公开(公告)号：US06503646B1

公开(公告)日：2003-01-07

申请号：US09649752

申请日：2000-08-28

申请人： Dania I. Ghantous ,  Benjamin Chaloner-Gill ,  Shivkumar Chiruvolo ,  Devendra R. Banfol ,  William E. McGovern ,  Ronald M. Cornell ,  Khanh Hoang ,  Allison A. Pinoli

发明人： Dania I. Ghantous ,  Benjamin Chaloner-Gill ,  Shivkumar Chiruvolo ,  Devendra R. Banfol ,  William E. McGovern ,  Ronald M. Cornell ,  Khanh Hoang ,  Allison A. Pinoli

IPC分类号： H01M434

CPC分类号： C01G31/00 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2006/12 ,  H01M4/34 ,  H01M4/485 ,  H01M4/54 ,  H01M4/622 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021

摘要： Improved high rate batteries based on silver vanadium oxide yield improved pulsed performance. In particular, batteries comprise an electrolyte having lithium ions and a cathode comprising silver vanadium oxide. Improved batteries have a pulsed specific energy of at least about 575 mWh/g when pulsed in groups of four-10 second pulses at a current density of 25 mA/cm2 spaced by 15 seconds between pulses and with 30 minutes between pulse groups down to a discharge voltage of 1.5 volts. In addition, improved batteries can achieve high maximum specific powers, high current densities and no voltage delay in pulsed operation. The batteries are particularly suitable for use in implantable medical devices, such as, defibrillators, pacemakers or combinations thereof. Improved processing approaches are described.

摘要翻译： 基于银钒氧化物的改进的高速电池改善脉冲性能。 特别地，电池包括具有锂离子的电解质和包含银钒氧化物的阴极。 改进的电池具有至少约575mWh / g的脉冲比能量，当以25mA / cm 2的电流密度在脉冲之间间隔15秒并且在脉冲组之间30分钟之间脉冲时以4-10秒的脉冲组合脉冲 放电电压为1.5伏。 此外，改进的电池可以实现高的最大比功率，高电流密度和脉冲操作中的电压延迟。 电池特别适用于可植入医疗装置，例如除颤器，起搏器或其组合。 描述了改进的处理方法。

公开(公告)号：US06759166B2

公开(公告)日：2004-07-06

申请号：US10139417

申请日：2002-05-06

申请人： Francis Wang ,  Cahit Eylem ,  Jiayu Simon Xue ,  Kirakodu S. Nanjundaswamy ,  James Rozelle

发明人： Francis Wang ,  Cahit Eylem ,  Jiayu Simon Xue ,  Kirakodu S. Nanjundaswamy ,  James Rozelle

IPC分类号： H01M434

CPC分类号： H01M4/38 ,  H01M4/244 ,  H01M4/34 ,  H01M4/364 ,  H01M4/48 ,  H01M4/50 ,  H01M4/54 ,  H01M4/625 ,  H01M10/24 ,  H01M2004/021 ,  H01M2006/5094

摘要： An alkaline cell having an anode comprising zinc, an alkaline electrolyte solution, a separator, and a cathode comprising silver copper oxide AgCuO2, or Ag2Cu2O3, desirably in admixture with MnO2. The cathode preferably also includes a graphitic carbon to improve electrical conductivity. The graphtic carbon can comprise natural or synthetic graphites including expanded graphites and graphitic carbon fibers. The carbon nanofibers desirably have a mean average diameter less than 500 nanometers.

摘要翻译： 具有阳极的碱性电池，包含锌，碱性电解质溶液，隔膜和包含银氧化铜AgCuO 2或Ag 2 Cu 2 O 3的阴极，期望与MnO 2混合。 阴极优选还包括石墨碳以改善导电性。 石墨碳可以包括天然或合成石墨，包括膨胀石墨和石墨碳纤维。 碳纳米纤维希望平均直径小于500纳米。

公开(公告)号：US06607861B2

公开(公告)日：2003-08-19

申请号：US09809404

申请日：2001-03-15

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M434

CPC分类号： H01M4/131 ,  A61N1/3956 ,  A61N1/3975 ,  H01M4/133 ,  H01M4/366 ,  H01M4/40 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/621 ,  H01M4/624 ,  H01M4/625 ,  H01M4/661 ,  H01M6/16 ,  H01M10/052 ,  H01M10/0566 ,  H01M2004/028

摘要： Lithium electrochemical cells having a sandwich cathode electrode of SVO/CFx/SVO active materials are described. Such a design improves the service life of defibrillator electrochemical cells. A preferred formulation uses &ggr;-SVO/CFx/&ggr;-SVO or (&ggr;+&egr;)-SVO/CFx/(&ggr;+&egr;)-SVO sandwiched cathode electrodes.

摘要翻译： 描述了具有SVO / CFx / SVO活性材料的夹层阴极的锂电化学电池。 这样的设计提高了除颤器电化学电池的使用寿命。 优选的配方使用γ-SVO / CFx /γ-SVO或（γ+ epsi）-SVO / CFx /（γ+εi）-SVO夹层的阴极。

公开(公告)号：US06623887B2

公开(公告)日：2003-09-23

申请号：US09793246

申请日：2001-02-26

申请人： Hong Gan ,  Esther S. Takeuchi

发明人： Hong Gan ,  Esther S. Takeuchi

IPC分类号： H01M434

CPC分类号： H01M10/052 ,  H01M4/13 ,  H01M4/131 ,  H01M4/134 ,  H01M4/483 ,  H01M4/54 ,  H01M6/16

摘要： A method for synthesizing a mixture of &egr;-SVO (Ag2V4O11) and &ggr;-SVO (Ag1.6V4O10.8) by a two-step raw materials mixing process, is described. &ggr;-SVO is the preferred SVO in terms of electrochemical performance, such as reduced Rdc growth and reduced or eliminated voltage delay. On the other hand, &egr;-SVO has slightly higher volumetric capacity than y-SVO. AgVO3 is an undesirable component in Li/SVO cell cathodes because it causes increased Rdc growth and larger voltage delay in comparison to the pure product materials. According to the present invention, a mixture of &egr;-SVO (0-100%)+&ggr;-SVO (100-0%) as a cathode active material in lithium cells is preferred.

