Magnesium-based energy storage systems and methods having improved electrolytes
    13.
    发明授权
    Magnesium-based energy storage systems and methods having improved electrolytes 有权
    镁基能量储存系统和方法具有改进的电解质

    公开(公告)号:US09525191B2

    公开(公告)日:2016-12-20

    申请号:US14084075

    申请日:2013-11-19

    CPC classification number: H01M10/0568 H01M10/054

    Abstract: Electrolytes for Mg-based energy storage devices can be formed from non-nucleophilic Mg2+ sources to provide outstanding electrochemical performance and improved electrophilic susceptibility compared to electrolytes employing nucleophilic sources. The instant electrolytes are characterized by high oxidation stability (up to 3.4 V vs Mg), improved electrophile compatibility and electrochemical reversibility (up to 100% coulombic efficiency). Synthesis of the Mg2+ electrolytes utilizes inexpensive and safe magnesium dihalides as non-nucleophilic Mg2+ sources in combination with Lewis acids, MRaX3-a (for 3≧a≧1). Furthermore, addition of free-halide-anion donors can improve the coulombic efficiency of Mg electrolytes from nucleophilic or non-nucleophilic Mg2+ sources.

    Abstract translation: 用于Mg基能量储存装置的电解质可以由非亲核Mg 2+源形成,以提供与使用亲核源的电解质相比优异的电化学性能和改善的亲电子敏感性。 瞬时电解质的特征在于高氧化稳定性(高达3.4V对Mg),改善的亲电子相容性和电化学可逆性(高达100%的库仑效率)。 Mg2 +电解质的合成使用廉价和安全的二卤化镁作为非路易斯酸MRaX3-a(对于3≥a≥1)的非亲核Mg 2+源。 此外,添加游离卤化物 - 阴离子供体可以提高Mg电解质从亲核或非亲核Mg2 +来源的库仑效率。

    Hybrid Energy Storage Devices Having Sodium
    16.
    发明申请
    Hybrid Energy Storage Devices Having Sodium 有权
    具有钠的混合储能装置

    公开(公告)号:US20140023903A1

    公开(公告)日:2014-01-23

    申请号:US13948857

    申请日:2013-07-23

    CPC classification number: H01M10/3909 H01M10/399

    Abstract: Sodium energy storage devices employing aspects of both ZEBRA batteries and traditional Na—S batteries can perform better than either battery alone. The hybrid energy storage devices described herein can include a sodium anode, a molten sodium salt catholyte, and a positive electrode that has active species containing sulfur. Additional active species can include a transition metal source and NaCl. As a product of the energy discharge process, Na2Sx forms in which x is less than three.

    Abstract translation: 采用ZEBRA电池和传统Na-S电池方面的钠能量储存装置可以比单独使用的电池性能更好。 本文所述的混合储能装置可包括钠阳极,熔融钠盐阴极电解液和具有含硫活性物质的正电极。 另外的活性物质可以包括过渡金属源和NaCl。 作为能量放电过程的产物,形成其中x小于3的Na 2 S x。

    Intermediate Temperature Sodium Metal-Halide Energy Storage Devices
    17.
    发明申请
    Intermediate Temperature Sodium Metal-Halide Energy Storage Devices 审中-公开
    中温钠金属卤化物储能装置

    公开(公告)号:US20130196224A1

    公开(公告)日:2013-08-01

    申请号:US13752936

    申请日:2013-01-29

    Abstract: Sodium metal-halide energy storage devices utilizing a substituting salt in its secondary electrolyte can operate at temperatures lower than conventional ZEBRA batteries while maintaining desirable performance and lifetime characteristics. According to one example, a sodium metal-halide energy storage device operates at a temperature less than or equal to 200° C. and has a liquid secondary electrolyte having MxNa1-yAlCl4-yHy, wherein M is a metal cation of a substituting salt, H is an anion of the substituting salt, y is a mole fraction of substituted Na and Cl, and x is a ratio of y over r, where r is the oxidation state of M. The melting temperature of the substituting salt is less than that of NaCl.

    Abstract translation: 在其二次电解质中使用取代盐的金属卤化物储能装置可以在比常规ZEBRA电池低的温度下工作,同时保持期望的性能和寿命特性。 根据一个实例,钠金属卤化物能量储存装置在小于或等于200℃的温度下工作,并具有具有MxNa1-yAlCl4-yHy的液体二次电解质,其中M是取代盐的金属阳离子, H是取代盐的阴离子,y是取代的Na和Cl的摩尔分数,x是y与r的比值,其中r是M的氧化态。取代盐的熔融温度小于 的NaCl。

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