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1. 发明授权

US07211349B2 Silver vanadium oxide provided with a metal oxide coating 失效
标题翻译：银氧化钒提供金属氧化物涂层
公开(公告)号：US07211349B2
公开(公告)日：2007-05-01
申请号：US10631097
申请日：2003-07-31
申请人： Randolph Leising , Esther S. Takeuchi
发明人： Randolph Leising , Esther S. Takeuchi
IPC分类号： H01M4/34
CPC分类号： H01M6/16 , H01M4/1391 , H01M4/1397 , H01M4/366 , H01M4/485 , H01M4/54 , H01M4/5825 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M2004/028
摘要： An improved cathode material for nonaqueous electrolyte lithium electrochemical cell is described. The preferred active material is ε-phase silver vanadium oxide (Ag2V4O11) coated with a protective layer of a metal oxide, preferably γ-phase SVO (Ag1.2V3O1.8). 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.
摘要翻译：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金属氧化物保护层的ε相银钒氧化物（Ag 2 N 2 O 4 O 11 N 11）优选γ相SVO（Ag 1/2 3 3 N 1）。 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。

2. 发明申请

US20080138707A1 Preparation of cathode active material by hydrothermal reaction 审中-公开
标题翻译：通过水热反应制备阴极活性材料
公开(公告)号：US20080138707A1
公开(公告)日：2008-06-12
申请号：US10894305
申请日：2004-07-19
申请人： Esther S. Takeuchi , Veronica Lamothe , Randolph Leising
发明人： Esther S. Takeuchi , Veronica Lamothe , Randolph Leising
IPC分类号： H01M4/54 , C01G31/02 , C01G5/00
CPC分类号： C01G31/00 , B82Y30/00 , C01G31/006 , C01G31/02 , C01P2004/03 , C01P2004/64 , C01P2006/12 , C01P2006/40 , H01M4/131 , H01M4/1391 , H01M4/505 , H01M4/54
摘要： 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 comprised ε-phase silver vanadium oxide prepared by using silver- and vanadium-containing starting materials in a stoichiometric molar proportion to give a Ag:V ratio of about 1:2. The reactants are homogenized and then added to an aqueous solution followed by heating in a pressurized vessel. The resulting ε-phase SVO possesses a higher surface area than ε-phase SVO produced by other prior art techniques. Consequently, the ε-phase SVO material provides an advantage in greater discharge capacity in pulse dischargeable cells.
摘要翻译：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，阴极活性材料包括通过使用含有钒和钒的起始材料以化学计量摩尔比例制备的ε相银钒氧化物，得到约1:2的Ag:V比。将反应物均化，然后加入到水溶液中，随后在加压容器中加热。所得到的ε相SVO具有比其它现有技术产生的ε相SVO更高的表面积。因此，ε相SVO材料在脉冲放电单元中的更大放电容量中提供了优点。

3. 发明申请

US20080007216A1 Method To Reduce Resistance For Lithium/Silver Vanadium Oxide Electrochemical Cells 审中-公开
标题翻译：降低锂/银氧化钒电池电阻的方法
公开(公告)号：US20080007216A1
公开(公告)日：2008-01-10
申请号：US11774063
申请日：2007-07-06
申请人： Esther S. Takeuchi , Randolph Leising
发明人： Esther S. Takeuchi , Randolph Leising
IPC分类号： H02J7/00
CPC分类号： H01M6/50 , H01G9/155 , H01M4/382 , H01M4/54 , H01M6/16 , H01M6/5033 , H01M6/5088 , H01M10/4264
摘要： Increased Rdc in electrochemical cells is detrimental because under high rate discharge regimes, such as used in powering an implantable cardiac defibrillator (ICD), the amount of energy delivered by the cell over a given period of time is lower as Rdc increases. This reduction in delivered energy results in a longer period of time needed to fully charge the ICD capacitors so that it takes longer to deliver the necessary therapy. Further, an industry recognized standard is to pulse discharge cell about every 90 days to charge the capacitors in the ICD to or near their maximum energy breakdown voltage to heal microfractures that can occur in the capacitor dielectric oxide. However, the present invention requires initiation of more frequent current pulsing upon the detection of an increase in Rdc or charge time. This is even though the Rdc measurement may be below some threshold reading. More frequent pulsing is beneficial for reducing irreversible Rdc growth in the cell, which typically occurs in middle-of-life from about 25% to 70% depth-of-discharge.
摘要翻译：电化学电池中Rdc的增加是有害的，因为在诸如用于为可植入心脏除颤器（ICD）供电的高速率放电方案中，在给定时间段内由电池递送的能量的量随着Rdc的增加而降低。递送能量的这种减少导致完全充电ICD电容器所需的更长的时间，从而需要更长的时间来提供必要的治疗。此外，行业公认的标准是每90天脉冲放电单元，以将ICD中的电容器充电至其最大能量击穿电压或接近其最大能量击穿电压，以愈合可能发生在电容器电介质氧化物中的微裂缝。然而，本发明需要在检测到Rdc或充电时间的增加时引发更频繁的电流脉冲。即使Rdc测量值可能低于某个阈值读数。更频繁的脉冲对于减少细胞中不可逆的Rdc生长是有益的，其通常在中等寿命中从约25％至70％的放电深度发生。

