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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
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。
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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。
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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
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。
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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
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。
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公开(公告)号：US08801810B1
公开(公告)日：2014-08-12
申请号：US12944572
申请日：2010-11-11
申请人： Yi Cui , Eugene M. Berdichevsky , Graeme R. Hoste , Rainer J. Fasching , Song Han , Mark C. Platshon
发明人： Yi Cui , Eugene M. Berdichevsky , Graeme R. Hoste , Rainer J. Fasching , Song Han , Mark C. Platshon
IPC分类号： H01M10/058 , H01M10/44
CPC分类号： H01M10/446 , H01M4/0447 , H01M4/134 , H01M4/386 , H01M10/0525 , H01M10/0587 , Y10T29/49108
摘要： Provided are methods of preparing a lithium ion cell including forming the cell by charging the lithium ion cell to at least about 5% or, more specifically, to at least about 20% of the theoretical capacity of the negative electrode electrochemically active material, holding the lithium ion cell in a charged state for at least about 0.5 hours, and discharging the lithium ion cell. Holding the lithium ion cell in a partially charged state is believed to significantly improve its Coulombic efficiency during subsequent cycling.
摘要翻译： 提供了制备锂离子电池的方法，包括通过将锂离子电池充电至负电极电化学活性材料的理论容量的至少约5％，或更具体地至少约20％来形成电池， 锂离子电池处于充电状态至少约0.5小时，并且放电锂离子电池。 认为在部分充电状态下保持锂离子电池在随后的循环期间显着提高其库仑效率。
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公开(公告)号：US07786704B2
公开(公告)日：2010-08-31
申请号：US12434041
申请日：2009-05-01
CPC分类号： H02J7/0073 , B60L3/0092 , B60L11/1816 , B60L11/184 , B60L11/1842 , B60L11/1861 , B60L2230/16 , B60L2250/10 , G06Q30/0284 , G06Q50/06 , Y02E60/721 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7088 , Y02T90/121 , Y02T90/128 , Y02T90/14 , Y02T90/163 , Y02T90/169 , Y04S10/126 , Y04S30/14 , Y04S50/14
摘要： One embodiment of the present subject matter includes a system that includes a battery, an electric vehicle, the battery coupled to the electric vehicle to propel the electric vehicle, and a charging circuit to charge the battery. The embodiment includes a charging cost circuit to estimate a charging cost rate and to turn on the charging circuit. The embodiment also includes a timer circuit to provide a time signal to the charging cost circuit. The embodiment is configured such that the charging cost circuit is to turn on the charging circuit during a first time period in which the charging cost rate is below a first threshold until the battery reaches a first energy stored level, and to turn on the charging circuit during a second time period in which the charging cost rate is above the first threshold.
摘要翻译： 本主题的一个实施例包括一种系统，其包括电池，电动车辆，耦合到电动车辆的电池以推进电动车辆，以及充电电路以对电池充电。 该实施例包括用于估计充电成本率并打开充电电路的充电成本电路。 该实施例还包括一个定时器电路，用于向充电成本电路提供时间信号。 该实施例被配置为使得充电成本电路在充电成本率低于第一阈值的第一时间段内接通充电电路，直到电池达到第一能量存储电平，并且打开充电电路 在充电成本率高于第一阈值的第二时间段期间。
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公开(公告)号：US07719232B2
公开(公告)日：2010-05-18
申请号：US12434067
申请日：2009-05-01
IPC分类号： H02J7/00
CPC分类号： H02J7/0073 , B60L3/0092 , B60L11/1816 , B60L11/184 , B60L11/1842 , B60L11/1861 , B60L2230/16 , B60L2250/10 , G06Q30/0284 , G06Q50/06 , Y02E60/721 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7088 , Y02T90/121 , Y02T90/128 , Y02T90/14 , Y02T90/163 , Y02T90/169 , Y04S10/126 , Y04S30/14 , Y04S50/14
摘要： One embodiment of the present subject matter includes a system that includes a battery, an electric vehicle, the battery coupled to the electric vehicle to propel the electric vehicle, and a charging circuit to charge the battery. The embodiment includes a charging cost circuit to estimate a charging cost rate and to turn on the charging circuit. The embodiment also includes a timer circuit to provide a time signal to the charging cost circuit. The embodiment is configured such that the charging cost circuit is to turn on the charging circuit during a first time period in which the charging cost rate is below a first threshold until the battery reaches a first energy stored level, and to turn on the charging circuit during a second time period in which the charging cost rate is above the first threshold.
摘要翻译： 本主题的一个实施例包括一种系统，其包括电池，电动车辆，耦合到电动车辆的电池以推进电动车辆，以及充电电路以对电池充电。 该实施例包括用于估计充电成本率并打开充电电路的充电成本电路。 该实施例还包括一个定时器电路，用于向充电成本电路提供时间信号。 该实施例被配置为使得充电成本电路在充电成本率低于第一阈值的第一时间段内接通充电电路，直到电池达到第一能量存储电平，并且打开充电电路 在充电成本率高于第一阈值的第二时间段期间。
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