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18 条记录 (耗时 0.036 秒)

    Binary solvent method for battery
    1.
    发明授权
    Binary solvent method for battery 失效
    电池二元溶剂法

    公开(公告)号：US5972055A

    公开(公告)日：1999-10-26

    申请号：US680421

    申请日：1996-07-15

    申请人： Feng Gao ,  Jeremy Barker ,  Porter H. Mitchell ,  Jeffrey Swoyer ,  Arnie Stux

    发明人： Feng Gao ,  Jeremy Barker ,  Porter H. Mitchell ,  Jeffrey Swoyer ,  Arnie Stux

    IPC分类号： H01M6/16 ,  H01M6/18 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/38

    CPC分类号： H01M10/052 ,  H01M10/0565 ,  H01M6/164 ,  H01M6/188 ,  Y10T29/49115

    摘要： The subject invention discloses a novel method of providing a binary electrolyte-solvent solution in a solid battery system. A first component of this binary electrolyte solvent system is provided by a material which acts as a plasticizer in the formation of a solid polymeric matrix (separator), composite cathode and/or composite anode, and which also acts as an electrolyte solvent in the completed electrochemical cell. The second component of the binary electrolyte solvent system is an electrolyte solvent, which generally carries the electrolyte salt into the electrolytic cell precursor. The first and second components of the binary electrolyte solvent system mix within the electrolytic cell, dispersing the electrolyte salt throughout the binary electrolyte solvent system. The addition of the electrolyte salt to the electrolytic cell precursor acts to activate the cell precursor, and to form a functional electrolytic cell or battery system.

    摘要翻译： 本发明公开了一种在固体电池系统中提供二元电解质溶剂溶液的新方法。 这种二元电解质溶剂体系的第一个组分由一种在形成固体聚合物基质（分离器），复合阴极和/或复合阳极中作为增塑剂的材料提供，并且还可以在完成后的电解质溶剂 电化学电池。 二元电解质溶剂系统的第二组分是电解质溶剂，其通常将电解质盐携带到电解槽前体中。 二元电解质溶剂系统的第一和第二组分在电解池内混合，将电解质盐分散在整个二元电解质溶剂系统中。 将电解质盐添加到电解槽前体中起作用以活化细胞前体，并形成功能性电解池或电池系统。

    Lithium ion cells with improved thermal stability
    4.
    发明授权
    Lithium ion cells with improved thermal stability 失效
    具有改善的热稳定性的锂离子电池

    公开(公告)号：US6077624A

    公开(公告)日：2000-06-20

    申请号：US911476

    申请日：1997-08-14

    申请人： Porter H. Mitchell ,  Jeremy Barker ,  Tracy E. Kelley

    发明人： Porter H. Mitchell ,  Jeremy Barker ,  Tracy E. Kelley

    IPC分类号： H01M2/16 ,  H01M4/62 ,  H01M6/40 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0565

    CPC分类号： H01M10/052 ,  H01M10/0565 ,  H01M2/1653 ,  H01M4/621 ,  H01M4/622 ,  H01M4/623 ,  H01M10/0525 ,  H01M6/40

    摘要： The methods and compositions of the invention provide two solutions to reduce the reactivity of VDF-based copolymers to lithiated graphite. The two approaches can be used separately or combined. In one embodiment, the relative proportion of the VdF and the other fluorinated monomer (OFM, i.e. HFP) in the copolymer is significantly reduced below conventional formulations in order to reduce the reactivity of the copolymer. In a second approach, the reactivity of the copolymer, over a broad range of monomer VdF:OFM molar ratios, is reduced by deactivating the reactive sites on the copolymer, thereby blocking the ability to undergo undesired reaction during cell operation. These methods and compositions have heretofore not been proposed and are of primary importance in preventing large exothermic reaction which can lead to thermal runaway when conventional polymer formulations are utilized in batteries in the presence of reactive components such as lithiated graphite.

    摘要翻译： 本发明的方法和组合物提供了两种降低VDF基共聚物与锂化石墨反应性的方法。 这两种方法可以单独使用或组合使用。 在一个实施方案中，为了降低共聚物的反应性，VdF和其它氟化单体（OFM，即HFP）在共聚物中的相对比例显着降低到低于常规配方。 在第二种方法中，通过使共聚物上的反应性位点失活，共聚物在宽范围的单体VdF：OFM摩尔比下的反应性降低，从而阻止在电池操作过程中发生不希望的反应的能力。 迄今为止尚未提出这些方法和组合物，并且在防止在诸如锂化石墨的反应性组分的存在下将常规聚合物制剂用于电池中时可导致热失控的大的放热反应是最重要的。

    Method of preparing polymeric electrolytes
    5.
    发明授权
    Method of preparing polymeric electrolytes 失效
    制备高分子电解质的方法

