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    Interconnected hollow nanostructures containing high capacity active materials for use in rechargeable batteries
    11.
    发明授权
    Interconnected hollow nanostructures containing high capacity active materials for use in rechargeable batteries 有权
    包含用于可充电电池的高容量活性材料的互连中空纳米结构

    公开(公告)号：US08450012B2

    公开(公告)日：2013-05-28

    申请号：US12787138

    申请日：2010-05-25

    申请人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness

    发明人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness

    IPC分类号： H01M5/58 ,  H01M4/90 ,  H01M4/583

    CPC分类号： H01M4/70 ,  B82Y30/00 ,  B82Y40/00 ,  H01M4/04 ,  H01M4/0402 ,  H01M4/043 ,  H01M4/0438 ,  H01M4/0471 ,  H01M4/049 ,  H01M4/0492 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/022 ,  H01M2004/027 ,  Y02E60/122

    摘要： Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials, such as silicon, tin, and germanium. In certain embodiments, a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery cycling. This design helps to reduce the risk of pulverization and to maintain electrical contacts among the nanostructures. It also provides a very high surface area available ionic communication with the electrolyte. The nanostructures have nanoscale shells but may be substantially larger in other dimensions. Nanostructures can be interconnected during forming the nanoscale coating, when the coating formed around two nearby template structures overlap.

    摘要翻译： 提供了用于可再充电电池的电极层，例如锂离子电池以及相关制造技术。 这些电极层具有互连的中空纳米结构，其包含高容量的电化学活性材料，例如硅，锡和锗。 在某些实施例中，制造技术包括围绕多个模板结构形成纳米级涂层，并且至少部分地去除和/或收缩这些结构以形成中空腔。 这些空穴为纳米结构的活性材料在电池循环过程中提供空间。 该设计有助于降低粉碎的风险并保持纳米结构之间的电接触。 它还提供了与电解质的非常高的表面积可用的离子连通。 纳米结构具有纳米尺寸的壳，但在其它尺寸上可能显着更大。 当形成纳米尺度涂层时，当围绕两个附近的模板结构形成的涂层重叠时，纳米结构可以相互连接。

    PRELOADING LITHIUM ION CELL COMPONENTS WITH LITHIUM
    12.
    发明申请
    PRELOADING LITHIUM ION CELL COMPONENTS WITH LITHIUM 有权
    推荐锂离子电池组件

    公开(公告)号：US20110111304A1

    公开(公告)日：2011-05-12

    申请号：US12944593

    申请日：2010-11-11

    申请人： Yi Cui ,  Song Han ,  Mark C. Platshon

    发明人： Yi Cui ,  Song Han ,  Mark C. Platshon

    IPC分类号： H01M4/38 ,  H01M4/583 ,  H01M4/26

    CPC分类号： H01M4/366 ,  H01M4/0421 ,  H01M4/0438 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/70 ,  H01M4/75 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2004/025 ,  H01M2220/30 ,  Y10T29/49115

    摘要： Provided are novel negative electrodes for use in lithium ion cells. The negative electrodes include one or more high capacity active materials, such as silicon, tin, and germanium, and a lithium containing material prior to the first cycle of the cell. In other words, the cells are fabricated with some, but not all, lithium present on the negative electrode. This additional lithium may be used to mitigate lithium losses, for example, due to Solid Electrolyte Interphase (SEI) layer formation, to maintain the negative electrode in a partially charged state at the end of the cell discharge cycle, and other reasons. In certain embodiments, a negative electrode includes between about 5% and 25% of lithium based on a theoretical capacity of the negative active material. In the same or other embodiments, a total amount of lithium available in the cell exceeds the theoretical capacity of the negative electrode active material.

    摘要翻译： 提供用于锂离子电池的新型负极。 负极包括一种或多种高容量活性物质，例如硅，锡和锗，以及在电池的第一循环之前的含锂材料。 换句话说，电池制造有一些而不是全部锂存在于负电极上。 这种额外的锂可以用于减轻锂损失，例如，由于固体电解质相（SEI）层形成，以在电池放电循环结束时将负极维持在部分充电状态，以及其它原因。 在某些实施方案中，基于负极活性材料的理论容量，负极包括约5％至25％的锂。 在相同或其它实施方案中，电池中可用的锂的总量超过负极活性材料的理论容量。

