公开(公告)号：US07939199B1

公开(公告)日：2011-05-10

申请号：US11736039

申请日：2007-04-17

Applicant: Hong Gan ,  Joseph M. Lehnes ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Joseph M. Lehnes ,  Esther S. Takeuchi

IPC: H01M10/32

CPC classification number: H01M4/131 ,  H01M4/366 ,  H01M4/38 ,  H01M4/382 ,  H01M4/485 ,  H01M4/505 ,  H01M4/5815 ,  H01M4/583 ,  H01M4/623 ,  H01M6/16 ,  H01M10/052 ,  H01M2004/021 ,  H01M2300/0037

Abstract: An electrochemical cell comprising a lithium anode, a silver vanadium oxide cathode having a relatively lower basis weight, and an electrolyte activating the anode and the cathode is described. By limiting the amount of cathode active material per unit area (i.e. basis weight) facing the anode in the Li/SVO cell, the magnitude of the passivating film growth at the solid-electrolyte interphase (SEI) and its relative impermeability to lithium ion diffusion is reduced. Therefore, by using a cathode of a relatively low basis weight active material, it is possible to eliminate or significantly reduce undesirable irreversible Rdc growth and voltage delay in the cell and to extend its useful life in an implantable medical device.

Abstract translation: 描述了包含锂阳极，具有相对较低基重的银钒氧化物阴极和激活阳极和阴极的电解质的电化学电池。 通过限制在Li / SVO电池中面向阳极的每单位面积（即单位面积重量）的阴极活性材料的量，固体 - 电解质间相（SEI）的钝化膜生长的大小及其对锂离子扩散的相对不渗透性 降低了。 因此，通过使用相对低的基重量的活性材料的阴极，可以消除或显着减少电池中不期望的不可逆的Rdc生长和电压延迟并延长其在可植入医疗装置中的使用寿命。

公开(公告)号：US20110091776A1

公开(公告)日：2011-04-21

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: H01M4/54 ,  H01M10/04 ,  H01M10/02 ,  H01M10/26

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：US07820328B1

公开(公告)日：2010-10-26

申请号：US11829229

申请日：2007-07-27

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

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

IPC: H01M4/62 ,  H01M4/02 ,  C08J9/26

CPC classification number: H01M4/621 ,  C08J9/26 ,  H01M4/0471 ,  H01M4/08 ,  H01M4/381 ,  H01M4/405 ,  H01M4/485 ,  H01M4/622 ,  H01M4/623 ,  H01M6/16 ,  H01M10/052 ,  Y10T29/49108

Abstract: An electrochemical cell comprising an electrode, whether it is the cathode of a primary cell or an anode or a cathode of a secondary cell, comprised of a mixture of a robust, high temperature binder along with a sacrificial decomposable polymer is described. The robust binder remains in the electrode throughout formation and processing, and maintains adhesion and cohesion of the cathode during utilization. The sacrificial decomposable polymer is present during the electrode formation stage. However, it is decomposed via a controlled treatment prior to electrode utilization. Upon subsequent high pressure pressing, the void spaces formerly occupied by the sacrificial polymer provides sites where the electrode active material collapses into a tightly compressed mass with enhanced particle-to-particle contact between the active material particles. For a cathode in a primary cell, for example a Li/SVO cell, the result is believed to be improved rate capability, capacity and stability throughout discharge.

Abstract translation: 描述了包括电极的电化学电池，无论其是初级电池的阴极还是二次电池的阳极或阴极，由稳定的高温粘合剂与牺牲的可分解聚合物的混合物组成。 在整个形成和加工过程中，坚固的粘合剂保留在电极中，并且在使用期间保持阴极的粘附和内聚力。 牺牲可分解聚合物在电极形成阶段存在。 然而，它在电极利用之前通过受控处理分解。 在随后的高压压制之后，先前由牺牲聚合物占据的空隙空间提供了电极活性材料塌陷成紧密压缩的物质的位置，其中活性材料颗粒之间具有增强的粒子与粒子之间的接触。 对于初级电池中的阴极，例如Li / SVO电池，结果被认为是在整个放电过程中提高速率能力，容量和稳定性。