4. 发明授权

US07026791B2 Electrochemical treatment method to reduce voltage delay and cell resistance in lithium/silver vanadium oxide cells 有权
标题翻译：电化学处理方法，以减少锂/银氧化钒电池的电压延迟和电池电阻
公开(公告)号：US07026791B2
公开(公告)日：2006-04-11
申请号：US10763945
申请日：2004-01-22
申请人： Marcus Palazzo , Esther S. Takeuchi , Randolph Leising
发明人： Marcus Palazzo , Esther S. Takeuchi , Randolph Leising
IPC分类号： H02J7/00 , A61N1/18
CPC分类号： H01M10/44 , H01M4/483 , H01M4/54 , H01M6/16
摘要： It is known that reforming implantable defibrillator capacitors at least partially restores and preserves their charging efficiency. An industry-recognized standard is to reform implantable capacitors by pulse discharging the connected electrochemical cell about once every three months throughout the useful life of the medical device. A Li/SVO cell typically powers such devices. The present invention relates to methodologies for significantly minimizing, if not entirely eliminating, the occurrence of voltage delay and irreversible Rdc growth in the about 35% to 70% DOD region by subjecting Li/SVO cells to novel discharge regimes. At the same time, the connected capacitors in the cardiac defibrillator are reformed to maintain them at their rated breakdown voltages.
摘要翻译：众所周知，重组可植入除颤器电容器至少部分恢复并保持其充电效率。行业公认的标准是通过在医疗设备的整个使用寿命期间每三个月大约一次脉冲地排放连接的电化学电池来重建可植入电容器。 Li / SVO单元通常为这些设备供电。本发明涉及通过使Li / SVO细胞经受新颖的放电方式，使大约35％至70％的DOD区域中的电压延迟和不可逆Rdc生长显着最小化（如果不是完全消除）的方法。同时，将心脏除颤器中连接的电容器进行重整，以将其维持在额定击穿电压。

5. 发明授权

US07754111B1 Method of making silver vanadium oxyfluorides for nonaqueous lithium electrochemical cells 失效
标题翻译：制备用于非水锂电化学电池的银钒氧氟化物的方法
公开(公告)号：US07754111B1
公开(公告)日：2010-07-13
申请号：US11811556
申请日：2007-06-11
申请人： Jingsi Yang , Esther S. Takeuchi , Randolph Leising
发明人： Jingsi Yang , Esther S. Takeuchi , Randolph Leising
IPC分类号： H01B1/06
CPC分类号： H01B1/08 , C01G31/006 , C01P2002/72 , C01P2006/40 , H01M4/06 , H01M4/483 , H01M4/54 , H01M6/16
摘要： An electrochemical cell comprising a lithium anode and a fluorinated silver vanadium oxide cathode activated with a nonaqueous electrolyte is described. The fluorinated silver vanadium oxide is of the formula Ag4V2O11-xFx, wherein x ranges from about 0.02 to about 0.3.
摘要翻译：描述了一种包含锂阳极和用非水电解液活化的氟化银钒氧化物阴极的电化学电池。氟化银钒氧化物具有式Ag4V2O11-xFx，其中x为约0.02至约0.3。

6. 发明授权

US07432001B1 Prevention of lithium deposition in nonaqueous electrolyte cells by electrolyte-to-cathode weight ratio 有权
标题翻译：通过电解液 - 阴极重量比防止非水电解质电池中的锂沉积
公开(公告)号：US07432001B1
公开(公告)日：2008-10-07
申请号：US11007933
申请日：2004-12-09
申请人： Esther S. Takeuchi , Randolph Leising , Marcus Palazzo
发明人： Esther S. Takeuchi , Randolph Leising , Marcus Palazzo
IPC分类号： H01M2/22 , H01M4/54
CPC分类号： H01M2/266 , H01M4/131 , H01M4/133 , H01M4/485 , H01M4/54 , H01M4/583 , H01M6/16
摘要： The prevention of lithium clusters from bridging between the negative and positive portions of a cell during discharge is described. This is done by limiting the amount of electrolyte in the cell, thereby eliminating excess electrolyte pooling above the cell stack. It is in this excess electrolyte that a relatively higher Li+ ion concentration can occur, creating an anodically polarized region resulting in the reduction of lithium ions on the negative and positive surfaces as the concentration gradient is relaxed. Typically, a lithium ion concentration gradient sufficient to cause lithium cluster formation is induced by the high rate, intermittent discharge of a lithium/silver vanadium oxide (Li/SVO) cell.
摘要翻译：描述了在放电期间防止锂簇在电池的负极部分和正极部分之间的桥接。这通过限制电池中的电解质的量来实现，从而消除电池堆上方的多余的电解液池。在这种过量的电解质中，可能发生相对较高的Li + +离子浓度，产生阳极极化区域，导致当浓度梯度松弛时，负极和正极表面上的锂离子的还原。通常，通过锂/银钒氧化物（Li / SVO）电池的高速率间歇放电，引起足以引起锂簇形成的锂离子浓度梯度。

