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    LOW FLAMMABILITY ELECTROLYTES FOR STABLE OPERATION OF LITHIUM AND SODIUM ION BATTERIES
    23.
    发明申请
    LOW FLAMMABILITY ELECTROLYTES FOR STABLE OPERATION OF LITHIUM AND SODIUM ION BATTERIES 审中-公开

    公开(公告)号：US20190123390A1

    公开(公告)日：2019-04-25

    申请号：US16119641

    申请日：2018-08-31

    Applicant: Battelle Memorial Institute

    Inventor： Wu Xu ,  Shuru Chen ,  Ji-Guang Zhang ,  Xia Cao ,  Haiping Jia ,  Bin Liu ,  Xiaodi Ren

    IPC: H01M10/0569 ,  H01M10/0568 ,  H01M10/052 ,  H01M4/38

    Abstract: Low flammability and nonflammable localized superconcentrated electrolytes (LSEs) for stable operation of lithium and sodium ion batteries are disclosed. Electrochemical devices including the low flammability and nonflammable LSEs are also disclosed. The low flammability and nonflammable LSEs include an active salt, a solvent comprising a flame retardant compound, wherein the active salt is soluble in the solvent, and a diluent in which the active salt is insoluble or poorly soluble. The LSE may further include a cosolvent, such as a carbonate, a sulfone, a sulfite, a sulfate, a carboxylate, an ether, a nitrogen-containing solvent, or any combination thereof. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.

    ELECTROLYTES FOR DENDRITE-FREE ENERGY STORAGE DEVICES HAVING HIGH COULOMBIC EFFCIENCY
    26.
    发明申请
    ELECTROLYTES FOR DENDRITE-FREE ENERGY STORAGE DEVICES HAVING HIGH COULOMBIC EFFCIENCY 审中-公开
    无电解能量储存设备的电解质具有高可靠性EFFCIENCY

    公开(公告)号：US20140178770A1

    公开(公告)日：2014-06-26

    申请号：US14192808

    申请日：2014-02-27

    Applicant: Battelle Memorial Institute

    Inventor： Wu Xu ,  Ji-Guang Zhang ,  Yaohui Zhang ,  Xilin Chen

    IPC: H01M10/0567 ,  H01M10/0569

    CPC classification number: H01M10/0567 ,  C25D3/42 ,  C25D13/22 ,  H01M10/0569

    Abstract: The Coulombic efficiency of lithium deposition/stripping can be improved while also substantially preventing lithium dendrite formation and growth using particular electrolyte compositions. Embodiments of the electrolytes include organic solvents and their mixtures to form high-quality SEI layers on the lithium anode surface and to prevent further reactions between lithium and electrolyte components. Embodiments of the disclosed electrolytes further include additives to suppress dendrite growth during charge/discharge processes. The solvent and additive can significantly improve both the Coulombic efficiency and smoothness of lithium deposition. By optimizing the electrolyte formulations, practical rechargeable lithium energy storage devices with significantly improved safety and long-term cycle life are achieved. The electrolyte can also be applied to other kinds of energy storage devices.

    Abstract translation: 可以提高锂沉积/汽提的库仑效率，同时还使用特定的电解质组合物基本上防止锂枝晶形成和生长。 电解质的实施方案包括有机溶剂及其混合物，以在锂阳极表面上形成高质量的SEI层并防止锂和电解质组分之间的进一步反应。 所公开的电解质的实施方案还包括在充电/放电过程中抑制枝晶生长的添加剂。 溶剂和添加剂可显着提高锂沉积的库仑效率和平滑度。 通过优化电解质配方，实现了具有显着提高的安全性和长期循环寿命的实用可再充电锂储能装置。 电解质也可以应用于其他种类的储能装置。

    Method to control the etching rate of materials
    28.
    发明授权
    Method to control the etching rate of materials 有权

    公开(公告)号：US12024436B2

    公开(公告)日：2024-07-02

    申请号：US17241743

    申请日：2021-04-27

    Applicant: BATTELLE MEMORIAL INSTITUTE

    Inventor： Ran Yi ,  Ji-Guang Zhang

    IPC: C01B33/023 ,  C03C15/00 ,  C09K13/08

    CPC classification number: C01B33/023 ,  C03C15/00 ,  C09K13/08 ,  C01P2004/61

    Abstract: A method for etching materials in which organic solvents are added to the etching mixture and combined in a mixing arrangement. When agitated organic materials mix with the etching agent and interact with the underlying material to form a shield around the etched areas that prevents the additional interaction of water with the newly etched areas and enables the etching of silicon oxides (SiOx) but does not oxidize Si. This method leads to milder reactions with less heat generation and avoids the safety hazards associated with conventional etching methods.

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