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    • 1. 发明申请
    • SEPARATION OF ELECTROLYTES
    • 电解质的分离
    • WO2008070059A2
    • 2008-06-12
    • PCT/US2007024805
    • 2007-12-04
    • SION POWER CORPMIKHAYLIK YURIY VBURGESS CATHIEKOVALEV IGORSCORDILIS-KELLEY CHARICLEA
    • MIKHAYLIK YURIY VBURGESS CATHIEKOVALEV IGORSCORDILIS-KELLEY CHARICLEA
    • H01M2/16H01M4/02H01M4/134H01M4/136H01M4/1395H01M10/0565H01M10/0566
    • H01M10/0569H01M2/1653H01M4/134H01M4/136H01M4/1395H01M10/0525H01M10/0565H01M10/0566H01M2300/0085H01M2300/0094H02J7/0068Y10T29/49115
    • Methods and articles relating to separation of electrolyte compositions within lithium batteries are provided. The lithium batteries described herein may include an anode having lithium as the active anode species and a cathode having sulfur as the active cathode species. Suitable electrolytes for the lithium batteries can comprise a heterogeneous electrolyte including a first electrolyte solvent (e.g., dioxolane (DOL)) that partitions towards the anode and is favorable towards the anode (referred to herein as an "anode-side electrolyte solvent") and a second electrolyte solvent (e.g., 1,2 - dimethoxyethane (DME)) that partitions towards the cathode and is favorable towards the cathode (and referred to herein as an "cathode-side electrolyte solvent"). By separating the electrolyte solvents during operation of the battery such that the anode- side electrolyte solvent is present disproportionately at the anode and the cathode-side electrolyte solvent is present disproportionately at the cathode, the battery can benefit from desirable characteristics of both electrolyte solvents (e.g., relatively low lithium reactivity of the anode-side electrolyte solvent and relatively high polysulfide solubility of the cathode-side electrolyte solvent).
    • 提供了关于在锂电池中分离电解质组合物的方法和制品。 本文所述的锂电池可以包括具有锂作为活性阳极物质的阳极和具有硫作为活性阴极物质的阴极。 用于锂电池的合适电解质可以包括非均相电解质,其包括朝向阳极分隔并且有利于阳极(在本文中称为“阳极侧电解质溶剂”)的第一电解质溶剂(例如,二氧戊环(DOL)),以及 第二电解质溶剂(例如,1,2-二甲氧基乙烷(DME)),其分隔成阴极并且有利于阴极(并且在本文中称为“阴极侧电解质溶剂”)。 通过在电池操作期间分离电解质溶剂使得阳极侧电解质溶剂在阳极处不成比例地存在,并且阴极侧电解质溶剂在阴极处不成比例地存在,电池可以受益于两种电解质溶剂的期望特性( 例如阳极侧电解质溶剂的锂反应性相对较低,阴极侧电解质溶剂的多硫化物溶解度相对较高)。
    • 2. 发明申请
    • ELECTROCHEMICAL CELLS COMPRISING POROUS STRUCTURES COMPRISING SULFUR
    • 包含硫的多孔结构的电化学电池
    • WO2011031297A3
    • 2011-07-21
    • PCT/US2010002329
    • 2010-08-24
    • SION POWER CORPSCORDILIS-KELLEY CHARICLEAMIKHAYLIK YURIY VKOVALEV IGOROLESHKO VLADIMIRCAMPBELL CHRISTOPHER T SAFFINITO JOHN DWILKENING WILLIAM FBURNSIDE SAVANNAH V
    • SCORDILIS-KELLEY CHARICLEAMIKHAYLIK YURIY VKOVALEV IGOROLESHKO VLADIMIRCAMPBELL CHRISTOPHER T SAFFINITO JOHN DWILKENING WILLIAM FBURNSIDE SAVANNAH V
    • H01M4/02H01B1/00H01M4/58H01M4/62H01M10/05
    • H01M4/364H01G11/06H01M4/0402H01M4/136H01M4/38H01M4/5815H01M4/583H01M4/60H01M4/602H01M4/64H01M4/668H01M4/80H01M2004/021H01M2010/4292Y02E60/122Y02E60/13Y02P70/54Y02T10/7022Y10T29/49108Y10T29/49115
    • The present invention relates to the use of porous structures comprising sulfur in electrochemical cells. Such materials may be useful, for example, in forming one or more electrodes in an electrochemical cell. For example, the systems and methods described herein may comprise the use of an electrode comprising a conductive porous support structure and a plurality of particles comprising sulfur (e.g., as an active species) substantially contained within the pores of the support structure. The inventors have unexpectedly discovered that, in some embodiments, the sizes of the pores within the porous support structure and/or the sizes of the particles within the pores can be tailored such that the contact between the electrolyte and the sulfur is enhanced, while the electrical conductivity and structural integrity of the electrode are maintained at sufficiently high levels to allow for effective operation of the cell. Also, the sizes of the pores within the porous support structures and/or the sizes of the particles within the pores can be selected such that any suitable ratio of sulfur to support material can be achieved while maintaining mechanical stability in the electrode. The inventors have also unexpectedly discovered that the use of porous support structures comprising certain materials (e.g., metals such as nickel) can lead to relatively large increases in cell performance. In some embodiments, methods for forming sulfur particles within pores of a porous support structure allow for a desired relationship between the particle size and pore size. The sizes of the pores within the porous support structure and/or the sizes of the particles within the pores can also be tailored such that the resulting electrode is able to withstand the application of an anisotropic force, while maintaining the structural integrity of the electrode.