公开(公告)号：US20100185264A1

公开(公告)日：2010-07-22

申请号：US11611904

申请日：2006-12-18

Applicant: Randolph Leising ,  Esther S. Takeuchi

Inventor： Randolph Leising ,  Esther S. Takeuchi

IPC: A61N1/36 ,  H01M4/88

CPC classification number: H01M4/08 ,  H01M4/366 ,  H01M4/382 ,  H01M4/54 ,  H01M4/624 ,  H01M6/16

Abstract: An improved cathode material for nonaqueous electrolyte lithium electrochemical cell is described. The preferred active material is silver vanadium oxide (SVO) coated with a protective layer of an inert metal oxide (MxOy) or lithiated metal oxide (LixMyOz). A preferred coating method is by a sol-gel process. The SVO core provides high capacity and rate capability while the protective coating reduces reactivity of the active particles with electrolyte to improve the long-term stability of the cathode.

Abstract translation: 描述了用于非水电解质锂电化学电池的改进的阴极材料。 优选的活性材料是涂覆有惰性金属氧化物（M x O y）或锂化金属氧化物（LixMyOz）的保护层的银钒氧化物（SVO）。 优选的涂布方法是通过溶胶 - 凝胶法。 SVO核提供高容量和速率能力，而保护涂层降低活性颗粒与电解质的反应性，从而提高阴极的长期稳定性。

公开(公告)号：US07118829B2

公开(公告)日：2006-10-10

申请号：US10944661

申请日：2004-09-17

Applicant: Randolph Leising ,  Esther S. Takeuchi

Inventor： Randolph Leising ,  Esther S. Takeuchi

IPC: H01M4/54 ,  C01G5/00 ,  C01G31/00

CPC classification number: H01M4/54 ,  C01G31/00 ,  C01G31/006 ,  C01G45/006 ,  C01P2002/50 ,  C01P2002/54 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/405 ,  H01M4/485 ,  H01M4/5825 ,  H01M6/16

Abstract: The current invention relates to the preparation of an improved cathode active material for non-aqueous lithium electrochemical cell. In particular, the cathode active material comprises ε-phase silver vanadium oxide prepared by using a γ-phase silver vanadium oxide starting material. The reaction of γ-phase SVO with a silver salt produces the novel ε-phase SVO possessing a lower surface area than ε-phase SVO produced from vanadium oxide (V2O5) and a similar silver salt as starting materials. Consequently, the low surface area ε-phase SVO material provides an advantage in greater long-term stability in pulse dischargeable cells.

Abstract translation: 本发明涉及用于非水电解锂电化学电池的改进的阴极活性材料的制备。 特别地，正极活性物质包括通过使用γ相银钒氧化物原料制备的ε相银钒氧化物。 γ相SVO与银盐的反应产生具有比由氧化钒（V 2 O 5 O 3）产生的ε相SVO更低的表面积的新型ε相SVO >）和类似的银盐作为起始材料。 因此，低表面积ε相SVO材料在脉冲可放电电池的更长的长期稳定性方面提供了优点。

公开(公告)号：US07092830B2

公开(公告)日：2006-08-15

申请号：US11087302

申请日：2005-03-23

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

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

IPC: G01R31/36

CPC classification number: G01R31/3627 ,  G01R31/3679

Abstract: The present invention is directed to a method for analyzing the tail-end behavior of a lithium cell having a solid cathode. The tail of a longer-term accelerated discharge data (ADD) test is estimated from the tail of two shorter-term ADD tests. This is accomplished by first comparing the discharge tails of shorter-term ADD tests and determining angles or rotation that correspond to Rdc growth, and then trending rotation angles versus time to reach a give DoD. For example, the 18-month and 36-month ADD test tails are used to estimate the ADD test tail of a similarly constructed cell subjected to a longer-term ADD test, for example a 48-month ADD test.

Abstract translation: 本发明涉及一种用于分析具有固体阴极的锂电池的尾端行为的方法。 从两个短期ADD测试的尾部估计长期加速放电数据（ADD）测试的尾部。 这是通过首先比较短期ADD测试的放电尾数和确定与Rdc生长相对应的角度或旋转，然后将趋势旋转角度与时间进行比较以达到给予DoD。 例如，18个月和36个月的ADD测试尾部用于估计经历长期ADD测试的类似构建的细胞的ADD测试尾，例如48个月的ADD测试。

公开(公告)号：US07056358B2

公开(公告)日：2006-06-06

申请号：US10435232

申请日：2003-05-09

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M6/00

CPC classification number: H01M4/131 ,  H01M4/133 ,  H01M4/40 ,  H01M4/485 ,  H01M4/621 ,  H01M4/624 ,  H01M4/625 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0566 ,  Y10T29/49108

Abstract: A method for powering an implantable medical device with a lithium electrochemical cell having a sandwich cathode electrode of SVO/CFx/SVO active materials is described. A preferred cathode is of a γ-SVO/CFx/γ-SVO or (γ+ε)-SVO/CFx/(γ+ε)-SVO sandwich configuration.

