Separator having porous coating layer, manufacturing method of the same, and electrochemical device having the same
    15.
    发明授权
    Separator having porous coating layer, manufacturing method of the same, and electrochemical device having the same 有权
    具有多孔涂层的分离器,其制造方法和具有该涂层的电化学装置

    公开(公告)号:US09005795B2

    公开(公告)日:2015-04-14

    申请号:US13060530

    申请日:2011-02-24

    摘要: A separator includes a planar non-woven fabric substrate having a plurality of pores, and a porous coating layer provided on at least one surface of the non-woven fabric substrate and made of a mixture of a plurality of inorganic particles and a binder polymer, wherein the non-woven fabric substrate is made of superfine fibers having an average thickness of 0.5 to 10 μm, and wherein, among the pores in the non-woven fabric substrate, pores having a wide diameter of 0.1 to 70 μm are 50% or above of the entire pores. The above separator having the porous coating layer may generate the generation of leak current without increasing a loading weight of the porous coating layer since the non-woven fabric substrate having a controlled pore side by using superfine fibers of a predetermined thickness is used.

    摘要翻译: 隔板包括具有多个孔的平面无纺布基材和设置在无纺布基材的至少一个表面上并由多个无机颗粒和粘合剂聚合物的混合物制成的多孔涂层, 其特征在于,所述无纺布基材由平均厚度为0.5〜10μm的超细纤维构成,其中,在所述无纺布基材的孔中,宽度为0.1-70μm的孔为50%以上, 以上的整个毛孔。 使用具有多孔涂层的上述隔膜可以产生泄漏电流而不增加多孔涂层的负载重量,因为使用具有预定厚度的超细纤维的具有受控孔侧的无纺布基材。

    Method for manufacturing separator, separator manufactured by the method and method for manufacturing electrochemical device including the separator
    16.
    发明授权
    Method for manufacturing separator, separator manufactured by the method and method for manufacturing electrochemical device including the separator 有权
    用于制造分离器的方法,通过包括隔膜的电化学装置的制造方法和方法制造的隔板

    公开(公告)号:US08268056B2

    公开(公告)日:2012-09-18

    申请号:US13331057

    申请日:2011-12-20

    摘要: Disclosed is a method for manufacturing a separator. The method includes (S1) preparing a porous planar substrate having a plurality of pores, (S2) preparing a slurry containing inorganic particles dispersed therein and a polymer solution including a first binder polymer and a second binder polymer in a solvent, and sequentially coating the slurry on the porous substrate through a first discharge hole and a non-solvent incapable of dissolving the second binder polymer on the slurry through a second discharge hole adjacent to the first discharge hole, and (S3) simultaneously removing the solvent and the non-solvent by drying. According to the method, a separator with good bindability to electrodes can be manufactured in an easy manner. In addition, problems associated with the separation of inorganic particles in the course of manufacturing an electrochemical device can be avoided.

    摘要翻译: 公开了一种隔膜的制造方法。 该方法包括(S1)制备具有多个孔的多孔平面基板,(S2)制备含有分散在其中的无机颗粒的浆料和在溶剂中的包含第一粘合剂聚合物和第二粘合剂聚合物的聚合物溶液, 通过第一排出孔和非溶剂将多孔基材上的浆料通过与第一排出孔相邻的第二排出孔不溶于第二粘合剂聚合物,和(S3)同时除去溶剂和非溶剂 通过干燥。 根据该方法,可以容易地制造对电极具有良好的粘合性的隔膜。 此外,可以避免在制造电化学装置的过程中与无机颗粒分离相关的问题。

    Electrochemical device with improved cycle characteristics
    18.
    发明授权
    Electrochemical device with improved cycle characteristics 有权
    具有改善循环特性的电化学装置

    公开(公告)号:US08778524B2

    公开(公告)日:2014-07-15

    申请号:US13524169

    申请日:2012-06-15

    IPC分类号: H01M2/16 H01M2/18

    摘要: Disclosed is an electrochemical device. The electrochemical device includes: (a) a composite separator including a porous substrate, a first porous coating layer coated on one surface of the porous substrate, and a second porous coating layer coated on the other surface of the porous substrate; (b) an anode disposed to face the first porous coating layer; and (c) a cathode disposed to face the second porous coating layer. The first and second porous coating layers are each independently composed of a mixture including inorganic particles and a binder polymer. The first porous coating layer is thicker than the second porous coating layer. The electrochemical device has good thermal stability and improved cycle characteristics.

    摘要翻译: 公开了一种电化学装置。 电化学装置包括:(a)复合隔板,其包括多孔基材,涂覆在多孔基材的一个表面上的第一多孔涂层和涂覆在多孔基材的另一表面上的第二多孔涂层; (b)设置成面对第一多孔涂层的阳极; 和(c)设置成面对第二多孔涂层的阴极。 第一和第二多孔涂层各自独立地由包括无机颗粒和粘合剂聚合物的混合物组成。 第一多孔涂层比第二多孔涂层厚。 电化学装置具有良好的热稳定性和改善的循环特性。

    Separator including porous coating layer, method for manufacturing the separator and electrochemical device including the separator
    20.
    发明授权
    Separator including porous coating layer, method for manufacturing the separator and electrochemical device including the separator 有权
    包括多孔涂层的分离器,用于制造隔膜的方法和包括隔膜的电化学装置

    公开(公告)号:US08986892B2

    公开(公告)日:2015-03-24

    申请号:US13243081

    申请日:2011-09-23

    IPC分类号: H01M2/16 H01M10/052

    摘要: A separator includes a non-woven fabric substrate having pores, fine thermoplastic powder located inside the pores of the non-woven fabric substrate, and a porous coating layer disposed on at least one surface of the non-woven fabric substrate. The fine thermoplastic powder has an average diameter smaller than that of the pores and a melting point lower than the melting or decomposition point of the non-woven fabric substrate. The porous coating layer includes a mixture of inorganic particles and a binder polymer whose melting point is higher than the melting or decomposition point of the fine thermoplastic powder. In the porous coating layer, the inorganic particles are fixedly connected to each other by the binder polymer and the pores are formed by interstitial volumes between the inorganic particles. Previous filling of the large pores of the non-woven fabric substrate with the fine thermoplastic powder makes the porous coating layer uniform.

    摘要翻译: 隔膜包括具有孔的无纺布基材,位于无纺布基材的孔内的精细热塑性粉末,以及设置在无纺布基材的至少一个表面上的多孔涂层。 细的热塑性粉末的平均直径小于孔的直径,熔点低于无纺布基材的熔点或分解点。 多孔涂层包括无机颗粒和熔点高于细的热塑性粉末的熔点或分解点的粘合剂聚合物的混合物。 在多孔涂层中,无机颗粒通过粘合剂聚合物彼此固定连接,并且通过无机颗粒之间的间隙体积形成孔。 先前用细小的热塑性粉末填充无纺布基材的大孔,使多孔涂层均匀。