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    Nano-patterned metal electrode for solid oxide fuel cell
    3.
    发明申请
    Nano-patterned metal electrode for solid oxide fuel cell 审中-公开
    用于固体氧化物燃料电池的纳米图案化金属电极

    公开(公告)号：US20100200537A1

    公开(公告)日：2010-08-12

    申请号：US12653968

    申请日：2009-12-17

    申请人： Young Beom Kim ,  Yi Cui ,  Ching-Mei Hsu ,  Steve T. Connor ,  Friedrich B. Prinz

    发明人： Young Beom Kim ,  Yi Cui ,  Ching-Mei Hsu ,  Steve T. Connor ,  Friedrich B. Prinz

    IPC分类号： H01M4/88 ,  C23C14/34

    CPC分类号： H01M4/881 ,  C23C14/042 ,  C23C14/185 ,  H01M4/8817 ,  H01M4/8871 ,  H01M4/92

    摘要： The current invention provides a method of fabricating nano-pore structured dense Pt electrodes using particle masking and LB deposition methods. The pore size and TPB density are easily tunable by changing initial size of the masking silica particles and the spacing between them. Compared to the solid oxide fuel cell MEAs with porous Pt electrode deposited by conventional DC sputtering method, fuel cell MEAs with the nano structured electrodes fabricated according to the current invention showed thermal and microstructural stability and superior I-V performance at 400˜450° C. Also, EIS spectra showed significant improvement in the oxygen reduction kinetics by increasing the density of charge transfer sites at the TPB. A nearly linear scaling relationship between TPB density and fuel cell performance was also demonstrated.

    摘要翻译： 本发明提供使用粒子掩蔽和LB沉积方法制造纳米孔结构致密Pt电极的方法。 通过改变掩模二氧化硅颗粒的初始尺寸和它们之间的间距，可以容易地调节孔径和TPB密度。 与通过常规DC溅射法沉积的具有多孔Pt电极的固体氧化物燃料电池MEA相比，根据本发明制造的具有纳米结构电极的燃料电池MEA在400〜450℃显示出热和微结构稳定性以及优异的IV性能。 ，EIS光谱通过增加TPB上的电荷转移位点的密度，显示出氧还原动力学的显着改善。 TPB密度和燃料电池性能之间几乎线性的缩放关系也得到了证实。

    Forming multilayered solid electrolyte interphase structures on high capacity electrodes
    5.
    发明授权
    Forming multilayered solid electrolyte interphase structures on high capacity electrodes 有权
    在高容量电极上形成多层固体电解质相间结构

    公开(公告)号：US09112212B1

    公开(公告)日：2015-08-18

    申请号：US13281252

    申请日：2011-10-25

    申请人： Rainer J Fasching ,  Gregory Alan Roberts ,  Yi Cui ,  Song Han

    发明人： Rainer J Fasching ,  Gregory Alan Roberts ,  Yi Cui ,  Song Han

    IPC分类号： H01M4/134 ,  H01M4/02

    CPC分类号： H01M4/134 ,  H01M4/02 ,  H01M4/366 ,  H01M2004/021

    摘要： Provided are novel methods of fabricating electrochemical cells containing high capacity active materials that form multilayered solid electrolyte interphase (SEI) structures on the active material surface during cell fabrication. Combining multiple different SEI layers on one surface can substantially improve cell performance by providing each layer with different properties. For example, an outer layer having a high electronic resistance may be combined with an inner layer having a high ionic permeability. To form such multilayered SEI structures, formation may involve changing electrolyte composition, functionalizing surfaces, and/or varying formation conditions. For example, formation may start with a boron containing electrolyte. This initial electrolyte is then replaced with an electrolyte that does not contain boron and instead may contain fluorine additives. In certain embodiments, cell's temperature is changed during formation to initiate different chemical reactions during SEI formation. Variations in multilayered SEI structures may be also achieved by varying current rates.

    摘要翻译： 提供了在电池制造期间在活性材料表面上形成含有高容量活性材料的电化学电池的新颖方法，其在活性材料表面上形成多层固体电解质间相（SEI）结构。 在一个表面上组合多个不同的SEI层可以通过提供每个层具有不同的性质来显着改善电池的性能。 例如，具有高电子电阻的外层可以与具有高离子渗透性的内层组合。 为了形成这种多层SEI结构，形成可能涉及改变电解质组成，官能化表面和/或变化的形成条件。 例如，可以用含硼电解质开始形成。 然后用不含硼的电解质替代该初始电解质，并且可以含有氟添加剂。 在某些实施方案中，细胞的温度在形成过程中改变，以在SEI形成过程中引发不同的化学反应。 多层SEI结构的变化也可以通过改变当前速率来实现。

    Preloading lithium ion cell components with lithium
    6.
    发明授权
    Preloading lithium ion cell components with lithium 有权
    用锂预加载锂离子电池组件

    公开(公告)号：US08846251B2

    公开(公告)日：2014-09-30

    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： H01M4/13 ,  H01M4/58

    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。