Nonaqueous organic electrolytes for low temperature discharge of rechargeable electrochemical cells
    4.
    发明授权
    Nonaqueous organic electrolytes for low temperature discharge of rechargeable electrochemical cells 有权
    用于可再充电电化学电池的低温放电的非水有机电解质

    公开(公告)号:US06746804B2

    公开(公告)日:2004-06-08

    申请号:US10232166

    申请日:2002-08-30

    IPC分类号: H01M616

    摘要: An alkali metal secondary electrochemical cell, and preferably a lithium ion cell, activated with an equilibrated quaternary solvent system, is described. The solvent system comprises a mixture of dialkyl carbonates and cyclic carbonates, and preferably a quaternary mixture of dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate and ethylene carbonate with dimethyl carbonate, diethyl carbonate and ethylmethyl carbonate in an equilibrated molar mixture. Lithium ion cells activated with this electrolyte have good room temperature cycling characteristics and excellent low temperature discharge behavior.

    摘要翻译: 描述了用平衡的四元溶剂体系活化的碱金属二次电化学电池,优选锂离子电池。 溶剂系统包括碳酸二烷基酯和环状碳酸酯的混合物,并且优选在平衡的摩尔混合物中碳酸二甲酯,碳酸二乙酯,碳酸甲乙酯和碳酸亚乙酯与碳酸二甲酯,碳酸二乙酯和碳酸甲乙酯的季混合物。 用该电解液活化的锂离子电池具有良好的室温循环特性和优异的低温放电特性。

    Organic carbonate additives for nonaqueous electrolyte rechargeable electrochemical cells
    5.
    发明授权
    Organic carbonate additives for nonaqueous electrolyte rechargeable electrochemical cells 有权
    用于非水电解质可充电电化学电池的有机碳酸盐添加剂

    公开(公告)号:US06759170B2

    公开(公告)日:2004-07-06

    申请号:US10235405

    申请日:2002-09-05

    IPC分类号: H01M616

    摘要: A lithium ion electrochemical cell having high charge/discharge capacity, long cycle life and exhibiting a reduced first cycle irreversible capacity, is described. The stated benefits are realized by the addition of at least one carbonate additive to an electrolyte comprising an alkali metal salt dissolved in a solvent mixture including ethylene carbonate, dimethyl carbonate, ethyl methyl carbonate and diethyl carbonate. The preferred additive is either a linear or cyclic carbonate containing covalent O—X and O—Y bonds on opposite sides of a carbonyl group wherein at least one of the O—X and the O—Y bonds has a dissociation energy less than about 80 kcal/mole.

    摘要翻译: 描述了具有高充电/放电容量,长循环寿命并且显示出降低的第一周期不可逆容量的锂离子电化学电池。 通过向包含溶解在包括碳酸亚乙酯,碳酸二甲酯,碳酸甲乙酯和碳酸二乙酯的溶剂混合物中的碱金属盐的电解质中加入至少一种碳酸酯添加剂来实现所述的益处。 优选的添加剂是在羰基的相对侧上含有共价O-X和O-Y键的直链或环状碳酸酯,其中O-X和O-Y键中的至少一个具有小于约80kcal / mol的解离能。

    Method of selecting replacement indicating voltage for an implantable electrochemical cell
    6.
    发明授权
    Method of selecting replacement indicating voltage for an implantable electrochemical cell 失效
    选择可植入电化学电池的替代指示电压的方法

    公开(公告)号:US07646170B2

    公开(公告)日:2010-01-12

    申请号:US11382744

    申请日:2006-05-11

    IPC分类号: H01M10/44

    摘要: A method for providing an elective replacement indicator (ERI) voltage for a first implantable electrochemical cell, comprising the steps of providing a second, substantially identical exemplary electrochemical cell; repeatedly connecting and disconnecting the second cell to a sequence of at least three loads, thereby discharging the second cell from a state of about zero percent to at least about ninety percent depth-of-discharge; generating cell voltage vs. depth-of-discharge plots for the at least three loads repeatedly connected to the second cell; identifying a range of depth-of-discharge for the at least three loads wherein a statistical indicator of the second cell voltage variability with load at the same depth-of-discharge is less than a predetermined value among the at least three loads; and then defining the ERI voltage for the first implantable electrochemical cell as the voltage that occurs at a predetermined load at a specified point within the identified range for the second electrochemical cell.

