公开(公告)号：US07033707B2

公开(公告)日：2006-04-25

申请号：US10368658

申请日：2003-02-19

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M10/40

CPC分类号： H01M10/0567 ,  H01M6/168 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  Y10T29/49108

摘要： 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：US06936379B2

公开(公告)日：2005-08-30

申请号：US10290858

申请日：2002-11-08

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： A61M1/30 ,  A61N1/37 ,  H01M4/06 ,  H01M4/131 ,  H01M4/133 ,  H01M4/40 ,  H01M4/48 ,  H01M4/50 ,  H01M4/54 ,  H01M4/58 ,  H01M4/583 ,  H01M4/66 ,  H01M6/16 ,  H01M6/50 ,  H01M10/48

CPC分类号： A61N1/3708 ,  H01M4/131 ,  H01M4/133 ,  H01M4/40 ,  H01M4/405 ,  H01M4/48 ,  H01M4/50 ,  H01M4/54 ,  H01M4/58 ,  H01M4/581 ,  H01M4/583 ,  H01M4/661 ,  H01M4/663 ,  H01M4/669 ,  H01M6/164 ,  H01M6/166 ,  H01M10/48

摘要： A method for providing a physician with an elective replacement indicator (ERI) for an implantable medical device is described. The medical device is powered by an electrochemical having a lithium anode coupled to a sandwich cathode comprising the configuration: SVO/current collector/CFx, with the SVO facing the anode. The indicator is predicated on when the cell's discharge capacity is nearing end-of-life (EOL) based on the theoretical capacity and the discharge efficiency of the SVO and CFx active materials. This serves as an indicator when it is time to replace the medical device.

摘要翻译： 描述了一种用于向医生提供用于可植入医疗装置的选择性替换指示器（ERI）的方法。 医疗设备由具有耦合到夹心式阴极的锂阳极的电化学器件驱动，其包括以下配置：SVO /集电器/ CF x x，其中SVO面向阳极。 该指标基于电池的放电容量是否接近寿命终止（EOL），基于理论容量和SVO和CF x活性材料的放电效率。 当更换医疗设备时，可以作为指标。

公开(公告)号：US06790561B2

公开(公告)日：2004-09-14

申请号：US10096040

申请日：2002-03-12

申请人： Hong Gan ,  Esther S. Takeuchi ,  Robert S. Rubino

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

IPC分类号： H01M470

CPC分类号： H01M10/0587 ,  H01M4/04 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/0416 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/362 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/5835 ,  H01M4/742 ,  H01M6/10 ,  H01M6/16 ,  Y10T29/49115

摘要： The invention is directed to an electrochemical cell having at least one of its electrodes produced by coating a slurry mixture of an active material, possibly a conductive additive, and a binder dispersed in a solvent and contacted to a perforated current collector foil. It is particularly important that the active slurry does not move through the perforations of the current collector. For this reason, a barrier is placed against the opposite side of the current collector to block the perforations as the current collector is being coated with the slurry. After volatilizing the solvent, a second, different active material is coated to the opposite side of the current collector, either as a slurry, a pressed powder, a pellet or a free standing sheet. An example of this is a cathode having a configuration of: SVO/current collector CFx. The opposed active materials on the current collector can also be of the same chemistry.

摘要翻译： 本发明涉及一种电化学电池，其具有通过涂覆活性材料（可能的导电添加剂）的浆料混合物和分散在溶剂中并与穿孔集电器箔接触的粘合剂制成的至少一个电极。 特别重要的是，活性浆料不会流过集电器的穿孔。 因此，当集流器被浆料涂覆时，阻挡件抵靠集电器的相反侧放置以阻挡穿孔。 挥发溶剂后，将第二种不同的活性材料作为浆料，压粉，颗粒或独立的片材涂覆到集电器的相对侧。 其示例是具有以下配置的阴极：SVO /集电体CFx。 集电器上的相对的活性材料也可以具有相同的化学性质。

