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公开(公告)号：US08470468B2
公开(公告)日：2013-06-25
申请号：US12704694
申请日：2010-02-12
IPC分类号： H01M2/16
CPC分类号： H01M10/052 , H01M2/16 , H01M2/1646 , H01M2/1653 , H01M2/166 , H01M2/1686 , H01M10/0565 , Y02T10/7011
摘要： A porous polymer sheet or membrane is provided with a thin coating of an electrically non-conductive ceramic composition and the coating conforms to all surfaces, including the pore surfaces, of the membrane. Such a coated membrane serves well, for example, as an intra-cell separator in a lithium ion battery. The coating increases the mechanical properties and thermal stability of the separator in battery operation and retains electrolyte. The coating may be formed by a two-step vapor-phase process in which atoms of one or more metals such as aluminum, calcium, magnesium, titanium, silicon and/or zirconium are deposited in a conformal layer on a workpiece surface. The metal atoms may then be reacted with ammonia, carbon dioxide, and or water to form their respective non-conductive nitrides, carbides, and/or oxides on the surface. The two-step process is repeated as necessary to obtain a ceramic material coating of desired thickness.
摘要翻译： 多孔聚合物片或膜设置有非导电陶瓷组合物的薄涂层，并且涂层符合膜的所有表面，包括孔表面。 这样的涂布膜例如作为锂离子电池中的细胞内分离器良好地起作用。 涂层在电池操作中增加了隔膜的机械性能和热稳定性，并保持了电解液。 涂层可以通过两步气相法形成，其中一种或多种金属如铝，钙，镁，钛，硅和/或锆的原子沉积在工件表面上的共形层中。 然后可以将金属原子与氨，二氧化碳和/或水反应，以在表面上形成它们各自的非导电氮化物，碳化物和/或氧化物。 根据需要重复两步法以获得所需厚度的陶瓷材料涂层。
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公开(公告)号：US20110200863A1
公开(公告)日：2011-08-18
申请号：US12704694
申请日：2010-02-12
CPC分类号： H01M10/052 , H01M2/16 , H01M2/1646 , H01M2/1653 , H01M2/166 , H01M2/1686 , H01M10/0565 , Y02T10/7011
摘要： A porous polymer sheet or membrane is provided with a thin coating of an electrically non-conductive ceramic composition and the coating conforms to all surfaces, including the pore surfaces, of the membrane. Such a coated membrane serves well, for example, as an intra-cell separator in a lithium ion battery. The coating increases the mechanical properties and thermal stability of the separator in battery operation and retains electrolyte. The coating may be formed by a two-step vapor-phase process in which atoms of one or more metals such as aluminum, calcium, magnesium, titanium, silicon and/or zirconium are deposited in a conformal layer on a workpiece surface. The metal atoms may then be reacted with ammonia, carbon dioxide, and or water to form their respective non-conductive nitrides, carbides, and/or oxides on the surface. The two-step process is repeated as necessary to obtain a ceramic material coating of desired thickness.
摘要翻译： 多孔聚合物片或膜设置有非导电陶瓷组合物的薄涂层，并且涂层符合膜的所有表面，包括孔表面。 这样的涂布膜例如作为锂离子电池中的细胞内分离器良好地起作用。 涂层在电池操作中增加了隔膜的机械性能和热稳定性，并保持了电解液。 涂层可以通过两步气相法形成，其中一种或多种金属如铝，钙，镁，钛，硅和/或锆的原子沉积在工件表面上的共形层中。 然后可以将金属原子与氨，二氧化碳和/或水反应，以在表面上形成它们各自的非导电氮化物，碳化物和/或氧化物。 根据需要重复两步法以获得所需厚度的陶瓷材料涂层。
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公开(公告)号：US10020526B2
公开(公告)日：2018-07-10
申请号：US13611709
申请日：2012-09-12
IPC分类号： H01M8/1069 , H01M2/14 , H01M8/1081 , C08K3/16
CPC分类号： H01M8/1079 , C08K3/16 , H01M2/145 , H01M8/1081 , Y02P70/56 , Y10T29/49108 , Y10T29/49826
摘要： A method for forming a membrane includes a step of dissolving a lithium salt in a solution including an ionomer that includes protogenic groups to form a modified solution. A membrane is formed from the solution containing the lithium salt and the ionomer that includes protogenic groups. The membrane is dried and then contacted with water to form a plurality of pores therein.
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公开(公告)号：US20140068927A1
公开(公告)日：2014-03-13
申请号：US13611709
申请日：2012-09-12
CPC分类号： H01M8/1079 , C08K3/16 , H01M2/145 , H01M8/1081 , Y02P70/56 , Y10T29/49108 , Y10T29/49826
摘要： A method for forming a membrane includes a step of dissolving a lithium salt in a solution including an ionomer that includes protogenic groups to form a modified solution. A membrane is formed from the solution containing the lithium salt and the ionomer that includes protogenic groups. The membrane is dried and then contacted with water to form a plurality of pores therein.
