公开(公告)号：US08153293B2

公开(公告)日：2012-04-10

申请号：US12967617

申请日：2010-12-14

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

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

IPC: H01M4/02 ,  H01M2/18 ,  H01M4/58 ,  H01M4/66

CPC classification number: H01M10/0431 ,  H01M4/136 ,  H01M4/366 ,  H01M4/54 ,  H01M4/5825 ,  H01M4/661 ,  H01M4/667 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0583 ,  H01M10/0585 ,  Y10T29/49108

Abstract: 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.

Abstract translation: 描述了具有以下配置的阴极的新设计：SVO /第一集电器/ CFx /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。

公开(公告)号：US20110183215A1

公开(公告)日：2011-07-28

申请号：US11695253

申请日：2007-04-02

Applicant: Amy C. Marschilok ,  Randolph A. Leising ,  Esther S. Takeuchi

Inventor： Amy C. Marschilok ,  Randolph A. Leising ,  Esther S. Takeuchi

IPC: H01M10/02 ,  H01M4/64 ,  H01M4/54

CPC classification number: H01M4/54 ,  H01M4/134 ,  H01M4/661 ,  H01M4/663 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569

Abstract: A new cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. Each of the formulations exists as a distinct cathode layer. After each layer is pressed or sheeted individually, a first one of the layers is contacted to a current collector. The other layer is then contacted to the opposite side of the layer contacting the current collector. Therefore, by using electrodes comprised of layers, where each layer is optimized for a desired characteristic (i.e. high capacity, high power, high stability), the resulting battery will display improved function over a wide range of applications. Such an exemplary cathode is comprised of: SVO (100−x %)/SVO (100−y %)/current collector/SVO (100−y %)/SVO (100−x %), wherein x and y are different and represent percentages of non-active materials.

Abstract translation: 提供了一种新的阴极设计，其包括在至少两种不同配方中与粘合剂和导电稀释剂混合的正极活性材料。 每种制剂作为独特的阴极层存在。 在每个层被单独压制或成片之后，第一层与集电器接触。 然后将另一层与接触集电器的层的相对侧接触。 因此，通过使用由层构成的电极，其中每个层针对期望的特性（即高容量，高功率，高稳定性）进行优化，所得到的电池将在广泛的应用中显示改进的功能。 这样的示例性阴极包括：SVO（100-x％）/ SVO（100-y％）/集电器/ SVO（100-y％）/ SVO（100-x％），其中x和y不同， 代表非活性物质的百分比。

公开(公告)号：US07776470B2

公开(公告)日：2010-08-17

申请号：US11535139

申请日：2006-09-26

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

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

IPC: H01M4/02

CPC classification number: H01M4/06 ,  H01M4/08 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/38 ,  H01M4/382 ,  H01M4/405 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/54 ,  H01M4/5815 ,  H01M4/587 ,  H01M4/661 ,  H01M4/663 ,  H01M4/667 ,  H01M4/669 ,  H01M4/70 ,  H01M6/16 ,  H01M6/5055 ,  H01M10/052 ,  H01M2004/021 ,  H01M2006/5094 ,  H01M2010/4292

Abstract: Improvements in the performance of lithium electrochemical cells comprising a first cathode active material of a relatively high energy density but of a relatively low rate capability, for example CFx, contacted to one side of a current collector and with a second cathode active material having a relatively low energy density but of a relatively high rate capability, for example SVO, contacted to the opposite current collector side are described. An exemplary cathode has the configuration: SVO/first current collector/CFx/second current collector/SVO, and wherein the anodic coulombic capacity does not exceed the total coulombic capacities of the SVO and CFx by greater than 25%. Manganese oxide (MnO2) is another typically used cathode active material in lieu of SVO, and the present invention is applicable to lithium cells of that system as well.

Abstract translation: 包括具有相对较高能量密度但具有相对较低速率能力的第一阴极活性材料（例如CF x）的锂电化学电池的性能的改进，该第一阴极活性材料与集电器的一侧接触并具有与第一正极活性材料相对 描述了与相对集电器侧接触的低能量密度但具有相对较高速率能力的SVO，例如SVO。 示例性阴极具有以下配置：SVO /第一集电器/ CFx /第二集电器/ SVO，并且其中阳极库仑容量不超过SVO和CF x的总库仑容量大于25％。 氧化锰（MnO 2）是代替SVO的另一种典型使用的阴极活性材料，本发明也适用于该系统的锂电池。

公开(公告)号：US07754111B1

公开(公告)日：2010-07-13

申请号：US11811556

申请日：2007-06-11

Applicant: Jingsi Yang ,  Esther S. Takeuchi ,  Randolph Leising

Inventor： Jingsi Yang ,  Esther S. Takeuchi ,  Randolph Leising

IPC: H01B1/06

CPC classification number: H01B1/08 ,  C01G31/006 ,  C01P2002/72 ,  C01P2006/40 ,  H01M4/06 ,  H01M4/483 ,  H01M4/54 ,  H01M6/16

Abstract: An electrochemical cell comprising a lithium anode and a fluorinated silver vanadium oxide cathode activated with a nonaqueous electrolyte is described. The fluorinated silver vanadium oxide is of the formula Ag4V2O11-xFx, wherein x ranges from about 0.02 to about 0.3.