公开(公告)号：US06743547B2

公开(公告)日：2004-06-01

申请号：US10054584

申请日：2001-11-13

申请人： Hong Gan ,  Sally Ann Smesko ,  Esther S. Takeuchi

发明人： Hong Gan ,  Sally Ann Smesko ,  Esther S. Takeuchi

IPC分类号： H01M400

CPC分类号： H01M10/0568 ,  H01M4/02 ,  H01M4/04 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/06 ,  H01M4/362 ,  H01M4/366 ,  H01M4/405 ,  H01M4/483 ,  H01M4/505 ,  H01M4/525 ,  H01M4/54 ,  H01M4/5815 ,  H01M4/5825 ,  H01M4/5835 ,  H01M4/661 ,  H01M4/667 ,  H01M4/669 ,  H01M6/16 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2300/002 ,  H01M2300/0025 ,  H01M2300/0042

摘要： An electrode having the configuration: first active material/current collector/second active material is described. One of the electrode active materials in a cohesive form of active particles being firmly held together as part of the same mass is incapable of moving through the current collector to the other side thereof. However, in an un-cohesive form of active particles not being firmly held together as part of a mass, the one electrode active material is capable of communication through the current collector. The other or second active material is in a form in-capable of communication through the current collector, whether it is in a cohesive or un-cohesive powder form. Then, the assembly of first active material/current collector/second active material is pressed from either the direction of the first electrode active material to the second electrode active material, or visa versa.

摘要翻译： 对具有第一活性物质/集电体/第二活性物质的构造的电极进行说明。 作为相同质量的一部分牢固地保持在一起的粘合形式的活性颗粒的电极活性材料之一不能通过集电器移动到另一侧。 然而，在作为质量的一部分不牢固地固定在一起的非粘结形式的活性颗粒的情况下，一个电极活性材料能够通过集电器连通。 另一种或第二活性材料是一种能够通过集电器连通的形式，无论其是内聚或非粘性粉末形式。 然后，将第一活性物质/集电体/第二活性物质的组装从第一电极活性物质的方向压向第二电极活性物质，反之亦然。

公开(公告)号：US06692871B2

公开(公告)日：2004-02-17

申请号：US09969389

申请日：2001-10-02

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M458

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 rate density but a relatively low energy capability alone. A preferred cathode is: CFx/current collector/SVO/current collector/CFx. The SVO provides the discharge end of life indication since CFx 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，并且具有相对较高能量密度但具有相对较低速率能力的第二阴极活性材料 与两个集电器的相对侧接触。 本发明的阴极设计在短路和滥用条件下相比于具有相对高的速率密度但是相对较低的能量能力的阴极活性材料的电池相对更安全。 优选的阴极是：CFx /集电体/ SVO /集电体/ CFx。 由于CFx和SVO阴极单元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装置（例如心脏起搏器）的替换终止指示器（ERI）。

公开(公告)号：US06673493B2

公开(公告)日：2004-01-06

申请号：US09970341

申请日：2001-10-03

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M464

CPC分类号： H01M4/131 ,  H01M4/06 ,  H01M4/08 ,  H01M4/34 ,  H01M4/366 ,  H01M4/48 ,  H01M4/525 ,  H01M4/581 ,  H01M4/582 ,  H01M4/5825 ,  H01M4/5835 ,  H01M4/661 ,  H01M4/667 ,  H01M6/16 ,  H01M6/5055 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2300/0037 ,  Y10T29/49108

摘要： A new sandwich cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. The formulations are then individually pressed on opposite sides of a current collector, so that both are in direct contact with the current collector. Preferably, the active formulation on the side of the current collector facing the anode is of a lesser percentage of the active material than that on the opposite side of the current collector. Such an exemplary cathode design might look like: SVO (100-x % active)/current collector/SVO (100-y % active)/current collector/SVO (100-x % active), wherein x is greater than y.

