公开(公告)号：US06558845B1

公开(公告)日：2003-05-06

申请号：US09439872

申请日：1999-11-12

Applicant: Randolph A. Leising ,  Esther S. Takeuchi

Inventor： Randolph A. Leising ,  Esther S. Takeuchi

IPC: H01M458

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

Abstract: The present invention is related to an electrochemical 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. The starting materials are mixed together to form a homogeneous admixture that is not further mixed once decomposition heating begins to form the product active material. The present cathode material is particularly useful for implantable medical applications.

Abstract translation: 本发明涉及一种电化学电池，其包含IA族金属的阳极和由包含氧化钒的起始材料的组合和至少一种可分解​​的含银组分的混合物制成的混合相金属氧化物的阴极， 和可分解的含铜成分。 将原料混合在一起形成均匀的混合物，一旦分解加热开始形成产物活性材料，就不会进一步混合。 本阴极材料对于可植入医疗应用特别有用。

公开(公告)号：US06495285B2

公开(公告)日：2002-12-17

申请号：US09740639

申请日：2000-12-19

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M604

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  Y10T29/49108

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 phosphonate additive having the formula (R1O)P(═O) (OR2) (R3) provided in the electrolyte. In the phosphonate formula, R3 is a hydrogen atom and wherein at least one, but not both, of R1 and R2 is a hydrogen atom and the other of R1 and R2 is an organic group containing 1 to 13 carbon atoms. Or, at least one of R1 and R2 is an organic group containing at least 3 carbon atoms and having an sp or sp2 hybridized carbon atom bonded to an sp3 hybridized carbon atom bonded to the oxygen atom bonded to the phosphorous atom, or at least one of R1 and R2 is an unsaturated inorganic group.

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。 通过添加至少一种在电解质中提供的式（R1O）P（= O）（OR2）（R3））的膦酸酯添加剂来实现所述的益处。 在膦酸酯配方中，R 3是氢原子，并且其中R 1和R 2中的至少一个但不同时是氢原子，R 1和R 2中的另一个是含有1至13个碳原子的有机基团。 或者，R1和R2中的至少一个是含有至少3个碳原子的有机基团，并且具有与结合至磷原子的氧原子键合的sp 3杂化碳原子键合的sp或sp2杂化碳原子，或至少一个 的R1和R2是不饱和的无机基团。

公开(公告)号：US06475666B1

公开(公告)日：2002-11-05

申请号：US08801006

申请日：1997-02-19

Applicant: Esther S. Takeuchi

Inventor： Esther S. Takeuchi

IPC: H01M218

CPC classification number: H01M10/0413 ,  H01M2/0217 ,  H01M2/1666 ,  H01M6/10 ,  H01M10/0454 ,  H01M10/4235 ,  H01M2200/00 ,  H01M2200/10 ,  H01M2300/0025

Abstract: A separator for shutting down current flow in a lithium or other alkali metal battery during a short circuit condition to prevent cell rupture. In one form, the separator comprises a layer of microporous polyethylene film, or other suitable microporous film having a melting point which is less than about 135° C., for providing good puncture resistance and for melting at a low temperature for increasing the margin of safety without significantly sacrificing performance. The separator also includes a layer of non-woven polypropylene, or other suitable non-woven material having a melting point which is at least about 10° C. higher than the melting point of the microporous film, to provide good strength and tear resistance so as to maintain physical integrity of the separator so that the short circuit condition is not worsened. In another form the separator comprises the combination of polyethylene on one of the battery electrodes, i.e. anode or cathode, and polypropylene on the other of the battery electrodes.

