公开(公告)号：US06673487B2

公开(公告)日：2004-01-06

申请号：US09975711

申请日：2001-10-11

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M402

CPC classification number: H01M4/54 ,  H01M4/0404 ,  H01M4/34 ,  H01M4/48 ,  Y10T29/49108

Abstract: A new sandwich cathode design is provided comprising a cathode active material provided in at least two different thicknesses. The different thickness cathode structures are then individually pressed on opposite sides of a current collector so that both are in direct contact with the substrate. Preferably, the cathode structure on the side facing the anode is of a lesser thickness than that on the opposite side of the current collector. Such an exemplary cathode design might look like: SVO(x)/current collector/SVO(y)/current collector/SVO(z), wherein x, y and z represent thicknesses and wherein x and z are lesser than y.

Abstract translation: 提供了一种新的夹层阴极设计，其包括以至少两种不同厚度提供的阴极活性材料。 然后将不同厚度的阴极结构单独地压在集电器的相对侧上，使得两者均与基板直接接触。 优选地，面向阳极的一侧上的阴极结构的厚度比集电体的相反侧的厚度小。 这样的示例性阴极设计可能看起来像：SVO（x）/集电器/ SVO（y）/集电器/ SVO（z），其中x，y和z表示厚度，并且其中x和z小于y。

公开(公告)号：US06566007B1

公开(公告)日：2003-05-20

申请号：US09549910

申请日：2000-04-14

Applicant: Esther S. Takeuchi ,  Randolph A. Leising

Inventor： Esther S. Takeuchi ,  Randolph A. Leising

IPC: H01M454

CPC classification number: H01M4/131 ,  C01G31/00 ,  H01M4/48 ,  H01M4/485 ,  H01M4/54 ,  H01M6/16 ,  H01M10/052

Abstract: A single phase silver vanadium oxide prepared from a mixture of a decomposable silver salt and vanadium oxide first heated at about 2° C. to about 40° C. above the decomposition temperature of the mixture followed by a second heating in a temperature range of about 490° C. to about 520° C. is described. The silver vanadium oxide material is coupled with a lithium anode and activated with a nonaquecus electrolyte to provide an improved high energy density electrochemical cell having increased pulse voltages and a reduction in voltage delay.

Abstract translation: 从可分解的银盐和氧化钒的混合物中制备的单相银钒氧化物首先在混合物的分解温度之上约2℃至约40℃加热，然后在大约的温度范围内进行第二次加热 描述了490℃至约520℃。 银钒氧化物材料与锂阳极耦合并用非电解质电解质活化，以提供具有增加的脉冲电压和降低电压延迟的改进的高能量密度电化学电池。

公开(公告)号：US06541140B1

公开(公告)日：2003-04-01

申请号：US09632821

申请日：2000-08-07

Applicant: David M. Spillman ,  Esther S. Takeuchi

Inventor： David M. Spillman ,  Esther S. Takeuchi

IPC: H01M1004

CPC classification number: H01M10/045 ,  H01M4/131 ,  H01M4/133 ,  H01M6/103 ,  H01M10/0413 ,  H01M10/0445 ,  H01M10/0525 ,  H01M10/0583 ,  H01M16/00 ,  Y10T29/49108

Abstract: A secondary electrochemical cell comprising a medium rate electrode region intended to be discharged under a substantially constant drain and a high rate electrode region intended to be pulse discharged, is described. Both electrode regions share a common anode and are activated with the same electrolyte.

Abstract translation: 描述了一种二次电化学电池，其包括期望在基本上恒定的漏极下放电的中速电极区域和旨在被脉冲放电的高速率电极区域。 两个电极区域共享一个共同的阳极并且被相同的电解质激活。

公开(公告)号：US06537698B2

公开(公告)日：2003-03-25

申请号：US09813567

申请日：2001-03-21

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M460

CPC classification number: H01M4/13 ,  H01M4/04 ,  H01M4/62 ,  H01M6/16 ,  H01M6/168 ,  H01M10/052 ,  H01M10/44

Abstract: 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 phosphonate 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 phosphonate additive to dissolve in the electrolyte. The phosphonate solute is then able to contact the lithium to provide an electrically insulating and ionically conducting passivation layer thereon.

公开(公告)号：US06444360B1

公开(公告)日：2002-09-03

申请号：US09772680

申请日：2001-01-30

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M460

Abstract: An alkali metal, solid cathode, non-aqueous electrochemical cell capable of delivering high current pulses, rapidly recovering its open circuit voltage and having high current capacity, is described. The stated benefits are realized by the addition of at least one organic sulfate additive to an electrolyte comprising an alkali metal salt dissolved in a mixture of a low viscosity solvent and a high permittivity solvent. A preferred solvent mixture includes propylene carbonate, 1,2-dimethoxyethane and a sulfate additive having at least one unsaturated hydrocarbon containing a C(sp or sp2)-C(sp3) bond unit having the C(sp3) carbon directly connected to the —OSO3— functional group.

公开(公告)号：US06403256B1

公开(公告)日：2002-06-11

申请号：US09490356

申请日：2000-01-24

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M460

CPC classification number: H01M10/0569 ,  H01M4/131 ,  H01M4/133 ,  H01M4/48 ,  H01M4/525 ,  H01M6/16 ,  H01M6/168 ,  H01M6/5088 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/058 ,  H01M10/0587 ,  H01M2300/0037 ,  H01M2300/0042

Abstract: An alkali metal, solid cathode, nonaqueous electrochemical cell capable of delivering high current pulses, rapidly recovering its open circuit voltage and having high current capacity, is described. The stated benefits are realized by the addition of at least one organic sulfite additive to an electrolyte comprising an alkali metal salt dissolved in a mixture of a low viscosity solvent and a high permittivity solvent. A preferred solvent mixture includes propylene carbonate, dimethoxyethane and a sulfite additive having at least one unsaturated hydrocarbon containing a C(sp2 or sp3)—C(sp3) bond unit having the C(sp3) carbon directly connected to the —OSO2— functional group.

