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
    • 54. 发明授权
    • Positive electrode active material powder for lithium secondary battery
    • 锂二次电池用正极活性物质粉末
    • US07381498B2
    • 2008-06-03
    • US11150451
    • 2005-06-13
    • Manabu SuharaTakuya MiharaKoichiro UedaYukimitsu Wakasugi
    • Manabu SuharaTakuya MiharaKoichiro UedaYukimitsu Wakasugi
    • H01M4/58H01M4/00H01M4/50H01M4/52
    • H01M4/505H01M4/131H01M4/485H01M4/525H01M10/052H01M2004/021
    • To provide a lithium-nickel-cobalt-manganese composite oxide powder for a positive electrode of a lithium secondary battery, which has a large volume capacity density and high safety and is excellent in the charge and discharge cyclic durability. A positive electrode active material powder for a lithium secondary battery characterized by comprising a first granular powder having a compression breaking strength of at least 50 MPa and a second granular powder having a compression breaking strength of less than 40 MPa, formed by agglomeration of many fine particles of a lithium composite oxide represented by the formula LipNixCoyMnzMqO2-aFa (wherein M is a transition metal element other than Ni, Co and Mn, Al or an alkaline earth metal element, 0.9≦p≦1.1, 0.2≦x≦0.8, 0≦y≦0.4, 0≦z≦0.5, y+z>0, 0≦q≦0.05, 1.9≦2−a≦2.1, x+y+z+q=1 and 0≦a≦0.02) to have an average particle size D50 of from 3 to 15 μm, in a weight ratio of the first granular powder/the second granular powder being from 50/50 to 90/10.
    • 为了提供一种锂二次电池的正极用锂镍钴锰复合氧化物粉末,其具有大容量密度和高安全性,并且充放电循环耐久性优异。 一种锂二次电池用正极活性物质粉末,其特征在于,具有压缩断裂强度为50MPa以上的第一粒状粉末和压缩断裂强度小于40MPa的第二粒状粉末,其特征在于, 由下式表示的锂复合氧化物的颗粒:由下式表示的锂复合氧化物颗粒:Mn x Mn x Mn (其中M是不同于Ni,Co和Mn,Al或碱土金属元素的过渡金属元素,0.9 <= p <= 1.1,0.2 <= x <= 0.8,0 <= y <= 0.4,0 <= z <= 0.5,y + z> 0,0 <= q <= 0.05,1.9 <= 2- a = 1.1,x + y + z + q = 1,0 <= a <= 0.02),平均粒径D50为3〜15μm,第一粒状粉末/ 粉末为50/50至90/10。