    INTERCONNECTED HOLLOW NANOSTRUCTURES CONTAINING HIGH CAPACITY ACTIVE MATERIALS FOR USE IN RECHARGEABLE BATTERIES
    14.
    发明申请
    INTERCONNECTED HOLLOW NANOSTRUCTURES CONTAINING HIGH CAPACITY ACTIVE MATERIALS FOR USE IN RECHARGEABLE BATTERIES 有权
    包含高容量活性材料的互连中空纳米结构用于可充电电池

    公开(公告)号：US20100330423A1

    公开(公告)日：2010-12-30

    申请号：US12787138

    申请日：2010-05-25

    申请人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness

    发明人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness

    IPC分类号： H01M4/58 ,  H01M4/90 ,  H01M4/02 ,  H01M4/583 ,  H01M4/04

    CPC分类号： H01M4/70 ,  B82Y30/00 ,  B82Y40/00 ,  H01M4/04 ,  H01M4/0402 ,  H01M4/043 ,  H01M4/0438 ,  H01M4/0471 ,  H01M4/049 ,  H01M4/0492 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/022 ,  H01M2004/027 ,  Y02E60/122

    摘要： Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials, such as silicon, tin, and germanium. In certain embodiments, a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery cycling. This design helps to reduce the risk of pulverization and to maintain electrical contacts among the nanostructures. It also provides a very high surface area available ionic communication with the electrolyte. The nanostructures have nanoscale shells but may be substantially larger in other dimensions. Nanostructures can be interconnected during forming the nanoscale coating, when the coating formed around two nearby template structures overlap.

    摘要翻译： 提供了用于可再充电电池的电极层，例如锂离子电池以及相关制造技术。 这些电极层具有互连的中空纳米结构，其包含高容量的电化学活性材料，例如硅，锡和锗。 在某些实施例中，制造技术包括围绕多个模板结构形成纳米级涂层，并且至少部分地去除和/或收缩这些结构以形成中空腔。 这些空穴为纳米结构的活性材料在电池循环过程中提供空间。 该设计有助于降低粉碎的风险并保持纳米结构之间的电接触。 它还提供了与电解质的非常高的表面积可用的离子连通。 纳米结构具有纳米尺寸的壳，但在其它尺寸上可能显着更大。 当形成纳米尺度涂层时，当围绕两个附近的模板结构形成的涂层重叠时，纳米结构可以相互连接。

    INTERCONNECTING ELECTROCHEMICALLY ACTIVE MATERIAL NANOSTRUCTURES
    15.
    发明申请
    INTERCONNECTING ELECTROCHEMICALLY ACTIVE MATERIAL NANOSTRUCTURES 审中-公开
    互连电化学活性材料纳米结构

    公开(公告)号：US20110229761A1

    公开(公告)日：2011-09-22

    申请号：US13069212

    申请日：2011-03-22

    申请人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness ,  Rainer Fasching ,  William S. DelHagen ,  Eugene M. Berdichevsky

    发明人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness ,  Rainer Fasching ,  William S. DelHagen ,  Eugene M. Berdichevsky

    IPC分类号： H01M4/58 ,  B05D5/12

    CPC分类号： H01M4/386 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/38 ,  H01M4/387 ,  H01M4/626

    摘要： Provided are various examples of lithium electrode subassemblies, lithium ion cells using such subassemblies, and methods of fabricating such subassemblies. Methods generally include receiving nanostructures containing electrochemically active materials and interconnecting at least a portion of these nanostructures. Interconnecting may involve depositing one or more interconnecting materials, such as amorphous silicon and/or metal containing materials. Interconnecting may additionally or alternatively involve treating a layer containing the nanostructures using various techniques, such as compressing the layer, heating the layer, and/or passing an electrical current through the layer. These methods may be used to interconnect nanostructures containing one or more high capacity materials, such as silicon, germanium, and tin, and having various shapes or forms, such as nanowires, nanoparticles, and nano-flakes.

    摘要翻译： 提供了锂电极子组件的各种示例，使用这种组件的锂离子电池以及制造这种组件的方法。 方法通常包括接收含有电化学活性材料的纳米结构并互连这些纳米结构的至少一部分。 互连可以涉及沉积一种或多种互连材料，例如非晶硅和/或含金属的材料。 互连可以另外或替代地涉及使用各种技术处理包含纳米结构的层，例如压缩层，加热层和/或使电流通过层。 这些方法可以用于连接含有一种或多种高容量材料（例如硅，锗和锡）的纳米结构，并且具有各种形状或形式，例如纳米线，纳米颗粒和纳米薄片。

