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公开(公告)号：US20100248028A1
公开(公告)日：2010-09-30
申请号：US12816644
申请日：2010-06-16
IPC分类号： H01M10/18
CPC分类号： H01M10/18 , H01M4/38 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/64 , H01M4/66 , H01M4/668 , H01M6/48 , Y10T29/53135 , Y10T29/532
摘要： The invention provides bipolar articles (e.g., batteries and capacitors) with new architectures and methods of making and using the same. Articles are provided with interpenetrating anode and cathode structures that allow for improved power density, and arbitrary form factors that allow for formation in substantially any desired shape. The articles are useful for embedding or integral formation in various electronic devices to provide more efficient use of space in the devices. The articles optionally include self-organizing bipolar structures.
摘要翻译： 本发明提供具有新架构的双极制品（例如，电池和电容器）及其制造和使用方法。 物品具有互穿阳极和阴极结构，其允许改善的功率密度，以及允许以基本上任何所需形状形成的任意形状因子。 这些制品对于在各种电子设备中的嵌入或整体形成是有用的，以便更有效地利用装置中的空间。 文章任选地包括自组织双极结构。
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公开(公告)号：US20110081577A1
公开(公告)日：2011-04-07
申请号：US12880558
申请日：2010-09-13
CPC分类号： H01M10/0525 , H01M4/13 , H01M4/133 , H01M4/136 , H01M4/5825 , H01M4/583 , H01M4/587 , H01M10/0587 , H01M2004/021 , H01M2010/4292
摘要： A high capacity, high charge rate lithium secondary cell includes a high capacity lithium-containing positive electrode in electronic contact with a positive electrode current collector, said current collector in electrical connection with an external circuit, a high capacity negative electrode in electronic contact with a negative electrode current collector, said current collector in electrical connection with an external circuit, a separator positioned between and in ionic contact with the cathode and the anode, and an electrolyte in ionic contact with the positive and negative electrodes, wherein the total area specific impedance for the cell and the relative area specific impedances for the positive and negative electrodes are such that, during charging at greater than or equal to 4 C, the negative electrode potential is above the potential of metallic lithium.
摘要翻译： 高容量高电荷率锂二次电池包括与正极集电体电接触的高容量含锂正极，所述集电体与外部电路电连接，与 负极集电器，所述集电器与外部电路电连接，位于阴极和阳极之间并与阴极和阳极离子接触的分离器，以及与正极和负极离子接触的电解质，其中总面积比阻抗 对于正极和负极的电池和相对面积比阻抗使得在大于或等于4℃的充电期间，负极电位高于金属锂的电位。
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公开(公告)号：US20120328942A1
公开(公告)日：2012-12-27
申请号：US13582778
申请日：2011-03-07
IPC分类号： H01M4/64
CPC分类号： H01M4/587 , H01M2004/021
摘要： An electrode has a front face furthest from the current collector and a back face closest to the current collector and Is disposed on the current collector, and the electrode has a primary gradient of one of a chemical, physical and performance properties of the electroactive particle composition between the front and back faces, with the proviso that the primary gradient is not a bulk porosity gradient. In some embodiments, the electrode further comprises one or more secondary gradients Imposed over the primary gradient. The secondary gradient is one or more gradients selected from the group consisting of particle size gradient, particle size distribution gradient, particle morphology gradient, particle internal porosity, bulk porosity, particle volumetric charge-transfer resistance gradient, particle specific surface area gradient, particle crystalline structure gradient, particle crystallite size gradient, particle chemical composition gradient, particle robustness to cycling gradient, binder gradient, conductive additive gradient, and combinations thereof.
摘要翻译： 电极具有与集电体最远的前面和最靠近集电体的背面，并且设置在集电体上，并且电极具有电活性颗粒组合物的化学，物理和性能之一的一级梯度 在前面和后面之间，条件是主梯度不是体积孔隙度梯度。 在一些实施例中，电极还包括暴露于主梯度上的一个或多个次级梯度。 次级梯度是选自粒度梯度，粒度分布梯度，颗粒形态梯度，颗粒内部孔隙率，体积孔隙率，颗粒体积电荷转移阻力梯度，颗粒比表面积梯度，颗粒结晶度的一个或多个梯度 结构梯度，颗粒微晶尺寸梯度，颗粒化学组成梯度，颗粒对循环梯度的鲁棒性，粘合剂梯度，导电添加剂梯度及其组合。
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