7. 发明授权

US06872490B2 Preparation for a cathode material by a two-step reduction/oxidation synthesis process 失效
标题翻译：通过两步还原/氧化合成方法制备阴极材料
公开(公告)号：US06872490B2
公开(公告)日：2005-03-29
申请号：US10214813
申请日：2002-08-08
申请人： Randolph Leising , Esther S. Takeuchi
发明人： Randolph Leising , Esther S. Takeuchi
IPC分类号： C01G31/00 , H01M2/16 , H01M4/02 , H01M4/04 , H01M4/48 , H01M4/58 , H01M4/54
CPC分类号： H01M4/0471 , C01G31/00 , C01P2002/72 , C01P2006/12 , C01P2006/40 , H01M2/162 , H01M4/48 , H01M4/5825 , H01M2004/028 , H01M2300/0025
摘要： The current invention provides a method of preparing a cathode material in a sequential two-part reaction process. In the first step, silver nitrate and vanadium oxide are decomposed by heat under an inert atmosphere. In the second part of the process, the resulting intermediate material is heat treated under an oxidizing atmosphere. The sequential combination of steps produces a highly crystalline silver vanadium oxide cathode material which has properties not heretofore exhibited by SVO prepared by prior art methods.
摘要翻译：本发明提供了一种在连续两部分反应过程中制备阴极材料的方法。在第一步中，硝酸银和氧化钒在惰性气氛下通过加热分解。在该方法的第二部分中，将所得中间材料在氧化气氛下进行热处理。步骤的顺序组合产生高度结晶的银钒氧化物阴极材料，其具有迄今为止通过现有技术方法制备的SVO显示的性能。

8. 发明授权

US07820328B1 Electrochemical cell electrode with improved particle-to-particle contact and method of manufacturing 有权
标题翻译：具有改进的粒子与粒子接触的电化学电池电极和制造方法
公开(公告)号：US07820328B1
公开(公告)日：2010-10-26
申请号：US11829229
申请日：2007-07-27
申请人： Esther S. Takeuchi , Amy C. Marschilok , Randolph Leising
发明人： Esther S. Takeuchi , Amy C. Marschilok , Randolph Leising
IPC分类号： H01M4/62 , H01M4/02 , C08J9/26
CPC分类号： H01M4/621 , C08J9/26 , H01M4/0471 , H01M4/08 , H01M4/381 , H01M4/405 , H01M4/485 , H01M4/622 , H01M4/623 , H01M6/16 , H01M10/052 , Y10T29/49108
摘要： 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.
摘要翻译：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。

9. 发明申请

US20100185264A1 Method For Coating A Cathode Active Material With A Metal Oxide For Incorporation Into A Lithium Electrochemical Cell 审中-公开
标题翻译：用于将金属氧化物涂覆在锂电化学电池中的阴极活性材料的方法
公开(公告)号：US20100185264A1
公开(公告)日：2010-07-22
申请号：US11611904
申请日：2006-12-18
申请人： Randolph Leising , Esther S. Takeuchi
发明人： Randolph Leising , Esther S. Takeuchi
IPC分类号： A61N1/36 , H01M4/88
CPC分类号： H01M4/08 , H01M4/366 , H01M4/382 , H01M4/54 , H01M4/624 , H01M6/16
摘要： 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.
摘要翻译：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。

10. 发明授权

US07118829B2 Preparation of copper silver vanadium oxide from γ-phase SVO starting material 有权
标题翻译：从γ相SVO起始材料制备铜银钒氧化物
公开(公告)号：US07118829B2
公开(公告)日：2006-10-10
申请号：US10944661
申请日：2004-09-17
申请人： Randolph Leising , Esther S. Takeuchi
发明人： Randolph Leising , Esther S. Takeuchi
IPC分类号： H01M4/54 , C01G5/00 , C01G31/00
CPC分类号： 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
摘要： 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.
摘要翻译：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。

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