Method for producing silica aerogel and silica aerogel produced thereby

    公开(公告)号:US11279622B2

    公开(公告)日:2022-03-22

    申请号:US16069677

    申请日:2017-09-12

    Applicant: LG Chem, Ltd.

    Abstract: The present invention relates to a method for producing a silica aerogel and a silica aerogel produced thereby. The present invention provides a two-step process of a nucleation step of forming silica colloid particles by using a low-concentration silica precursor and a growth step of further adding a relatively high-concentration silica precursor to form a silica wet gel by using the silica colloid particles as a seed. Thus, the present invention provides a method for producing a silica aerogel of which mechanical stability is improved to enhance pore characteristics, and physical properties are readily controllable, and also provides a silica aerogel produced thereby.

    Method for producing silica aerogel and silica aerogel produced thereby

    公开(公告)号:US11242255B2

    公开(公告)日:2022-02-08

    申请号:US16794771

    申请日:2020-02-19

    Applicant: LG CHEM, LTD.

    Abstract: Disclosed herein is a method of preparing a silica aerogel. The silica aerogel is prepared by adding a first water glass solution and an acid catalyst to a reactor to form a first silica wet gel. The method further includes adding a second water glass solution and an acid catalyst to the first silica wet gel. The method further includes adding a surface modifier solution to the first silica wet gel to form a second silica wet gel. The method further includes drying a silica wet gel including the first silica wet gel and the second silica wet gel. The prepared silica aerogel has a tap density of 0.032 to 0.070 g/mL and a carbon content of 11.2 to 12.1 wt %.

    Battery Cell Of Stair-Like Structure
    6.
    发明申请
    Battery Cell Of Stair-Like Structure 有权
    阶梯式结构的电池

    公开(公告)号:US20140011070A1

    公开(公告)日:2014-01-09

    申请号:US13845762

    申请日:2013-03-18

    Applicant: LG Chem, Ltd.

    Abstract: Disclosed herein is a battery cell configured to have a structure in which an electrode assembly including a separator disposed between a cathode and an anode is mounted in a battery case, wherein the battery case includes an upper case and a lower case, the upper case and/or the lower case being provided with a receiving part, in which the electrode assembly is mounted, the electrode assembly includes a plurality of electrodes or unit cells stacked in a height direction on the basis of a plane, two or more of the electrodes or the unit cells having different planar sizes, and the receiving part of the battery case is provided with stair-like steps corresponding to an external appearance of the electrode assembly.

    Abstract translation: 这里公开了一种电池单元,其被配置为具有这样的结构,其中包括设置在阴极和阳极之间的隔板的电极组件安装在电池壳体中,其中电池壳体包括上壳体和下壳体,上壳体和 或者下壳体设置有接收部件,其中安装有电极组件,电极组件包括基于平面,两个或更多个电极或高度方向堆叠的多个电极或单元电池, 单元电池具有不同的平面尺寸,并且电池壳体的接收部分设置有对应于电极组件的外观的阶梯状步骤。

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