会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME
    • 锂二次电池及其制造方法
    • WO2007129839A1
    • 2007-11-15
    • PCT/KR2007/002206
    • 2007-05-04
    • LG CHEM, LTD.KIM, Sun-KyuCHOI, Seung-DonPARK, Hong-Kyu
    • KIM, Sun-KyuCHOI, Seung-DonPARK, Hong-Kyu
    • H01M10/04
    • H01M2/14H01M2/145H01M2/1646H01M2/166H01M4/0416H01M4/043H01M4/0435H01M4/1391H01M8/1004Y10T29/49108
    • Disclosed is a method for producing a lithium secondary battery, the method comprising the steps of: (a) distributing or scattering insulating powder partially or totally onto a surface of at least one of a cathode, an anode and a separator; (b) forming an electrode assembly by using the cathode, the anode and the separator; and (c) introducing the electrode assembly into a casing and sealing the casing. A lithium secondary battery obtained from the method is also disclosed. The method for manufacturing a lithium secondary battery, including a step of scattering insulating powder partially or totally onto the surface of a separator or the surface of at least one electrode facing to the separator, significantly reduces generation of an internal short circuit between both electrodes caused by internal or external factors during the assemblage of a battery and generation of low-voltage defects, and thus significantly improves yield of desired batteries.
    • 公开了一种锂二次电池的制造方法,该方法包括以下步骤:(a)将绝缘粉末部分或全部分散或散布到阴极,阳极和隔膜中的至少一个的表面上; (b)通过使用阴极,阳极和隔板形成电极组件; 和(c)将电极组件引入壳体并密封壳体。 还公开了从该方法获得的锂二次电池。 锂二次电池的制造方法,包括将绝缘粉末部分或全部分散在隔膜的表面或与隔膜相对的至少一个电极的表面的步骤,显着减少了两电极之间的内部短路的产生 通过内部或外部因素在组装电池和产生低电压缺陷,从而显着提高所需电池的产量。
    • 6. 发明申请
    • NON-AQUEOUS ELECTROLYTE ADDITIVE FOR IMPROVING SAFETY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME
    • 用于改善包括其安全和锂离子二次电池的非水电解质添加剂
    • WO2002095861A1
    • 2002-11-28
    • PCT/KR2002/000972
    • 2002-05-22
    • LG CHEM, LTD.PARK, Hong-KyuCHOI, Jeh-WonLEE, Yeon-HeeAN, Young-TackKIM, Hyeong-Jin
    • PARK, Hong-KyuCHOI, Jeh-WonLEE, Yeon-HeeAN, Young-TackKIM, Hyeong-Jin
    • H01M10/40
    • H01M10/0567H01M4/525H01M4/587H01M6/10H01M10/0525H01M10/4235H01M2300/002H01M2300/0037
    • The present invention relates to a non-aqueous electrolyte addditive for improving safety and a lithium secondary battery comprising the same, and more particularly to a non-aqueous electrolyte additive taht can improve cycle life and safety properties of a lithium ion secondary battery. According to the present invention, an organometallic compound represented by the Chemical Formula (1) is added to a non-aqueous electrolyte of a battery as an additive , and thus if a battery voltage is out of normal opration voltage range due to a short circuit and overcharge of a battery, etc., the non-aqueous electrolyte additive decomposes and a part of the decomposed additive polymerizes to form an insulating film on a cathode surface, and a part of the metal reacts with an insulating film formed on a cathode surface to improve thermal stability of the battery, thereby improving safety of the battery. Furthermore, in case of a short circuit a part of the metal oxide of the additive is removed an activity of lithium or is reduced movement speed of lithium by reacting with lithium rushed from an anode to a cathode, and thus safety of the battery can be obtained on a short circuit by delaying a flow of current.
    • 本发明涉及用于提高安全性的非水电解质添加剂和包含该非水电解质的锂二次电池,更具体地说,涉及一种非水电解质添加剂,可以改善锂离子二次电池的循环寿命和安全性能。 根据本发明,将由化学式(1)表示的有机金属化合物作为添加剂添加到电池的非水电解质中,因此如果电池电压由于短路而超出正常的opration电压范围 电池等的过充电,非水电解质添加剂分解,一部分分解添加剂聚合,在阴极表面形成绝缘膜,一部分金属与阴极面上形成的绝缘膜反应 以提高电池的热稳定性,从而提高电池的安全性。 此外,在短路的情况下,添加剂的金属氧化物的一部分除去锂的活性或通过与从阳极冲出的阴极反应的锂的移动速度降低,因此电池的安全性可以是 通过延迟电流来在短路上获得。