Abstract translation: 描述了能够传递高电流脉冲，快速恢复其开路电压并且具有高电流容量的碱金属，固体阴极，非水电化学电池。 通过在包含溶解在低粘度溶剂和高介电常数溶剂的混合物中的碱金属盐的电解质中加入至少一种有机亚硫酸盐添加剂来实现所述的益处。 优选的溶剂混合物包括碳酸亚丙酯，二甲氧基乙烷和具有至少一种含C（sp2或sp3）-C（sp3）键单元的不饱和烃的亚硫酸盐添加剂，其中C（sp3）碳直接与-OSO 2官能团连接 。

公开(公告)号：US06306544B1

公开(公告)日：2001-10-23

申请号：US09257795

申请日：1999-02-25

Applicant: Christine A. Frysz ,  Sally Ann Smesko ,  Peter A. Kreidler ,  W. Richard Brown ,  Esther S. Takeuchi

Inventor： Christine A. Frysz ,  Sally Ann Smesko ,  Peter A. Kreidler ,  W. Richard Brown ,  Esther S. Takeuchi

IPC: H01M464

CPC classification number: C22C19/07 ,  B22F2998/00 ,  C22C30/00 ,  Y10S420/90 ,  C22C1/0433

Abstract: Cobalt-based alloys are provided for use as a positive electrode current collector in a solid cathode, nonaqueous liquid electrolyte, alkali metal anode active electrochemical cell. The cobalt-based alloys are characterized by chemical compatibility with aggressive cell environments, high corrosion resistance and resistance to fluorination and passivation at elevated temperatures, thus improving the longevity and performance of the electrochemical cell. The cell can be of either a primary or a secondary configuration.

Abstract translation: 提供钴基合金用作固体阴极，非水电解液，碱金属阳极活性电化学电池中的正极集电体。 钴基合金的特征在于与侵蚀性电池环境的化学相容性，高耐腐蚀性和耐高温氟化和钝化，从而改善电化学电池的寿命和性能。 单元格可以是主要或辅助配置。

公开(公告)号：US06203942B1

公开(公告)日：2001-03-20

申请号：US09303877

申请日：1999-05-03

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M604

CPC classification number: H01M10/0567 ,  H01M4/587 ,  H01M6/164 ,  H01M10/0525 ,  H01M10/0568 ,  H01M2200/10

Abstract: 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 phosphate 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 phosphate compound.

Abstract translation: 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。 所述的益处是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磷酸盐添加剂来实现的。 优选的添加剂是磷酸烷基酯化合物。

公开(公告)号：US6150057A

公开(公告)日：2000-11-21

申请号：US403570

申请日：1995-03-14

Applicant: Esther S. Takeuchi

Inventor： Esther S. Takeuchi

IPC: H01M2/16 ,  H01M4/48 ,  H01M4/58 ,  H01M4/66 ,  H01M6/16 ,  H01M10/40

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

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.

公开(公告)号：US6136466A

公开(公告)日：2000-10-24

申请号：US854525

申请日：1997-05-12

Applicant: Esther S. Takeuchi ,  Ralph T. Mead

Inventor： Esther S. Takeuchi ,  Ralph T. Mead

IPC: H01M2/02 ,  H01M6/10 ,  H01M6/16 ,  H01M10/04

CPC classification number: H01M10/0431 ,  H01M6/10 ,  H01M2/0217 ,  H01M6/16

Abstract: A solid cathode liquid organic electrolyte alkali metal high rate cell wherein a combination of an elongated alkali metal anode and elongated solid cathode with separator therebetween is wound to form an anode-cathode subassembly having a jellyroll type configuration and wherein the combination is shaped so that the resulting sub-assembly has a substantially rectangular cross-section, the shaping of the combination being done either simultaneously with or subsequent to the winding thereof. The anode-cathode sub-assembly is placed in a conductive cell casing of prismatic shape having opposed flat faces, a lead of either the anode or cathode is attached to the cell casing depending upon whether case positive or case negative electrical configuration is desired and a lead of the other of the anode or cathode is connected to an electrical connector means extending through the casing in an insulated manner. Liquid electrolyte is introduced to the anode-cathode sub-assembly in the casing whereupon the casing then is sealed closed. The foregoing provides a new and improved prismatic high rate battery which significantly reduces the time required to manufacture the cell stack assembly while maintaining the requisite performance, safety and reliability standards in operation.

Abstract translation: 一种固体阴极液体有机电解质碱金属高比率电池，其中将细长的碱金属阳极和其间具有隔板的细长的固体阴极的组合缠绕以形成具有果冻型配置的阳极 - 阴极子组件，并且其中组合被成形为使得 所得到的子组件具有基本上矩形的横截面，所述组合的成形在其卷绕或同时进行。 将阳极 - 阴极子组件放置在具有相对平面的棱柱形状的导电电池壳体中，阳极或阴极的引线根据情况正电荷或情况负电构造是否需要而连接到电池壳体，并且 阳极或阴极中的另一个的引线连接到以绝缘方式延伸穿过壳体的电连接器装置。 将液体电解质引入到壳体中的阳极 - 阴极子组件中，然后将壳体密封封闭。 上述提供了一种新的和改进的棱柱形高速电池，其显着地减少了制造电池堆组件所需的时间，同时保持了操作中所需的性能，安全性和可靠性标准。