2021-08-24
发明人： Sourav Basu , Jonathan Tan
IPC分类号： B05C5/00 , B05C3/00 , B05C9/00 , C23C18/16 , H01M4/04 , H01M4/139 , H01M6/00 , H01M10/0525 , B05D1/02 , B05D1/18 , B05D1/26 , B05D1/28 , B05D1/38 , H01M4/36 , H01M4/38 , H01M10/04 , H01M10/0587
CPC分类号： H01M4/0402 , B05C5/00 , B05C9/00 , H01M4/049 , H01M4/139 , H01M6/005 , H01M10/0525 , B05C3/00 , B05D1/02 , B05D1/18 , B05D1/26 , B05D1/28 , B05D1/38 , C23C18/1655 , H01M4/36 , H01M4/362 , H01M4/38 , H01M10/0409 , H01M10/0587
摘要： Methods, systems, and compositions for the liquid-phase deposition (LPD) of thin films. The thin films can be coated onto the surface of porous components of electrochemical devices, such as battery electrodes. Embodiments of the present disclosure achieve a faster, safer, and more cost-effective means for forming uniform, conformal layers on non-planar microstructures than known methods. In one aspect, the methods and systems involve exposing the component to be coated to different liquid reagents in sequential processing steps, with optional intervening rinsing and drying steps. Processing may occur in a single reaction chamber or multiple reaction chambers.
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公开(公告)号：US11870055B2
公开(公告)日：2024-01-09
申请号：US17161333
申请日：2021-01-28
申请人： Enevate Corporation
CPC分类号： H01M4/134 , H01M4/044 , H01M4/049 , H01M4/366 , H01M2004/027
摘要： The present application describes the use of a solid electrolyte interphase (SEI) fluorinating precursor and/or an SEI fluorinating compound to coat an electrode material and create an artificial SEI layer. These modifications may increase surface passivation of the electrodes, SEI robustness, and structural stability of the silicon-containing electrodes.
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公开(公告)号：US20230369573A1
公开(公告)日：2023-11-16
申请号：US18304183
申请日：2023-04-20
申请人： KRATOS LLC
IPC分类号： H01M4/36 , H01M4/38 , H01M4/04 , H01M4/134 , H01M4/62 , H01M10/0525 , H01L31/0264 , H01L31/0352 , H01M10/052 , H01M4/02 , H01M10/0569
CPC分类号： H01M4/366 , H01M4/386 , H01M4/049 , H01M4/134 , H01M4/62 , H01M4/38 , H01M4/387 , H01M10/0525 , H01L31/0264 , H01L31/0352 , H01M10/052 , Y02E60/10 , Y02P70/50 , H01M2004/027 , H01M10/0569
摘要： Disclosed are functionalized Group IVA particles, methods of preparing the Group IVA particles, and methods of using the Group IVA particles. The Group IVA particles may be passivated with at least one layer of material covering at least a portion of the particle. The layer of material may be a covalently bonded non-dielectric layer of material. The Group IVA particles may be used in various technologies, including lithium ion batteries and photovoltaic cells.
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公开(公告)号：US11670774B2
公开(公告)日：2023-06-06
申请号：US16650606
申请日：2018-09-04
申请人： Beijing HiNa Battery Technology Co., Ltd. , Institute of Physics, The Chinese Academy of Sciences
发明人： Yaxiang Lu , Yongsheng Hu , Kun Tang , Hong Li , Xuejie Huang , Liquan Chen
IPC分类号： H01M4/04 , H01M4/133 , H01M4/1393 , H01M10/054 , H01M4/583 , H01M4/02 , H01M4/587
CPC分类号： H01M4/583 , H01M4/0442 , H01M4/133 , H01M4/1393 , H01M10/054 , H01M4/049 , H01M4/0471 , H01M4/587 , H01M2004/027
摘要： Embodiments of the present disclosure are a pitch-based negative electrode material for a sodium-ion battery and related methods and applications. The method comprises: placing a pitch recursor into a muffle furnace to allow the pitch precursor to experience pre-oxidation for 2 to 6 hours at a temperature ranging from 200° C. to 350° C., to obtain pre-oxidized pitch; placing the pre-oxidized pitch into a high-temperature carbonization furnace, and increasing the temperature to 1300° C. to 1600° C. at a temperature increase speed of 0.5° C./min to 5° C./min, and carrying out thermal treatment on the pre-oxidized pitch in an inert atmosphere for 1 to 10 hours, to allow the pre-oxidized pitch to experience carbonization reactions, oxygen in the pre-oxidized pitch being used for breaking an ordered structure of the pitch during the carbonization of the pre-oxidized pitch, so as to form a wedge-shaped voids disordered structure.
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10.发明申请公开(公告)号：US20180315993A1
公开(公告)日：2018-11-01
申请号：US16025069
申请日：2018-07-02
发明人： Mikio YUKAWA
IPC分类号： H01M4/04 , H01M4/58 , H01M4/36 , H01M10/0525 , H01M4/62 , H01M4/1397 , H01M4/139 , H01M4/136 , H01M4/13 , H01M4/64
CPC分类号： H01M4/0404 , H01M4/0416 , H01M4/043 , H01M4/0435 , H01M4/0471 , H01M4/049 , H01M4/13 , H01M4/136 , H01M4/139 , H01M4/1397 , H01M4/366 , H01M4/5805 , H01M4/5825 , H01M4/62 , H01M4/625 , H01M4/64 , H01M10/0525 , H01M2220/30 , Y02E60/122 , Y02P70/54
摘要： To provide a method for forming a storage battery electrode including an active material layer with high density in which the proportion of conductive additive is low and the proportion of the active material is high. To provide a storage battery having a higher capacity per unit volume of an electrode with the use of a storage battery electrode formed by the formation method. A method for forming a storage battery electrode includes the steps of forming a mixture including an active material, graphene oxide, and a binder; providing a mixture over a current collector; and immersing the mixture provided over the current collector in a polar solvent containing a reducer, so that the graphene oxide is reduced.
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