Abstract translation: 描述了一种包含锂阳极和用非水电解液活化的氟化银钒氧化物阴极的电化学电池。 氟化银钒氧化物具有式Ag4V2O11-xFx，其中x为约0.02至约0.3。

公开(公告)号：US20090117457A1

公开(公告)日：2009-05-07

申请号：US11934098

申请日：2007-11-02

Applicant: Steven Davis ,  Ashish Shah ,  Donald Kaiser ,  Hong Gan ,  Esther S. Takeuchi

Inventor： Steven Davis ,  Ashish Shah ,  Donald Kaiser ,  Hong Gan ,  Esther S. Takeuchi

IPC: H01M2/00

CPC classification number: H01M4/13 ,  H01M2/0207 ,  H01M4/366 ,  H01M4/485 ,  H01M4/583 ,  H01M4/661 ,  H01M4/72 ,  H01M6/16 ,  H01M10/044 ,  Y10T29/49108

Abstract: An electrochemical cell comprising a casing, an anode comprising anode active material, a cathode, and an electrolyte solution activating the cathode and the anode is described. In one embodiment, the cathode is comprised of a first current collector, first and second sheets of a first cathode active material in contact with the first current collector, a second current collector, third and forth sheets of the first cathode active material in contact with the second current collector, and a first sheet of a second cathode active material in non-adherent and congruent contact with the second and third sheets of the first cathode active material.

Abstract translation: 描述了包括壳体，包括阳极活性材料的阳极，阴极和激活阴极和阳极的电解质溶液的电化学电池。 在一个实施例中，阴极包括与第一集电器接触的第一集电器，第一和第二片与第一集电器接触的第一阴极活性材料片，第二集电器，第三和第四片第一阴极活性材料与第 第二集电器和与第一和第三片第一阴极活性材料非粘着和一致接触的第二正极活性材料片。

公开(公告)号：US07432001B1

公开(公告)日：2008-10-07

申请号：US11007933

申请日：2004-12-09

Applicant: Esther S. Takeuchi ,  Randolph Leising ,  Marcus Palazzo

Inventor： Esther S. Takeuchi ,  Randolph Leising ,  Marcus Palazzo

IPC: H01M2/22 ,  H01M4/54

CPC classification number: H01M2/266 ,  H01M4/131 ,  H01M4/133 ,  H01M4/485 ,  H01M4/54 ,  H01M4/583 ,  H01M6/16

Abstract: The prevention of lithium clusters from bridging between the negative and positive portions of a cell during discharge is described. This is done by limiting the amount of electrolyte in the cell, thereby eliminating excess electrolyte pooling above the cell stack. It is in this excess electrolyte that a relatively higher Li+ ion concentration can occur, creating an anodically polarized region resulting in the reduction of lithium ions on the negative and positive surfaces as the concentration gradient is relaxed. Typically, a lithium ion concentration gradient sufficient to cause lithium cluster formation is induced by the high rate, intermittent discharge of a lithium/silver vanadium oxide (Li/SVO) cell.

Abstract translation: 描述了在放电期间防止锂簇在电池的负极部分和正极部分之间的桥接。 这通过限制电池中的电解质的量来实现，从而消除电池堆上方的多余的电解液池。 在这种过量的电解质中，可能发生相对较高的Li + +离子浓度，产生阳极极化区域，导致当浓度梯度松弛时，负极和正极表面上的锂离子的还原。 通常，通过锂/银钒氧化物（Li / SVO）电池的高速率间歇放电，引起足以引起锂簇形成的锂离子浓度梯度。

公开(公告)号：US07422826B2

公开(公告)日：2008-09-09

申请号：US10819511

申请日：2004-04-07

Applicant: Weibing Xing ,  Esther S. Takeuchi

Inventor： Weibing Xing ,  Esther S. Takeuchi

IPC: H01M6/18

CPC classification number: H01M4/485 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/581 ,  H01M4/5815 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/058 ,  H01M10/0587 ,  H01M2300/0085 ,  Y10T29/49108