Abstract translation: 一种用于在短路状态下关闭锂或其他碱金属电池中的电流的隔板，以防止电池破裂。 在一种形式中，分离器包括一层微孔聚乙烯膜或其熔点低于约135℃的其它合适的微孔膜，以提供良好的抗穿刺性和在低温下熔化以增加 安全性不会大大降低性能。 分离器还包括一层非织造聚丙烯或其它合适的非织造材料，其熔点比微孔膜的熔点高至少约10℃，以提供良好的强度和抗撕裂性 以保持分离器的物理完整性，使得短路状况不变差。 在另一种形式中，分离器包括在一个电池电极即阳极或阴极上的聚乙烯和另一个电池电极上的聚丙烯的组合。

公开(公告)号：US06350542B1

公开(公告)日：2002-02-26

申请号：US09490355

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: 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 sulfite 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 sulfite 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亚硫酸盐添加剂来实现的。 优选的添加剂是亚硫酸烷基酯化合物。

公开(公告)号：US06221534B1

公开(公告)日：2001-04-24

申请号：US09200304

申请日：1998-11-25

Applicant: Esther S. Takeuchi ,  Randolph A. Leising ,  Hong Gan

Inventor： Esther S. Takeuchi ,  Randolph A. Leising ,  Hong Gan

IPC: H01M604

CPC classification number: H01M6/168 ,  C01G31/00 ,  C01P2006/40 ,  H01M4/48 ,  H01M4/54 ,  H01M4/581

Abstract: The present invention is directed to an unexpected benefit in a lithium cell derived from using a combination of silver vanadium oxide prepared in a temperature range of about 450° C. to about 500° C. activated with a nonaqueous electrolyte having a passivation inhibitor additive selected from a nitrite, a nitrate, a carbonate, a dicarbonate, a phosphonate, a phosphate, a sulfate and hydrogen fluoride, and mixtures thereof. The benefits include additional battery life resulting from a reduction in voltage delay and RDC build-up. A preferred electrolyte is 1M LiAsF6 in a 50:50 mixture, by volume, of PC and DME having dibenzyl carbonate added therein.

Abstract translation: 本发明涉及在使用在约450℃至约500℃的温度范围内制备的银钒氧化物的组合衍生的锂电池的意想不到的益处，所述银钒氧化物被选择为具有钝化抑制剂添加剂的非水电解质活化 来自亚硝酸盐，硝酸盐，碳酸盐，二碳酸盐，膦酸盐，磷酸盐，硫酸盐和氟化氢，及其混合物。 其优点包括由于电压延迟和RDC积累的减少而导致额外的电池寿命。 优选的电解质是50:50混合物中体积的PC和DME的1M LiAsF 6，其中加入了二碳酸二苄酯。

公开(公告)号：US06210839B1

公开(公告)日：2001-04-03

申请号：US09338887

申请日：1999-06-23

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M618

CPC classification number: H01M10/0567 ,  H01M6/168

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 nitrite 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 nitrite 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。 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亚硝酸盐添加剂来实现所述的益处。 优选的添加剂是亚硝酸烷基酯化合物。

公开(公告)号：US6165638A

公开(公告)日：2000-12-26

申请号：US295090

申请日：1999-04-20

Applicant: David M. Spillman ,  Esther S. Takeuchi

Inventor： David M. Spillman ,  Esther S. Takeuchi

IPC: A61N1/378 ,  H01M6/10 ,  H01M6/16 ,  H01M6/42 ,  H01M6/50 ,  H01M10/04 ,  H01M10/40 ,  H01M16/00 ,  H01M4/04

CPC classification number: H01M10/0413 ,  H01M6/10 ,  H01M6/16 ,  H01M6/425 ,  H01M6/5016 ,  H01M10/0445 ,  H01M16/00

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

Abstract translation: 描述了一种电化学电池，其包括旨在在基本上恒定的漏极下排出的中速电极区域和布置在旨在被脉冲放电的果冻卷绕构造中的高速率电极区域。 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：US6136477A

公开(公告)日：2000-10-24

申请号：US320633

申请日：1999-05-26

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H01M4/133 ,  H01M4/62 ,  H01M6/16 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/36 ,  H01M6/18

CPC classification number: H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M4/133 ,  H01M6/164 ,  Y02P70/54

