Primary electrochemical cell having scalloped electrodes
    21.
    发明授权
    Primary electrochemical cell having scalloped electrodes 有权
    具有扇形电极的初级电化学电池

    公开(公告)号:US07273674B1

    公开(公告)日:2007-09-25

    申请号:US10788823

    申请日:2004-02-27

    Abstract: A primary lithium electrochemical cell housed in a casing having a curved side wall intermediate opposed generally planar face walls is described. The cell comprises an anode and a cathode that each has a plurality of face portions joined together by connecting portions. The opposite polarity face portions and connecting portions are aligned with each other and then the electrodes are wound to provide an electrode assembly that fits in the casing. Regardless whether the cell is balanced as either an anode-limited or cathode-limited configuration, however, it is desirable to have the active material of one electrode face portion directly facing the electrode material of the counter electrode face portion. This means that the dimensional extent of the facing electrodes should be as close to each other in areas as possible to match the desired anode- or cathode-limited balance. The same is true for the connecting portions. The cell is of a high energy density for an implantable biomedical device.

    Abstract translation: 描述了容纳在壳体中的初级锂电化学电池,其具有中间相对的大致平坦的面壁的弯曲侧壁。 电池包括阳极和阴极,每个阳极和阴极具有通过连接部分连接在一起的多个面部。 相反的极性面部分和连接部分彼此对准,然后缠绕电极以提供装配在壳体中的电极组件。 然而,无论电池是否被平衡为阳极限制或阴极限制的结构,希望使一个电极面部分的活性材料直接面对对电极面部的电极材料。 这意味着面对电极的尺寸范围应尽可能地相互接近以匹配所需的阳极或阴极限制的平衡。 对于连接部分也是如此。 该细胞对于植入式生物医学装置具有高能量密度。

    Electrochemical cell designs with anode plates and connections which facilitate heat dissipation
    22.
    发明申请
    Electrochemical cell designs with anode plates and connections which facilitate heat dissipation 失效
    具有阳极板和连接的电化学电池设计,有利于散热

    公开(公告)号:US20050238953A1

    公开(公告)日:2005-10-27

    申请号:US10832195

    申请日:2004-04-26

    Abstract: Heat generation is an important concern of electrochemical cell design. The invention is directed toward a cell design that efficiently and responsively dissipates heat by transfer from the cell to the casing through multiple parallel connections. This invention relates to battery designs having cell stacks in which both the anode and cathode are of a plate structure and the anode plates are independently connected to the cell casing or connected thereto via a bridge or bus. They may also consist of cell assemblies of wound electrode configurations or plate-serpentine configurations having multiple parallel connections to the cell casing. Surface area is an important criterion in battery design since it increases the current draw capability of the battery. The total surface area of this cell is potentially larger than any of the above mentioned types without sacrificing safety since the rate of heat conduction along the electrode pathway is approximately proportional to half an individual plate length, rather than the total anode length. Also, since the rate of heat leaving the cell is in excess of that found in traditional, galaxy or cathode plate and serpentine anode types of cells, the probability of cell venting is minimal.

    Abstract translation: 热电生成是电化学电池设计的重要问题。 本发明涉及一种电池设计,其通过多个并联连接将电池从电池转移到壳体而有效且响应性地散热。 本发明涉及具有电池堆的电池设计,其中阳极和阴极均为板状结构,并且阳极板独立地连接到电池壳体或通过电桥或母线与其连接。 它们还可以由具有多个平行连接到电池壳体的卷绕电极配置或板 - 蛇形结构的电池组件组成。 表面积是电池设计中的重要标准,因为它增加了电池的电流消耗能力。 该电池的总表面积潜在地大于任何上述类型,而不牺牲安全性,因为沿着电极通路的热传导速率大约与单独板长度的一半成比例,而不是总阳极长度。 此外,由于离开电池的热量超过传统的星系或阴极板和蛇形阳极类型的电池中的热量,所以细胞排出的可能性是最小的。

    Device and method for uniformly distributing electrode particles
    23.
    发明授权
    Device and method for uniformly distributing electrode particles 失效
    均匀分布电极颗粒的装置和方法

    公开(公告)号:US06788524B2

    公开(公告)日:2004-09-07

    申请号:US10684077

    申请日:2003-10-09

    Abstract: A drop-fill assembly and method for uniformly distributing electrode active particles onto a current collector is described. The drop-fill assembly comprises a conduit containing two or more spaced apart sifting screens. A funnel is located upstream of the sifting screens to distribute an electrode active powder into the center of the conduit with a downward velocity. The mesh of any one sifting screen is out of direct alignment with respect to the next or previous screen. The electrode active powder is poured into the funnel and distributed across the conduit's cross-section as it bounces off and passes through the misaligned sifting screens. The powder exits at the bottom of the conduit lying in a thin, uniform layer on a current collector, taking on the shape of the desired electrode due to the boundary of the conduit and pressing fixtures located above and beneath the current collector. The powder layer is then pressed on to the current collector to produce an electrode.

    Abstract translation: 描述了将电极活性粒子均匀地分布到集电器上的滴注组件和方法。 液滴填充组件包括含有两个或更多个间隔开的筛网的导管。 漏斗位于筛网的上游,以电流有效的粉末以向下的速度分布在导管的中心。 任何一个筛网的网格相对于下一个屏幕或上一个屏幕都不直接对齐。 将电极活性粉末倒入漏斗中并分布在导管的横截面上,当其反弹并穿过未对准的筛选筛。 粉末在位于集电器上的薄的均匀层中的管道的底部离开,由于位于集电器上方和下方的管道和压制夹具的边界,呈现所需电极的形状。 然后将粉末层压在集电器上以产生电极。

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