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。

公开(公告)号：US08637185B2

公开(公告)日：2014-01-28

申请号：US12944596

申请日：2010-11-11

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

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

IPC分类号： H01M4/38

CPC分类号： H01M4/134 ,  H01M4/0428 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/661 ,  H01M4/669 ,  H01M4/74 ,  H01M4/742 ,  H01M4/808

摘要： Provided are conductive substrates having open structures and fractional void volumes of at least about 25% or, more specifically, or at least about 50% for use in lithium ion batteries. Nanostructured active materials are deposited over such substrates to form battery electrodes. The fractional void volume may help to accommodate swelling of some active materials during cycling. In certain embodiments, overall outer dimensions of the electrode remain substantially the same during cycling, while internal open spaces of the conductive substrate provide space for any volumetric changes in the nanostructured active materials. In specific embodiments, a nanoscale layer of silicon is deposited over a metallic mesh to form a negative electrode. In another embodiment, a conductive substrate is a perforated sheet with multiple openings, such that a nanostructured active material is deposited into the openings but not on the external surfaces of the sheet.

摘要翻译： 提供了具有至少约25％，或更具体地至少约50％的具有开放结构和分数空隙体积的导电基底，用于锂离子电池。 纳米结构的活性材料沉积在这样的衬底上以形成电池电极。 在循环过程中，分数空隙体积有助于适应一些活性物质的溶胀。 在某些实施例中，电极的整个外部尺寸在循环过程中保持基本相同，而导电衬底的内部开放空间为纳米结构活性材料中的任何体积变化提供了空间。 在具体实施方案中，将纳米级的硅层沉积在金属网上以形成负电极。 在另一个实施例中，导电衬底是具有多个开口的穿孔片，使得纳米结构的活性材料沉积到开口中而不是在片的外表面上。

公开(公告)号：US20110111296A1

公开(公告)日：2011-05-12

申请号：US12944596

申请日：2010-11-11

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

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

IPC分类号： H01M4/38 ,  H01M4/70 ,  H01M4/66 ,  B05D5/12

CPC分类号： H01M4/134 ,  H01M4/0428 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/661 ,  H01M4/669 ,  H01M4/74 ,  H01M4/742 ,  H01M4/808

摘要： Provided are conductive substrates having open structures and fractional void volumes of at least about 25% or, more specifically, or at least about 50% for use in lithium ion batteries. Nanostructured active materials are deposited over such substrates to form battery electrodes. The fractional void volume may help to accommodate swelling of some active materials during cycling. In certain embodiments, overall outer dimensions of the electrode remain substantially the same during cycling, while internal open spaces of the conductive substrate provide space for any volumetric changes in the nanostructured active materials. In specific embodiments, a nanoscale layer of silicon is deposited over a metallic mesh to form a negative electrode. In another embodiment, a conductive substrate is a perforated sheet with multiple openings, such that a nanostructured active material is deposited into the openings but not on the external surfaces of the sheet.

摘要翻译： 提供了具有至少约25％，或更具体地至少约50％的具有开放结构和分数空隙体积的导电基底，用于锂离子电池。 纳米结构的活性材料沉积在这样的衬底上以形成电池电极。 在循环过程中，分数空隙体积有助于适应一些活性物质的溶胀。 在某些实施例中，电极的整个外部尺寸在循环过程中保持基本相同，而导电衬底的内部开放空间为纳米结构化活性材料中的任何体积变化提供了空间。 在具体实施方案中，将纳米级的硅层沉积在金属网上以形成负电极。 在另一个实施例中，导电衬底是具有多个开口的穿孔片，使得纳米结构的活性材料沉积到开口中而不是在片的外表面上。

公开(公告)号：US20110111300A1

公开(公告)日：2011-05-12

申请号：US12944576

申请日：2010-11-11

申请人： William S. DelHagen ,  Rainer J. Fasching ,  Ghyrn E. Loveness ,  Song Han ,  Eugene M. Berdichevsky ,  Constantin I. Stefan ,  Yi Cui ,  Mark C. Platshon

发明人： William S. DelHagen ,  Rainer J. Fasching ,  Ghyrn E. Loveness ,  Song Han ,  Eugene M. Berdichevsky ,  Constantin I. Stefan ,  Yi Cui ,  Mark C. Platshon

IPC分类号： H01M4/134 ,  H01M4/13 ,  H01M4/139 ,  B05D5/12

CPC分类号： H01M10/052 ,  H01M4/13 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/661

摘要： Provided are novel electrodes for use in lithium ion batteries. An electrode includes one or more intermediate layers positioned between a substrate and an electrochemically active material. Intermediate layers may be made from chromium, titanium, tantalum, tungsten, nickel, molybdenum, lithium, as well as other materials and their combinations. An intermediate layer may protect the substrate, help to redistribute catalyst during deposition of the electrochemically active material, improve adhesion between the active material and substrate, and other purposes. In certain embodiments, an active material includes one or more high capacity active materials, such as silicon, tin, and germanium. These materials tend to swell during cycling and may loose mechanical and/or electrical connection to the substrate. A flexible intermediate layer may compensate for swelling and provide a robust adhesion interface. Provided also are novel methods of fabricating electrodes containing one or more intermediate layers.

摘要翻译： 提供用于锂离子电池的新型电极。 电极包括位于基底和电化学活性材料之间的一个或多个中间层。 中间层可以由铬，钛，钽，钨，镍，钼，锂以及其它材料及其组合制成。 中间层可以保护基底，有助于在电化学活性材料的沉积期间重新分布催化剂，改善活性材料和基底之间的粘附性以及其它目的。 在某些实施方案中，活性材料包括一种或多种高容量活性材料，例如硅，锡和锗。 这些材料在循环过程中倾向于膨胀，并可能导致与基底的机械和/或电连接。 柔性中间层可以补偿溶胀并提供牢固的粘合界面。 还提供了制造包含一个或多个中间层的电极的新方法。

公开(公告)号：US20140370380A9

公开(公告)日：2014-12-18

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 ,  B32B37/14 ,  H01M4/62 ,  B05D5/12 ,  H01M4/02 ,  H01M4/58

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。

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。

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。

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。

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。

公开(公告)号：US20120183856A1

公开(公告)日：2012-07-19

申请号：US13427681

申请日：2012-03-22

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

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

IPC分类号： H01M4/583 ,  H01M4/38 ,  B82Y30/00

CPC分类号： H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/66 ,  H01M4/661 ,  H01M4/663 ,  H01M4/75 ,  H01M10/0525 ,  H01M2004/022 ,  Y10T29/49108

摘要： A lithium ion battery electrode includes silicon nanowires used for insertion of lithium ions and including a conductivity enhancement, the nanowires growth-rooted to the conductive substrate.

摘要翻译： 锂离子电池电极包括用于插入锂离子的硅纳米线，并且包括导电性增强，生长在导电基底上的纳米线。