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 nitrate 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 organic alkyl nitrate 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。 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硝酸盐添加剂来实现所述的益处。 优选的添加剂是有机烷基硝酸盐化合物。

公开(公告)号：US6087809A

公开(公告)日：2000-07-11

申请号：US473160

申请日：1999-12-28

Applicant: Hong Gan ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Esther S. Takeuchi

IPC: H02J7/00 ,  A61N1/08 ,  A61N1/378 ,  H01M4/134 ,  H01M4/48 ,  H01M4/58 ,  H01M6/16 ,  H01M6/42 ,  H01M6/50 ,  H01M10/44

CPC classification number: H01M4/134 ,  A61N1/08 ,  H01M4/483 ,  H01M4/5815 ,  H01M6/16 ,  H01M6/50 ,  A61N1/378 ,  H01M2300/0037 ,  H01M6/164 ,  H01M6/166 ,  H01M6/42 ,  H01M6/5016

Abstract: A power source including two alkali metal/transition metal oxide cells discharged in parallel to power an implantable medical device is described. The first cell powers the medical device in both a device monitoring mode, for example in a cardiac defibrillator for monitoring the heart beat, and a device actuation mode for charging capacitors requiring high rate electrical pulse discharging. At such time as the first cell is discharged to a predetermined voltage limit, the first cell is disconnected from pulse discharge duty and only used for the device monitoring function. At that time, the second cell is utilized for the high rate electrical pulse discharging function. When the first cell reaches 100% efficiency or a present voltage limit, the second cell then takes over both device monitoring and device actuation functions. In that manner, a greater average discharge efficiency is realized from the two cells than is capable of being delivered from a single cell of similar chemistry.

Abstract translation: 描述了包括并联排放的两个碱金属/过渡金属氧化物电池以为可植入医疗装置供电的电源。 第一单元在设备监视模式中为医疗设备供电，例如用于监测心跳的心脏除颤器，以及用于对需要高速率电脉冲放电的电容器进行充电的设备致动模式。 在第一电池放电到预定电压极限时，第一电池与脉冲放电占空比断开，仅用于器件监视功能。 此时，第二个电池用于高速电脉冲放电功能。 当第一个电池达到100％效率或当前的电压限制时，第二个电池接管器件监测和器件致动功能。 以这种方式，从两个电池实现的平均放电效率比能够从类似化学的单个电池输送的平均放电效率更高。

公开(公告)号：US6057062A

公开(公告)日：2000-05-02

申请号：US354987

申请日：1999-07-16

Applicant: Hong Gan ,  Marcus J. Palazzo ,  Esther S. Takeuchi

Inventor： Hong Gan ,  Marcus J. Palazzo ,  Esther S. Takeuchi

IPC: C07C68/06 ,  C07C69/96 ,  H01M6/16 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/36

CPC classification number: H01M10/052 ,  C07C68/06 ,  H01M10/0569 ,  H01M10/0525 ,  H01M2300/0025 ,  Y02P20/582

Abstract: The present invention relates to an improved method for synthesizing unsymmetric linear organic carbonates comprising the reaction of two symmetric dialkyl carbonates, R.sup.1 and R.sup.2, in the presence of a nucleophilic reagent or an election donating reductant as a catalyst, wherein R.sup.1 and R.sup.2 can be either saturated or unsaturated alkyl or aryl groups, is described. The presence invention further provides a preparation method for a nonaqueous organic electrolyte having an unsymmetric linear organic carbonate as a co-solvent.

Abstract translation: 本发明涉及一种用于合成不对称线性有机碳酸酯的改进方法，其包括在亲核试剂或选择供体还原剂作为催化剂的存在下，两个对称的碳酸二烷基酯R 1和R 2的反应，其中R 1和R 2可以是 饱和或不饱和的烷基或芳基。 本发明还提供了具有不对称线性有机碳酸酯作为助溶剂的非水有机电解质的制备方法。