利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.028 秒)

    LITHIUM-BASED ANODE WITH IONIC LIQUID POLYMER GEL
    2.
    发明申请
    LITHIUM-BASED ANODE WITH IONIC LIQUID POLYMER GEL 审中-公开
    具有离子液体聚合物凝胶的基于锂的阳极

    公开(公告)号：US20120082901A1

    公开(公告)日：2012-04-05

    申请号：US13249632

    申请日：2011-09-30

    申请人： Rudiger Schmidt ,  Daher Michael Badine ,  Helmut Moehwald ,  Igor Kovalev ,  Yuriy V. Mikhaylik

    发明人： Rudiger Schmidt ,  Daher Michael Badine ,  Helmut Moehwald ,  Igor Kovalev ,  Yuriy V. Mikhaylik

    IPC分类号： H01M10/056 ,  H01M4/38 ,  H01M4/04 ,  H01M4/48 ,  H01M4/485 ,  H01M4/58 ,  H01M4/62 ,  H01M4/40

    CPC分类号： H01M10/0525 ,  H01M4/133 ,  H01M4/134 ,  H01M10/052 ,  H01M10/0563 ,  H01M2300/0045

    摘要： Li-based anodes for use in an electric current producing cells having long life time and high capacity are provided. In certain embodiments, the Li-based anode comprises at least one anode active Li-containing compound and a composition comprising at least one polymer, at least one ionic liquid, and optionally at least one lithium salt. The composition may be located between the at least one Li-containing compound and the catholyte used in the electric current producing cell. In some embodiments, the at least one polymer may be incompatible with the catholyte. This configuration of components may lead to separation between the lithium active material of the anode and the catholyte. Processes for preparing the Li-based anode and to electric current producing cells comprising such an anode are also provided.

    摘要翻译： 提供了用于具有长寿命和高容量的电流产生电池的基于锂的阳极。 在某些实施方案中，Li基阳极包含至少一种含阳极活性Li的化合物和包含至少一种聚合物，至少一种离子液体和任选的至少一种锂盐的组合物。 组合物可以位于至少一种含Li化合物和在电流产生电池中使用的阴极电解液之间。 在一些实施方案中，至少一种聚合物可能与阴极电解液不相容。 组分的这种配置可能导致阳极的锂活性材料与阴极电解液之间的分离。 还提供了用于制备Li基阳极和包括这种阳极的电流产生单元的方法。

    ELECTROLYTE MATERIALS FOR USE IN ELECTROCHEMICAL CELLS
    3.
    发明申请
    ELECTROLYTE MATERIALS FOR USE IN ELECTROCHEMICAL CELLS 审中-公开
    用于电化学电池的电解质材料

    公开(公告)号：US20120052339A1

    公开(公告)日：2012-03-01

    申请号：US13216579

    申请日：2011-08-24

    申请人： Yuriy V. Mikhaylik ,  Igor Kovalev ,  Helmut Moehwald ,  Rudiger Schmidt

    发明人： Yuriy V. Mikhaylik ,  Igor Kovalev ,  Helmut Moehwald ,  Rudiger Schmidt

    IPC分类号： H01M10/0565 ,  H01M4/38 ,  H01M4/40 ,  B05D3/06 ,  H01M10/056 ,  B05D5/12 ,  B32B38/10 ,  H01M10/052 ,  H01M4/60

    CPC分类号： H01M4/581 ,  H01M2/145 ,  H01M2/1673 ,  H01M4/134 ,  H01M4/366 ,  H01M4/382 ,  H01M4/405 ,  H01M4/5815 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037

    摘要： Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries. The electrolyte can comprise a polymeric material and, in some cases, an absorbed auxiliary material. For example, the electrolyte material can be capable of forming a gel, and the auxiliary material can comprise an electrolyte solvent. In some instances, the electrolyte material can comprise at least one organic (co)polymer selected from polyethersulfones. The non-fluid material in the electrolyte, when configured for use, can, alone or in combination with the optional absorbed auxiliary material, have a yield strength greater than that of lithium metal, in some embodiments. In some embodiments, the electrochemical cell (e.g., the electrolyte) can be configured such that the electrochemical cell can be cycled at relatively high temperatures without experiencing thermal runaway.