摘要翻译： 描述了通过两步原料混合过程合成ε-SVO（Ag2V4O11）和γ-SVO（Ag1.6V4O10.8）的混合物的方法。 在电化学性能方面，γ-SVO是优选的SVO，例如降低的Rdc生长和减少或消除的电压延迟。 另一方面，epsil-SVO的体积容量比y-SVO略高。 AgVO3是Li / SVO电池阴极中不合需要的组分，因为与纯产品材料相比，它导致Rdc生长增加和电压延迟更大。 根据本发明，优选在锂电池中作为正极活性物质的ε-SVO（0-100％）+γ-SVO（100-0％）的混合物。

公开(公告)号：US06391494B2

公开(公告)日：2002-05-21

申请号：US09311506

申请日：1999-05-13

申请人： Hariklia Dris Reitz ,  James P. Buckley ,  Sujeet Kumar ,  Yu K. Fortunak ,  Xiangxin Bi

发明人： Hariklia Dris Reitz ,  James P. Buckley ,  Sujeet Kumar ,  Yu K. Fortunak ,  Xiangxin Bi

IPC分类号： H01M434

CPC分类号： H01M4/131 ,  H01M4/1391 ,  H01M4/54 ,  H01M10/052

摘要： Laser pyrolysis can be used to produce directly metal vanadium oxide composite nanoparticles. To perform the pyrolysis a reactant stream is formed including a vanadium precursor and a second metal precursor. The pyrolysis is driven by energy absorbed from a light beam. Metal vanadium oxide nanoparticles can be incorporated into a cathode of a lithium based battery to obtain increased energy densities. Implantable defibrillators can be constructed with lithium based batteries having increased energy densities.

摘要翻译： 激光热解可用于生产直接金属氧化钒复合纳米粒子。 为了进行热解，形成包括钒前体和第二金属前体的反应物流。 热分解是由光束吸收的能量驱动的。 可以将金属氧化钒纳米颗粒掺入锂基电池的阴极中以获得增加的能量密度。 可植入的除颤器可以用具有增加的能量密度的锂基电池构成。

公开(公告)号：US06753109B2

公开(公告)日：2004-06-22

申请号：US10139552

申请日：2002-05-06

申请人： Kirakodu S. Nanjundaswamy ,  Francis Wang ,  Jiayu Simon Xue ,  Cahit Eylem ,  James Rozelle

发明人： Kirakodu S. Nanjundaswamy ,  Francis Wang ,  Jiayu Simon Xue ,  Cahit Eylem ,  James Rozelle

IPC分类号： H01M434

CPC分类号： H01M4/244 ,  H01M4/34 ,  H01M4/42 ,  H01M4/48 ,  H01M4/54 ,  H01M4/625 ,  H01M6/04 ,  H01M2004/021 ,  H01M2004/028

摘要： An alkaline cell having an anode comprising zinc, an alkaline electrolyte solution, a separator, and a cathode comprising silver copper oxide selected from the compounds AgCuO2 Ag2Cu2O3 or any mixture thereof. The cathode preferably also includes a graphitic carbon to improve electrical conductivity. The graphitic carbon can comprise natural or synthetic graphites including expanded graphites and graphitic carbon fibers. The carbon nanofibers desirably have a mean average diameter less than 500 nanometers.

摘要翻译： 具有阳极的碱性电池，包含选自AgCuO 2 Ag 2 Cu 2 O 3的银氧化铜或其任何混合物的锌，碱性电解质溶液，隔膜和阴极。 阴极优选还包括石墨碳以改善导电性。 石墨碳可以包括天然或合成石墨，包括膨胀石墨和石墨碳纤维。 碳纳米纤维希望平均直径小于500纳米。

公开(公告)号：US06228534B1

公开(公告)日：2001-05-08

申请号：US09217215

申请日：1998-12-21

申请人： Esther S. Takeuchi ,  William C. Thiebolt, III

发明人： Esther S. Takeuchi ,  William C. Thiebolt, III

IPC分类号： H01M434

CPC分类号： H01M4/0416 ,  H01M4/02 ,  H01M4/04 ,  H01M4/0402 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/48 ,  H01M4/5815 ,  H01M6/16 ,  H01M2004/028 ,  H01M2006/5094 ,  Y10T29/49108

摘要： The thermal treatment of transition metal oxide electrodes such as silver vanadium oxide cathode plates, contacted to titanium current collectors for the purpose of reducing polarization resistance in an alkali metal electrochemical cell, is described. The electrodes are exposed to an elevated temperature of at least about 225° C. for about 8 hours prior to cell fabrication. The present heat treatment regime is particularly useful in cathodes intended for fabrication into a cell powering an implantable medical device with improved polarization resistance as well as reduced heat dissipation.

摘要翻译： 描述了为了降低碱金属电化学电池中的极化电阻而与钛电流收集器接触的过渡金属氧化物电极如银钒氧化物阴极板的热处理。 在电池制造之前，将电极暴露于至少约225℃的升高的温度约8小时。 本发明的热处理方案特别适用于用于制造到具有改善的极化电阻以及减少散热的可植入医疗装置的电池的阴极中。