Nonaqueous electrolyte for electrical storage devices
    5.
    发明授权
    Nonaqueous electrolyte for electrical storage devices 失效
    用于蓄电装置的非水电解液

    公开(公告)号:US5965054A

    公开(公告)日:1999-10-12

    申请号:US910143

    申请日:1997-08-12

    摘要: Improved nonaqueous electrolytes for application in electrical storage devices such as electrochemical capacitors or batteries are disclosed. The electrolytes of the invention contain salts consisting of alkyl substituted, cyclic delocalized aromatic cations, and their perfluoro derivatives, and certain polyatomic anions having a van der Waals volume less than or equal to 100 .ANG..sup.3, preferably inorganic perfluoride anions and most preferably PF.sub.6.sup.-, the salts being dissolved in organic liquids, and preferably alkyl carbonate solvents, or liquid sulfur dioxide or combinations thereof, at a concentration of greater than 0.5M and preferably greater than 1.0M. Exemplary electrolytes comprise 1-ethyl-3-methylimidazolium hexafluorophosphate dissolved in a cyclic or acylic alkyl carbonate, or methyl formate, or a combination therof. These improved electrolytes have useful characteristics such as higher conductivity, higher concentration, higher energy storage capabilities, and higher power characteristics compared to prior art electrolytes. Stacked capacitor cells using electrolytes of the invention permit high energy, high voltage storage.

    摘要翻译: 公开了用于电存储装置如电化学电容器或电池中的改进的非水电解质。 本发明的电解质包含由烷基取代的环状离域芳族阳离子及其全氟衍生物组成的盐,以及范德华体积小于或等于100埃格里姆3,优选无机全氟化物阴离子,最优选PF6- 所述盐溶解在有机液体中,优选溶解在浓度大于0.5M,优选大于1.0M的烷基碳酸酯溶剂或液体二氧化硫或其组合中。 示例性电解质包括溶解在环状或酰基烷基碳酸酯或甲酸甲酯中的1-乙基-3-甲基咪唑六氟磷酸盐或其组合。 与现有技术的电解质相比,这些改进的电解质具有诸如更高的导电性,更高的浓度,更高的能量储存能力和更高的功率特性等有用的特性。 使用本发明的电解质的堆叠电容器电池允许高能量,高电压存储。

    Cyclic delocalized cations connected by spacer groups
    6.
    发明授权
    Cyclic delocalized cations connected by spacer groups 失效
    通过间隔基团连接的环状离域阳离子

    公开(公告)号:US06531241B1

    公开(公告)日:2003-03-11

    申请号:US09611787

    申请日:2000-07-07

    申请人: Alan B. McEwen

    发明人: Alan B. McEwen

    IPC分类号: H01G900

    摘要: Cyclic delocalized cations joined together by spacer groups, with anions of equal number to cations to maintain charge neutrality, are disclosed. These spacer groups may be organic or inorganic in origin and may vary in length. The spacer groups may be saturated, containing single bonds, or may be unsaturated, containing double and triple bonds. With appropriate design these materials can have melting and glass transition temperatures below, around, and above room temperature. The lyophobic character of these materials may be adjusted, providing unique properties. These materials are well suited for use as electrolytes, lubricants, solvents for extractions and for running reactions, biphase catalysis media, media for electroluminescent devices.

    摘要翻译: 公开了通过间隔基团连接在一起的环状离域阳离子,具有与阳离子相等数量的阴离子以保持电荷中性。 这些间隔基团可以是有机的或无机的,并且长度可以变化。 间隔基可以是饱和的,含有单键或可以是不饱和的,含有双键和三键。 通过适当的设计,这些材料可以具有低于,大约和高于室温的熔融和玻璃化转变温度。 这些材料的疏液性能可以调整,提供独特的性能。 这些材料非常适合用作电解质,润滑剂,用于萃取和运行反应的溶剂,双相催化介质,用于电致发光器件的介质。

    Nonaqueous electrical storage device
    7.
    发明授权
    Nonaqueous electrical storage device 失效
    非水电储存装置

    公开(公告)号:US5973913A

    公开(公告)日:1999-10-26

    申请号:US910146

    申请日:1997-08-12

    IPC分类号: H01G9/00 H01G9/155 H01G9/04

    摘要: An electrochemical capacitor is disclosed that features two, separated, high surface area carbon cloth electrodes sandwiched between two current collectors fabricated of a conductive polymer having a flow temperature greater than 130.degree. C., the perimeter of the electrochemical capacitor being sealed with a high temperature gasket to form a single cell device. The gasket material is a thermoplastic stable at temperatures greater than 100.degree. C., preferably a polyester or a polyurethane, and having a reflow temperature above 130.degree. C. but below the softening temperature of the current collector material. The capacitor packaging has good mechanical integrity over a wide temperature range, contributes little to the device equivalent series resistance (ESR), and is stable at high potentials. In addition, the packaging is designed to be easily manufacturable by assembly line methods. The individual cells can be stacked in parallel or series configuration to reach the desired device voltage and capacitance.

    摘要翻译: 公开了一种电化学电容器,其特征在于两个分离的,高表面​​积的碳布电极夹在由流动温度大于130℃的导电聚合物制成的两个集流器之间,电化学电容器的周边用高温 垫圈以形成单个电池装置。 垫圈材料是在大于100℃的温度下稳定的热塑性塑料,优选聚酯或聚氨酯,并且回流温度高于130℃但低于集流体材料的软化温度。 电容器封装在宽温度范围内具有良好的机械完整性,对器件等效串联电阻(ESR)的贡献很小,在高电位下稳定。 此外,包装设计成可以通过装配线方法容易地制造。 单个电池可以并联或串联配置堆叠以达到所需的器件电压和电容。