    • 本发明涉及在电化学电池中使用包含硫的多孔结构。 例如,这种材料可用于在电化学电池中形成一个或多个电极。 例如,本文所述的系统和方法可以包括使用包含导电多孔支撑结构和基本上包含在支撑结构的孔内的包含硫(例如作为活性物质)的多个粒子的电极。 本发明人出乎意料地发现,在一些实施方案中,多孔载体结构内的孔的尺寸和/或孔内颗粒的尺寸可以被调整,使得电解质和硫之间的接触增强,而 电极的电导率和结构完整性保持在足够高的水平以允许电池的有效操作。 而且,可以选择多孔载体结构内的孔的尺寸和/或孔内颗粒的尺寸,使得可以实现硫与载体材料的任何合适的比例,同时维持电极中的机械稳定性。 发明人还出乎意料地发现,使用包含某些材料(例如,诸如镍的金属)的多孔载体结构可以导致电池性能的相对较大的增加。 在一些实施方案中,用于在多孔载体结构的孔内形成硫颗粒的方法允许颗粒尺寸和孔尺寸之间的期望关系。 多孔载体结构内孔的尺寸和/或孔内颗粒的尺寸也可以定制,使得所得电极能够承受施加各向异性力,同时保持电极的结构完整性。
    • 4. 发明申请
    • ELECTRICALLY NON-CONDUCTIVE MATERIALS FOR ELECTROCHEMICAL CELLS
    • 用于电化学电池的电导电材料
    • WO2012027457A3
    • 2012-05-24
    • PCT/US2011048944
    • 2011-08-24
    • SION POWER CORPMIKHAYLIK YURIY VAFFINITO JOHN DKOVALEV IGORSCHOCK RILEY OAKS
    • MIKHAYLIK YURIY VAFFINITO JOHN DKOVALEV IGORSCHOCK RILEY OAKS
    • H01M2/10H01M2/26
    • H01M10/0583H01M2/14H01M2/145H01M4/13H01M4/139H01M10/052Y10T29/49117
    • Articles, systems, and methods related to the configuration of electrically non- conductive materials and related components in electrochemical cells are generally described. Some inventive electrochemical cell configurations include an electrically non-conductive material (e.g., as part of the electrolyte) that is configured to wrap around the edge of an electrode to prevent short circuiting of the electrochemical cell. In some embodiments, the electrically non-conductive material layer can be arranged such that it includes first and second portions (one on either side of an electrode) as well as a third portion adjacent the edge of the electrode that directly connects (and, in some cases, is substantially continuous with) the first and second portions. The electrically non- conductive material layer can be relatively thin while maintaining relatively high electrical insulation between the anode and the cathode, allowing one to produce an electrochemical cell with a relatively low mass and/or volume. The arrangements described above can be formed, for example, by forming a multi-layer structure comprising an electrode and an electrically non-conductive material layer (e.g., as a coating), and folding the multi-layer structure such that the electrically non-conductive material covers the convex surface portion of the resulting crease.
    • 通常描述与电化学电池中的非导电材料和相关组分的配置相关的制品,系统和方法。 一些本发明的电化学电池构造包括被配置为围绕电极的边缘缠绕的非导电材料(例如,作为电解质的一部分),以防止电化学电池的短路。 在一些实施例中,非导电材料层可以被布置成使得其包括第一和第二部分(一个在电极的任一侧上)以及与电极的边缘相邻的第三部分,其直接连接(和, 一些情况,基本上连续)第一和第二部分。 电非导电材料层可以相对较薄,同时在阳极和阴极之间保持相对较高的电绝缘,从而允许产生具有相对较低质量和/或体积的电化学电池。 上述布置可以例如通过形成包括电极和非导电材料层(例如,作为涂层)的多层结构而形成,并且折叠多层结构, 导电材料覆盖所产生的折痕的凸表面部分。
    • 7. 发明申请
    • CATHODE FOR LITHIUM BATTERY
    • 锂电池阴极
    • WO2010107499A3
    • 2011-02-24
    • PCT/US2010000819
    • 2010-03-19
    • SION POWER CORPMIKHAYLIK YURIY VKUMARESAN KARTHIKEYAN
    • MIKHAYLIK YURIY VKUMARESAN KARTHIKEYAN
    • H01M4/583H01M4/02H01M4/38H01M10/05H01M10/0525
    • H01M10/058H01M4/133H01M4/1393H01M4/364H01M4/38H01M4/5815H01M4/587H01M10/052Y10T29/49108
    • The present invention relates to cathodes used in electrochemical cells. A force, or forces, applied to portions of an electrochemical cell as described in this application can reduce irregularity or roughening of an electrode surface of the cell, improving performance. The cathodes described herein may possess enhanced properties that render them particularly suitable for use in electrochemical cells designed to be charged and/or discharged while a force is applied. In some embodiments, the cathode retains sufficient porosity to charge and discharge effectively when a force is applied to the cell. Cathodes described herein may also comprise relatively high electrolyte-accessible conductive material (e.g., carbon) areas. The cathode may comprise a relatively low ratio of the amount of binder and/or mass of electrolyte to cathode active material (e.g., sulfur) ratio in some instances. In some embodiments, electrochemical cells comprising the cathodes described herein may achieve relatively high specific capacities and/or relatively high discharge current densities. In addition, the cathode described herein may exhibit relatively high cathode active material (e.g., sulfur) utilization during charge and discharge. In still further cases, the electrical conductivity between conductive material in the cathode (e.g., carbon) may be enhanced during the application of the force.