摘要翻译： 形成膜的方法包括将锂盐溶解在包括包含原基团的离聚物的溶液中以形成改性溶液的步骤。 由含有锂盐和包含原始基团的离聚物形成的溶液形成膜。 将膜干燥，然后与水接触以在其中形成多个孔。
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公开(公告)号：US09356281B2
公开(公告)日：2016-05-31
申请号：US12123529
申请日：2008-05-20
IPC分类号： H01M4/13 , H01M4/00 , H01M4/54 , H01M4/52 , H01M4/133 , C01B31/04 , C30B25/00 , C30B29/02 , C30B29/60 , H01M4/04 , H01M4/1393 , H01M4/587 , H01M4/66 , H01M10/0525
CPC分类号： H01M4/133 , C01B32/20 , C01B32/225 , C30B25/00 , C30B29/02 , C30B29/60 , H01M4/0428 , H01M4/1393 , H01M4/587 , H01M4/661 , H01M10/0525
摘要： An intercalation electrode includes an electron current collector and graphene planes deposited normal to the surface of the current collector substrate. The graphene planes are deposited on the current collector substrate from a carbon-precursor gas using, for example, chemical vapor deposition. In an embodiment of an anode for a lithium-ion battery, the graphene planes are intercalated with lithium atoms. A lithium-ion battery may include this anode, a cathode, and a non-aqueous electrolyte. In repeated charging and discharging of the anode, lithium atoms and ions are readily transported between the graphene planes of the anode and the electrolyte.
摘要翻译： 嵌入电极包括垂直于集电器基板的表面沉积的电子集电体和石墨烯平面。 使用例如化学气相沉积从碳前体气体将石墨烯平面沉积在集电器基板上。 在用于锂离子电池的阳极的一个实施方案中，石墨烯平面插入锂原子。 锂离子电池可以包括该阳极，阴极和非水电解质。 在阳极的反复充电和放电中，锂原子和离子容易在阳极和电解质的石墨烯平面之间传输。
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公开(公告)号：US20130157125A1
公开(公告)日：2013-06-20
申请号：US13330803
申请日：2011-12-20
CPC分类号： H01M4/134 , B22F7/004 , B22F2999/00 , C22C9/00 , C22C19/03 , C22C28/00 , H01M4/1395 , H01M4/626 , H01M4/661 , H01M4/667 , H01M10/052 , H01M2004/021 , Y02E60/122 , Y02P70/54 , Y02T10/7011 , B22F3/002
摘要： The gravimetric and volumetric efficiency of lithium ion batteries may be increased if high capacity materials like tin and silicon may be employed as the lithium-accepting host in the negative electrode of the battery. But both tin and silicon, when fully charged with lithium, undergo expansions of up to 300% and generate appreciable internal stresses which have potential to spall off material from the electrode on each discharge-charge cycle, resulting in a progressive reduction in battery capacity, also known as battery fade. A method of reinforcing such electrode materials by incorporating within them fiber reinforcements or shaped, elongated reinforcements fabricated of shape memory alloy is described. Electrode materials incorporating such reinforcements are less prone to damage under applied stress and so less prone to battery fade.
摘要翻译： 如果可以使用诸如锡和硅的高容量材料作为电池负极中的锂接受主体，则锂离子电池的重量和体积效率可能会增加。 但是当完全充满锂时，锡和硅都经历了高达300％的膨胀，并产生明显的内应力，这些内应力在每个放电 - 充电循环中都有可能从电极中剥离材料，导致电池容量的逐渐降低， 也称为电池褪色。 在其中加入这种电极材料的方法被描述为由形状记忆合金制成的纤维增强件或成形的细长增强件。 结合这种增强材料的电极材料在施加的应力下不太容易损坏，因此不太容易发生电池褪色。
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7.发明申请COATINGS FOR LITHIUM TITANATE TO SUPPRESS GAS GENERATION IN LITHIUM-ION BATTERIES AND METHODS FOR MAKING AND USE THEREOF 有权用于钛酸锂抑制锂离子电池中气体产生的涂料及其制备和使用方法公开(公告)号：US20140113197A1
公开(公告)日：2014-04-24
申请号：US13654905
申请日：2012-10-18
申请人： Xingcheng Xiao , Mark W. Verbrugge , John S. Wang , Ping Liu
发明人： Xingcheng Xiao , Mark W. Verbrugge , John S. Wang , Ping Liu
CPC分类号： H01M4/131 , H01M4/139 , H01M4/1391 , H01M4/366 , H01M4/485 , H01M4/628 , H01M10/052 , H01M10/42 , H01M10/4235 , H01M10/52 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： An electroactive material for use in an electrochemical cell, like a lithium-ion battery, is provided. The electroactive material comprises lithium titanate oxide (LTO) and has a surface coating with a thickness of less than or equal to about 30 nm that suppresses formation of gases within the electrochemical cell. Methods for making such materials and using such materials to suppress gas formation in electrochemical cells are likewise provided.