    摘要翻译: 一种用于为第一可植入电化学电池提供选择性替代指示剂(ERI)电压的方法,包括以下步骤:提供第二基本相同的示例性电化学电池; 将第二电池重复地连接和断开至至少三个负载的序列,从而将第二电池从大约零百分之一至大约百分之九十的放电深度的状态排出; 产生电池电压与重复连接到第二电池的至少三个负载的放电曲线图; 识别所述至少三个负载的放电深度范围,其中在所述至少三个负载中,具有在相同放电深度处的负载的所述第二电池电压变异性的统计指标小于预定值; 然后将第一可植入电化学电池的ERI电压定义为在第二电化学电池的所识别范围内的特定点处以预定负载发生的电压。

    Sandwich Cathode Electrochemical Cell With Wound Electrode Assembly
    7.
    发明申请
    Sandwich Cathode Electrochemical Cell With Wound Electrode Assembly 有权
    带有电极组件的三明治阴极电化学电池

    公开(公告)号:US20070059599A1

    公开(公告)日:2007-03-15

    申请号:US11532126

    申请日:2006-09-15

    摘要: A new design for a cathode having a configuration of: SVO/first current collector/CFx/second current collector/SVO is described. The two cathode current collectors are vertically aligned one on top of the other in a middle region or zone of the cathode. This coincides to where a winding mandrel will be positioned to form a wound electrode assembly with an anode. The overlapping region of the two current collectors helps balance the expansion forces of the exemplary SVO and CFx active material layers. This, in turn, helps maintain a planar cathode that is more amenable to downstream processing. The use of two current collectors on opposite sides of an intermediate cathode active material also provides for enhanced reliability when cathodes are wound from the center as they lend structural integrity to outer portions of the wind.

    摘要翻译: 描述了具有以下配置的阴极的新设计:SVO /第一集电器/ CF / /第二集电器/ SVO。 在阴极的中间区域或区域中,两个阴极集电体在另一个的顶部垂直对准。 这一点与绕组心轴将被定位以形成具有阳极的卷绕电极组件的情况相一致。 两个集电器的重叠区域有助于平衡示例性SVO和CF x活性材料层的膨胀力。 这又有助于维持更适合于下游处理的平面阴极。 在中间阴极活性材料的相对侧上使用两个集电器还提供了当从中心缠绕阴极时提高可靠性,因为它们将结构完整性提供给风的外部部分。

    METHOD FOR PROVIDING A HERMETICALLY SEALED COIN CELL
    9.
    发明申请
    METHOD FOR PROVIDING A HERMETICALLY SEALED COIN CELL 有权
    提供密封密封蛋白细胞的方法

    公开(公告)号:US20060037190A1

    公开(公告)日:2006-02-23

    申请号:US11163826

    申请日:2005-11-01

    IPC分类号: H01M10/04

    摘要: A hermetically sealed coin cell is described. The coin cell has the opposite polarity terminals isolated from one another by a glass-to-metal seal. Glassing a conductive disc inside a ring of greater diameter and height forms this seal. The height of the ring is equivalent to the desired height of the cell. The disc acts as one cell terminal, which can be positive or negative, and the ring serves as the other terminal. In plan view, both terminals are on the same side of the cell. This allows for easy mounting and connection to an electronic circuit board, and the like.

    摘要翻译: 描述了密封的纽扣电池。 纽扣电池具有相反的极性端子,通过玻璃对金属密封件相互隔离。 在更大直径和高度的环内玻璃导电盘形成这种密封。 环的高度等于电池的所需高度。 盘作为一个单元端子,其可以是正的或负的,并且该环用作另一个端子。 在平面图中,两个终端位于单元的同一侧。 这允许容易地安装和连接到电子电路板等。