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    Discharge methodologies for optimizing the performance of lithium/silver vanadium oxide cells
    31.
    发明授权
    Discharge methodologies for optimizing the performance of lithium/silver vanadium oxide cells 失效
    用于优化锂/银氧化钒电池性能的放电方法

    公开(公告)号：US06930468B2

    公开(公告)日：2005-08-16

    申请号：US10658731

    申请日：2003-09-09

    Applicant: Kenneth Syracuse ,  Noelle Waite ,  Hong Gan ,  Esther S. Takeuchi

    Inventor： Kenneth Syracuse ,  Noelle Waite ,  Hong Gan ,  Esther S. Takeuchi

    IPC: H01M4/48 ,  H01M4/485 ,  H01M4/54 ,  H01M4/58 ,  H01M6/16 ,  H01M6/50 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

    CPC classification number: H01M6/50 ,  H01M4/485 ,  H01M4/54 ,  H01M4/5825 ,  H01M6/16 ,  H01M6/5033 ,  H01M10/4264 ,  H01M10/44

    Abstract: It is known that reforming implantable defibrillator capacitors at least partially restores and preserves their charging efficiency. An industry-recognized standard is to reform implantable capacitors by pulse discharging the connected electrochemical cell about once every three months throughout the useful life of the medical device. A Li/SVO cell typically powers such devices. The present invention relates to methodologies for significantly minimizing, if not entirely eliminating, the occurrence of voltage delay and irreversible Rdc growth in the about 25% to 70% DOD region by subjecting Li/SVO cells to novel discharge regimes. At the same time, the connected capacitors in the cardiac defibrillator are reformed to maintain them at their rated breakdown voltages.

    Abstract translation: 众所周知，重组可植入除颤器电容器至少部分恢复并保持其充电效率。 行业公认的标准是通过在医疗设备的整个使用寿命期间每三个月大约一次脉冲地排放连接的电化学电池来重建可植入电容器。 Li / SVO单元通常为这些设备供电。 本发明涉及通过使Li / SVO细胞经受新颖的放电方式，在大约25％至70％的DOD区域中显着地最小化（如果不是完全消除）电压延迟和不可逆Rdc生长的方法。 同时，将心脏除颤器中连接的电容器进行重整，以将其维持在额定击穿电压。

    Nonaqueous organic electrolytes for low temperature discharge of rechargeable electrochemical cells
    36.
    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

    Applicant: Hong Gan ,  Esther S. Takeuchi ,  Robert Rubino

    Inventor： Hong Gan ,  Esther S. Takeuchi ,  Robert Rubino

    IPC: H01M616

    CPC classification number: H01M10/0525 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0569 ,  Y10T29/49108

    Abstract: 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.

    Abstract translation: 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。

    Autoclavable electrochemical cell
    37.
    发明授权
    Autoclavable electrochemical cell 失效
    高压灭菌电化学电池

    公开(公告)号：US06733928B2

    公开(公告)日：2004-05-11

    申请号：US09915406

    申请日：2001-07-27

    Applicant: Esther S. Takeuchi

    Inventor： Esther S. Takeuchi

    IPC: H01M1040

    CPC classification number: H01M4/667 ,  H01M2/1653 ,  H01M2/1666 ,  H01M4/48 ,  H01M4/58 ,  H01M4/5835 ,  H01M4/66 ,  H01M4/661 ,  H01M4/663 ,  H01M4/669 ,  H01M6/16 ,  H01M6/164 ,  H01M2300/0037

    Abstract: An autoclavable elctrochemical cell which may be used in an implantable medical device. The anode active material is lithium or other material from groups IA and IIA of the Periodic Table and having a melting point greater than about 150 degrees C. The cathode active material is silver vanadium oxide or other metal oxide or carbon monoflouride. The solvent for the electrolyte has a boiling point greater than about 100 degrees C. and a dielectric constant greater than about 5 so that the cell may be dimensionally and chemically stable during repeated exposures of about one hour each to the autoclaving temperatures.

    Abstract translation: 可用于可植入医疗装置的可高压消毒的电化学电池。 阳极活性材料是锂或来自元素周期表IA和IIA族的其它材料，其熔点大于约150℃。阴极活性材料是银钒氧化物或其它金属氧化物或单氟化碳。 用于电解质的溶剂具有大于约100℃的沸点和大于约5的介电常数，使得电池在反复暴露约1小时至高压灭菌温度期间可以在尺寸和化学上稳定。

    Double current collector cathode design using mixtures of two active materials for alkali metal or ion electrochemical cells
    39.
    发明授权
    Double current collector cathode design using mixtures of two active materials for alkali metal or ion electrochemical cells 有权
    双集电极阴极设计使用两种活性材料的混合物用于碱金属或离子电化学电池

    公开(公告)号：US06692865B2

    公开(公告)日：2004-02-17

    申请号：US10008823

    申请日：2001-10-24

    Applicant: Hong Gan ,  Esther S. Takeuchi

    Inventor： Hong Gan ,  Esther S. Takeuchi

    IPC: H01M400

    CPC classification number: 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

    Abstract: 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 CFx, with the percentage of SVO being less than that of CFx and sandwiched between two current collectors. Then, a second cathode mixture of SVO and CFx active materials is contacted to the outside of the current collectors. However, the percentage of SVO to CFx is greater in the second structure than in the first. Such an exemplary cathode design might look like: (100−y)% SVO+y% CFx, wherein 0≦y≦100/current collector/(100−x)% SVO+x% CFx, wherein 0≦x≦100/current collector/(100−y)% SVO+y% CFx, wherein 0≦y≦100, and wherein the ratio of x to y is selected from the group consisting of y

    Abstract translation: 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，该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，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，在第二个结构中，SVO对CFx的比例大于第一个结构。 这种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

    Method for providing a cathode of a mixed phase metal oxide
    40.
    发明授权
    Method for providing a cathode of a mixed phase metal oxide 有权
    提供混合相金属氧化物阴极的方法

    公开(公告)号：US06685752B2

    公开(公告)日：2004-02-03

    申请号：US10000197

    申请日：2001-11-02

    Applicant: Randolph A. Leising ,  Esther S. Takeuchi

    Inventor： Randolph A. Leising ,  Esther S. Takeuchi

    IPC: H01M600

    CPC classification number: H01M4/131 ,  H01M4/485 ,  H01M4/54 ,  H01M4/5825 ,  H01M4/625 ,  H01M4/626 ,  H01M6/16 ,  Y10T29/49108 ,  Y10T29/49114

    Abstract: An electrochernical cell comprising an anode of a Group IA metal and a cathode of a mixed phase metal oxide prepared from a combination of starting materials comprising vanadium oxide and a mixture of at least one of a decomposable silver-containing constituent and a decomposable copper-containing constituent is described. The starting materials are mixed together to form a homogeneous admixture that is not further mixed once decomposition heating begins. The resulting cathode material is particularly useful for implantable medical applications.

    Abstract translation: 一种电穴电池，其包含IA族金属的阳极和由包含氧化钒和至少一种可分解​​的含银组分和可分解铜的混合物组成的混合相金属氧化物的阴极 描述成分。 将原料混合在一起形成均匀的混合物，一旦分解加热开始就不再混合。 所得阴极材料对于可植入医疗应用特别有用。

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