    摘要翻译： 通常描述用于电化学电池的电解质材料，包含它们的电化学电池以及制备这种材料和电池的方法。 在一些实施方案中，本文所述的材料，方法和用途涉及包含硫和锂的电化学电池，例如锂硫电池。 电解质可以包括聚合物材料，并且在一些情况下可以包含吸收的辅助材料。 例如，电解质材料能够形成凝胶，辅助材料可以包含电解质溶剂。 在一些情况下，电解质材料可以包含至少一种选自聚醚砜的有机（共）聚合物。 在一些实施例中，电解质中的非流体材料构造成使用时，可单独使用或与任选的吸收辅助材料组合，其屈服强度大于锂金属的屈服强度。 在一些实施例中，电化学电池（例如，电解质）可以被配置为使得电化学电池可以在相对较高的温度下循环，而不会发生热失控。

    Application of force in electrochemical cells
    5.
    发明授权
    Application of force in electrochemical cells 有权
    力在电化学电池中的应用

    公开(公告)号：US09105938B2

    公开(公告)日：2015-08-11

    申请号：US12535328

    申请日：2009-08-04

    申请人： Chariclea Scordilis-Kelley ,  John D. Affinito ,  Lowell D. Jones ,  Yuriy V. Mikhaylik ,  Igor Kovalev ,  William F. Wilkening ,  Christopher T. S. Campbell ,  John A. Martens

    发明人： Chariclea Scordilis-Kelley ,  John D. Affinito ,  Lowell D. Jones ,  Yuriy V. Mikhaylik ,  Igor Kovalev ,  William F. Wilkening ,  Christopher T. S. Campbell ,  John A. Martens

    IPC分类号： H01M2/02 ,  H01M2/16 ,  H01M4/58 ,  H01M4/40 ,  H01M10/42 ,  H01M10/052 ,  H01M10/04 ,  H01M10/058 ,  H01M4/13

    CPC分类号： H01M10/052 ,  H01M4/13 ,  H01M4/133 ,  H01M4/136 ,  H01M4/40 ,  H01M4/581 ,  H01M4/587 ,  H01M10/0468 ,  H01M10/0481 ,  H01M10/0525 ,  H01M10/058 ,  Y02E60/122

    摘要： 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. The application of force to the electrochemical cell has been found, in accordance with the invention, to reduce such behavior and to improve the cycling lifetime and/or performance of the cell.

    摘要翻译： 本发明涉及一种用于增强电化学电池性能的力的应用。 在一些情况下，力可以包括垂直于电化学电池的阳极的活性表面的成分的各向异性力。 在本文所述的实施例中，电化学电池（例如，可再充电电池）可以经历充电/放电循环，该充电/放电循环包括在阳极表面上充电和反应金属时在金属表面上沉积金属（例如锂金属），其中 在放电时，金属从阳极表面扩散。 金属沉积在阳极上的均匀性可能影响电池性能。 例如，当将锂金属重新沉积在阳极上时，在某些情况下，可能不均匀地沉积形成粗糙表面。 粗糙表面可能增加可用于不期望的化学反应的锂金属的量，这可能导致循环寿命降低和/或不良的电池性能。 已经发现根据本发明，向电化学电池施加力以减少这种行为并改善电池的循环寿命和/或性能。

    Separation of electrolytes
    6.
    发明授权
    Separation of electrolytes 有权
    分离电解质

    公开(公告)号：US08617748B2

    公开(公告)日：2013-12-31

    申请号：US12312764

    申请日：2007-12-04

    申请人： Yuriy V. Mikhaylik ,  Chariclea Scordilis-Kelley ,  Igor Kovalev ,  Cathie Burgess

    发明人： Yuriy V. Mikhaylik ,  Chariclea Scordilis-Kelley ,  Igor Kovalev ,  Cathie Burgess

