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    Sandwich cathode design for alkali metal electrochemical cells having circuit safety characteristics
    3.
    发明公开
    Sandwich cathode design for alkali metal electrochemical cells having circuit safety characteristics 审中-公开
    Sandwich-Kathode Bauweisefür碱金属电镀Zelle mit Kurzschlusssicherheiteigenschaften

    公开(公告)号：EP1207567A2

    公开(公告)日：2002-05-22

    申请号：EP01127228.3

    申请日：2001-11-16

    申请人： WILSON GREATBATCH LTD.

    发明人： Gan, Hong ,  Takeuchi, Esther S.

    IPC分类号： H01M4/02 ,  H01M4/06 ,  H01M4/36 ,  H01M6/16

    CPC分类号： H01M4/13 ,  H01M4/06 ,  H01M4/08 ,  H01M4/34 ,  H01M4/366 ,  H01M4/48 ,  H01M4/581 ,  H01M4/582 ,  H01M4/5825 ,  H01M4/5835 ,  H01M4/661 ,  H01M4/667 ,  H01M6/16 ,  H01M6/5055 ,  H01M2004/028 ,  H01M2300/0037 ,  Y10T29/49108

    摘要： A new sandwich cathode design having a first cathode active material of a relatively low energy density but of a relatively high rate capability sandwiched between two current collectors and with a second cathode active material having a relatively high energy density but of a relatively low rate capability in contact with the opposite sides of the two current collectors, is described. The present cathode design is relatively safer under short circuit and abuse conditions than cells having a cathode active material of a relatively high energy density but a relatively low rate capability alone. A preferred cathode is: CF x /current collector/SVO/current collector/CF x . The SVO provides the discharge end of life indication since CF x and SVO.cathode cells discharge under different voltage profiles. This is useful as an end-of-replacement indicator (ERI) for an implantable medical device, such as a cardiac pacemaker.

    摘要翻译： 一种新的夹层阴极设计，其具有夹在两个集电器之间的相对较低能量密度但具有相对较高速率性能的第一阴极活性材料，并且具有第二阴极活性材料，该第二阴极活性材料具有相对较高的能量密度但具有相对低的速率能力 与两个集电器的相对侧接触。 在短路和滥用条件下，本阴极设计比具有相对较高能量密度的阴极活性材料但是单独具有相对较低速率能力的电池相对较为安全。 优选的阴极是：CFx /集电器/ SVO /集电器/ CFx。 由于CFx和SVO阴极电池在不同的电压曲线下放电，SVO提供了放电结束寿命指示。 这可用作可植入医疗设备（例如心脏起搏器）的替换终止指示符（ERI）。

    A novel method to determine the state of charge and remaining life of lithium batteries used in oilfield services applications
    5.
    发明公开
    A novel method to determine the state of charge and remaining life of lithium batteries used in oilfield services applications 失效
    在油田供应用于确定充电状态和新方法的剩余寿命Lithum电池

    公开(公告)号：EP0891000A3

    公开(公告)日：2004-06-30

    申请号：EP98305373.7

    申请日：1998-07-06

    申请人： GECO A.S.

    发明人： Milewits, Marvin

    IPC分类号： H01M6/50 ,  H01M6/14

    CPC分类号： H01M6/14 ,  H01M6/50 ,  H01M6/5055 ,  H01M2200/00

    摘要： The present invention relates to a new method of constructing and interrogating electrochemical cells, especially those having lithium thionyl chloride (Li/SOCl 2 ) chemistry, that permits rapid estimation of remaining discharge capacity. A preferred embodiment of the present invention employs cells with specially modified anode structures and a method for testing the state of charge and remaining life of these cells, as well as depassivating these cells, prior to their intended use or re-use. The test method can be performed using an inexpensive DC circuit and voltmeter at ambient conditions anytime prior to cell use or re-use. There is also disclosed an oilfield services downhole tool battery having a remaining life indicator comprising a housing containing one or more electrochemical cells having an internal anode means which selectively gets consumed at a predetermined state of discharge thereby creating a step change in the cell output voltage which is imperceptible to the tool while in operation at downhole temperatures, and which is capable of being detected at the surface under ambient temperatures upon administering of a suitable current load enabling the user to determine the remaining battery life at the surface prior to subsequent use or reuse of the battery in downhole oilfield services operations.

    Sandwich cathode design using mixtures of two active materials for alkali metal or ion electrochemical cells
    6.
    发明公开
    Sandwich cathode design using mixtures of two active materials for alkali metal or ion electrochemical cells 审中-公开
    Sandwich-Kathode Bauweise mit Mischungen aus aktivenMaterialienfürAlkalimetall oder Ionen-Batterie

    公开(公告)号：EP1207568A2

    公开(公告)日：2002-05-22

    申请号：EP01127527.8

    申请日：2001-11-17

    申请人： WILSON GREATBATCH LTD.

