Electrode for a lithium secondary battery having a thin film active material with columnar or insular structures and lithium secondary battery
    22.
    发明授权
    Electrode for a lithium secondary battery having a thin film active material with columnar or insular structures and lithium secondary battery 失效
    具有柱状或岛状结构的薄膜活性物质的锂二次电池用电极和锂二次电池

    公开(公告)号:US07592099B2

    公开(公告)日:2009-09-22

    申请号:US10878965

    申请日:2004-06-29

    Abstract: An electrode for a lithium secondary battery includes a thin film of an active material having a first phase that reacts with Li dominantly and a second phase that reacts less readily with Li than the first phase and exists at least before initial-cycle charging and after discharging in each cycle following the initial cycle. A surface of the current collector has an arithmetical mean roughness Ra of 0.1 μm or greater. A surface of the thin film has irregularities formed corresponding to the irregularities of the current collector surface. By the charging and discharging in the initial cycle and thereafter, gaps form along the thin-film thickness on lines connecting valleys in the thin-film surface irregularities and valleys in the current-collector surface irregularities, and the thin film is divided into columnar or insular structures by the gaps.

    Abstract translation: 用于锂二次电池的电极包括具有与Li主要反应的第一相的活性材料的薄膜和与第一相不太容易与Li反应的第二相,并且至少在初始循环充电之前和放电后存在 在初始周期后的每个周期。 集电体的表面的算术平均粗糙度Ra为0.1μm以上。 薄膜的表面具有对应于集电体表面的凹凸形成的凹凸。 通过在初始循环中的充放电,此后,在与集电体表面凹凸不平的薄膜表面凹凸和谷中的谷连接的线上沿着薄膜厚度形成间隙,并将薄膜分为柱状或 岛屿上的空隙结构。

    METHOD FOR PRODUCING POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR PRODUCING NON-AQUEOUS ELECTROLYTE SECONDARY CELL
    23.
    发明申请
    METHOD FOR PRODUCING POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR PRODUCING NON-AQUEOUS ELECTROLYTE SECONDARY CELL 失效
    用于生产非水电解质二次电池的正电极的方法和用于生产非水电解质二次电池的方法

    公开(公告)号:US20090119908A1

    公开(公告)日:2009-05-14

    申请号:US12268706

    申请日:2008-11-11

    Abstract: A method for producing with a high yield a high performance non-aqueous electrolyte secondary cell with a reduced cost is provided. The method includes the steps of: a baking step of baking a positive electrode active material precursor containing a lithium source and a nickel source in order to render the positive electrode active material precursor a lithium nickel composite oxide; a measuring step of measuring the amount of carbon dioxide gas occurring when the lithium nickel composite oxide is heated to 200° C. or higher and 1500° C. or lower in an inactive gas atmosphere; a selecting step of selecting a lithium nickel composite oxide satisfying the following formulas: y

    Abstract translation: 提供了一种以高产率生产低成本的高性能非水电解质二次电池的方法。 该方法包括以下步骤:烘焙包含锂源和镍源的正极活性物质前体以使正极活性物质前体成为锂镍复合氧化物的烘烤步骤; 测量在惰性气体气氛中将锂镍复合氧化物加热至200℃以上且1500℃以下时发生的二氧化碳气体量的测定步骤; 选择满足下列公式的锂镍复合氧化物的选择步骤:<?in-line-formula description =“In-line formula”end =“lead”?> y <(0.27x-51)/ 1000000(200 < = x <400)公式1 <?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”? > y <57/1000000(400 <= x <= 1500)公式2 <?in-line-formula description =“In-line Formulas”end =“tail”?>其中x是加热温度(°C) 在测量步骤中,y是在测量步骤中测量的每1g所述锂镍复合氧化物的二氧化碳气体量(摩尔/ g) 以及通过使用主要由选择步骤中选择的锂镍复合氧化物的正极活性物质来完成正极的正极完成步骤。

    Surface treatment agent for model
    27.
    发明授权
    Surface treatment agent for model 失效
    型号表面处理剂

    公开(公告)号:US06579917B1

    公开(公告)日:2003-06-17

    申请号:US09511365

    申请日:2000-02-23

    Abstract: A surface treatment agent for a model according to this invention can improve finish of a surface treatment for a model and can shorten time necessary for finish. The surface treatment agent is used for filling stair-steppings on a model surface, mainly comprising base resin which is cured by physical action and microparticles which have good wettability to the base resin and have a particle diameter equal to or smaller than the stair-stepping.

    Abstract translation: 根据本发明的用于模型的表面处理剂可以改善模型的表面处理的光洁度并且可以缩短整理所需的时间。 表面处理剂用于在模型表面上填充楼梯步进,主要包括通过物理作用固化的基础树脂和对基础树脂具有良好润湿性并且具有等于或小于阶梯步长的粒径的微粒 。

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