    IPC分类号： H01M10/40

    CPC分类号： H01M10/0569 ,  H01M2/1653 ,  H01M4/134 ,  H01M4/136 ,  H01M4/1395 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0566 ,  H01M2300/0085 ,  H01M2300/0094 ,  H02J7/0068 ,  Y10T29/49115

    摘要： Methods and articles relating to separation of electrolyte compositions within lithium batteries are provided. The lithium batteries described herein may include an anode having lithium as the active anode species and a cathode having sulfur as the active cathode species. Suitable electrolytes for the lithium batteries can comprise a heterogeneous electrolyte including a first electrolyte solvent (e.g., dioxolane (DOL)) that partitions towards the anode and is favorable towards the anode (referred to herein as an “anode-side electrolyte solvent”) and a second electrolyte solvent (e.g., 1,2-dimethoxyethane (DME)) that partitions towards the cathode and is favorable towards the cathode (and referred to herein as an “cathode-side electrolyte solvent”). By separating the electrolyte solvents during operation of the battery such that the anode-side electrolyte solvent is present disproportionately at the anode and the cathode-side electrolyte solvent is present disproportionately at the cathode, the battery can benefit from desirable characteristics of both electrolyte solvents (e.g., relatively low lithium reactivity of the anode-side electrolyte solvent and relatively high polysulfide solubility of the cathode-side electrolyte solvent).

    摘要翻译： 提供了关于在锂电池中分离电解质组合物的方法和制品。 本文所述的锂电池可以包括具有锂作为活性阳极物质的阳极和具有硫作为活性阴极物质的阴极。 用于锂电池的合适的电解质可以包括非均相电解质，其包括朝向阳极分隔并且有利于阳极的第一电解质溶剂（例如二氧戊环（DOL）），并且有利于阳极（本文称为“阳极侧电解质溶剂”）， 第二电解质溶剂（例如，1,2-二甲氧基乙烷（DME）），其朝向阴极分隔并且有利于阴极（并且在本文中称为“阴极侧电解质溶剂”）。 通过在电池操作期间分离电解质溶剂使得阳极侧电解质溶剂在阳极处不成比例地存在，并且阴极侧电解质溶剂在阴极处不成比例地存在，电池可以受益于两种电解质溶剂的期望特性（ 例如阳极侧电解质溶剂的锂反应性相对较低，阴极侧电解质溶剂的多硫化物溶解度相对较高）。

    ELECTROLYTE ADDITIVES FOR LITHIUM BATTERIES AND RELATED METHODS
    7.
    发明申请
    ELECTROLYTE ADDITIVES FOR LITHIUM BATTERIES AND RELATED METHODS 审中-公开
    锂电池用电解质添加剂及相关方法

    公开(公告)号：US20110006738A1

    公开(公告)日：2011-01-13

    申请号：US12679371

    申请日：2008-09-19

    申请人： Yuriy V. Mikhaylik ,  Igor Kovalev

    发明人： Yuriy V. Mikhaylik ,  Igor Kovalev

    IPC分类号： H01M10/056 ,  H01M10/058 ,  H01M4/58 ,  H02J7/00

    CPC分类号： H01M10/0567 ,  H01M4/134 ,  H01M4/581 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/44 ,  H01M2010/4292 ,  Y10T29/49108

    摘要： The present invention relates generally to electrochemical cells, and more specifically, to additives for electrochemical cells which may enhance the performance of the cell. In some cases, the additive may advantageously reduce or prevent formation of impurities and/or depletion of active components of the cell during operation, to increase the efficiency and/or lifetime of the cell. The incorporation of certain additives within the electrolyte of the cell may improve the cycling lifetime and/or performance of the cell.

    摘要翻译： 本发明一般涉及电化学电池，更具体地说，涉及可增强电池性能的电化学电池用添加剂。 在一些情况下，添加剂可以有利地在操作期间减少或阻止杂质的形成和/或细胞活性成分的消耗，以增加细胞的效率和/或寿命。 某些添加剂在电池的电解质中的引入可以改善电池的循环寿命和/或性能。