    发明人： Gan, Hong ,  Takeuchi, Esther S.

    IPC分类号： H01M4/02 ,  H01M4/36 ,  H01M6/16 ,  H01M4/48

    CPC分类号： H01M4/13 ,  A61N1/378 ,  H01M4/06 ,  H01M4/08 ,  H01M4/34 ,  H01M4/366 ,  H01M4/48 ,  H01M4/581 ,  H01M4/582 ,  H01M4/5825 ,  H01M4/5835 ,  H01M4/661 ,  H01M4/667 ,  H01M6/16 ,  H01M6/5055 ,  H01M2004/028 ,  H01M2300/0037

    摘要： A new sandwich cathode design is provided having a first cathode structure of a first cathode active material of a relatively low energy density but of a relatively high rate capability, for example SVO, mixed with a second cathode active material having a relatively high energy density but a relatively low rate capability, for example CF x , with the percentage of SVO being less than that of CF x and sandwiched between two current collectors. Then, a second cathode mixture of SVO and CF x active materials is contacted to the outside of the current collectors. However, the percentage of SVO to CF x is greater in the second structure than in the first. Such an exemplary cathode design might look like:
       (100-y)% SVO + y% CF x , wherein 0 ≤ y ≤ 100/current collector/(100-x)% SVO + x% CF x , wherein 0 ≤ x ≤ 100/current collector/(100-y)% SVO + y% CF x , wherein 0 ≤ y ≤ 100, and wherein the ratio of x to y is selected from the group consisting of y

    摘要翻译： 提供了一种新的夹层阴极设计，其具有第一阴极结构的第一阴极活性材料，其第一阴极活性材料具有相对低的能量密度但具有相对较高速率的能力，例如SVO，与具有较高能量密度的第二阴极活性材料混合，但是 相对较低的速率能力，例如CFx，SVO的百分比小于CFx的百分比并夹在两个集电器之间。 然后，SVO和CF x活性物质的第二阴极混合物与集电体的外部接触。 然而，SVO对CFx的百分比在第二种结构中比在第一种结构中要高。 这样的示例性阴极设计可能看起来像：（100-y）％SVO + y％CFx，其中0≤y≤100/集电器/（100-x）％SVO + x％CFx，其中0≤x≤100/ 集电体/（100-y）％SVO + y％CFx，其中0≤y≤100，并且其中x与y的比率选自y

    ELECTROCHEMICAL CELL HAVING END-OF-LIFE WARNING MEANS
    9.
    发明公开
    ELECTROCHEMICAL CELL HAVING END-OF-LIFE WARNING MEANS 失效
    与显示设备为生命的结束电化学电池。

    公开(公告)号：EP0102382A1

    公开(公告)日：1984-03-14

    申请号：EP83901032.0

    申请日：1983-02-14

    申请人： GTE Products Corporation

    发明人： GOEBEL, Franz ,  McDONALD, Robert C.

    IPC分类号： H01M4 ,  H01M6

    CPC分类号： H01M6/14 ,  H01M4/12 ,  H01M6/5055

    摘要： Une cellule électrochimique primaire (1) fonctionne de façon à donner un avertissement vers la fin de la décharge de la cellule, en signalant la fin prochaine de la durée de vie de la cellule. La cellule comprend une structure cathodique tubulaire (6) en carbone poreux, agencée dans une enceinte métallique (4) de la cellule avec une structure anodique (10) et une solution électrolytique (3). La structure anodique (10) comprend un premier et un deuxième éléments électrochimiquement actifs, par exemple, du lithium et du calcium, ayant des potentiels d'oxydation différents à l'intérieur de la cellule et qui se consument par une action électrochimique à l'intérieur de la cellule pendant la décharge de la cellule. La consommation des éléments actifs pendant la décharge de la cellule a pour conséquence l'établissement de tensions de fonctionnement différentes et distinctes pour la cellule. Les éléments actifs sont agencés l'un par rapport à l'autre de telle façon que l'élément actif ayant un potentiel d'oxydation plus élevé (c'est-à-dire, le lithium) se consume avant l'autre élément actif (c'est-à-dire, le calcium). Le changement de valeur de la tension de fonctionnement de la cellule, dû à la consommation successive des deux éléments actifs, est détecté pour donner une indication qui signale la fin prochaine de la durée de vie de la cellule.