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    • 22. 发明公开
    • 세퍼레이터, 그 제조방법 및 이를 구비한 전기화학소자
    • 分离器及其制造方法及其电化学装置
    • KR1020130099463A
    • 2013-09-06
    • KR1020120020999
    • 2012-02-29
    • 주식회사 엘지화학도레이 배터리 세퍼레이터 필름 주식회사
    • 이준영김장배정근창
    • H01M2/16H01M10/0525
    • Y02E60/122Y02P70/54Y02T10/7011H01M2/16H01M10/0525
    • PURPOSE: A separator is provided to improve an adhesion power to an electrode and to enhance an interface adhesion strength with an electrode and a wettability in an electrolyte. CONSTITUTION: A separator comprises a porous base material; a porous organic-inorganic coating layer that is formed on at least one surface of the porous base material and includes a mixture of inorganic particles and a binder polymer; and a polydopamine coating layer that is dispersed to have multiple non-coating areas on a surface of the organic-inorganic coating layer. Also, a manufacturing method of the separator comprises the steps of: (S1) preparing the porous base material; (S2) forming the porous organic-inorganic coating layer by coating a coating solution, in which the binder polymer is dissolved in the solvent as the inorganic particles are dispersed, on at least one surface of the porous base material; and (S3) coating a polydopamine solution on the surface of the organic-inorganic coating layer.
    • 目的:提供一种分离器,以提高对电极的附着力并增强与电极的界面粘合强度和电解质中的润湿性。 构成:分离器包括多孔基材; 多孔有机无机涂层,其形成在所述多孔基材的至少一个表面上,并且包括无机颗粒和粘合剂聚合物的混合物; 以及分散在有机 - 无机涂层的表面上具有多个非涂覆区域的聚多巴胺涂层。 此外,隔膜的制造方法包括以下步骤:(S1)制备多孔基材; (S2)通过将所述粘合剂聚合物作为无机颗粒分散在溶剂中的涂布溶液涂布在所述多孔基材的至少一个表面上来形成所述多孔有机无机涂层; 和(S3)在有机 - 无机涂层的表面上涂布聚多巴胺溶液。
    • 28. 发明公开
    • 애노드용 바인더 용액, 그를 포함하는 애노드용 활물질 슬러리, 그 활물질 슬러리를 이용한 애노드 및 이를 포함하는 전기화학소자
    • 用于阳极的粘合剂解决方案,包括粘合剂溶液的阳极活性材料浆料,使用活性材料浆料的阳极和包括阳极的电化学装置
    • KR1020140147052A
    • 2014-12-29
    • KR1020140074405
    • 2014-06-18
    • 주식회사 엘지화학
    • 양지혜김장배이병배
    • H01M4/62H01M4/13H01M10/052
    • H01M4/622H01M4/13H01M4/133H01M10/052Y02E60/122
    • The present invention relates to a binder solution for an anode, which includes a thermally cross-linking polymer binder that is cross-linked by heat; and a solvent that dissolves the thermally cross-linking polymer binder and which has a hydrogen ion concentration ranging from a pH of 2.5 to 4.5, an active material slurry used for an anode and including the binder solution, an anode using the active material slurry, and an electrochemical device including the anode using the active material slurry. According to an embodiment of the present invention, since volume expansion of an anode active material caused by occlusion and release of lithium according to the performance of cycles of an electrochemical device is suppressed, durability of an anode active material layer is improved to improve a life characteristic of the electrochemical device, and excellent dispersibility of an active material slurry for an anode is maintained to improve coating stability of the anode active material layer.
    • 本发明涉及一种用于阳极的粘合剂溶液,其包括通过加热交联的热交联聚合物粘合剂; 和溶解热交联聚合物粘合剂并且其氢离子浓度范围为2.5至4.5的溶剂,用于阳极并包括粘合剂溶液的活性材料浆料,使用活性材料浆料的阳极, 以及包括使用活性物质浆料的阳极的电化学装置。 根据本发明的一个实施方案,由于根据电化学装置的循环性能而由锂的闭塞和释放引起的负极活性物质的体积膨胀被抑制,阳极活性物质层的耐久性得到改善以改善寿命 保持电化学装置的特性,并且保持阳极活性物质浆料的优异分散性,以改善阳极活性物质层的涂层稳定性。
    • 29. 发明公开
    • 리튬의 프리도핑 방법, 상기 방법을 포함하는 리튬 이차전지의 제조방법, 및 상기 제조방법으로부터 제조된 리튬 이차전지
    • 锂离子二次电池的制备方法,锂离子二次电池的制备方法
    • KR1020140111622A
    • 2014-09-19
    • KR1020140028192
    • 2014-03-11
    • 주식회사 엘지화학
    • 이상균최복규김경호김장배이병배정봉현
    • H01M4/139H01M10/058H01M10/052
    • H01M10/052H01M10/058H01M10/4242H01M10/446Y10T29/49108H01M4/139
    • The present invention relates to a lithium predoping method, and particularly, to a lithium predoping method in which one or more unit cells are uniformly predoped with lithium in large quantities. According to an aspect of the present invention, provided is a lithium predoping method including: a step of preparing one or more unit cells, which include a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; a step of disposing the prepared one or more unit cells in a reaction tank and connecting electrodes having the same pole to each other; a step of adding electrolyte to the reaction tank; a step of disposing a lithium metal plate in the electrolyte and connecting the lithium metal plate to the negative electrode; and a step of doping the negative electrode. According to the present invention, an initial irreversible capacity of a negative electrode is decreased, and metal ions of a positive electrode are prevented from penetrating SEI on the surface of the negative electrode, thereby improving the capacity and cycle life of a battery.
    • 本发明涉及一种锂预方法,特别涉及其中一个或多个单元电池被大量均匀地预先用锂的锂预方法。 根据本发明的一个方面,提供一种锂预取方法,包括:准备一个或多个单元电池的步骤,其包括正极,负极和设置在正极和负极之间的隔板; 将制备的一个或多个单电池设置在反应槽中并将具有相同极点的电极彼此连接的步骤; 向反应罐中加入电解液的步骤; 将锂金属板设置在电解质中并将锂金属板连接到负极的步骤; 以及掺杂负极的步骤。 根据本发明,负极的初始不可逆容量降低,并且防止正极的金属离子在负极的表面上渗透SEI,从而提高电池的容量和循环寿命。