Abstract: A single step, in situ curing method for making gel polymer lithium ion rechargeable cells and batteries is described. This method used a precursor solution consisting of monomers with multiple functionalities such as multiple acryloyl functionalities, a free-radical generating activator, nonaqueous solvents such as ethylene carbonate and propylene carbonate, and a lithium salt such as LiPF6. The electrodes are prepared by slurry-coating a carbonaceous material such as graphite onto an anode current collector and a lithium transition metal oxide such as LiCoO2 onto a cathode current collector, respectively. The electrodes, together with a highly porous separator, are then soaked with the polymer electrolyte precursor solution and sealed in a cell package under vacuum. The whole cell package is heated to in situ cure the polymer electrolyte precursor. The resulting lithium ion rechargeable cells with gelled polymer electrolyte demonstrate excellent electrochemical properties such as high efficiency in material utilization, high Coulombic efficiency, good rate capability, and good cyclability.

Abstract translation: 描述了用于制备凝胶聚合物锂离子可再充电电池和电池的单步骤原位固化方法。 该方法使用由具有多个官能团的单体组成的前体溶液，例如多个丙烯酰基官能团，自由基产生活化剂，非水溶剂如碳酸亚乙酯和碳酸亚丙酯，以及锂盐如LiPF 6 。 电极通过将诸如石墨的碳质材料浆料涂覆到阴极集电器上而分别制备到负极集电体和锂过渡金属氧化物如LiCoO 2 N 2上。 然后将电极与高度多孔的隔板一起用聚合物电解质前体溶液浸泡并在真空下密封在电池组件中。 将整个电池组件加热到原位固化聚合物电解质前体。 所得到的具有胶凝聚合物电解质的锂离子可再充电电池表现出优异的电化学性质，如材料利用效率高，库仑效率高，速率能力好，循环性好。

公开(公告)号：US07375496B2

公开(公告)日：2008-05-20

申请号：US10646216

申请日：2003-08-22

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

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

IPC: H01M10/44

CPC classification number: H01M10/44 ,  H01M4/40 ,  H01M4/485 ,  H01M4/54 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/4264

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 35 % 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，使大约35％至70％的DOD区域中的电压延迟和不可逆Rdc生长显着最小化（如果不是完全消除）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。

公开(公告)号：US07033707B2

公开(公告)日：2006-04-25

申请号：US10368658

申请日：2003-02-19

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M10/40

CPC classification number: H01M10/0567 ,  H01M6/168 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  Y10T29/49108

Abstract: A lithium electrochemical cell of either a primary or a secondary chemistry activated with an electrolyte having a cyclic carbonate of a ring size equal to or larger than a six-member ring is described. The cyclic carbonate helps to make the anode passivation film ionically conductive to thereby eliminate voltage delay during pulse discharge and to reduce Rdc. Such a cell is particularly well suited for powering an implantable medical device, such as a cardiac defibrillator.

公开(公告)号：US07005214B2

公开(公告)日：2006-02-28

申请号：US10286726

申请日：2002-11-01

Applicant: Esther S. Takeuchi ,  Bruce Platt ,  Sally Ann Smesko ,  Eric Ziarniak ,  Mark Roy

Inventor： Esther S. Takeuchi ,  Bruce Platt ,  Sally Ann Smesko ,  Eric Ziarniak ,  Mark Roy

IPC: H01M4/66 ,  H01M4/75 ,  H01M4/48 ,  H01M4/60

CPC classification number: H01M4/667 ,  H01M2/0285 ,  H01M4/04 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/54 ,  H01M4/58 ,  H01M4/583 ,  H01M4/5835 ,  H01M4/623 ,  H01M4/625 ,  H01M4/626 ,  H01M4/661 ,  H01M6/16 ,  H01M10/05 ,  H01M2004/028 ,  H01M2006/5094 ,  Y10T29/49108 ,  Y10T29/49115

Abstract: A lithium/fluorinated carbon electrochemical cell having the CFx material supported on a titanium current collector screen sputter coated with a noble metal is described. The gold, iridium, palladium, platinum, rhodium and ruthenium-coated titanium current collector provides the cell with higher rate capability, even after exposure to high temperatures, in comparison to cells of a similar chemistry having the CFx contacted to a titanium current collector painted with a carbon coating.

Abstract translation: 描述了一种锂/氟化碳电化学电池，其具有支撑在溅射涂覆有贵金属的钛电流收集器屏幕上的CF xS材料。 金，铱，钯，铂，铑和钌涂覆的钛电流集电体即使在暴露于高温之后，也提供了具有更高速率能力的电池，与具有CF x x的类似化学物质的电池相比较 >与涂有碳涂层的钛电流体接触。