摘要翻译： 提供了一种新的夹层阴极设计，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阴极活性材料。 然后将配方单独地压在集电器的相对侧上，使得它们都与集电器直接接触。 优选地，集电器面对阳极一侧的活性制剂的活性物质比集电体相反侧的活性物质的百分比更小。 这样的示例性阴极设计可能看起来像：SVO（100-x％有效）/集电器/ SVO（100-y％活性）/集电器/ SVO（100-x％活性），其中x大于y。

公开(公告)号：US06605385B2

公开(公告)日：2003-08-12

申请号：US09816205

申请日：2001-03-22

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M460

CPC分类号： H01M6/16 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/40 ,  H01M4/485 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/62 ,  H01M4/624 ,  H01M4/625 ,  H01M4/661 ,  H01M6/168 ,  H01M6/30 ,  H01M10/0525 ,  H01M10/4235

摘要： An electrochemical cell of either a primary or a secondary chemistry, is described. In either case, the cell has a negative electrode of lithium or of an anode material which is capable of intercalating and de-intercalating lithium coupled with a positive electrode of a cathode active material. A carbonate compound is mixed with either the anode material or the cathode active material prior to contact with its current collector. The resulting electrode couple is activated by a nonaqueous electrolyte. The electrolyte flows into and throughout the electrodes causing the carbonate additive to dissolve in the electrolyte. The carbonate solute is then able to contact the lithium to provide an electrically insulating and ionically conducting passivation layer thereon.

公开(公告)号：US06562515B2

公开(公告)日：2003-05-13

申请号：US09813569

申请日：2001-03-21

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M460

CPC分类号： H01M4/13 ,  H01M4/04 ,  H01M4/62 ,  H01M6/16 ,  H01M6/168 ,  H01M6/30 ,  H01M10/052 ,  H01M10/44

摘要： An electrochemical cell of either a primary or a secondary chemistry, is described. In either case, the cell has a negative electrode of lithium or of an anode material which is capable of intercalating and de-intercalating lithium coupled with a positive electrode of a cathode active material. A nitrate compound is mixed with either the anode material or the cathode active material prior to contact with its current collector. The resulting electrode couple is activated by a nonaqueous electrolyte. The electrolyte flows into and throughout the electrodes causing the nitrate additive to dissolve in the electrolyte. The nitrate solute is then able to contact the lithium to provide an electrically insulating and ionically conducting passivation layer thereon.

公开(公告)号：US06528207B2

公开(公告)日：2003-03-04

申请号：US09765266

申请日：2001-01-18

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M460

CPC分类号： H01M4/62 ,  H01M4/13 ,  H01M4/48 ,  H01M4/58 ,  H01M6/16 ,  H01M6/168 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/4235 ,  Y10T29/49108

摘要： An electrochemical cell of either a primary or a secondary chemistry, is described. In either case, the cell has a negative electrode of lithium or of an anode material which is capable of intercalating and de-intercalating lithium coupled with a positive electrode of a cathode active material. A nitrite compound is mixed with either the anode material or the cathode active material prior to contact with its current collector. The resulting electrode couple is activated by a non-aqueous electrolyte. The electrolyte flows into and throughout the electrodes causing the nitrite compound to dissolve in the electrolyte. The nitrite solute is then able to contact the lithium to provide an electrically insulating and ionically conducting passivation layer thereon.

公开(公告)号：US06174629B1

公开(公告)日：2001-01-16

申请号：US09394316

申请日：1999-09-10

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M616

CPC分类号： H01M10/0567 ,  H01M6/168 ,  H01M10/0525

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 dicarbonate additive to an electrolyte comprising an alkali metal salt dissolved in a solvent mixture that includes ethylene carbonate, dimethyl carbonate, ethylmethyl carbonate and diethyl carbonate. The preferred additive is an alkyl dicarbonate compound.

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二碳酸酯添加剂来实现所述的益处。 优选的添加剂是二碳酸烷基酯化合物。