    • 本发明涉及电化学电池中使用的阴极。 施加到如本申请中描述的电化学电池的部分的力或力可以减小电池的电极表面的不规则性或粗糙度,从而提高性能。 本文所述的阴极可以具有增强的特性,使得它们特别适用于设计成在施加力时被充电和/或放电的电化学电池中。 在一些实施方案中,当将力施加到电池时,阴极保留足够的孔隙以有效地充电和放电。 本文所述的阴极还可以包括相对高的电解质可接近的导电材料(例如碳)区域。 在一些情况下,阴极可以包括粘合剂的量和/或电解质与阴极活性材料的质量比例(例如硫)的比例相对较低。 在一些实施例中,包含本文所述的阴极的电化学电池可以实现相对较高的比容量和/或相对高的放电电流密度。 此外,本文所述的阴极可以在充电和放电期间显示相对高的正极活性材料(例如硫)利用。 在另外的情况下,在施加力期间可以增强阴极中导电材料(例如碳)之间的电导率。
    • 10. 发明申请
    • RECHARGEABLE LITHIUM/WATER, LITHIUM/AIR BATTERIES
    • 可充电锂/水,锂/气电池
    • WO2007111895A3
    • 2007-12-06
    • PCT/US2007006962
    • 2007-03-21
    • SION POWER CORPAFFINITO JOHN DMIKHAYLIK YURIY VGERONOV YORDAN MSHEEHAN CHRISTOPHER J
    • AFFINITO JOHN DMIKHAYLIK YURIY VGERONOV YORDAN MSHEEHAN CHRISTOPHER J
    • H01M4/04H01M4/134H01M4/24H01M4/40H01M10/052H01M10/24H01M10/36H01M10/44
    • H01M10/44H01M4/0402H01M4/0407H01M4/134H01M4/24H01M4/366H01M4/382H01M4/387H01M4/40H01M10/052H01M10/24
    • Electrochemical cells, and more specifically, rechargeable batteries comprising lithium anodes (20) for use in water and/or air environments, as well as non-aqueous and non- air environments, are presented. In one embodiment, an electrochemical cell includes an anode (20) comprising lithium and a multi-layered structure positioned between the anode and an electrolyte (60) of the cell. A multi-layered structure can include at least a first single- ion conductive material layer (e.g., a lithiated metal layer), (40,42) and at least a first polymeric layer (50,52) positioned between the anode and the single-ion conductive material. The invention also can provide an electrode stabilization layer (24) positioned within the electrode, i.e., between one portion (21) and another portion of an electrode (23), to control depletion and re-plating of electrode material upon charge and discharge of a battery. Advantageously, electrochemical cells comprising combinations of structures described herein are not only compatible with environments that are typically unsuitable for lithium, but the cells may be also capable of displaying long cycle life, high lithium cycling efficiency, and high energy density.
    • 提出了电化学电池,更具体地说,包括用于水和/或空气环境的锂阳极(20)以及非水和非空气环境的可再充电电池。 在一个实施例中,电化学电池包括包含锂的阳极(20)和位于电池的阳极和电解质(60)之间的多层结构。 多层结构可以包括至少第一单离子导电材料层(例如,锂化金属层),(40,42)和至少第一聚合物层(50,52),其位于阳极和单体之间 导电材料。 本发明还可以提供一种位于电极内的电极稳定层(24),即在一个部分(21)和一个电极(23)的另一部分之间,以控制在充电和放电时电极材料的耗尽和再镀覆 一个电池 有利地,包含本文所述结构的电化学电池不仅与通常不适合于锂的环境兼容,而且电池还可以显示长循环寿命,高锂循环效率和高能量密度。