Pre-Lithiation of Electrode Materials in a Semi-Solid Electrode
    1.
    发明申请
    Pre-Lithiation of Electrode Materials in a Semi-Solid Electrode 审中-公开
    电极材料在半固体电极中的预锂化

    公开(公告)号:US20160126543A1

    公开(公告)日:2016-05-05

    申请号:US14930991

    申请日:2015-11-03

    摘要: Embodiments described herein relate generally to electrochemical cells having pre-lithiated semi-solid electrodes, and particularly to semi-solid electrodes that are pre-lithiated during the mixing of the semi-solid electrode slurry such that a solid-electrolyte interface (SEI) layer is formed in the semi-solid electrode before the electrochemical cell formation. In some embodiments, a semi-solid electrode includes about 20% to about 90% by volume of an active material, about 0% to about 25% by volume of a conductive material, about 10% to about 70% by volume of a liquid electrolyte, and lithium (as lithium metal, a lithium-containing material, and/or a lithium metal equivalent) in an amount sufficient to substantially pre-lithiate the active material. The lithium metal is configured to form a solid-electrolyte interface (SEI) layer on a surface of the active material before an initial charging cycle of an electrochemical cell that includes the semi-solid electrode.

    摘要翻译: 本文所述的实施方案一般涉及具有预硫化半固体电极的电化学电池,特别涉及在半固体电极浆料的混合期间预硫化的半固体电极,使得固体 - 电解质界面(SEI)层 在电化学电池形成之前形成在半固体电极中。 在一些实施方案中,半固体电极包括约20体积%至约90体积%的活性材料,约0体积%至约25体积%的导电材料,约10体积%至约70体积%的液体 电解质和锂(作为锂金属,含锂材料和/或锂金属当量),其量足以基本上预先活化材料。 锂金属构造成在包括半固体电极的电化学电池的初始充电循环之前在活性材料的表面上形成固体 - 电解质界面(SEI)层。

    SINGLE POUCH BATTERY CELLS AND METHODS OF MANUFACTURE
    4.
    发明申请
    SINGLE POUCH BATTERY CELLS AND METHODS OF MANUFACTURE 审中-公开
    单电池电池和制造方法

    公开(公告)号:US20170025646A1

    公开(公告)日:2017-01-26

    申请号:US15185625

    申请日:2016-06-17

    IPC分类号: H01M2/02 H01M10/0525 H01M2/10

    摘要: Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.

    摘要翻译: 本文所述的装置,系统和方法涉及单个袋电池单元的制造和使用。 在一些实施例中,电化学电池包括耦合到小袋的第一部分的第一集电器,所述第一集电器具有设置在其上的第一电极材料,耦合到所述袋的第二部分的第二集电器,所述第二集电器 具有设置在其上的第二电极材料,以及设置在所述第一电极材料和所述第二电极材料之间的隔膜。 袋的第一部分耦合到袋的第二部分以封闭电化学电池。

    LITHIUM TITANATE CELL WITH REDUCED GASSING
    5.
    发明申请
    LITHIUM TITANATE CELL WITH REDUCED GASSING 失效
    钛酸锂细胞减少通气

    公开(公告)号:US20110067230A1

    公开(公告)日:2011-03-24

    申请号:US12885894

    申请日:2010-09-20

    IPC分类号: H01M10/04

    摘要: A method of manufacturing a lithium cell is disclosed. The method can include providing a lithium cell having an operating voltage range, where the lithium cell includes a negative electrode, a positive electrode, and an electrolyte in contact with, and between, the negative electrode and the positive electrode. The negative electrode can include lithium titanate and the electrolyte can include an additive. The method can also include reducing the additive to form a coating on a surface of the negative electrode in contact with the electrolyte. The reducing step can include overcharging the lithium cell to a voltage greater than an upper limit of the operating voltage range and dropping a voltage of the negative electrode to 0.2-1V vs. lithium.

    摘要翻译: 公开了一种制造锂电池的方法。 该方法可以包括提供具有工作电压范围的锂电池,其中锂电池包括负电极,正极和与负电极和正电极接触并在其间的电解质。 负极可以包括钛酸锂,并且电解质可以包括添加剂。 该方法还可以包括减少添加剂以在与电解质接触的负极表面上形成涂层。 还原步骤可以包括将锂电池过度充电至大于工作电压范围的上限的电压,并将负电极的电压降低至相对于锂的0.2-1V。