    公开(公告)号：US5834136A

    公开(公告)日：1998-11-10

    申请号：US664732

    申请日：1996-06-17

    申请人： Feng Gao ,  Porter H. Mitchell

    发明人： Feng Gao ,  Porter H. Mitchell

    IPC分类号： C08F290/12 ,  C08F290/14 ,  H01M6/18 ,  H01M10/40

    CPC分类号： C08F290/14 ,  C08F290/128 ,  H01M6/181

    摘要： A method of fabricating polymeric matrices suitable for use in non-aqueous electrochemical cells is provided. The method includes forming an organic emulsion comprising an organic solvent and having a polar phase comprising polar polymer precursors and a non-polar phase comprising non-polar polymer precursors wherein the polar phase is substantially immiscible in the non-polar phase, said emulsion further including an effective amount of surfactant to maintain said emulsion; and initiating polymerization of said polar polymer precursors to form first polymers and of said non-polar polymer precursors to form second polymers wherein said first polymers are crosslinked by said second polymers to form a polymeric matrix. The polymeric matrix will have superior physical strength and puncture resistance.

    摘要翻译： 提供了一种制造适用于非水电化学电池的聚合物基质的方法。 该方法包括形成包含有机溶剂并且具有包含极性聚合物前体的极性相和包含非极性聚合物前体的非极性相的极性相的有机乳液，其中所述极性相在非极性相中基本上不混溶，所述乳液还包括 有效量的表面活性剂以维持所述乳液; 并引发所述极性聚合物前体的聚合以形成第一聚合物和所述非极性聚合物前体以形成第二聚合物，其中所述第一聚合物通过所述第二聚合物交联以形成聚合物基体。 聚合物基体将具有优异的物理强度和抗穿刺性。

    Fluoropolymer blends for polymeric electrolyte and electrodes
    6.
    发明授权
    Fluoropolymer blends for polymeric electrolyte and electrodes 失效
    用于聚合物电解质和电极的含氟聚合物共混物

    公开(公告)号：US5756230A

    公开(公告)日：1998-05-26

    申请号：US897037

    申请日：1997-07-18

    申请人： Feng Gao ,  Porter H. Mitchell

    发明人： Feng Gao ,  Porter H. Mitchell

    IPC分类号： H01M4/58 ,  H01M4/62 ,  H01M6/16 ,  H01M6/18

    CPC分类号： H01M10/052 ,  H01M10/0565 ,  H01M4/621 ,  H01M4/623 ,  H01M10/0525 ,  H01M4/587 ,  H01M6/168 ,  H01M6/188

    摘要： A method of improving the structural integrity of the binder and polymeric matrix components of electrochemical cell precursors by employing polymer blends comprising fluoropolymers is provided. The method forms porous polymeric structures that enhances the mass transport of ions in the cell which results in improved electrochemical performance. Films or webs of electrochemical cell precursors comprising the fluoropolymer blends are flexible which enhances processability.

    摘要翻译： 提供了通过使用包含含氟聚合物的聚合物共混物来改善电化学电池前体的粘合剂和聚合物基质组分的结构完整性的方法。 该方法形成多孔聚合物结构，其增强电池中离子的质量传递，这导致改善的电化学性能。 包含含氟聚合物共混物的电化学电池前体的膜或纤维网是柔性的，这增强了加工性能。

    Processing of high solids propellant
    9.
    依法登记的发明
    Processing of high solids propellant 失效
    高固体推进剂的加工

    公开(公告)号：USH273H

    公开(公告)日：1987-05-05

    申请号：US937803

    申请日：1986-12-01

    申请人： William S. Melvin ,  Porter H. Mitchell

    发明人： William S. Melvin ,  Porter H. Mitchell

    IPC分类号： C06B21/00

    CPC分类号： C06B21/0025 ,  C06B21/0008

    摘要： The mixing of high solids loaded propellants is accomplished under reduced viscosity conditions by employing near critical liquid (NCL) carbon dioxide as the processing fluid in a volume amount from about 10 to about 20 percent of the volume of the propellant ingredients.A typical propellant composition contains about 88 percent solids portion by weight comprised of ammonium perchlorate, aluminum powder, ballistic modifiers, and bonding agent and about 12 percent liquid portion by weight comprised of liquid polymers, plasticizers, and curatives.NCL carbon dioxide facilitates low viscosity mixing of propellant ingredients in a completely inert processing fluid. The method allows the entire mixing procedure to be conducted under reduced temperature conditions (e.g., 90.degree. F. vs 140.degree. F.), and thereby, provides for extended propellant pot life. Pressure mixing in a range of 760 psig to 1000 psig enables carbon dioxide to be maintained as a NCL to assist propellant mixing. When propellant mixing is completed, depressurization of the mixing chamber enables the NCL carbon dioxide to undergo a phase change to its gaseous state. Venting to ambient conditions, releases the gas from the propellant composition. Residual amounts of dissolved carbon dioxide can be completely removed under vacuum prior to propellant casting. If desired, the gaseous carbon dioxide can be contained and recycled for further use.