摘要翻译： 提供了用于电化学电池中的电活性材料，如锂离子电池。 电活性材料包括钛酸锂氧化物（LTO），并且具有抑制电化学电池内的气体形成的厚度小于或等于约30nm的表面涂层。 同样提供了制造这种材料并使用这种材料抑制电化学电池中的气体形成的方法。
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8.发明申请LITHIUM-ION BATTERY ELECTRODES WITH SHAPE-MEMORY-ALLOY CURRENT COLLECTING SUBSTRATES 有权具有形状记忆合金电流收集基板的锂离子电池电极公开(公告)号：US20130122374A1
公开(公告)日：2013-05-16
申请号：US13293165
申请日：2011-11-10
IPC分类号： H01M4/583
CPC分类号： H01M4/0421 , B82Y30/00 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01M4/661 , H01M4/662 , H01M4/667 , H01M4/70 , H01M10/052 , H01M10/0585 , Y02T10/7011
摘要： Lithium-ion battery electrode constructions use an array of nanowires (or of other long thin shapes) of active electrode material anchored at one end to a surface of a metal current collector sheet in an electrode assembly or construction. This form of active electrode material permits good contact with a liquid lithium-ion containing electrolyte that infiltrates the closely-spaced thin shapes. Stresses arising from volume changes in the long shapes with lithiation and de-lithiation of the active material is mitigated by strategic placement of shape memory apply forms between attachment surfaces of the active electrode material and other members of the electrode assembly.
摘要翻译： 锂离子电池电极结构使用在电极组件或结构中锚定在金属集电体片的一端的活性电极材料的纳米线（或其它长薄形）的阵列。 这种形式的活性电极材料允许与含有锂离子的液体的电解质良好接触，这种电解质渗入紧密间隔的薄形状。 通过在活性电极材料的附着表面和电极组件的其它部件的附着表面之间的形状记忆应用形式的策略性布置来缓解由于活性材料的锂化和脱锂而导致的长形状体积变化引起的应力。
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公开(公告)号：US20090325071A1
公开(公告)日：2009-12-31
申请号：US12123529
申请日：2008-05-20
CPC分类号： H01M4/133 , C01B32/20 , C01B32/225 , C30B25/00 , C30B29/02 , C30B29/60 , H01M4/0428 , H01M4/1393 , H01M4/587 , H01M4/661 , H01M10/0525
摘要： An intercalation electrode includes an electron current collector and graphene planes deposited normal to the surface of the current collector substrate. The graphene planes are deposited on the current collector substrate from a carbon-precursor gas using, for example, chemical vapor deposition. In an embodiment of an anode for a lithium-ion battery, the graphene planes are intercalated with lithium atoms. A lithium-ion battery may include this anode, a cathode, and a non-aqueous electrolyte. In repeated charging and discharging of the anode, lithium atoms and ions are readily transported between the graphene planes of the anode and the electrolyte.
摘要翻译： 嵌入电极包括垂直于集电器基板的表面沉积的电子集电体和石墨烯平面。 使用例如化学气相沉积从碳前体气体将石墨烯平面沉积在集电器基板上。 在用于锂离子电池的阳极的一个实施方案中，石墨烯平面插入锂原子。 锂离子电池可以包括该阳极，阴极和非水电解质。 在阳极的反复充电和放电中，锂原子和离子容易在阳极和电解质的石墨烯平面之间传输。
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10.发明授权Phase separated silicon-tin composite as negative electrode material for lithium-ion batteries 有权相分离的硅 - 锡复合材料作为锂离子电池的负极材料公开(公告)号：US09142830B2
公开(公告)日：2015-09-22
申请号：US13234209
申请日：2011-09-16
申请人： Xingcheng Xiao , Anil K. Sachdev , Mark W. Verbrugge , Ping Liu , John S Wang
发明人： Xingcheng Xiao , Anil K. Sachdev , Mark W. Verbrugge , Ping Liu , John S Wang
IPC分类号： H01M4/134 , H01M4/04 , H01M10/052 , H01M4/1395 , H01M4/38 , B82Y30/00 , H01B1/04 , H01B1/08
CPC分类号： H01M4/0426 , B82Y30/00 , H01B1/04 , H01B1/08 , H01M4/0423 , H01M4/0483 , H01M4/134 , H01M4/1395 , H01M4/386 , H01M4/387 , H01M10/052 , Y02E60/122
摘要： A composite of silicon and tin is prepared as a negative electrode composition with increased lithium insertion capacity and durability for use with a metal current collector in cells of a lithium-ion battery. This electrode material is formed such that the silicon is present as a distinct amorphous phase in a matrix phase of crystalline tin. While the tin phase provides electron conductivity, both phases accommodate the insertion and extraction of lithium in the operation of the cell and both phases interact in minimizing mechanical damage to the material as the cell experiences repeated charge and discharge cycles. In general, roughly equal atomic proportions of the tin and silicon are used in forming the phase separated composite electrode material.
摘要翻译： 制备硅和锡的复合物作为具有增加的锂插入能力和耐久性的负极组合物，其与锂离子电池的电池中的金属集电体一起使用。 这种电极材料形成为使得硅在结晶锡的基质相中作为不同的非晶相存在。 当锡相提供电子传导性时，两相在电池操作中容纳锂的插入和提取，并且当电池经历重复充电和放电循环时，两相相互作用以最小化对材料的机械损伤。 通常，在形成相分离的复合电极材料中使用大致相等的锡和硅的原子比例。
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