利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.014 秒)

    SURFACE-COATED POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    3.
    发明公开
    SURFACE-COATED POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME 有权
    表面包覆的正极活性物质，其制备方法以及包含该物质的锂二次电池

    公开(公告)号：EP3188290A1

    公开(公告)日：2017-07-05

    申请号：EP15835187.4

    申请日：2015-08-26

    申请人： UNIST (Ulsan National Institute of Science and Technology) ,  LG Chem, Ltd.

    发明人： JANG, Wook ,  LEE, Sang Young ,  CHO, Seung Beom ,  AHN, Jun Seong ,  PARK, Jang Hoon ,  KIM, Ju Myung

    IPC分类号： H01M4/62 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/60 ,  H01M10/052 ,  H01M4/36

    CPC分类号： H01M4/628 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/60 ,  H01M4/62 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028

    摘要： The present invention relates to a surface coated positive electrode active material, a preparation method thereof, and a lithium secondary battery including the same. More specifically, it relates to a positive electrode active material of which surface is coated with a nanofilm including polyimide (PI) and carbon black, a preparation method thereof, and a lithium secondary battery including the same. The positive electrode active material of which surface is coated with the nanofilm according to the present invention is capable of preventing direct contact of the positive electrode active material with an electrolyte thereby suppressing a side reaction between the positive electrode active material and the electrolyte, and as a result, a lifespan property of a lithium secondary battery using a positive electrode including the same may be significantly improved, and particularly, a lifespan property and conductivity are capable of being enhanced under a high temperature and high voltage condition.

    摘要翻译： 表面包覆正极活性物质及其制备方法和包含其的锂二次电池技术领域本发明涉及表面包覆正极活性物质， 更具体地，涉及其表面涂布有包含聚酰亚胺（PI）和炭黑的纳米薄膜的正极活性材料，其制备方法和包含其的锂二次电池。 本发明的表面被纳米薄膜包覆的正极活性物质能够防止正极活性物质与电解质的直接接触，从而抑制正极活性物质与电解质之间的副反应，并且作为 结果，使用包含该锂二次电池的正极的锂二次电池的寿命特性可以显着提高，并且特别是在高温高压条件下能够提高寿命特性和导电性。

    SURFACE-COATED CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
    5.
    发明公开
    SURFACE-COATED CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME 审中-公开
    IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT

    公开(公告)号：EP3101717A1

    公开(公告)日：2016-12-07

    申请号：EP15742875.6

    申请日：2015-01-28

    申请人： LG Chem, Ltd. ,  UNIST (Ulsan National Institute of Science and Technology)

    发明人： JANG, Wook ,  LEE, Sang Young ,  CHO, Seung Beom ,  PARK, Jang Hoon ,  KIM, Ju Myung

    IPC分类号： H01M4/62 ,  H01M4/525 ,  H01M4/505 ,  H01M4/13 ,  H01M10/052

    CPC分类号： H01M10/4235 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028

    摘要： The present invention provides a surface-coated cathode active material and a method for preparing the same, the surface-coated active material comprising: a cathode active material; and a nanofilm coated on a surface of the cathode active material, wherein the nanofilm includes polyimide (PI) and a fibrous carbon material. According to one embodiment of the present invention, when a surface of a cathode active material is coated with a nanofilm including polyamide and a fibrous carbon material, a direct contact with an electrolyte of the cathode active material is prevented so as to suppress a side reaction between the cathode active material and the electrolyte, such that the of a secondary battery is capable of being remarkably improved. Particularly, it is possible to improve life and conductivity under high-temperature and high-voltage conditions.

    摘要翻译： 本发明提供一种表面被覆正极活性物质及其制备方法，所述表面被覆活性物质包含：正极活性物质; 和纳米薄膜涂覆在正极活性物质的表面上，其中纳米薄膜包括聚酰亚胺（PI）和纤维状碳材料。 根据本发明的一个实施方案，当阴极活性材料的表面涂覆有包括聚酰胺和纤维状碳材料的纳米膜时，防止与正极活性物质的电解质的直接接触，以抑制副反应 在正极活性物质和电解质之间，能够显着地提高二次电池的能力。 特别地，可以在高温高压条件下改善寿命和导电性。