Abstract translation: 描述了一种用具有SVO / CF xS / SVO活性材料的夹层阴极的锂电化学电池为可植入医疗装置供电的方法。 优选的阴极是具有γ-SVO / CF x /γ-SVO或（γ+ε）-SVO / CF x /（γ+ε）-SVO三明治 组态。

公开(公告)号：US07022146B2

公开(公告)日：2006-04-04

申请号：US11163826

申请日：2005-11-01

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

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

IPC: H01M10/38 ,  H01M6/16

CPC classification number: H01M2/023 ,  H01M2/0426 ,  H01M2/065 ,  H01M2/08 ,  Y10T29/4911 ,  Y10T29/49114

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06797019B2

公开(公告)日：2004-09-28

申请号：US10013287

申请日：2001-12-10

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

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

IPC: H01M600

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/48 ,  H01M4/54 ,  H01M4/583 ,  H01M4/621 ,  H01M4/661 ,  H01M10/0525 ,  Y10T29/49115

Abstract: The invention is directed to an SVO electrochemical cell having high rate capability. The cathode is produced by coating a mixture of an active material, conductive additives, a mixed binder, and an aluminum foil current collector. The mixed binder consists of a mixture of heat treated polyamic acid with PVDF. The use of heat treated polyamic acid maintains adhesion to the conductive current collector while the PVDF portion of the binder gives flexibility. A particularly preferred couple is of a lithium/silver vanadium oxide (Li/SVO) chemistry and the binder mixture enables an active slurry of SVO to be coated onto a current collector without delamination.

Abstract translation: 本发明涉及具有高速率能力的SVO电化学电池。 通过涂覆活性材料，导电添加剂，混合粘合剂和铝箔集电体的混合物来制造阴极。 混合的粘合剂由热处理的聚酰胺酸与PVDF的混合物组成。 使用热处理的聚酰胺酸保持对导电集电体的粘附，同时粘合剂的PVDF部分具有柔性。 特别优选的一对是锂/银钒氧化物（Li / SVO）化学，并且粘合剂混合物使SVO的活性浆料能够涂覆在集电器上而不会分层。

公开(公告)号：US06797017B2

公开(公告)日：2004-09-28

申请号：US10004995

申请日：2001-12-05

Applicant: Randolph A. Leising ,  Esther S. Takeuchi

Inventor： Randolph A. Leising ,  Esther S. Takeuchi

IPC: H01M616

CPC classification number: C01G31/006 ,  C01P2002/50 ,  C01P2006/12 ,  H01M4/405 ,  H01M4/485 ,  H01M4/54 ,  H01M6/16 ,  Y10T29/49108 ,  Y10T29/49114

Abstract: The current invention relates to the preparation of an improved cathode active material for non-aqueous lithium electrochemical cell. In particular, the cathode active material comprises &egr;-phase silver vanadium oxide prepared by using a &ggr;-phase silver vanadium oxide starting material. The reaction of &ggr;-phase SVO with a silver salt produces the novel &egr;-phase SVO possessing a lower surface area than &egr;-phase SVO produced from vanadium oxide (V2O5) and a similar silver salt as starting materials. Consequently, the low surface area &egr;-phase SVO material provides an advantage in greater long term stability in pulse dischargeable cells.

Abstract translation: 本发明涉及用于非水电解锂电化学电池的改进的阴极活性材料的制备。 特别地，正极活性物质包括通过使用γ相银钒氧化物原料制备的ε相银钒氧化物。 γ相SVO与银盐的反应产生具有比由氧化钒（V2O5）和类似的银盐作为起始原料产生的ε相SVO更低的表面积的新型ε相SVO。 因此，低表面积ε相SVO材料在脉冲可放电电池的更长的长期稳定性方面提供了优点。