Safe and low temperature thermite reaction systems and method to form porous silicon

    公开(公告)号:US10246337B2

    公开(公告)日:2019-04-02

    申请号:US15436027

    申请日:2017-02-17

    Abstract: Embodiments of a safe, low-temperature reaction system and method for preparing porous silicon are disclosed. The porous silicon is prepared from porous silica, a low-melting metal halide, and a metal comprising aluminum, magnesium, or a combination thereof. Advantageously, embodiments of the disclosed methods can be performed at temperatures ≤400° C. Silicon produced by the disclosed methods has a porosity that is equal to or greater than the porous silica precursor. The porous silicon is suitable for use in electrodes.

    Graphene-based Battery Electrodes Having Continuous Flow Paths
    9.
    发明申请
    Graphene-based Battery Electrodes Having Continuous Flow Paths 审中-公开
    具有连续流路的石墨烯电池电极

    公开(公告)号:US20140295298A1

    公开(公告)日:2014-10-02

    申请号:US14270561

    申请日:2014-05-06

    Abstract: Some batteries can exhibit greatly improved performance by utilizing electrodes having randomly arranged graphene nanosheets forming a network of channels defining continuous flow paths through the electrode. The network of channels can provide a diffusion pathway for the liquid electrolyte and/or for reactant gases. Metal-air batteries can benefit from such electrodes. In particular Li-air batteries show extremely high capacities, wherein the network of channels allow oxygen to diffuse through the electrode and mesopores in the electrode can store discharge products.

    Abstract translation: 一些电池可以通过利用具有随机排列的石墨烯纳米片的电极而显示出极大的改进的性能,该电极形成限定通过电极的连续流动路径的通道网络。 通道网络可以为液体电解质和/或反应气体提供扩散途径。 金属空气电池可以从这样的电极中受益。 特别地,Li空气电池显示出极高的容量,其中通道网络允许氧气扩散通过电极,并且电极中的介孔可以存储放电产物。

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