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
    • 4. 发明专利
    • Cathode active material for lithium secondary cell and its manufacturing mathod as well as nouaqueous lithium secondary cell
    • 用于锂二次电池的阴极活性材料及其作为NOUAQUEOUS锂二次电池的制造方法
    • JP2005150102A
    • 2005-06-09
    • JP2004306421
    • 2004-10-21
    • Hitachi Metals Ltd日立金属株式会社
    • NAKAJIMA MOTOEINADA FUMIUCHIKAWA TERUO
    • C01G53/00H01M4/131H01M4/505H01M4/525H01M4/58H01M10/05H01M4/02H01M10/40
    • Y02P70/54
    • PROBLEM TO BE SOLVED: To provide a cathode active material with suppressed aggregation and a raised coating property and its manufacturing method as well as a lithium secondary cell having a good output property using the cathode active material by providing a distinction index whether the cathode active material is aggregated.
      SOLUTION: The cathode active material for a lithium secondary cell which is a nonaqueous lithium secondary cell being a lithium-containing compound oxide as a cathode active material absorbing and releasing a lithium ion has a median radius D50 ratio of the cathode active material (a value of D50 (without ultrasonic waves)/D50 (with ultrasonic waves)) of 1 or more and 2 or less by calculating laser diffractions when the cathode active material is dispersed in ethanol with the ultrasonic waves, and without using the ultrasonic waves. The cathode active material is manufactured with processes up to classification and packing after calcination under an environment of 20g(20g/m
      3 ) or less of a water vapor content per cubic meter.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供具有抑制聚集和提高的涂层性能的正极活性材料及其制造方法以及使用阴极活性材料具有良好输出性能的锂二次电池,通过提供一种区别指数 正极活性物质聚集。 解决方案:作为吸收和释放锂离子的正极活性物质的作为含锂复合氧化物的非水锂二次电池用锂二次电池用正极活性物质,正极活性物质的中值半径D50比例 (超声波)的D50(超声波)/ D50(超声波))为1以上且2以下时,通过计算激光衍射,当超声波分散在乙醇中时,不使用超声波 。 在20g(20g / m 3 / SP)以下的水蒸汽含量/立方米的环境下煅烧后,制造直至分类和包装的正极活性物质。 版权所有(C)2005,JPO&NCIPI
    • 10. 发明专利
    • Positive active material for nonaqueous lithium secondary battery, positive electrode using the active material, and nonaqueous lithium secondary battery
    • 非活性锂二次电池的正极活性物质,使用活性材料的正极和非碱性锂二次电池
    • JP2009021260A
    • 2009-01-29
    • JP2008245751
    • 2008-09-25
    • Hitachi Metals Ltd日立金属株式会社
    • NAKAJIMA MOTOEUCHIKAWA TERUOINADA FUMI
    • H01M10/052H01M4/131H01M4/1391H01M4/505H01M4/525H01M10/0566
    • Y02T10/7011
    • PROBLEM TO BE SOLVED: To increase discharge capacity of a positive electrode of a nonaqueous lithium secondary battery using a lithium-transition metal composite oxide in the positive electrode than conventional one. SOLUTION: A lithium secondary battery has a negative electrode, a positive electrode formed by coating a composite oxide including lithium and transition metal as the positive active material, a separator interposed between the negative electrode and the positive electrode, and a nonaqueous electrolyte. The positive active material of the lithium secondary battery is globular particles obtained in such a way that a transition metal compound, a lithium compound and water are mixed in a prescribed ratio to prepare slurry, the slurry is sprayed with a spray dryer having a four fluid nozzle, dried, and baked. The globular particles have an average particle diameter of 1-20 μm and a maximum particle diameter of 50 μm or less. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:使用正极中的锂 - 过渡金属复合氧化物,提高非水锂二次电池的正极的放电容量比常规锂离子电池的放电容量大。 解决方案:锂二次电池具有负极,通过涂覆包含锂和过渡金属的复合氧化物作为正极活性材料形成的正极,插入在负极和正极之间的隔膜,以及非水电解质 。 锂二次电池的正极活性物质是以过渡金属化合物,锂化合物和水以规定的比例混合以制备浆料而获得的球状颗粒,用具有四种流体的喷雾干燥器 喷嘴,干燥并烘烤。 球状颗粒的平均粒径为1-20μm,最大粒径为50μm以下。 版权所有(C)2009,JPO&INPIT