    CORE-SHELL HIGH CAPACITY NANOWIRES FOR BATTERY ELECTRODES
    16.
    发明申请
    CORE-SHELL HIGH CAPACITY NANOWIRES FOR BATTERY ELECTRODES 审中-公开
    电池电极的核心高容量纳米管

    公开(公告)号：US20100330421A1

    公开(公告)日：2010-12-30

    申请号：US12787168

    申请日：2010-05-25

    申请人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness

    发明人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness

    IPC分类号： H01M4/583 ,  H01M4/02 ,  H01M4/58 ,  H01M4/62 ,  B05D5/12 ,  B32B37/14

    CPC分类号： H01M4/134 ,  B82Y30/00 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/387 ,  H01M4/622 ,  H01M4/625 ,  H01M4/663 ,  H01M4/75 ,  H01M10/0525 ,  H01M10/4235

    摘要： Provided are nanostructures containing electrochemically active materials, battery electrodes containing these nanostructures for use in electrochemical batteries, such as lithium ion batteries, and methods of forming the nanostructures and battery electrodes. The nanostructures include conductive cores, inner shells containing active materials, and outer shells partially coating the inner shells. The high capacity active materials having a stable capacity of at least about 1000 mAh/g can be used. Some examples include silicon, tin, and/or germanium. The outer shells may be configured to substantially prevent formation of Solid Electrolyte lnterphase (SEI) layers directly on the inner shells. The conductive cores and/or outer shells may include carbon containing materials. The nanostructures are used to form battery electrodes, in which the nanostructures that are in electronic communication with conductive substrates of the electrodes.

    摘要翻译： 提供了含有电化学活性材料的纳米结构体，含有用于电化学电池中的这些纳米结构的电池电极，例如锂离子电池，以及形成纳米结构和电池电极的方法。 纳米结构包括导电芯，含有活性材料的内壳和部分涂覆内壳的外壳。 可以使用具有至少约1000mAh / g的稳定容量的高容量活性材料。 一些实例包括硅，锡和/或锗。 外壳可以构造成基本上防止直接在内壳上形成固体电解质相（SEI）层。 导电芯和/或外壳可以包括含碳材料。 纳米结构用于形成电池电极，其中纳米结构与电极的导电基板电连通。

    ELECTROSPINNING TO FABRICATE BATTERY ELECTRODES
    17.
    发明申请
    ELECTROSPINNING TO FABRICATE BATTERY ELECTRODES 审中-公开
    电解电池电极

    公开(公告)号：US20100330419A1

    公开(公告)日：2010-12-30

    申请号：US12787132

    申请日：2010-05-25

    申请人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness ,  Mark C. Platshon

    发明人： Yi Cui ,  Song Han ,  Ghyrn E. Loveness ,  Mark C. Platshon

    IPC分类号： H01M4/02 ,  B05D5/12 ,  H01M4/82

    CPC分类号： H01M4/625 ,  D01D5/0084 ,  D01F1/10 ,  H01M4/04 ,  H01M4/131 ,  H01M4/587 ,  H01M10/052 ,  Y10T29/49115

    摘要： Provided are electrode assemblies that contain electrochemically active materials for use in batteries, such as lithium ion batteries. Provided also are methods for fabricating these assemblies. In certain embodiments, fabrication involves one or more electrospinning operations such as, for example, electrospinning to deposit a layer of fibers on a conductive substrate. These fibers may include one or more electrochemically active materials. In the same or other embodiments, these or similar fibers can serve as templates for depositing one or more electrochemically active materials. Some examples of active materials include silicon, tin, and/or germanium. Also provided are electrode fibers that include cores containing a first active material and shells or optionally second shells (surrounding inner shells) containing a second active material. The second active material is electrochemically opposite to the first active material. One or more shells can function as a separator and/or as an electrolyte.

    摘要翻译： 提供了包含用于电池中的电化学活性材料的电极组件，例如锂离子电池。 还提供了用于制造这些组件的方法。 在某些实施例中，制造涉及一种或多种静电纺丝操作，例如静电纺丝以在导电基底上沉积纤维层。 这些纤维可以包括一种或多种电化学活性材料。 在相同或其它实施方案中，这些或类似的纤维可以用作沉积一种或多种电化学活性材料的模板。 活性材料的一些实例包括硅，锡和/或锗。 还提供了包括含有第一活性材料的芯和包含第二活性材料的壳或任选的第二壳（围绕内壳）的芯的电极纤维。 第二活性材料在电化学上与第一活性材料相反。 一个或多个壳可用作分离器和/或电解质。